path: root/composer/e-msg-composer.c

/*
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with the program; if not, see <http://www.gnu.org/licenses/>  
 *
 *
 * Authors:
 *      Ettore Perazzoli (ettore@ximian.com)
 *      Jeffrey Stedfast (fejj@ximian.com)
 *      Miguel de Icaza  (miguel@ximian.com)
 *      Radek Doulik     (rodo@ximian.com)
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <unistd.h>
#include <ctype.h>
#include <fcntl.h>
#include <errno.h>

#include <glib.h>

#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>

#include <gconf/gconf.h>
#include <gconf/gconf-client.h>

#include <glade/glade.h>

#include "e-util/e-dialog-utils.h"
#include "misc/e-charset-picker.h"
#include "e-util/e-error.h"
#include "e-util/e-mktemp.h"
#include "e-util/e-plugin-ui.h"
#include "e-util/e-util-private.h"
#include "e-util/e-account-utils.h"
#include "e-util/e-signature-utils.h"
#include "e-signature-combo-box.h"
#include "shell/e-shell.h"

#include <camel/camel-charset-map.h>
#include <camel/camel-cipher-context.h>
#include <camel/camel-folder.h>
#include <camel/camel-gpg-context.h>
#include <camel/camel-iconv.h>
#include <camel/camel-mime-filter-charset.h>
#include <camel/camel-mime-filter-tohtml.h>
#include <camel/camel-multipart-encrypted.h>
#include <camel/camel-multipart-signed.h>
#include <camel/camel-stream-filter.h>
#include <camel/camel-stream-fs.h>
#include <camel/camel-stream-mem.h>
#include <camel/camel-string-utils.h>
#if defined (HAVE_NSS)
#include <camel/camel-smime-context.h>
#endif

#include "mail/em-utils.h"
#include "mail/mail-tools.h"

#include "e-msg-composer.h"
#include "e-attachment.h"
#include "e-composer-autosave.h"
#include "e-composer-private.h"
#include "e-composer-header-table.h"

#ifdef HAVE_XFREE
#include <X11/XF86keysym.h>
#endif

#define d(x)

#define E_MSG_COMPOSER_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_MSG_COMPOSER, EMsgComposerPrivate))

#define E_MSG_COMPOSER_VISIBLE_MASK_SENDER \
    (E_MSG_COMPOSER_VISIBLE_FROM | \
     E_MSG_COMPOSER_VISIBLE_REPLYTO)

#define E_MSG_COMPOSER_VISIBLE_MASK_BASIC \
    (E_MSG_COMPOSER_VISIBLE_MASK_SENDER | \
     E_MSG_COMPOSER_VISIBLE_SUBJECT)

#define E_MSG_COMPOSER_VISIBLE_MASK_RECIPIENTS \
    (E_MSG_COMPOSER_VISIBLE_TO | \
     E_MSG_COMPOSER_VISIBLE_CC | \
     E_MSG_COMPOSER_VISIBLE_BCC)

#define E_MSG_COMPOSER_VISIBLE_MASK_MAIL \
    (E_MSG_COMPOSER_VISIBLE_MASK_BASIC | \
     E_MSG_COMPOSER_VISIBLE_MASK_RECIPIENTS)

#define E_MSG_COMPOSER_VISIBLE_MASK_POST \
    (E_MSG_COMPOSER_VISIBLE_MASK_BASIC | \
     E_MSG_COMPOSER_VISIBLE_POSTTO)

typedef enum {
    E_MSG_COMPOSER_VISIBLE_FROM       = (1 << 0),
    E_MSG_COMPOSER_VISIBLE_REPLYTO    = (1 << 1),
    E_MSG_COMPOSER_VISIBLE_TO         = (1 << 2),
    E_MSG_COMPOSER_VISIBLE_CC         = (1 << 3),
    E_MSG_COMPOSER_VISIBLE_BCC        = (1 << 4),
    E_MSG_COMPOSER_VISIBLE_POSTTO     = (1 << 5),
    E_MSG_COMPOSER_VISIBLE_SUBJECT    = (1 << 7)
} EMsgComposerHeaderVisibleFlags;

enum {
    SEND,
    SAVE_DRAFT,
    PRINT,
    LAST_SIGNAL
};

static gpointer parent_class;
static guint signals[LAST_SIGNAL];

/* All the composer windows open, for bookkeeping purposes.  */
static GSList *all_composers = NULL;

/* local prototypes */
static GList *add_recipients (GList *list, const gchar *recips);

static void handle_mailto (EMsgComposer *composer, const gchar *mailto);

/* used by e_msg_composer_add_message_attachments () */
static void add_attachments_from_multipart (EMsgComposer *composer, CamelMultipart *multipart,
                        gboolean just_inlines, gint depth);

/* used by e_msg_composer_new_with_message () */
static void handle_multipart (EMsgComposer *composer, CamelMultipart *multipart, gint depth);
static void handle_multipart_alternative (EMsgComposer *composer, CamelMultipart *multipart, gint depth);
static void handle_multipart_encrypted (EMsgComposer *composer, CamelMimePart *multipart, gint depth);
static void handle_multipart_signed (EMsgComposer *composer, CamelMultipart *multipart, gint depth);

static EDestination**
destination_list_to_vector_sized (GList *list, gint n)
{
    EDestination **destv;
    gint i = 0;

    if (n == -1)
        n = g_list_length (list);

    if (n == 0)
        return NULL;

    destv = g_new (EDestination *, n + 1);
    while (list != NULL && i < n) {
        destv[i] = E_DESTINATION (list->data);
        list->data = NULL;
        i++;
        list = g_list_next (list);
    }
    destv[i] = NULL;

    return destv;
}

static EDestination**
destination_list_to_vector (GList *list)
{
    return destination_list_to_vector_sized (list, -1);
}

#define LINE_LEN 72

static CamelTransferEncoding
best_encoding (GByteArray *buf, const gchar *charset)
{
    gchar *in, *out, outbuf[256], *ch;
    gsize inlen, outlen;
    gint status, count = 0;
    iconv_t cd;

    if (!charset)
        return -1;

    cd = camel_iconv_open (charset, "utf-8");
    if (cd == (iconv_t) -1)
        return -1;

    in = (gchar *) buf->data;
    inlen = buf->len;
    do {
        out = outbuf;
        outlen = sizeof (outbuf);
        status = camel_iconv (cd, (const gchar **) &in, &inlen, &out, &outlen);
        for (ch = out - 1; ch >= outbuf; ch--) {
            if ((guchar) *ch > 127)
                count++;
        }
    } while (status == (gsize) -1 && errno == E2BIG);
    camel_iconv_close (cd);

    if (status == (gsize) -1 || status > 0)
        return -1;

    if (count == 0)
        return CAMEL_TRANSFER_ENCODING_7BIT;
    else if (count <= buf->len * 0.17)
        return CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE;
    else
        return CAMEL_TRANSFER_ENCODING_BASE64;
}

static gchar *
best_charset (GByteArray *buf, const gchar *default_charset, CamelTransferEncoding *encoding)
{
    gchar *charset;

    /* First try US-ASCII */
    *encoding = best_encoding (buf, "US-ASCII");
    if (*encoding == CAMEL_TRANSFER_ENCODING_7BIT)
        return NULL;

    /* Next try the user-specified charset for this message */
    *encoding = best_encoding (buf, default_charset);
    if (*encoding != -1)
        return g_strdup (default_charset);

    /* Now try the user's default charset from the mail config */
    charset = e_composer_get_default_charset ();
    *encoding = best_encoding (buf, charset);
    if (*encoding != -1)
        return charset;

    /* Try to find something that will work */
    if (!(charset = (char *) camel_charset_best ((const gchar *)buf->data, buf->len))) {
        *encoding = CAMEL_TRANSFER_ENCODING_7BIT;
        return NULL;
    }

    *encoding = best_encoding (buf, charset);

    return g_strdup (charset);
}

static void
clear_current_images (EMsgComposer *composer)
{
    EMsgComposerPrivate *p = composer->priv;
    g_list_free (p->current_images);
    p->current_images = NULL;
}

void
e_msg_composer_clear_inlined_table (EMsgComposer *composer)
{
    EMsgComposerPrivate *p = composer->priv;

    g_hash_table_remove_all (p->inline_images);
    g_hash_table_remove_all (p->inline_images_by_url);
}

static void
add_inlined_images (EMsgComposer *composer, CamelMultipart *multipart)
{
    EMsgComposerPrivate *p = composer->priv;

    GList *d = p->current_images;
    GHashTable *added;

    added = g_hash_table_new (g_direct_hash, g_direct_equal);
    while (d) {
        CamelMimePart *part = d->data;

        if (!g_hash_table_lookup (added, part)) {
            camel_multipart_add_part (multipart, part);
            g_hash_table_insert (added, part, part);
        }
        d = d->next;
    }
    g_hash_table_destroy (added);
}

/* These functions builds a CamelMimeMessage for the message that the user has
 * composed in `composer'.
 */

static void
set_recipients_from_destv (CamelMimeMessage *msg,
               EDestination **to_destv,
               EDestination **cc_destv,
               EDestination **bcc_destv,
               gboolean redirect)
{
    CamelInternetAddress *to_addr;
    CamelInternetAddress *cc_addr;
    CamelInternetAddress *bcc_addr;
    CamelInternetAddress *target;
    const gchar *text_addr, *header;
    gboolean seen_hidden_list = FALSE;
    gint i;

    to_addr  = camel_internet_address_new ();
    cc_addr  = camel_internet_address_new ();
    bcc_addr = camel_internet_address_new ();

    for (i = 0; to_destv != NULL && to_destv[i] != NULL; ++i) {
        text_addr = e_destination_get_address (to_destv[i]);

        if (text_addr && *text_addr) {
            target = to_addr;
            if (e_destination_is_evolution_list (to_destv[i])
                && !e_destination_list_show_addresses (to_destv[i])) {
                target = bcc_addr;
                seen_hidden_list = TRUE;
            }

            camel_address_decode (CAMEL_ADDRESS (target), text_addr);
        }
    }

    for (i = 0; cc_destv != NULL && cc_destv[i] != NULL; ++i) {
        text_addr = e_destination_get_address (cc_destv[i]);
        if (text_addr && *text_addr) {
            target = cc_addr;
            if (e_destination_is_evolution_list (cc_destv[i])
                && !e_destination_list_show_addresses (cc_destv[i])) {
                target = bcc_addr;
                seen_hidden_list = TRUE;
            }

            camel_address_decode (CAMEL_ADDRESS (target), text_addr);
        }
    }

    for (i = 0; bcc_destv != NULL && bcc_destv[i] != NULL; ++i) {
        text_addr = e_destination_get_address (bcc_destv[i]);
        if (text_addr && *text_addr) {
            camel_address_decode (CAMEL_ADDRESS (bcc_addr), text_addr);
        }
    }

    header = redirect ? CAMEL_RECIPIENT_TYPE_RESENT_TO : CAMEL_RECIPIENT_TYPE_TO;
    if (camel_address_length (CAMEL_ADDRESS (to_addr)) > 0) {
        camel_mime_message_set_recipients (msg, header, to_addr);
    } else if (seen_hidden_list) {
        camel_medium_set_header (CAMEL_MEDIUM (msg), header, "Undisclosed-Recipient:;");
    }

    header = redirect ? CAMEL_RECIPIENT_TYPE_RESENT_CC : CAMEL_RECIPIENT_TYPE_CC;
    if (camel_address_length (CAMEL_ADDRESS (cc_addr)) > 0) {
        camel_mime_message_set_recipients (msg, header, cc_addr);
    }

    header = redirect ? CAMEL_RECIPIENT_TYPE_RESENT_BCC : CAMEL_RECIPIENT_TYPE_BCC;
    if (camel_address_length (CAMEL_ADDRESS (bcc_addr)) > 0) {
        camel_mime_message_set_recipients (msg, header, bcc_addr);
    }

    camel_object_unref (to_addr);
    camel_object_unref (cc_addr);
    camel_object_unref (bcc_addr);
}

static void
build_message_headers (EMsgComposer *composer,
                       CamelMimeMessage *msg,
                       gboolean redirect)
{
    EComposerHeaderTable *table;
    EAccount *account;
    const gchar *subject;
    const gchar *reply_to;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (CAMEL_IS_MIME_MESSAGE (msg));

    table = e_msg_composer_get_header_table (composer);

    /* Subject: */
    subject = e_composer_header_table_get_subject (table);
    camel_mime_message_set_subject (msg, subject);

    /* From: / Resent-From: */
    account = e_composer_header_table_get_account (table);
    if (account != NULL) {
        CamelInternetAddress *addr;
        const gchar *name = account->id->name;
        const gchar *address = account->id->address;

        addr = camel_internet_address_new ();
        camel_internet_address_add (addr, name, address);

        if (redirect) {
            gchar *value;

            value = camel_address_encode (CAMEL_ADDRESS (addr));
            camel_medium_set_header (
                CAMEL_MEDIUM (msg), "Resent-From", value);
            g_free (value);
        } else
            camel_mime_message_set_from (msg, addr);

        camel_object_unref (addr);
    }

    /* Reply-To: */
    reply_to = e_composer_header_table_get_reply_to (table);
    if (reply_to != NULL && *reply_to != '\0') {
        CamelInternetAddress *addr;

        addr = camel_internet_address_new ();

        if (camel_address_unformat (CAMEL_ADDRESS (addr), reply_to) > 0)
            camel_mime_message_set_reply_to (msg, addr);

        camel_object_unref (addr);
    }

    /* To:, Cc:, Bcc: */
    if (e_composer_header_table_get_header_visible (table, E_COMPOSER_HEADER_TO) ||
        e_composer_header_table_get_header_visible (table, E_COMPOSER_HEADER_CC) ||
        e_composer_header_table_get_header_visible (table, E_COMPOSER_HEADER_BCC)) {
        EDestination **to, **cc, **bcc;

        to = e_composer_header_table_get_destinations_to (table);
        cc = e_composer_header_table_get_destinations_cc (table);
        bcc = e_composer_header_table_get_destinations_bcc (table);

        set_recipients_from_destv (msg, to, cc, bcc, redirect);

        e_destination_freev (to);
        e_destination_freev (cc);
        e_destination_freev (bcc);
    }

    /* X-Evolution-PostTo: */
    if (e_composer_header_table_get_header_visible (table, E_COMPOSER_HEADER_POST_TO)) {
        CamelMedium *medium = CAMEL_MEDIUM (msg);
        const gchar *name = "X-Evolution-PostTo";
        GList *list, *iter;

        camel_medium_remove_header (medium, name);

        list = e_composer_header_table_get_post_to (table);
        for (iter = list; iter != NULL; iter = iter->next) {
            gchar *folder = iter->data;
            camel_medium_add_header (medium, name, folder);
            g_free (folder);
        }
        g_list_free (list);
    }
}

static CamelMimeMessage *
build_message (EMsgComposer *composer,
               gboolean html_content,
               gboolean save_html_object_data)
{
    GtkhtmlEditor *editor;
    EMsgComposerPrivate *p = composer->priv;

    EAttachmentView *view;
    EAttachmentStore *store;
    EComposerHeaderTable *table;
    GtkToggleAction *action;
    CamelDataWrapper *plain, *html, *current;
    CamelTransferEncoding plain_encoding;
    const gchar *iconv_charset = NULL;
    GPtrArray *recipients = NULL;
    CamelMultipart *body = NULL;
    CamelContentType *type;
    CamelMimeMessage *new;
    CamelSession *session;
    CamelStream *stream;
    CamelMimePart *part;
    CamelException ex;
    GByteArray *data;
    EAccount *account;
    gchar *charset;
    gboolean pgp_sign;
    gboolean pgp_encrypt;
    gboolean smime_sign;
    gboolean smime_encrypt;
    gint i;

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    editor = GTKHTML_EDITOR (composer);
    table = e_msg_composer_get_header_table (composer);
    account = e_composer_header_table_get_account (table);
    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);
    session = e_msg_composer_get_session (composer);

    /* evil kludgy hack for Redirect */
    if (p->redirect) {
        build_message_headers (composer, p->redirect, TRUE);
        camel_object_ref (p->redirect);
        return p->redirect;
    }

    new = camel_mime_message_new ();
    build_message_headers (composer, new, FALSE);
    for (i = 0; i < p->extra_hdr_names->len; i++) {
        camel_medium_add_header (CAMEL_MEDIUM (new),
                     p->extra_hdr_names->pdata[i],
                     p->extra_hdr_values->pdata[i]);
    }

    /* Message Disposition Notification */
    action = GTK_TOGGLE_ACTION (ACTION (REQUEST_READ_RECEIPT));
    if (gtk_toggle_action_get_active (action)) {
        gchar *mdn_address = account->id->reply_to;
        if (!mdn_address || !*mdn_address)
            mdn_address = account->id->address;

        camel_medium_add_header (
            CAMEL_MEDIUM (new),
            "Disposition-Notification-To", mdn_address);
    }

    /* Message Priority */
    action = GTK_TOGGLE_ACTION (ACTION (PRIORITIZE_MESSAGE));
    if (gtk_toggle_action_get_active (action))
        camel_medium_add_header (
            CAMEL_MEDIUM (new), "X-Priority", "1");

    if (p->mime_body) {
        plain_encoding = CAMEL_TRANSFER_ENCODING_7BIT;
        for (i = 0; p->mime_body[i]; i++) {
            if ((guchar) p->mime_body[i] > 127) {
                plain_encoding = CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE;
                break;
            }
        }
        data = g_byte_array_new ();
        g_byte_array_append (data, (const guint8 *)p->mime_body, strlen (p->mime_body));
        type = camel_content_type_decode (p->mime_type);
    } else {
        gchar *text;
        gsize length;

        data = g_byte_array_new ();
        text = gtkhtml_editor_get_text_plain (editor, &length);
        g_byte_array_append (data, (guint8 *) text, (guint) length);
        g_free (text);

        /* FIXME: we may want to do better than this... */

        type = camel_content_type_new ("text", "plain");
        if ((charset = best_charset (data, p->charset, &plain_encoding))) {
            camel_content_type_set_param (type, "charset", charset);
            iconv_charset = camel_iconv_charset_name (charset);
            g_free (charset);
        }
    }

    stream = camel_stream_mem_new_with_byte_array (data);

    /* convert the stream to the appropriate charset */
    if (iconv_charset && g_ascii_strcasecmp (iconv_charset, "UTF-8") != 0) {
        CamelStreamFilter *filter_stream;
        CamelMimeFilterCharset *filter;

        filter_stream = camel_stream_filter_new_with_stream (stream);
        camel_object_unref (stream);

        stream = (CamelStream *) filter_stream;
        filter = camel_mime_filter_charset_new_convert ("UTF-8", iconv_charset);
        camel_stream_filter_add (filter_stream, (CamelMimeFilter *) filter);
        camel_object_unref (filter);
    }

    /* construct the content object */
    plain = camel_data_wrapper_new ();
    camel_data_wrapper_construct_from_stream (plain, stream);
    camel_object_unref (stream);

    camel_data_wrapper_set_mime_type_field (plain, type);
    camel_content_type_unref (type);

    if (html_content) {
        gchar *text;
        gsize length;

        clear_current_images (composer);

        if (save_html_object_data)
            gtkhtml_editor_run_command (editor, "save-data-on");

        data = g_byte_array_new ();
        text = gtkhtml_editor_get_text_html (editor, &length);
        g_byte_array_append (data, (guint8 *) text, (guint) length);
        g_free (text);

        if (save_html_object_data)
            gtkhtml_editor_run_command (editor, "save-data-off");

        html = camel_data_wrapper_new ();

        stream = camel_stream_mem_new_with_byte_array (data);
        camel_data_wrapper_construct_from_stream (html, stream);
        camel_object_unref (stream);
        camel_data_wrapper_set_mime_type (html, "text/html; charset=utf-8");

        /* Build the multipart/alternative */
        body = camel_multipart_new ();
        camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (body),
                          "multipart/alternative");
        camel_multipart_set_boundary (body, NULL);

        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), plain);
        camel_object_unref (plain);
        camel_mime_part_set_encoding (part, plain_encoding);
        camel_multipart_add_part (body, part);
        camel_object_unref (part);

        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), html);
        camel_object_unref (html);
        camel_multipart_add_part (body, part);
        camel_object_unref (part);

        /* If there are inlined images, construct a
         * multipart/related containing the
         * multipart/alternative and the images.
         */
        if (p->current_images) {
            CamelMultipart *html_with_images;

            html_with_images = camel_multipart_new ();
            camel_data_wrapper_set_mime_type (
                CAMEL_DATA_WRAPPER (html_with_images),
                "multipart/related; type=\"multipart/alternative\"");
            camel_multipart_set_boundary (html_with_images, NULL);

            part = camel_mime_part_new ();
            camel_medium_set_content_object (CAMEL_MEDIUM (part), CAMEL_DATA_WRAPPER (body));
            camel_object_unref (body);
            camel_multipart_add_part (html_with_images, part);
            camel_object_unref (part);

            add_inlined_images (composer, html_with_images);
            clear_current_images (composer);

            current = CAMEL_DATA_WRAPPER (html_with_images);
        } else
            current = CAMEL_DATA_WRAPPER (body);
    } else
        current = plain;

    if (e_attachment_store_get_num_attachments (store) > 0) {
        CamelMultipart *multipart = camel_multipart_new ();

        if (p->is_alternative) {
            camel_data_wrapper_set_mime_type (CAMEL_DATA_WRAPPER (multipart),
                              "multipart/alternative");
        }

        /* Generate a random boundary. */
        camel_multipart_set_boundary (multipart, NULL);

        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), current);
        if (current == plain)
            camel_mime_part_set_encoding (part, plain_encoding);
        camel_object_unref (current);
        camel_multipart_add_part (multipart, part);
        camel_object_unref (part);

        e_attachment_store_add_to_multipart (
            store, multipart, p->charset);

        if (p->is_alternative) {
            for (i = camel_multipart_get_number (multipart); i > 1; i--) {
                part = camel_multipart_get_part (multipart, i - 1);
                camel_medium_remove_header (CAMEL_MEDIUM (part), "Content-Disposition");
            }
        }

        current = CAMEL_DATA_WRAPPER (multipart);
    }

    camel_exception_init (&ex);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    pgp_sign = gtk_toggle_action_get_active (action);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
    pgp_encrypt = gtk_toggle_action_get_active (action);

#if defined (HAVE_NSS)
    action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
    smime_sign = gtk_toggle_action_get_active (action);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
    smime_encrypt = gtk_toggle_action_get_active (action);
#else
    smime_sign = FALSE;
    smime_encrypt = FALSE;
#endif

    /* Setup working recipient list if we're encrypting */
    if (pgp_encrypt || smime_encrypt) {
        gint j;
        const gchar *types[] = { CAMEL_RECIPIENT_TYPE_TO, CAMEL_RECIPIENT_TYPE_CC, CAMEL_RECIPIENT_TYPE_BCC };

        recipients = g_ptr_array_new ();
        for (i = 0; i < G_N_ELEMENTS (types); i++) {
            const CamelInternetAddress *addr;
            const gchar *address;

            addr = camel_mime_message_get_recipients (new, types[i]);
            for (j=0;camel_internet_address_get (addr, j, NULL, &address); j++)
                g_ptr_array_add (recipients, g_strdup (address));

        }
    }

    if (pgp_sign || pgp_encrypt) {
        const gchar *pgp_userid;
        CamelInternetAddress *from = NULL;
        CamelCipherContext *cipher;
        EAccount *account;

        part = camel_mime_part_new ();
        camel_medium_set_content_object (CAMEL_MEDIUM (part), current);
        if (current == plain)
            camel_mime_part_set_encoding (part, plain_encoding);
        camel_object_unref (current);

        account = e_composer_header_table_get_account (table);

        if (account && account->pgp_key && *account->pgp_key) {
            pgp_userid = account->pgp_key;
        } else {
            from = e_msg_composer_get_from (composer);
            camel_internet_address_get (from, 0, NULL, &pgp_userid);
        }

        if (pgp_sign) {
            CamelMimePart *npart = camel_mime_part_new ();

            cipher = camel_gpg_context_new (session);
            if (account != NULL)
                camel_gpg_context_set_always_trust (
                    CAMEL_GPG_CONTEXT (cipher),
                    account->pgp_always_trust);
            camel_cipher_sign (
                cipher, pgp_userid, CAMEL_CIPHER_HASH_SHA1,
                part, npart, &ex);
            camel_object_unref (cipher);

            if (camel_exception_is_set (&ex)) {
                camel_object_unref (npart);
                goto exception;
            }

            camel_object_unref (part);
            part = npart;
        }

        if (pgp_encrypt) {
            CamelMimePart *npart = camel_mime_part_new ();

            /* check to see if we should encrypt to self, NB gets removed immediately after use */
            if (account && account->pgp_encrypt_to_self && pgp_userid)
                g_ptr_array_add (recipients, g_strdup (pgp_userid));

            cipher = camel_gpg_context_new (session);
            if (account != NULL)
                camel_gpg_context_set_always_trust (
                    CAMEL_GPG_CONTEXT (cipher),
                    account->pgp_always_trust);
            camel_cipher_encrypt (
                cipher, pgp_userid, recipients,
                part, npart, &ex);
            camel_object_unref (cipher);

            if (account && account->pgp_encrypt_to_self && pgp_userid)
                g_ptr_array_set_size (recipients, recipients->len - 1);

            if (camel_exception_is_set (&ex)) {
                camel_object_unref (npart);
                goto exception;
            }

            camel_object_unref (part);
            part = npart;
        }

        if (from)
            camel_object_unref (from);

        current = camel_medium_get_content_object (CAMEL_MEDIUM (part));
        camel_object_ref (current);
        camel_object_unref (part);
    }

#if defined (HAVE_NSS)
    if (smime_sign || smime_encrypt) {
        CamelInternetAddress *from = NULL;
        CamelCipherContext *cipher;

        part = camel_mime_part_new ();
        camel_medium_set_content_object ((CamelMedium *)part, current);
        if (current == plain)
            camel_mime_part_set_encoding (part, plain_encoding);
        camel_object_unref (current);

        if (smime_sign
            && (account == NULL || account->smime_sign_key == NULL || account->smime_sign_key[0] == 0)) {
            camel_exception_set (&ex, CAMEL_EXCEPTION_SYSTEM,
                         _("Cannot sign outgoing message: No signing certificate set for this account"));
            goto exception;
        }

        if (smime_encrypt
            && (account == NULL || account->smime_sign_key == NULL || account->smime_sign_key[0] == 0)) {
            camel_exception_set (&ex, CAMEL_EXCEPTION_SYSTEM,
                         _("Cannot encrypt outgoing message: No encryption certificate set for this account"));
            goto exception;
        }

        if (smime_sign) {
            CamelMimePart *npart = camel_mime_part_new ();

            cipher = camel_smime_context_new (session);

            /* if we're also encrypting, envelope-sign rather than clear-sign */
            if (smime_encrypt) {
                camel_smime_context_set_sign_mode ((CamelSMIMEContext *)cipher, CAMEL_SMIME_SIGN_ENVELOPED);
                camel_smime_context_set_encrypt_key ((CamelSMIMEContext *)cipher, TRUE, account->smime_encrypt_key);
            } else if (account && account->smime_encrypt_key && *account->smime_encrypt_key) {
                camel_smime_context_set_encrypt_key ((CamelSMIMEContext *)cipher, TRUE, account->smime_encrypt_key);
            }

            camel_cipher_sign (cipher, account->smime_sign_key, CAMEL_CIPHER_HASH_SHA1, part, npart, &ex);
            camel_object_unref (cipher);

            if (camel_exception_is_set (&ex)) {
                camel_object_unref (npart);
                goto exception;
            }

            camel_object_unref (part);
            part = npart;
        }

        if (smime_encrypt) {

            /* check to see if we should encrypt to self, NB removed after use */
            if (account->smime_encrypt_to_self)
                g_ptr_array_add (recipients, g_strdup (account->smime_encrypt_key));

            cipher = camel_smime_context_new (session);
            camel_smime_context_set_encrypt_key ((CamelSMIMEContext *)cipher, TRUE, account->smime_encrypt_key);

            camel_cipher_encrypt (cipher, NULL, recipients, part, (CamelMimePart *)new, &ex);
            camel_object_unref (cipher);

            if (camel_exception_is_set (&ex))
                goto exception;

            if (account->smime_encrypt_to_self)
                g_ptr_array_set_size (recipients, recipients->len - 1);
        }

        if (from)
            camel_object_unref (from);

        /* we replaced the message directly, we don't want to do reparenting foo */
        if (smime_encrypt) {
            camel_object_unref (part);
            goto skip_content;
        } else {
            current = camel_medium_get_content_object ((CamelMedium *)part);
            camel_object_ref (current);
            camel_object_unref (part);
        }
    }
#endif /* HAVE_NSS */

    camel_medium_set_content_object (CAMEL_MEDIUM (new), current);
    if (current == plain)
        camel_mime_part_set_encoding (CAMEL_MIME_PART (new), plain_encoding);
    camel_object_unref (current);

#if defined (HAVE_NSS)
skip_content:
#endif
    if (recipients) {
        for (i=0; i<recipients->len; i++)
            g_free (recipients->pdata[i]);
        g_ptr_array_free (recipients, TRUE);
    }

    /* Attach whether this message was written in HTML */
    camel_medium_set_header (
        CAMEL_MEDIUM (new), "X-Evolution-Format",
        html_content ? "text/html" : "text/plain");

    return new;

 exception:

    if (part != CAMEL_MIME_PART (new))
        camel_object_unref (part);

    camel_object_unref (new);

    if (ex.id != CAMEL_EXCEPTION_USER_CANCEL) {
        e_error_run ((GtkWindow *)composer, "mail-composer:no-build-message",
                camel_exception_get_description (&ex), NULL);
    }

    camel_exception_clear (&ex);

    if (recipients) {
        for (i=0; i<recipients->len; i++)
            g_free (recipients->pdata[i]);
        g_ptr_array_free (recipients, TRUE);
    }

    return NULL;
}

/* Signatures */

static gchar *
encode_signature_name (const gchar *name)
{
    const gchar *s;
    gchar *ename, *e;
    gint len = 0;

    s = name;
    while (*s) {
        len ++;
        if (*s == '"' || *s == '.' || *s == '=')
            len ++;
        s ++;
    }

    ename = g_new (gchar, len + 1);

    s = name;
    e = ename;
    while (*s) {
        if (*s == '"') {
            *e = '.';
            e ++;
            *e = '1';
            e ++;
        } else if (*s == '=') {
            *e = '.';
            e ++;
            *e = '2';
            e ++;
        } else {
            *e = *s;
            e ++;
        }
        if (*s == '.') {
            *e = '.';
            e ++;
        }
        s ++;
    }
    *e = 0;

    return ename;
}

static gchar *
decode_signature_name (const gchar *name)
{
    const gchar *s;
    gchar *dname, *d;
    gint len = 0;

    s = name;
    while (*s) {
        len ++;
        if (*s == '.') {
            s ++;
            if (!*s || !(*s == '.' || *s == '1' || *s == '2'))
                return NULL;
        }
        s ++;
    }

    dname = g_new (char, len + 1);

    s = name;
    d = dname;
    while (*s) {
        if (*s == '.') {
            s ++;
            if (!*s || !(*s == '.' || *s == '1' || *s == '2')) {
                g_free (dname);
                return NULL;
            }
            if (*s == '1')
                *d = '"';
            else if (*s == '2')
                *d = '=';
            else
                *d = '.';
        } else
            *d = *s;
        d ++;
        s ++;
    }
    *d = 0;

    return dname;
}

#define CONVERT_SPACES CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES
#define NO_SIGNATURE_TEXT   \
    "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature\" value=\"1\">-->" \
    "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature_name\" value=\"uid:Noname\">--><BR>"

static gchar *
get_signature_html (EMsgComposer *composer)
{
    EComposerHeaderTable *table;
    gchar *text = NULL, *html = NULL;
    ESignature *signature;
    gboolean format_html;

    table = e_msg_composer_get_header_table (composer);
    signature = e_composer_header_table_get_signature (table);

    if (!signature)
        return NULL;

    if (!signature->autogen) {
        if (!signature->filename)
            return NULL;

        format_html = signature->html;

        if (signature->script)
            text = e_run_signature_script (
                signature->filename);
        else
            text = e_read_signature_file (
                signature, TRUE, NULL);
    } else {
        EAccount *account;
        EAccountIdentity *id;
        gchar *organization;
        gchar *address;
        gchar *name;

        account = e_composer_header_table_get_account (table);
        if (!account)
            return NULL;

        id = account->id;
        address = id->address ? camel_text_to_html (id->address, CONVERT_SPACES, 0) : NULL;
        name = id->name ? camel_text_to_html (id->name, CONVERT_SPACES, 0) : NULL;
        organization = id->organization ? camel_text_to_html (id->organization, CONVERT_SPACES, 0) : NULL;

        text = g_strdup_printf ("-- <BR>%s%s%s%s%s%s%s%s",
                    name ? name : "",
                    (address && *address) ? " &lt;<A HREF=\"mailto:" : "",
                    address ? address : "",
                    (address && *address) ? "\">" : "",
                    address ? address : "",
                    (address && *address) ? "</A>&gt;" : "",
                    (organization && *organization) ? "<BR>" : "",
                    organization ? organization : "");
        g_free (address);
        g_free (name);
        g_free (organization);
        format_html = TRUE;
    }

    /* printf ("text: %s\n", text); */
    if (text) {
        gchar *encoded_uid = NULL;

        if (signature)
            encoded_uid = encode_signature_name (signature->uid);

        /* The signature dash convention ("-- \n") is specified in the
         * "Son of RFC 1036": http://www.chemie.fu-berlin.de/outerspace/netnews/son-of-1036.html,
         * section 4.3.2.
         */
        html = g_strdup_printf ("<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature\" value=\"1\">-->"
                    "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature_name\" value=\"uid:%s\">-->"
                    "<TABLE WIDTH=\"100%%\" CELLSPACING=\"0\" CELLPADDING=\"0\"><TR><TD><BR>"
                    "%s%s%s%s"
                    "</TD></TR></TABLE>",
                        encoded_uid ? encoded_uid : "",
                    format_html ? "" : "<PRE>\n",
                    format_html || (!strncmp ("-- \n", text, 4) || strstr (text, "\n-- \n")) ? "" : "-- \n",
                    text,
                    format_html ? "" : "</PRE>\n");
        g_free (text);
        g_free (encoded_uid);
        text = html;
    }

    return text;
}

static void
set_editor_text (EMsgComposer *composer,
                 const gchar *text,
                 gboolean set_signature)
{
    EShell *shell;
    EShellSettings *shell_settings;
    gboolean reply_signature_on_top;
    gchar *body = NULL, *html = NULL;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (text != NULL);

    shell = e_shell_get_default ();
    shell_settings = e_shell_get_shell_settings (shell);

    /*

       Keeping Signatures in the beginning of composer
       ------------------------------------------------

       Purists are gonna blast me for this.
       But there are so many people (read Outlook users) who want this.
       And Evo is an exchange-client, Outlook-replacement etc.
       So Here it goes :(

       -- Sankar

     */

    reply_signature_on_top = e_shell_settings_get_boolean (
        shell_settings, "composer-top-signature");

    if (set_signature && reply_signature_on_top) {
        gchar *tmp = NULL;
        tmp = get_signature_html (composer);
        if (tmp) {
            /* Minimizing the damage. Make it just a part of the body instead of a signature */
            html = strstr (tmp, "-- \n");
            if (html) {
                /* That two consecutive - symbols followed by a space */
                *(html+1) = ' ';
                body = g_strdup_printf ("</br>%s</br>%s", tmp, text);
            } else {
                /* HTML Signature. Make it as part of body */
                body = g_strdup_printf ("</br>%s</br>%s", tmp, text);
            }
            g_free (tmp);
        } else {
            /* No signature set */
            body = g_strdup_printf ("<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature\" value=\"1\">-->"
                    "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"signature_name\" value=\"uid:Noname\">-->"
                    "<TABLE WIDTH=\"100%%\" CELLSPACING=\"0\" CELLPADDING=\"0\"><TR><TD> </TD></TR></TABLE>%s", text);
        }
    } else {
        /* no marker => to the bottom */
        body = g_strdup_printf ("%s<BR>", text);
    }

    gtkhtml_editor_set_text_html (GTKHTML_EDITOR (composer), body, -1);

    if (set_signature)
        e_msg_composer_show_sig_file (composer);
}

/* Commands.  */

static EMsgComposer *
autosave_load_draft (const gchar *filename)
{
    CamelStream *stream;
    CamelMimeMessage *msg;
    EMsgComposer *composer;

    g_return_val_if_fail (filename != NULL, NULL);

    g_warning ("autosave load filename = \"%s\"", filename);

    if (!(stream = camel_stream_fs_new_with_name (filename, O_RDONLY, 0)))
        return NULL;

    msg = camel_mime_message_new ();
    camel_data_wrapper_construct_from_stream (CAMEL_DATA_WRAPPER (msg), stream);
    camel_object_unref (stream);

    composer = e_msg_composer_new_with_message (msg);
    if (composer) {
        if (e_composer_autosave_snapshot (composer))
            g_unlink (filename);

        gtk_widget_show (GTK_WIDGET (composer));
    }

    return composer;
}

/* Miscellaneous callbacks.  */

static void
attachment_store_changed_cb (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;

    /* Mark the editor as changed so it prompts about unsaved
     * changes on close. */
    editor = GTKHTML_EDITOR (composer);
    gtkhtml_editor_set_changed (editor, TRUE);
}

static void
msg_composer_subject_changed_cb (EMsgComposer *composer)
{
    EComposerHeaderTable *table;
    const gchar *subject;

    table = e_msg_composer_get_header_table (composer);
    subject = e_composer_header_table_get_subject (table);

    if (subject == NULL || *subject == '\0')
        subject = _("Compose Message");

    gtk_window_set_title (GTK_WINDOW (composer), subject);
}

enum {
    UPDATE_AUTO_CC,
    UPDATE_AUTO_BCC,
};

static void
update_auto_recipients (EComposerHeaderTable *table,
                        gint mode,
                        const gchar *auto_addrs)
{
    EDestination *dest, **destv = NULL;
    CamelInternetAddress *iaddr;
    GList *list = NULL;
    guint length;
    gint i;

    if (auto_addrs) {
        iaddr = camel_internet_address_new ();
        if (camel_address_decode (CAMEL_ADDRESS (iaddr), auto_addrs) != -1) {
            for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                const gchar *name, *addr;

                if (!camel_internet_address_get (iaddr, i, &name, &addr))
                    continue;

                dest = e_destination_new ();
                e_destination_set_auto_recipient (dest, TRUE);

                if (name)
                    e_destination_set_name (dest, name);

                if (addr)
                    e_destination_set_email (dest, addr);

                list = g_list_prepend (list, dest);
            }
        }

        camel_object_unref (iaddr);
    }

    switch (mode) {
    case UPDATE_AUTO_CC:
        destv = e_composer_header_table_get_destinations_cc (table);
        break;
    case UPDATE_AUTO_BCC:
        destv = e_composer_header_table_get_destinations_bcc (table);
        break;
    default:
        g_return_if_reached ();
    }

    if (destv) {
        for (i = 0; destv[i]; i++) {
            if (!e_destination_is_auto_recipient (destv[i])) {
                dest = e_destination_copy (destv[i]);
                list = g_list_prepend (list, dest);
            }
        }

        e_destination_freev (destv);
    }

    list = g_list_reverse (list);

    length = g_list_length (list);
    destv = destination_list_to_vector_sized (list, length);

    g_list_free (list);

    switch (mode) {
    case UPDATE_AUTO_CC:
        e_composer_header_table_set_destinations_cc (table, destv);
        break;
    case UPDATE_AUTO_BCC:
        e_composer_header_table_set_destinations_bcc (table, destv);
        break;
    default:
        g_return_if_reached ();
    }

    e_destination_freev (destv);
}

static void
msg_composer_account_changed_cb (EMsgComposer *composer)
{
    EMsgComposerPrivate *p = composer->priv;
    EComposerHeaderTable *table;
    GtkToggleAction *action;
    ESignature *signature;
    EAccount *account;
    gboolean active;
    gboolean sensitive;
    const gchar *cc_addrs = NULL;
    const gchar *bcc_addrs = NULL;
    const gchar *uid;

    table = e_msg_composer_get_header_table (composer);
    account = e_composer_header_table_get_account (table);

    if (account == NULL)
        goto exit;

    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    active = account->pgp_always_sign &&
        (!account->pgp_no_imip_sign || p->mime_type == NULL ||
        g_ascii_strncasecmp (p->mime_type, "text/calendar", 13) != 0);
    gtk_toggle_action_set_active (action, active);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
    active = account->smime_sign_default;
    gtk_toggle_action_set_active (action, active);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
    active = account->smime_encrypt_default;
    gtk_toggle_action_set_active (action, active);

    if (account->always_cc)
        cc_addrs = account->cc_addrs;
    if (account->always_bcc)
        bcc_addrs = account->bcc_addrs;

    uid = account->id->sig_uid;
    signature = uid ? e_get_signature_by_uid (uid) : NULL;
    e_composer_header_table_set_signature (table, signature);

    /* XXX This should be done more generically.  The composer
     *     should not know about particular account types. */
    sensitive =
        (strstr (account->transport->url, "exchange") != NULL) ||
        (strstr (account->transport->url, "groupwise") != NULL);
    gtk_action_set_sensitive (ACTION (SEND_OPTIONS), sensitive);

exit:
    update_auto_recipients (table, UPDATE_AUTO_CC, cc_addrs);
    update_auto_recipients (table, UPDATE_AUTO_BCC, bcc_addrs);

    e_msg_composer_show_sig_file (composer);
}

static void
msg_composer_account_list_changed_cb (EMsgComposer *composer)
{
    EComposerHeaderTable *table;
    EAccountList *account_list;
    EIterator *iterator;
    gboolean visible = FALSE;

    /* Determine whether to show the "send-options" action by
     * examining the account list for account types that support it.
     *
     * XXX I'd prefer a more general way of doing this.  The composer
     *     should not know about particular account types.  Perhaps
     *     add a "supports advanced send options" flag to EAccount. */

    table = E_COMPOSER_HEADER_TABLE (composer->priv->header_table);
    account_list = e_composer_header_table_get_account_list (table);
    iterator = e_list_get_iterator (E_LIST (account_list));

    while (!visible && e_iterator_is_valid (iterator)) {
        EAccount *account;
        const gchar *url;

        /* XXX EIterator misuses const. */
        account = (EAccount *) e_iterator_get (iterator);
        e_iterator_next (iterator);

        if (!account->enabled)
            continue;

        url = account->transport->url;
        visible |= (strstr (url, "exchange") != NULL);
        visible |= (strstr (url, "groupwise") != NULL);
    }

    gtk_action_set_visible (ACTION (SEND_OPTIONS), visible);
    g_object_unref (iterator);
}

struct _drop_data {
    EMsgComposer *composer;

    GdkDragContext *context;
    /* Only selection->data and selection->length are valid */
    GtkSelectionData *selection;

    guint32 action;
    guint info;
    guint time;
};

static void
msg_composer_notify_header_cb (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;

    editor = GTKHTML_EDITOR (composer);
    gtkhtml_editor_set_changed (editor, TRUE);
}

static GObject *
msg_composer_constructor (GType type,
                          guint n_construct_properties,
                          GObjectConstructParam *construct_properties)
{
    EShell *shell;
    EShellSettings *shell_settings;
    GObject *object;
    EMsgComposer *composer;
    GtkToggleAction *action;
    GArray *array;
    gboolean active;
    guint binding_id;

    /* Chain up to parent's constructor() method. */
    object = G_OBJECT_CLASS (parent_class)->constructor (
        type, n_construct_properties, construct_properties);

    composer = E_MSG_COMPOSER (object);
    array = composer->priv->gconf_bridge_binding_ids;

    shell = e_shell_get_default ();
    shell_settings = e_shell_get_shell_settings (shell);

    /* Restore Persistent State */

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_CURRENT_FOLDER_KEY,
        G_OBJECT (composer), "current-folder");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_VIEW_BCC_KEY,
        G_OBJECT (ACTION (VIEW_BCC)), "active");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_VIEW_CC_KEY,
        G_OBJECT (ACTION (VIEW_CC)), "active");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_VIEW_FROM_KEY,
        G_OBJECT (ACTION (VIEW_FROM)), "active");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_VIEW_POST_TO_KEY,
        G_OBJECT (ACTION (VIEW_POST_TO)), "active");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_property (
        gconf_bridge_get (),
        COMPOSER_GCONF_VIEW_REPLY_TO_KEY,
        G_OBJECT (ACTION (VIEW_REPLY_TO)), "active");
    g_array_append_val (array, binding_id);

    binding_id = gconf_bridge_bind_window (
        gconf_bridge_get (),
        COMPOSER_GCONF_WINDOW_PREFIX,
        GTK_WINDOW (composer), TRUE, FALSE);
    g_array_append_val (array, binding_id);

    /* Honor User Preferences */

    active = e_shell_settings_get_boolean (
        shell_settings, "composer-format-html");
    gtkhtml_editor_set_html_mode (GTKHTML_EDITOR (composer), active);

    action = GTK_TOGGLE_ACTION (ACTION (REQUEST_READ_RECEIPT));
    active = e_shell_settings_get_boolean (
        shell_settings, "composer-request-receipt");
    gtk_toggle_action_set_active (action, active);

    e_shell_watch_window (shell, GTK_WINDOW (object));

    return object;
}

static void
msg_composer_dispose (GObject *object)
{
    EMsgComposer *composer = E_MSG_COMPOSER (object);
    gboolean delete_file;

    /* If the application is exiting, keep the autosave file so we can
     * restore it later.  Otherwise we're just closing this composer
     * window, and the CLOSE action has already handled any unsaved
     * changes, so we can safely delete the autosave file. */
    delete_file = !composer->priv->application_exiting;
    e_composer_autosave_unregister (composer, delete_file);

    e_composer_private_dispose (composer);

    /* Chain up to parent's dispose() method. */
    G_OBJECT_CLASS (parent_class)->dispose (object);
}

static void
msg_composer_finalize (GObject *object)
{
    EMsgComposer *composer = E_MSG_COMPOSER (object);

    e_composer_private_finalize (composer);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (parent_class)->finalize (object);
}

static void
msg_composer_destroy (GtkObject *object)
{
    EMsgComposer *composer = E_MSG_COMPOSER (object);

    all_composers = g_slist_remove (all_composers, object);

    if (composer->priv->address_dialog != NULL) {
        gtk_widget_destroy (composer->priv->address_dialog);
        composer->priv->address_dialog = NULL;
    }

    /* Chain up to parent's destroy() method. */
    GTK_OBJECT_CLASS (parent_class)->destroy (object);
}

static void
msg_composer_map (GtkWidget *widget)
{
    EComposerHeaderTable *table;
    GtkWidget *input_widget;
    const gchar *text;

    /* Chain up to parent's map() method. */
    GTK_WIDGET_CLASS (parent_class)->map (widget);

    table = e_msg_composer_get_header_table (E_MSG_COMPOSER (widget));

    /* If the 'To' field is empty, focus it. */
    input_widget =
        e_composer_header_table_get_header (
        table, E_COMPOSER_HEADER_TO)->input_widget;
    text = gtk_entry_get_text (GTK_ENTRY (input_widget));
    if (text == NULL || *text == '\0') {
        gtk_widget_grab_focus (input_widget);
        return;
    }

    /* If not, check the 'Subject' field. */
    input_widget =
        e_composer_header_table_get_header (
        table, E_COMPOSER_HEADER_SUBJECT)->input_widget;
    text = gtk_entry_get_text (GTK_ENTRY (input_widget));
    if (text == NULL || *text == '\0') {
        gtk_widget_grab_focus (input_widget);
        return;
    }

    /* Jump to the editor as a last resort. */
    gtkhtml_editor_run_command (GTKHTML_EDITOR (widget), "grab-focus");
}

static gint
msg_composer_delete_event (GtkWidget *widget,
                       GdkEventAny *event)
{
    /* This is needed for the ACTION macro. */
    EMsgComposer *composer = E_MSG_COMPOSER (widget);

    gtk_action_activate (ACTION (CLOSE));

    return TRUE;
}

static gboolean
msg_composer_key_press_event (GtkWidget *widget,
                              GdkEventKey *event)
{
    EMsgComposer *composer = E_MSG_COMPOSER (widget);
    GtkWidget *input_widget;
    GtkhtmlEditor *editor;
    GtkHTML *html;

    editor = GTKHTML_EDITOR (widget);
    html = gtkhtml_editor_get_html (editor);

    input_widget =
        e_composer_header_table_get_header (
        e_msg_composer_get_header_table (composer),
        E_COMPOSER_HEADER_SUBJECT)->input_widget;

#ifdef HAVE_XFREE
    if (event->keyval == XF86XK_Send) {
        g_signal_emit (G_OBJECT (composer), signals[SEND], 0);
        return TRUE;
    }
#endif /* HAVE_XFREE */

    if (event->keyval == GDK_Escape) {
        gtk_action_activate (ACTION (CLOSE));
        return TRUE;
    }

    if (event->keyval == GDK_Tab && gtk_widget_is_focus (input_widget)) {
        gtkhtml_editor_run_command (editor, "grab-focus");
        return TRUE;
    }

    if (event->keyval == GDK_ISO_Left_Tab &&
        gtk_widget_is_focus (GTK_WIDGET (html))) {
        gtk_widget_grab_focus (input_widget);
        return TRUE;
    }

    /* Chain up to parent's key_press_event() method. */
    return GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event);
}

static gboolean
msg_composer_drag_motion (GtkWidget *widget,
                          GdkDragContext *context,
                          gint x,
                          gint y,
                          guint time)
{
    EMsgComposer *composer;
    EAttachmentView *view;

    /* Widget may be EMsgComposer or GtkHTML. */
    composer = E_MSG_COMPOSER (gtk_widget_get_toplevel (widget));
    view = e_msg_composer_get_attachment_view (composer);

    return e_attachment_view_drag_motion (view, context, x, y, time);
}

static void
msg_composer_drag_data_received (GtkWidget *widget,
                                 GdkDragContext *context,
                                 gint x,
                                 gint y,
                                 GtkSelectionData *selection,
                                 guint info,
                                 guint time)
{
    EMsgComposer *composer;
    EAttachmentView *view;

    /* Widget may be EMsgComposer or GtkHTML. */
    composer = E_MSG_COMPOSER (gtk_widget_get_toplevel (widget));
    view = e_msg_composer_get_attachment_view (composer);

    /* Forward the data to the attachment view.  Note that calling
     * e_attachment_view_drag_data_received() will not work because
     * that function only handles the case where all the other drag
     * handlers have failed. */
    e_attachment_paned_drag_data_received (
        E_ATTACHMENT_PANED (view),
        context, x, y, selection, info, time);
}

static void
msg_composer_cut_clipboard (GtkhtmlEditor *editor)
{
    EMsgComposer *composer;
    GtkWidget *parent;
    GtkWidget *widget;

    composer = E_MSG_COMPOSER (editor);
    widget = gtk_window_get_focus (GTK_WINDOW (editor));
    parent = gtk_widget_get_parent (widget);

    if (parent == composer->priv->header_table) {
        gtk_editable_cut_clipboard (GTK_EDITABLE (widget));
        return;
    }

    /* Chain up to parent's cut_clipboard() method. */
    GTKHTML_EDITOR_CLASS (parent_class)->cut_clipboard (editor);
}

static void
msg_composer_copy_clipboard (GtkhtmlEditor *editor)
{
    EMsgComposer *composer;
    GtkWidget *parent;
    GtkWidget *widget;

    composer = E_MSG_COMPOSER (editor);
    widget = gtk_window_get_focus (GTK_WINDOW (editor));
    parent = gtk_widget_get_parent (widget);

    if (parent == composer->priv->header_table) {
        gtk_editable_copy_clipboard (GTK_EDITABLE (widget));
        return;
    }

    /* Chain up to parent's copy_clipboard() method. */
    GTKHTML_EDITOR_CLASS (parent_class)->copy_clipboard (editor);
}

static void
msg_composer_paste_clipboard (GtkhtmlEditor *editor)
{
    EMsgComposer *composer;
    EAttachmentView *view;
    EAttachmentStore *store;
    GtkClipboard *clipboard;
    GdkPixbuf *pixbuf;
    GtkWidget *parent;
    GtkWidget *widget;
    gchar *filename;
    gchar *uri;
    GError *error = NULL;

    composer = E_MSG_COMPOSER (editor);
    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);

    widget = gtk_window_get_focus (GTK_WINDOW (editor));
    parent = gtk_widget_get_parent (widget);

    if (parent == composer->priv->header_table) {
        gtk_editable_paste_clipboard (GTK_EDITABLE (widget));
        return;
    }

    clipboard = gtk_widget_get_clipboard (widget, GDK_SELECTION_CLIPBOARD);

    /* Assume the clipboard has an image.  The return
     * value will be NULL if we assumed wrong. */
    pixbuf = gtk_clipboard_wait_for_image (clipboard);
    if (!GDK_IS_PIXBUF (pixbuf))
        goto chainup;

    /* Reserve a temporary file. */
    filename = e_mktemp (NULL);
    if (filename == NULL) {
        g_warning ("%s", g_strerror (errno));
        g_object_unref (pixbuf);
        g_error_free (error);
        return;
    }

    /* Save the pixbuf as a temporary file in image/png format. */
    if (!gdk_pixbuf_save (pixbuf, filename, "png", &error, NULL)) {
        g_warning ("%s", error->message);
        g_object_unref (pixbuf);
        g_error_free (error);
        g_free (filename);
        return;
    }

    /* Convert the filename to a URI. */
    uri = g_filename_to_uri (filename, NULL, &error);
    if (error != NULL) {
        g_warning ("%s", error->message);
        g_object_unref (pixbuf);
        g_error_free (error);
        g_free (filename);
        return;
    }

    if (gtkhtml_editor_get_html_mode (editor))
        gtkhtml_editor_insert_image (editor, uri);
    else {
        EAttachment *attachment;

        attachment = e_attachment_new_for_uri (uri);
        e_attachment_store_add_attachment (store, attachment);
        e_attachment_load_async (
            attachment, (GAsyncReadyCallback)
            e_attachment_load_handle_error, composer);
        g_object_unref (attachment);
    }

    g_object_unref (pixbuf);
    g_free (filename);
    g_free (uri);

    return;

chainup:
    /* Chain up to parent's paste_clipboard() method. */
    GTKHTML_EDITOR_CLASS (parent_class)->paste_clipboard (editor);
}

static void
msg_composer_select_all (GtkhtmlEditor *editor)
{
    EMsgComposer *composer;
    GtkWidget *parent;
    GtkWidget *widget;

    composer = E_MSG_COMPOSER (editor);
    widget = gtk_window_get_focus (GTK_WINDOW (editor));
    parent = gtk_widget_get_parent (widget);

    if (parent == composer->priv->header_table) {
        gtk_editable_set_position (GTK_EDITABLE (widget), -1);
        gtk_editable_select_region (GTK_EDITABLE (widget), 0, -1);
    } else
        /* Chain up to the parent's select_all() method. */
        GTKHTML_EDITOR_CLASS (parent_class)->select_all (editor);
}

static void
msg_composer_command_before (GtkhtmlEditor *editor,
                             const gchar *command)
{
    EMsgComposer *composer;
    const gchar *data;

    composer = E_MSG_COMPOSER (editor);

    if (strcmp (command, "insert-paragraph") != 0)
        return;

    if (composer->priv->in_signature_insert)
        return;

    data = gtkhtml_editor_get_paragraph_data (editor, "orig");
    if (data != NULL && *data == '1') {
        gtkhtml_editor_run_command (editor, "text-default-color");
        gtkhtml_editor_run_command (editor, "italic-off");
        return;
    };

    data = gtkhtml_editor_get_paragraph_data (editor, "signature");
    if (data != NULL && *data == '1') {
        gtkhtml_editor_run_command (editor, "text-default-color");
        gtkhtml_editor_run_command (editor, "italic-off");
    }
}

static void
msg_composer_command_after (GtkhtmlEditor *editor,
                            const gchar *command)
{
    EMsgComposer *composer;
    const gchar *data;

    composer = E_MSG_COMPOSER (editor);

    if (strcmp (command, "insert-paragraph") != 0)
        return;

    if (composer->priv->in_signature_insert)
        return;

    gtkhtml_editor_run_command (editor, "italic-off");

    data = gtkhtml_editor_get_paragraph_data (editor, "orig");
    if (data != NULL && *data == '1')
        e_msg_composer_reply_indent (composer);
    gtkhtml_editor_set_paragraph_data (editor, "orig", "0");

    data = gtkhtml_editor_get_paragraph_data (editor, "signature");
    if (data == NULL || *data != '1')
        return;

    /* Clear the signature. */
    if (gtkhtml_editor_is_paragraph_empty (editor))
        gtkhtml_editor_set_paragraph_data (editor, "signature" ,"0");

    else if (gtkhtml_editor_is_previous_paragraph_empty (editor) &&
        gtkhtml_editor_run_command (editor, "cursor-backward")) {

        gtkhtml_editor_set_paragraph_data (editor, "signature", "0");
        gtkhtml_editor_run_command (editor, "cursor-forward");
    }

    gtkhtml_editor_run_command (editor, "text-default-color");
    gtkhtml_editor_run_command (editor, "italic-off");
}

static gchar *
msg_composer_image_uri (GtkhtmlEditor *editor,
                        const gchar *uri)
{
    EMsgComposer *composer;
    GHashTable *hash_table;
    CamelMimePart *part;
    const gchar *cid;

    composer = E_MSG_COMPOSER (editor);

    hash_table = composer->priv->inline_images_by_url;
    part = g_hash_table_lookup (hash_table, uri);

    if (part == NULL && g_str_has_prefix (uri, "file:"))
        part = e_msg_composer_add_inline_image_from_file (
            composer, uri + 5);

    if (part == NULL && g_str_has_prefix (uri, "cid:")) {
        hash_table = composer->priv->inline_images;
        part = g_hash_table_lookup (hash_table, uri);
    }

    if (part == NULL)
        return NULL;

    composer->priv->current_images =
        g_list_prepend (composer->priv->current_images, part);

    cid = camel_mime_part_get_content_id (part);
    if (cid == NULL)
        return NULL;

    return g_strconcat ("cid:", cid, NULL);
}

static void
msg_composer_link_clicked (GtkhtmlEditor *editor,
                           const gchar *uri)
{
    if (uri == NULL || *uri == '\0')
        return;

    if (g_ascii_strncasecmp (uri, "mailto:", 7) == 0)
        return;

    if (g_ascii_strncasecmp (uri, "thismessage:", 12) == 0)
        return;

    if (g_ascii_strncasecmp (uri, "cid:", 4) == 0)
        return;

    e_show_uri (GTK_WINDOW (editor), uri);
}

static void
msg_composer_object_deleted (GtkhtmlEditor *editor)
{
    const gchar *data;

    if (!gtkhtml_editor_is_paragraph_empty (editor))
        return;

    data = gtkhtml_editor_get_paragraph_data (editor, "orig");
    if (data != NULL && *data == '1') {
        gtkhtml_editor_set_paragraph_data (editor, "orig", "0");
        gtkhtml_editor_run_command (editor, "indent-zero");
        gtkhtml_editor_run_command (editor, "style-normal");
        gtkhtml_editor_run_command (editor, "text-default-color");
        gtkhtml_editor_run_command (editor, "italic-off");
        gtkhtml_editor_run_command (editor, "insert-paragraph");
        gtkhtml_editor_run_command (editor, "delete-back");
    }

    data = gtkhtml_editor_get_paragraph_data (editor, "signature");
    if (data != NULL && *data == '1')
        gtkhtml_editor_set_paragraph_data (editor, "signature", "0");
}

static void
msg_composer_uri_requested (GtkhtmlEditor *editor,
                            const gchar *uri,
                            GtkHTMLStream *stream)
{
    EMsgComposer *composer;
    GHashTable *hash_table;
    GByteArray *array;
    CamelDataWrapper *wrapper;
    CamelStream *camel_stream;
    CamelMimePart *part;
    GtkHTML *html;

    /* XXX It's unfortunate we have to expose GtkHTML structs here.
     *     Maybe we could rework this to use a GOutputStream. */

    composer = E_MSG_COMPOSER (editor);
    html = gtkhtml_editor_get_html (editor);

    hash_table = composer->priv->inline_images_by_url;
    part = g_hash_table_lookup (hash_table, uri);

    if (part == NULL) {
        hash_table = composer->priv->inline_images;
        part = g_hash_table_lookup (hash_table, uri);
    }

    if (part == NULL) {
        gtk_html_end (html, stream, GTK_HTML_STREAM_ERROR);
        return;
    }

    array = g_byte_array_new ();
    camel_stream = camel_stream_mem_new_with_byte_array (array);
    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (part));
    camel_data_wrapper_decode_to_stream (wrapper, camel_stream);

    gtk_html_write (
        gtkhtml_editor_get_html (editor), stream,
        (gchar *) array->data, array->len);

    camel_object_unref (camel_stream);

    gtk_html_end (html, stream, GTK_HTML_STREAM_OK);
}

static void
msg_composer_class_init (EMsgComposerClass *class)
{
    GObjectClass *object_class;
    GtkObjectClass *gtk_object_class;
    GtkWidgetClass *widget_class;
    GtkhtmlEditorClass *editor_class;

    parent_class = g_type_class_peek_parent (class);
    g_type_class_add_private (class, sizeof (EMsgComposerPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->constructor = msg_composer_constructor;
    object_class->dispose = msg_composer_dispose;
    object_class->finalize = msg_composer_finalize;

    gtk_object_class = GTK_OBJECT_CLASS (class);
    gtk_object_class->destroy = msg_composer_destroy;

    widget_class = GTK_WIDGET_CLASS (class);
    widget_class->map = msg_composer_map;
    widget_class->delete_event = msg_composer_delete_event;
    widget_class->key_press_event = msg_composer_key_press_event;
    widget_class->drag_motion = msg_composer_drag_motion;
    widget_class->drag_data_received = msg_composer_drag_data_received;

    editor_class = GTKHTML_EDITOR_CLASS (class);
    editor_class->cut_clipboard = msg_composer_cut_clipboard;
    editor_class->copy_clipboard = msg_composer_copy_clipboard;
    editor_class->paste_clipboard = msg_composer_paste_clipboard;
    editor_class->select_all = msg_composer_select_all;
    editor_class->command_before = msg_composer_command_before;
    editor_class->command_after = msg_composer_command_after;
    editor_class->image_uri = msg_composer_image_uri;
    editor_class->link_clicked = msg_composer_link_clicked;
    editor_class->object_deleted = msg_composer_object_deleted;
    editor_class->uri_requested = msg_composer_uri_requested;

    signals[SEND] = g_signal_new (
        "send",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST,
        0, NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[SAVE_DRAFT] = g_signal_new (
        "save-draft",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST,
        0, NULL, NULL,
        g_cclosure_marshal_VOID__VOID,
        G_TYPE_NONE, 0);

    signals[PRINT] = g_signal_new (
        "print",
        G_OBJECT_CLASS_TYPE (class),
        G_SIGNAL_RUN_LAST,
        0, NULL, NULL,
        g_cclosure_marshal_VOID__ENUM,
        G_TYPE_NONE, 1,
        GTK_TYPE_PRINT_OPERATION_ACTION);
}

static void
msg_composer_init (EMsgComposer *composer)
{
    EAttachmentView *view;
    EAttachmentStore *store;
    EComposerHeaderTable *table;
    GdkDragAction drag_actions;
    GtkTargetList *target_list;
    GtkTargetEntry *targets;
    GtkUIManager *ui_manager;
    GtkhtmlEditor *editor;
    GtkHTML *html;
    const gchar *id;
    gint n_targets;

    composer->priv = E_MSG_COMPOSER_GET_PRIVATE (composer);

    e_composer_private_init (composer);

    editor = GTKHTML_EDITOR (composer);
    html = gtkhtml_editor_get_html (editor);
    ui_manager = gtkhtml_editor_get_ui_manager (editor);
    view = e_msg_composer_get_attachment_view (composer);
    all_composers = g_slist_prepend (all_composers, composer);
    table = E_COMPOSER_HEADER_TABLE (composer->priv->header_table);

    gtk_window_set_title (GTK_WINDOW (composer), _("Compose Message"));
    gtk_window_set_icon_name (GTK_WINDOW (composer), "mail-message-new");

    /* Drag-and-Drop Support */

    target_list = e_attachment_view_get_target_list (view);
    drag_actions = e_attachment_view_get_drag_actions (view);

    targets = gtk_target_table_new_from_list (target_list, &n_targets);

    gtk_drag_dest_set (
        GTK_WIDGET (composer), GTK_DEST_DEFAULT_ALL,
        targets, n_targets, drag_actions);

    g_signal_connect (
        html, "drag-data-received",
        G_CALLBACK (msg_composer_drag_data_received), NULL);

    gtk_target_table_free (targets, n_targets);

    /* Configure Headers */

    e_composer_header_table_set_account_list (
        table, e_get_account_list ());
    e_composer_header_table_set_signature_list (
        table, e_get_signature_list ());

    g_signal_connect_swapped (
        table, "notify::account",
        G_CALLBACK (msg_composer_account_changed_cb), composer);
    g_signal_connect_swapped (
        table, "notify::account-list",
        G_CALLBACK (msg_composer_account_list_changed_cb), composer);
    g_signal_connect_swapped (
        table, "notify::destinations-bcc",
        G_CALLBACK (msg_composer_notify_header_cb), composer);
    g_signal_connect_swapped (
        table, "notify::destinations-cc",
        G_CALLBACK (msg_composer_notify_header_cb), composer);
    g_signal_connect_swapped (
        table, "notify::destinations-to",
        G_CALLBACK (msg_composer_notify_header_cb), composer);
    g_signal_connect_swapped (
        table, "notify::reply-to",
        G_CALLBACK (msg_composer_notify_header_cb), composer);
    g_signal_connect_swapped (
        table, "notify::signature",
        G_CALLBACK (e_msg_composer_show_sig_file), composer);
    g_signal_connect_swapped (
        table, "notify::subject",
        G_CALLBACK (msg_composer_subject_changed_cb), composer);
    g_signal_connect_swapped (
        table, "notify::subject",
        G_CALLBACK (msg_composer_notify_header_cb), composer);

    msg_composer_account_changed_cb (composer);
    msg_composer_account_list_changed_cb (composer);

    /* Attachments */

    store = e_attachment_view_get_store (view);

    g_signal_connect_swapped (
        store, "row-deleted",
        G_CALLBACK (attachment_store_changed_cb), composer);

    g_signal_connect_swapped (
        store, "row-inserted",
        G_CALLBACK (attachment_store_changed_cb), composer);

    e_composer_autosave_register (composer);

    /* Initialization may have tripped the "changed" state. */
    gtkhtml_editor_set_changed (editor, FALSE);

    id = "org.gnome.evolution.composer";
    e_plugin_ui_register_manager (ui_manager, id, composer);
    e_plugin_ui_enable_manager (ui_manager, id);
}

GType
e_msg_composer_get_type (void)
{
    static GType type = 0;

    if (G_UNLIKELY (type == 0)) {
        static const GTypeInfo type_info = {
            sizeof (EMsgComposerClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) msg_composer_class_init,
            (GClassFinalizeFunc) NULL,
            NULL,  /* class_data */
            sizeof (EMsgComposer),
            0,     /* n_preallocs */
            (GInstanceInitFunc) msg_composer_init,
            NULL   /* value_table */
        };

        type = g_type_register_static (
            GTKHTML_TYPE_EDITOR, "EMsgComposer", &type_info, 0);
    }

    return type;
}

/* Callbacks.  */

static EMsgComposer *
create_composer (gint visible_mask)
{
    EMsgComposer *composer;
    EComposerHeaderTable *table;
    GtkToggleAction *action;
    gboolean active;

    composer = g_object_new (E_TYPE_MSG_COMPOSER, NULL);
    table = E_COMPOSER_HEADER_TABLE (composer->priv->header_table);

    /* Configure View Menu */

    /* If we're mailing, you cannot disable "To". */
    action = GTK_TOGGLE_ACTION (ACTION (VIEW_TO));
    active = visible_mask & E_MSG_COMPOSER_VISIBLE_TO;
    gtk_action_set_sensitive (ACTION (VIEW_TO), active);
    gtk_toggle_action_set_active (action, active);

    /* Ditto for "Post-To". */
    action = GTK_TOGGLE_ACTION (ACTION (VIEW_POST_TO));
    active = visible_mask & E_MSG_COMPOSER_VISIBLE_POSTTO;
    gtk_action_set_sensitive (ACTION (VIEW_POST_TO), active);
    gtk_toggle_action_set_active (action, active);

    /* Disable "Cc" if we're posting. */
    if (!(visible_mask & E_MSG_COMPOSER_VISIBLE_CC)) {
        action = GTK_TOGGLE_ACTION (ACTION (VIEW_CC));
        gtk_toggle_action_set_active (action, FALSE);
    }

    /* Disable "Bcc" if we're posting. */
    if (!(visible_mask & E_MSG_COMPOSER_VISIBLE_BCC)) {
        action = GTK_TOGGLE_ACTION (ACTION (VIEW_BCC));
        gtk_toggle_action_set_active (action, FALSE);
    }

    action = GTK_TOGGLE_ACTION (ACTION (VIEW_SUBJECT));
    gtk_toggle_action_set_active (action, TRUE);

    return composer;
}

/**
 * e_msg_composer_new_with_type:
 * @type: the type of composer to create
 *
 * Create a new message composer widget. The type can be
 * E_MSG_COMPOSER_MAIL, E_MSG_COMPOSER_POST or E_MSG_COMPOSER_MAIL_POST.
 *
 * Returns: A pointer to the newly created widget
 **/

EMsgComposer *
e_msg_composer_new_with_type (gint type)
{
    EMsgComposer *composer;
    gint visible_mask;

    switch (type) {
        case E_MSG_COMPOSER_MAIL:
            visible_mask = E_MSG_COMPOSER_VISIBLE_MASK_MAIL;
            break;

        case E_MSG_COMPOSER_POST:
            visible_mask = E_MSG_COMPOSER_VISIBLE_MASK_POST;
            break;

        default:
            visible_mask =
                E_MSG_COMPOSER_VISIBLE_MASK_MAIL |
                E_MSG_COMPOSER_VISIBLE_MASK_POST;
            break;
    }

    composer = create_composer (visible_mask);

    set_editor_text (composer, "", TRUE);

    return composer;
}

/**
 * e_msg_composer_new:
 *
 * Create a new message composer widget.
 *
 * Returns: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new (void)
{
    return e_msg_composer_new_with_type (E_MSG_COMPOSER_MAIL);
}

static gboolean
is_special_header (const gchar *hdr_name)
{
    /* Note: a header is a "special header" if it has any meaning:
       1. it's not a X-* header or
       2. it's an X-Evolution* header
    */
    if (g_ascii_strncasecmp (hdr_name, "X-", 2))
        return TRUE;

    if (!g_ascii_strncasecmp (hdr_name, "X-Evolution", 11))
        return TRUE;

    /* we can keep all other X-* headers */

    return FALSE;
}

static void
e_msg_composer_set_pending_body (EMsgComposer *composer,
                                 gchar *text,
                                 gssize length)
{
    g_object_set_data_full (
        G_OBJECT (composer), "body:text",
        text, (GDestroyNotify) g_free);

    g_object_set_data (
        G_OBJECT (composer), "body:length",
        GSIZE_TO_POINTER (length));
}

static void
e_msg_composer_flush_pending_body (EMsgComposer *composer)
{
    const gchar *body;
    gpointer data;
    gssize length;

    body = g_object_get_data (G_OBJECT (composer), "body:text");
    data = g_object_get_data (G_OBJECT (composer), "body:length");
    length = GPOINTER_TO_SIZE (data);

    if (body != NULL)
        set_editor_text (composer, body, FALSE);

    g_object_set_data (G_OBJECT (composer), "body:text", NULL);
}

static void
add_attachments_handle_mime_part (EMsgComposer *composer,
                                  CamelMimePart *mime_part,
                  gboolean just_inlines,
                                  gboolean related,
                                  gint depth)
{
    CamelContentType *content_type;
    CamelDataWrapper *wrapper;

    if (!mime_part)
        return;

    content_type = camel_mime_part_get_content_type (mime_part);
    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));

    if (CAMEL_IS_MULTIPART (wrapper)) {
        /* another layer of multipartness... */
        add_attachments_from_multipart (
            composer, (CamelMultipart *) wrapper,
            just_inlines, depth + 1);
    } else if (just_inlines) {
        if (camel_mime_part_get_content_id (mime_part) ||
            camel_mime_part_get_content_location (mime_part))
            e_msg_composer_add_inline_image_from_mime_part (
                composer, mime_part);
    } else if (related && camel_content_type_is (content_type, "image", "*")) {
        e_msg_composer_add_inline_image_from_mime_part (composer, mime_part);
    } else if (camel_content_type_is (content_type, "text", "*") && camel_mime_part_get_filename (mime_part) == NULL) {
        /* do nothing if this is a text/anything without filename, otherwise attach it too */
    } else {
        e_msg_composer_attach (composer, mime_part);
    }
}

static void
add_attachments_from_multipart (EMsgComposer *composer,
                                CamelMultipart *multipart,
                gboolean just_inlines,
                                gint depth)
{
    /* find appropriate message attachments to add to the composer */
    CamelMimePart *mime_part;
    gboolean related;
    gint i, nparts;

    related = camel_content_type_is (
        CAMEL_DATA_WRAPPER (multipart)->mime_type,
        "multipart", "related");

    if (CAMEL_IS_MULTIPART_SIGNED (multipart)) {
        mime_part = camel_multipart_get_part (
            multipart, CAMEL_MULTIPART_SIGNED_CONTENT);
        add_attachments_handle_mime_part (
            composer, mime_part, just_inlines, related, depth);
    } else if (CAMEL_IS_MULTIPART_ENCRYPTED (multipart)) {
        /* XXX What should we do in this case? */
    } else {
        nparts = camel_multipart_get_number (multipart);

        for (i = 0; i < nparts; i++) {
            mime_part = camel_multipart_get_part (multipart, i);
            add_attachments_handle_mime_part (
                composer, mime_part, just_inlines,
                related, depth);
        }
    }
}

/**
 * e_msg_composer_add_message_attachments:
 * @composer: the composer to add the attachments to.
 * @message: the source message to copy the attachments from.
 * @just_inlines: whether to attach all attachments or just add
 * inline images.
 *
 * Walk through all the mime parts in @message and add them to the composer
 * specified in @composer.
 */
void
e_msg_composer_add_message_attachments (EMsgComposer *composer,
                                        CamelMimeMessage *message,
                    gboolean just_inlines)
{
    CamelDataWrapper *wrapper;

    wrapper = camel_medium_get_content_object (CAMEL_MEDIUM (message));
    if (!CAMEL_IS_MULTIPART (wrapper))
        return;

    add_attachments_from_multipart (
        composer, (CamelMultipart *) wrapper, just_inlines, 0);
}

static void
handle_multipart_signed (EMsgComposer *composer,
                         CamelMultipart *multipart,
                         gint depth)
{
    CamelContentType *content_type;
    CamelDataWrapper *content;
    CamelMimePart *mime_part;
    GtkToggleAction *action;

    /* FIXME: make sure this isn't an s/mime signed part?? */
    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    gtk_toggle_action_set_active (action, TRUE);

    mime_part = camel_multipart_get_part (
        multipart, CAMEL_MULTIPART_SIGNED_CONTENT);

    if (mime_part == NULL)
        return;

    content_type = camel_mime_part_get_content_type (mime_part);

    content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));

    if (CAMEL_IS_MULTIPART (content)) {
        multipart = CAMEL_MULTIPART (content);

        /* Note: depth is preserved here because we're not
           counting multipart/signed as a multipart, instead
           we want to treat the content part as our mime part
           here. */

        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (composer, multipart, depth);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (composer, mime_part, depth);
        } else if (camel_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (composer, multipart, depth);
        } else {
            /* there must be attachments... */
            handle_multipart (composer, multipart, depth);
        }
    } else if (camel_content_type_is (content_type, "text", "*")) {
        gchar *html;
        gssize length;

        html = em_utils_part_to_html (mime_part, &length, NULL);
        e_msg_composer_set_pending_body (composer, html, length);
    } else {
        e_msg_composer_attach (composer, mime_part);
    }
}

static void
handle_multipart_encrypted (EMsgComposer *composer,
                            CamelMimePart *multipart,
                            gint depth)
{
    CamelContentType *content_type;
    CamelCipherContext *cipher;
    CamelDataWrapper *content;
    CamelMimePart *mime_part;
    CamelSession *session;
    CamelException ex;
    CamelCipherValidity *valid;
    GtkToggleAction *action;

    /* FIXME: make sure this is a PGP/MIME encrypted part?? */
    action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
    gtk_toggle_action_set_active (action, TRUE);

    camel_exception_init (&ex);
    session = e_msg_composer_get_session (composer);
    cipher = camel_gpg_context_new (session);
    mime_part = camel_mime_part_new ();
    valid = camel_cipher_decrypt (cipher, multipart, mime_part, &ex);
    camel_object_unref (cipher);
    camel_exception_clear (&ex);
    if (valid == NULL)
        return;
    camel_cipher_validity_free (valid);

    content_type = camel_mime_part_get_content_type (mime_part);

    content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));

    if (CAMEL_IS_MULTIPART (content)) {
        CamelMultipart *content_multipart = CAMEL_MULTIPART (content);

        /* Note: depth is preserved here because we're not
           counting multipart/encrypted as a multipart, instead
           we want to treat the content part as our mime part
           here. */

        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (composer, content_multipart, depth);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (composer, mime_part, depth);
        } else if (camel_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (composer, content_multipart, depth);
        } else {
            /* there must be attachments... */
            handle_multipart (composer, content_multipart, depth);
        }
    } else if (camel_content_type_is (content_type, "text", "*")) {
        gchar *html;
        gssize length;

        html = em_utils_part_to_html (mime_part, &length, NULL);
        e_msg_composer_set_pending_body (composer, html, length);
    } else {
        e_msg_composer_attach (composer, mime_part);
    }

    camel_object_unref (mime_part);
}

static void
handle_multipart_alternative (EMsgComposer *composer,
                              CamelMultipart *multipart,
                              gint depth)
{
    /* Find the text/html part and set the composer body to it's contents */
    CamelMimePart *text_part = NULL;
    gint i, nparts;

    nparts = camel_multipart_get_number (multipart);

    for (i = 0; i < nparts; i++) {
        CamelContentType *content_type;
        CamelDataWrapper *content;
        CamelMimePart *mime_part;

        mime_part = camel_multipart_get_part (multipart, i);

        if (!mime_part)
            continue;

        content_type = camel_mime_part_get_content_type (mime_part);
        content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));

        if (CAMEL_IS_MULTIPART (content)) {
            CamelMultipart *mp;

            mp = CAMEL_MULTIPART (content);

            if (CAMEL_IS_MULTIPART_SIGNED (content)) {
                /* handle the signed content and configure the composer to sign outgoing messages */
                handle_multipart_signed (composer, mp, depth + 1);
            } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
                /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
                handle_multipart_encrypted (composer, mime_part, depth + 1);
            } else {
                /* depth doesn't matter so long as we don't pass 0 */
                handle_multipart (composer, mp, depth + 1);
            }
        } else if (camel_content_type_is (content_type, "text", "html")) {
            /* text/html is preferable, so once we find it we're done... */
            text_part = mime_part;
            break;
        } else if (camel_content_type_is (content_type, "text", "*")) {
            /* anyt text part not text/html is second rate so the first
               text part we find isn't necessarily the one we'll use. */
            if (!text_part)
                text_part = mime_part;
        } else {
            e_msg_composer_attach (composer, mime_part);
        }
    }

    if (text_part) {
        gchar *html;
        gssize length;

        html = em_utils_part_to_html (text_part, &length, NULL);
        e_msg_composer_set_pending_body (composer, html, length);
    }
}

static void
handle_multipart (EMsgComposer *composer,
                  CamelMultipart *multipart,
                  gint depth)
{
    gint i, nparts;

    nparts = camel_multipart_get_number (multipart);

    for (i = 0; i < nparts; i++) {
        CamelContentType *content_type;
        CamelDataWrapper *content;
        CamelMimePart *mime_part;

        mime_part = camel_multipart_get_part (multipart, i);

        if (!mime_part)
            continue;

        content_type = camel_mime_part_get_content_type (mime_part);
        content = camel_medium_get_content_object (CAMEL_MEDIUM (mime_part));

        if (CAMEL_IS_MULTIPART (content)) {
            CamelMultipart *mp;

            mp = CAMEL_MULTIPART (content);

            if (CAMEL_IS_MULTIPART_SIGNED (content)) {
                /* handle the signed content and configure the composer to sign outgoing messages */
                handle_multipart_signed (composer, mp, depth + 1);
            } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
                /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
                handle_multipart_encrypted (composer, mime_part, depth + 1);
            } else if (camel_content_type_is (content_type, "multipart", "alternative")) {
                handle_multipart_alternative (composer, mp, depth + 1);
            } else {
                /* depth doesn't matter so long as we don't pass 0 */
                handle_multipart (composer, mp, depth + 1);
            }
        } else if (depth == 0 && i == 0) {
            gchar *html;
            gssize length;

            /* Since the first part is not multipart/alternative,
             * this must be the body. */
            html = em_utils_part_to_html (mime_part, &length, NULL);
            e_msg_composer_set_pending_body (composer, html, length);
        } else if (camel_mime_part_get_content_id (mime_part) ||
               camel_mime_part_get_content_location (mime_part)) {
            /* special in-line attachment */
            e_msg_composer_add_inline_image_from_mime_part (composer, mime_part);
        } else {
            /* normal attachment */
            e_msg_composer_attach (composer, mime_part);
        }
    }
}

static void
set_signature_gui (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;
    EComposerHeaderTable *table;
    ESignature *signature = NULL;
    const gchar *data;
    gchar *decoded;

    editor = GTKHTML_EDITOR (composer);
    table = e_msg_composer_get_header_table (composer);

    if (!gtkhtml_editor_search_by_data (editor, 1, "ClueFlow", "signature", "1"))
        return;

    data = gtkhtml_editor_get_paragraph_data (editor, "signature_name");
    if (g_str_has_prefix (data, "uid:")) {
        decoded = decode_signature_name (data + 4);
        signature = e_get_signature_by_uid (decoded);
        g_free (decoded);
    } else if (g_str_has_prefix (data, "name:")) {
        decoded = decode_signature_name (data + 5);
        signature = e_get_signature_by_name (decoded);
        g_free (decoded);
    }

    e_composer_header_table_set_signature (table, signature);
}

/**
 * e_msg_composer_new_with_message:
 * @message: The message to use as the source
 *
 * Create a new message composer widget.
 *
 * Note: Designed to work only for messages constructed using Evolution.
 *
 * Returns: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new_with_message (CamelMimeMessage *message)
{
    const CamelInternetAddress *to, *cc, *bcc;
    GList *To = NULL, *Cc = NULL, *Bcc = NULL, *postto = NULL;
    const gchar *format, *subject;
    EDestination **Tov, **Ccv, **Bccv;
    GHashTable *auto_cc, *auto_bcc;
    CamelContentType *content_type;
    struct _camel_header_raw *headers;
    CamelDataWrapper *content;
    EAccount *account = NULL;
    gchar *account_name;
    EMsgComposer *composer;
    EComposerHeaderTable *table;
    GtkToggleAction *action;
    struct _camel_header_raw *xev;
    gint len, i;
    EMsgComposerPrivate *p;

    for (headers = CAMEL_MIME_PART (message)->headers;headers;headers = headers->next) {
        if (!strcmp (headers->name, "X-Evolution-PostTo"))
            postto = g_list_append (postto, g_strstrip (g_strdup (headers->value)));
    }

    if (postto != NULL)
        composer = create_composer (E_MSG_COMPOSER_VISIBLE_MASK_POST);
    else
        composer = create_composer (E_MSG_COMPOSER_VISIBLE_MASK_MAIL);
    p = composer->priv;

    if (!composer) {
        g_list_foreach (postto, (GFunc)g_free, NULL);
        g_list_free (postto);
        return NULL;
    }

    table = e_msg_composer_get_header_table (composer);

    if (postto) {
        e_composer_header_table_set_post_to_list (table, postto);
        g_list_foreach (postto, (GFunc)g_free, NULL);
        g_list_free (postto);
        postto = NULL;
    }

    /* Restore the Account preference */
    account_name = (char *) camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-Account");
    if (account_name) {
        account_name = g_strdup (account_name);
        g_strstrip (account_name);

        account = e_get_account_by_uid (account_name);
        if (account == NULL)
            /* XXX Backwards compatibility */
            account = e_get_account_by_name (account_name);

        if (account != NULL) {
            g_free (account_name);
            account_name = g_strdup (account->name);
        }
    }

    if (postto == NULL) {
        auto_cc = g_hash_table_new_full (
            camel_strcase_hash, camel_strcase_equal,
            (GDestroyNotify) g_free,
            (GDestroyNotify) NULL);

        auto_bcc = g_hash_table_new_full (
            camel_strcase_hash, camel_strcase_equal,
            (GDestroyNotify) g_free,
            (GDestroyNotify) NULL);

        if (account) {
            CamelInternetAddress *iaddr;

            /* hash our auto-recipients for this account */
            if (account->always_cc) {
                iaddr = camel_internet_address_new ();
                if (camel_address_decode (CAMEL_ADDRESS (iaddr), account->cc_addrs) != -1) {
                    for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                        const gchar *name, *addr;

                        if (!camel_internet_address_get (iaddr, i, &name, &addr))
                            continue;

                        g_hash_table_insert (auto_cc, g_strdup (addr), GINT_TO_POINTER (TRUE));
                    }
                }
                camel_object_unref (iaddr);
            }

            if (account->always_bcc) {
                iaddr = camel_internet_address_new ();
                if (camel_address_decode (CAMEL_ADDRESS (iaddr), account->bcc_addrs) != -1) {
                    for (i = 0; i < camel_address_length (CAMEL_ADDRESS (iaddr)); i++) {
                        const gchar *name, *addr;

                        if (!camel_internet_address_get (iaddr, i, &name, &addr))
                            continue;

                        g_hash_table_insert (auto_bcc, g_strdup (addr), GINT_TO_POINTER (TRUE));
                    }
                }
                camel_object_unref (iaddr);
            }
        }

        to = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_TO);
        cc = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_CC);
        bcc = camel_mime_message_get_recipients (message, CAMEL_RECIPIENT_TYPE_BCC);

        len = CAMEL_ADDRESS (to)->addresses->len;
        for (i = 0; i < len; i++) {
            const gchar *name, *addr;

            if (camel_internet_address_get (to, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);
                To = g_list_append (To, dest);
            }
        }
        Tov = destination_list_to_vector (To);
        g_list_free (To);

        len = CAMEL_ADDRESS (cc)->addresses->len;
        for (i = 0; i < len; i++) {
            const gchar *name, *addr;

            if (camel_internet_address_get (cc, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);

                if (g_hash_table_lookup (auto_cc, addr))
                    e_destination_set_auto_recipient (dest, TRUE);

                Cc = g_list_append (Cc, dest);
            }
        }

        Ccv = destination_list_to_vector (Cc);
        g_hash_table_destroy (auto_cc);
        g_list_free (Cc);

        len = CAMEL_ADDRESS (bcc)->addresses->len;
        for (i = 0; i < len; i++) {
            const gchar *name, *addr;

            if (camel_internet_address_get (bcc, i, &name, &addr)) {
                EDestination *dest = e_destination_new ();
                e_destination_set_name (dest, name);
                e_destination_set_email (dest, addr);

                if (g_hash_table_lookup (auto_bcc, addr))
                    e_destination_set_auto_recipient (dest, TRUE);

                Bcc = g_list_append (Bcc, dest);
            }
        }

        Bccv = destination_list_to_vector (Bcc);
        g_hash_table_destroy (auto_bcc);
        g_list_free (Bcc);
    } else {
        Tov = NULL;
        Ccv = NULL;
        Bccv = NULL;
    }

    subject = camel_mime_message_get_subject (message);

    e_composer_header_table_set_account_name (table, account_name);
    e_composer_header_table_set_destinations_to (table, Tov);
    e_composer_header_table_set_destinations_cc (table, Ccv);
    e_composer_header_table_set_destinations_bcc (table, Bccv);
    e_composer_header_table_set_subject (table, subject);

    g_free (account_name);

    e_destination_freev (Tov);
    e_destination_freev (Ccv);
    e_destination_freev (Bccv);

    /* Restore the format editing preference */
    format = camel_medium_get_header (CAMEL_MEDIUM (message), "X-Evolution-Format");
    if (format) {
        gchar **flags;

        while (*format && camel_mime_is_lwsp (*format))
            format++;

        flags = g_strsplit (format, ", ", 0);
        for (i=0;flags[i];i++) {
            printf ("restoring draft flag '%s'\n", flags[i]);

            if (g_ascii_strcasecmp (flags[i], "text/html") == 0)
                gtkhtml_editor_set_html_mode (
                    GTKHTML_EDITOR (composer), TRUE);
            else if (g_ascii_strcasecmp (flags[i], "text/plain") == 0)
                gtkhtml_editor_set_html_mode (
                    GTKHTML_EDITOR (composer), FALSE);
            else if (g_ascii_strcasecmp (flags[i], "pgp-sign") == 0) {
                action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
                gtk_toggle_action_set_active (action, TRUE);
            } else if (g_ascii_strcasecmp (flags[i], "pgp-encrypt") == 0) {
                action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
                gtk_toggle_action_set_active (action, TRUE);
            } else if (g_ascii_strcasecmp (flags[i], "smime-sign") == 0) {
                action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
                gtk_toggle_action_set_active (action, TRUE);
            } else if (g_ascii_strcasecmp (flags[i], "smime-encrypt") == 0) {
                action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
                gtk_toggle_action_set_active (action, TRUE);
            }
        }
        g_strfreev (flags);
    }

    /* Remove any other X-Evolution-* headers that may have been set */
    xev = mail_tool_remove_xevolution_headers (message);
    camel_header_raw_clear (&xev);
    
    /* Check for receipt request */
    if (camel_medium_get_header (CAMEL_MEDIUM (message), "Disposition-Notification-To")) {
        action = GTK_TOGGLE_ACTION (ACTION (REQUEST_READ_RECEIPT));
        gtk_toggle_action_set_active (action, TRUE);
    }
    
    /* Check for mail priority */
    if (camel_medium_get_header (CAMEL_MEDIUM (message), "X-Priority")) {
        action = GTK_TOGGLE_ACTION (ACTION (PRIORITIZE_MESSAGE));
        gtk_toggle_action_set_active (action, TRUE);
    }

    /* set extra headers */
    headers = CAMEL_MIME_PART (message)->headers;
    while (headers) {
        if (!is_special_header (headers->name) ||
            !g_ascii_strcasecmp (headers->name, "References") ||
            !g_ascii_strcasecmp (headers->name, "In-Reply-To")) {
            g_ptr_array_add (p->extra_hdr_names, g_strdup (headers->name));
            g_ptr_array_add (p->extra_hdr_values, g_strdup (headers->value));
        }

        headers = headers->next;
    }

    /* Restore the attachments and body text */
    content = camel_medium_get_content_object (CAMEL_MEDIUM (message));
    if (CAMEL_IS_MULTIPART (content)) {
        CamelMultipart *multipart;

        multipart = CAMEL_MULTIPART (content);
        content_type = camel_mime_part_get_content_type (CAMEL_MIME_PART (message));

        if (CAMEL_IS_MULTIPART_SIGNED (content)) {
            /* handle the signed content and configure the composer to sign outgoing messages */
            handle_multipart_signed (composer, multipart, 0);
        } else if (CAMEL_IS_MULTIPART_ENCRYPTED (content)) {
            /* decrypt the encrypted content and configure the composer to encrypt outgoing messages */
            handle_multipart_encrypted (composer, CAMEL_MIME_PART (message), 0);
        } else if (camel_content_type_is (content_type, "multipart", "alternative")) {
            /* this contains the text/plain and text/html versions of the message body */
            handle_multipart_alternative (composer, multipart, 0);
        } else {
            /* there must be attachments... */
            handle_multipart (composer, multipart, 0);
        }
    } else {
        gchar *html;
        gssize length;

        html = em_utils_part_to_html ((CamelMimePart *)message, &length, NULL);
        e_msg_composer_set_pending_body (composer, html, length);
    }

    /* We wait until now to set the body text because we need to
     * ensure that the attachment bar has all the attachments before
     * we request them. */
    e_msg_composer_flush_pending_body (composer);

    set_signature_gui (composer);

    return composer;
}

static void
disable_editor (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;
    GtkAction *action;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    editor = GTKHTML_EDITOR (composer);

    gtkhtml_editor_run_command (editor, "editable-off");

    action = GTKHTML_EDITOR_ACTION_EDIT_MENU (composer);
    gtk_action_set_sensitive (action, FALSE);

    action = GTKHTML_EDITOR_ACTION_FORMAT_MENU (composer);
    gtk_action_set_sensitive (action, FALSE);

    action = GTKHTML_EDITOR_ACTION_INSERT_MENU (composer);
    gtk_action_set_sensitive (action, FALSE);

    gtk_widget_set_sensitive (composer->priv->attachment_paned, FALSE);
}

/**
 * e_msg_composer_new_redirect:
 * @message: The message to use as the source
 *
 * Create a new message composer widget.
 *
 * Returns: A pointer to the newly created widget
 **/
EMsgComposer *
e_msg_composer_new_redirect (CamelMimeMessage *message,
                             const gchar *resent_from)
{
    EMsgComposer *composer;
    EComposerHeaderTable *table;
    const gchar *subject;

    g_return_val_if_fail (CAMEL_IS_MIME_MESSAGE (message), NULL);

    composer = e_msg_composer_new_with_message (message);
    table = e_msg_composer_get_header_table (composer);

    subject = camel_mime_message_get_subject (message);

    composer->priv->redirect = message;
    camel_object_ref (message);

    e_composer_header_table_set_account_name (table, resent_from);
    e_composer_header_table_set_subject (table, subject);

    disable_editor (composer);

    return composer;
}

/**
 * e_msg_composer_get_session:
 * @composer: an #EMsgComposer
 *
 * Returns the mail module's global #CamelSession instance.  Calling
 * this function will load the mail module if it isn't already loaded.
 *
 * Returns: the mail module's #CamelSession
 **/
CamelSession *
e_msg_composer_get_session (EMsgComposer *composer)
{
    EShell *shell;
    EShellSettings *shell_settings;
    CamelSession *session;

    /* FIXME EMsgComposer should own a reference to EShell. */

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    shell = e_shell_get_default ();
    shell_settings = e_shell_get_shell_settings (shell);

    session = e_shell_settings_get_pointer (shell_settings, "mail-session");
    g_return_val_if_fail (CAMEL_IS_SESSION (session), NULL);

    return session;
}

/**
 * e_msg_composer_send:
 * @composer: an #EMsgComposer
 *
 * Send the message in @composer.
 **/
void
e_msg_composer_send (EMsgComposer *composer)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    g_signal_emit (composer, signals[SEND], 0);
}

/**
 * e_msg_composer_save_draft:
 * @composer: an #EMsgComposer
 *
 * Save the message in @composer to the selected account's Drafts folder.
 **/
void
e_msg_composer_save_draft (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    editor = GTKHTML_EDITOR (composer);

    g_signal_emit (composer, signals[SAVE_DRAFT], 0);

    /* XXX This should be elsewhere. */
    gtkhtml_editor_set_changed (editor, FALSE);
    e_composer_autosave_set_saved (composer, FALSE);
}

/**
 * e_msg_composer_print:
 * @composer: an #EMsgComposer
 * @action: the print action to start
 *
 * Print the message in @composer.
 **/
void
e_msg_composer_print (EMsgComposer *composer,
                      GtkPrintOperationAction action)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    g_signal_emit (composer, signals[PRINT], 0, action);
}

static GList *
add_recipients (GList *list, const gchar *recips)
{
    CamelInternetAddress *cia;
    const gchar *name, *addr;
    gint num, i;

    cia = camel_internet_address_new ();
    num = camel_address_decode (CAMEL_ADDRESS (cia), recips);

    for (i = 0; i < num; i++) {
        if (camel_internet_address_get (cia, i, &name, &addr)) {
            EDestination *dest = e_destination_new ();
            e_destination_set_name (dest, name);
            e_destination_set_email (dest, addr);

            list = g_list_append (list, dest);
        }
    }

    return list;
}

static void
handle_mailto (EMsgComposer *composer, const gchar *mailto)
{
    EAttachmentView *view;
    EAttachmentStore *store;
    EComposerHeaderTable *table;
    GList *to = NULL, *cc = NULL, *bcc = NULL;
    EDestination **tov, **ccv, **bccv;
    gchar *subject = NULL, *body = NULL;
    gchar *header, *content, *buf;
    gsize nread, nwritten;
    const gchar *p;
    gint len, clen;

    table = e_msg_composer_get_header_table (composer);
    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);

    buf = g_strdup (mailto);

    /* Parse recipients (everything after ':' until '?' or eos). */
    p = buf + 7;
    len = strcspn (p, "?");
    if (len) {
        content = g_strndup (p, len);
        camel_url_decode (content);
        to = add_recipients (to, content);
        g_free (content);
    }

    p += len;
    if (*p == '?') {
        p++;

        while (*p) {
            len = strcspn (p, "=&");

            /* If it's malformed, give up. */
            if (p[len] != '=')
                break;

            header = (char *) p;
            header[len] = '\0';
            p += len + 1;

            clen = strcspn (p, "&");

            content = g_strndup (p, clen);

            if (!g_ascii_strcasecmp (header, "to")) {
                camel_url_decode (content);
                to = add_recipients (to, content);
            } else if (!g_ascii_strcasecmp (header, "cc")) {
                camel_url_decode (content);
                cc = add_recipients (cc, content);
            } else if (!g_ascii_strcasecmp (header, "bcc")) {
                camel_url_decode (content);
                bcc = add_recipients (bcc, content);
            } else if (!g_ascii_strcasecmp (header, "subject")) {
                g_free (subject);
                camel_url_decode (content);
                if (g_utf8_validate (content, -1, NULL)) {
                    subject = content;
                    content = NULL;
                } else {
                    subject = g_locale_to_utf8 (content, clen, &nread,
                                    &nwritten, NULL);
                    if (subject) {
                        subject = g_realloc (subject, nwritten + 1);
                        subject[nwritten] = '\0';
                    }
                }
            } else if (!g_ascii_strcasecmp (header, "body")) {
                g_free (body);
                camel_url_decode (content);
                if (g_utf8_validate (content, -1, NULL)) {
                    body = content;
                    content = NULL;
                } else {
                    body = g_locale_to_utf8 (content, clen, &nread,
                                 &nwritten, NULL);
                    if (body) {
                        body = g_realloc (body, nwritten + 1);
                        body[nwritten] = '\0';
                    }
                }
            } else if (!g_ascii_strcasecmp (header, "attach") ||
                   !g_ascii_strcasecmp (header, "attachment")) {
                EAttachment *attachment;

                camel_url_decode (content);
                if (g_ascii_strncasecmp (content, "file:", 5) == 0)
                    attachment = e_attachment_new_for_uri (content);
                else
                    attachment = e_attachment_new_for_path (content);
                e_attachment_store_add_attachment (store, attachment);
                e_attachment_load_async (
                    attachment, (GAsyncReadyCallback)
                    e_attachment_load_handle_error, composer);
                g_object_unref (attachment);
            } else if (!g_ascii_strcasecmp (header, "from")) {
                /* Ignore */
            } else if (!g_ascii_strcasecmp (header, "reply-to")) {
                /* ignore */
            } else {
                /* add an arbitrary header? */
                camel_url_decode (content);
                e_msg_composer_add_header (composer, header, content);
            }

            g_free (content);

            p += clen;
            if (*p == '&') {
                p++;
                if (!g_ascii_strncasecmp (p, "amp;", 4))
                    p += 4;
            }
        }
    }

    g_free (buf);

    tov  = destination_list_to_vector (to);
    ccv  = destination_list_to_vector (cc);
    bccv = destination_list_to_vector (bcc);

    g_list_free (to);
    g_list_free (cc);
    g_list_free (bcc);

    e_composer_header_table_set_destinations_to (table, tov);
    e_composer_header_table_set_destinations_cc (table, ccv);
    e_composer_header_table_set_destinations_bcc (table, bccv);

    e_destination_freev (tov);
    e_destination_freev (ccv);
    e_destination_freev (bccv);

    e_composer_header_table_set_subject (table, subject);
    g_free (subject);

    if (body) {
        gchar *htmlbody;

        htmlbody = camel_text_to_html (body, CAMEL_MIME_FILTER_TOHTML_PRE, 0);
        set_editor_text (composer, htmlbody, FALSE);
        g_free (htmlbody);
    }
}

/**
 * e_msg_composer_new_from_url:
 * @url: a mailto URL
 *
 * Create a new message composer widget, and fill in fields as
 * defined by the provided URL.
 **/
EMsgComposer *
e_msg_composer_new_from_url (const gchar *url)
{
    EMsgComposer *composer;

    g_return_val_if_fail (g_ascii_strncasecmp (url, "mailto:", 7) == 0, NULL);

    composer = e_msg_composer_new ();
    if (!composer)
        return NULL;

    handle_mailto (composer, url);

    return composer;
}

/**
 * e_msg_composer_set_body_text:
 * @composer: a composer object
 * @text: the HTML text to initialize the editor with
 *
 * Loads the given HTML text into the editor.
 **/
void
e_msg_composer_set_body_text (EMsgComposer *composer,
                              const gchar *text,
                              gssize len)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (text != NULL);

    set_editor_text (composer, text, TRUE);
}

/**
 * e_msg_composer_set_body:
 * @composer: a composer object
 * @body: the data to initialize the composer with
 * @mime_type: the MIME type of data
 *
 * Loads the given data ginto the composer as the message body.
 * This function should only be used by the CORBA composer factory.
 **/
void
e_msg_composer_set_body (EMsgComposer *composer,
                         const gchar *body,
             const gchar *mime_type)
{
    EMsgComposerPrivate *p = composer->priv;
    EComposerHeaderTable *table;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    table = e_msg_composer_get_header_table (composer);

    set_editor_text (composer, _("<b>(The composer contains a non-text message body, which cannot be edited.)</b>"), FALSE);
    gtkhtml_editor_set_html_mode (GTKHTML_EDITOR (composer), FALSE);
    disable_editor (composer);

    g_free (p->mime_body);
    p->mime_body = g_strdup (body);
    g_free (p->mime_type);
    p->mime_type = g_strdup (mime_type);

    if (g_ascii_strncasecmp (p->mime_type, "text/calendar", 13) == 0) {
        EAccount *account;

        account = e_composer_header_table_get_account (table);
        if (account && account->pgp_no_imip_sign) {
            GtkToggleAction *action;

            action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
            gtk_toggle_action_set_active (action, FALSE);
        }
    }
}

/**
 * e_msg_composer_add_header:
 * @composer: a composer object
 * @name: the header name
 * @value: the header value
 *
 * Adds a header with @name and @value to the message. This header
 * may not be displayed by the composer, but will be included in
 * the message it outputs.
 **/
void
e_msg_composer_add_header (EMsgComposer *composer,
                           const gchar *name,
               const gchar *value)
{
    EMsgComposerPrivate *p = composer->priv;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (name != NULL);
    g_return_if_fail (value != NULL);

    g_ptr_array_add (p->extra_hdr_names, g_strdup (name));
    g_ptr_array_add (p->extra_hdr_values, g_strdup (value));
}

/**
 * e_msg_composer_modify_header :
 * @composer : a composer object
 * @name: the header name
 * @change_value: the header value to put in place of the previous
 *                value
 *
 * Searches for a header with name=@name ,if found it removes
 * that header and adds a new header with the @name and @change_value .
 * If not found then it creates a new header with @name and @change_value .
 **/
void
e_msg_composer_modify_header (EMsgComposer *composer,
                              const gchar *name,
                  const gchar *change_value)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (name != NULL);
    g_return_if_fail (change_value != NULL);

    e_msg_composer_remove_header (composer, name);
    e_msg_composer_add_header (composer, name, change_value);
}

/**
 * e_msg_composer_modify_header :
 * @composer : a composer object
 * @name: the header name
 *
 * Searches for the header and if found it removes it .
 **/
void
e_msg_composer_remove_header (EMsgComposer *composer,
                              const gchar *name)
{
    EMsgComposerPrivate *p;
    gint i;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (name != NULL);

    p = composer->priv;

    for (i = 0; i < p->extra_hdr_names->len; i++) {
        if (strcmp (p->extra_hdr_names->pdata[i], name) == 0) {
            g_ptr_array_remove_index (p->extra_hdr_names, i);
            g_ptr_array_remove_index (p->extra_hdr_values, i);
        }
    }
}

/**
 * e_msg_composer_attach:
 * @composer: a composer object
 * @mime_part: the #CamelMimePart to attach
 *
 * Attaches @attachment to the message being composed in the composer.
 **/
void
e_msg_composer_attach (EMsgComposer *composer,
                       CamelMimePart *mime_part)
{
    EAttachmentView *view;
    EAttachmentStore *store;
    EAttachment *attachment;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));
    g_return_if_fail (CAMEL_IS_MIME_PART (mime_part));

    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);

    attachment = e_attachment_new ();
    e_attachment_set_mime_part (attachment, mime_part);
    e_attachment_store_add_attachment (store, attachment);
    e_attachment_load_async (
        attachment, (GAsyncReadyCallback)
        e_attachment_load_handle_error, composer);
    g_object_unref (attachment);
}

/**
 * e_msg_composer_add_inline_image_from_file:
 * @composer: a composer object
 * @filename: the name of the file containing the image
 *
 * This reads in the image in @filename and adds it to @composer
 * as an inline image, to be wrapped in a multipart/related.
 *
 * Returns: the newly-created CamelMimePart (which must be reffed
 * if the caller wants to keep its own reference), or %NULL on error.
 **/
CamelMimePart *
e_msg_composer_add_inline_image_from_file (EMsgComposer *composer,
                       const gchar *filename)
{
    gchar *mime_type, *cid, *url, *name, *dec_file_name;
    CamelStream *stream;
    CamelDataWrapper *wrapper;
    CamelMimePart *part;
    EMsgComposerPrivate *p = composer->priv;

    dec_file_name = g_strdup (filename);
    camel_url_decode (dec_file_name);

    if (!g_file_test (dec_file_name, G_FILE_TEST_IS_REGULAR))
        return NULL;

    stream = camel_stream_fs_new_with_name (dec_file_name, O_RDONLY, 0);
    if (!stream)
        return NULL;

    wrapper = camel_data_wrapper_new ();
    camel_data_wrapper_construct_from_stream (wrapper, stream);
    camel_object_unref (CAMEL_OBJECT (stream));

    mime_type = e_util_guess_mime_type (dec_file_name, TRUE);
    if (mime_type == NULL)
        mime_type = g_strdup ("application/octet-stream");
    camel_data_wrapper_set_mime_type (wrapper, mime_type);
    g_free (mime_type);

    part = camel_mime_part_new ();
    camel_medium_set_content_object (CAMEL_MEDIUM (part), wrapper);
    camel_object_unref (wrapper);

    cid = camel_header_msgid_generate ();
    camel_mime_part_set_content_id (part, cid);
    name = g_path_get_basename (dec_file_name);
    camel_mime_part_set_filename (part, name);
    g_free (name);
    camel_mime_part_set_encoding (part, CAMEL_TRANSFER_ENCODING_BASE64);

    url = g_strdup_printf ("file:%s", dec_file_name);
    g_hash_table_insert (p->inline_images_by_url, url, part);

    url = g_strdup_printf ("cid:%s", cid);
    g_hash_table_insert (p->inline_images, url, part);
    g_free (cid);

    g_free (dec_file_name);

    return part;
}

/**
 * e_msg_composer_add_inline_image_from_mime_part:
 * @composer: a composer object
 * @part: a CamelMimePart containing image data
 *
 * This adds the mime part @part to @composer as an inline image, to
 * be wrapped in a multipart/related.
 **/
void
e_msg_composer_add_inline_image_from_mime_part (EMsgComposer  *composer,
                        CamelMimePart *part)
{
    gchar *url;
    const gchar *location, *cid;
    EMsgComposerPrivate *p = composer->priv;

    cid = camel_mime_part_get_content_id (part);
    if (!cid) {
        camel_mime_part_set_content_id (part, NULL);
        cid = camel_mime_part_get_content_id (part);
    }

    url = g_strdup_printf ("cid:%s", cid);
    g_hash_table_insert (p->inline_images, url, part);
    camel_object_ref (part);

    location = camel_mime_part_get_content_location (part);
    if (location != NULL)
        g_hash_table_insert (
            p->inline_images_by_url,
            g_strdup (location), part);
}

/**
 * e_msg_composer_get_message:
 * @composer: A message composer widget
 *
 * Retrieve the message edited by the user as a CamelMimeMessage.  The
 * CamelMimeMessage object is created on the fly; subsequent calls to this
 * function will always create new objects from scratch.
 *
 * Returns: A pointer to the new CamelMimeMessage object
 **/
CamelMimeMessage *
e_msg_composer_get_message (EMsgComposer *composer,
                            gboolean save_html_object_data)
{
    EAttachmentView *view;
    EAttachmentStore *store;
    GtkhtmlEditor *editor;
    gboolean html_content;

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    view = e_msg_composer_get_attachment_view (composer);
    store = e_attachment_view_get_store (view);

    if (e_attachment_store_get_num_loading (store) > 0) {
        if (!em_utils_prompt_user (GTK_WINDOW (composer), NULL,
            "mail-composer:ask-send-message-pending-download", NULL)) {
            return NULL;
        }
    }

    editor = GTKHTML_EDITOR (composer);
    html_content = gtkhtml_editor_get_html_mode (editor);

    return build_message (composer, html_content, save_html_object_data);
}

static gchar *
msg_composer_get_message_print_helper (EMsgComposer *composer,
                                       gboolean html_content)
{
    GtkToggleAction *action;
    GString *string;

    string = g_string_sized_new (128);

    if (html_content)
        g_string_append (string, "text/html");
    else
        g_string_append (string, "text/plain");

    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    if (gtk_toggle_action_get_active (action))
        g_string_append (string, ", pgp-sign");
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
    if (gtk_toggle_action_get_active (action))
        g_string_append (string, ", pgp-encrypt");
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
    if (gtk_toggle_action_get_active (action))
        g_string_append (string, ", smime-sign");
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
    if (gtk_toggle_action_get_active (action))
        g_string_append (string, ", smime-encrypt");
    gtk_toggle_action_set_active (action, FALSE);

    return g_string_free (string, FALSE);
}

CamelMimeMessage *
e_msg_composer_get_message_print (EMsgComposer *composer,
                                  gboolean save_html_object_data)
{
    GtkhtmlEditor *editor;
    EMsgComposer *temp_composer;
    CamelMimeMessage *msg;
    gboolean html_content;
    gchar *flags;

    editor = GTKHTML_EDITOR (composer);
    html_content = gtkhtml_editor_get_html_mode (editor);

    msg = build_message (composer, html_content, save_html_object_data);
    if (msg == NULL)
        return NULL;

    temp_composer = e_msg_composer_new_with_message (msg);
    camel_object_unref (msg);

    /* Override composer flags. */
    flags = msg_composer_get_message_print_helper (
        temp_composer, html_content);

    msg = build_message (temp_composer, TRUE, save_html_object_data);
    if (msg != NULL)
        camel_medium_set_header (
            CAMEL_MEDIUM (msg), "X-Evolution-Format", flags);

    gtk_widget_destroy (GTK_WIDGET (temp_composer));
    g_free (flags);

    return msg;
}

CamelMimeMessage *
e_msg_composer_get_message_draft (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;
    EComposerHeaderTable *table;
    GtkToggleAction *action;
    CamelMimeMessage *msg;
    EAccount *account;
    gboolean html_content;
    gboolean pgp_encrypt;
    gboolean pgp_sign;
    gboolean smime_encrypt;
    gboolean smime_sign;
    GString *flags;

    editor = GTKHTML_EDITOR (composer);
    table = e_msg_composer_get_header_table (composer);
    html_content = gtkhtml_editor_get_html_mode (editor);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    pgp_sign = gtk_toggle_action_get_active (action);
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
    pgp_encrypt = gtk_toggle_action_get_active (action);
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
    smime_sign = gtk_toggle_action_get_active (action);
    gtk_toggle_action_set_active (action, FALSE);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
    smime_encrypt = gtk_toggle_action_get_active (action);
    gtk_toggle_action_set_active (action, FALSE);

    msg = build_message (composer, TRUE, TRUE);
    if (msg == NULL)
        return NULL;

    action = GTK_TOGGLE_ACTION (ACTION (PGP_SIGN));
    gtk_toggle_action_set_active (action, pgp_sign);

    action = GTK_TOGGLE_ACTION (ACTION (PGP_ENCRYPT));
    gtk_toggle_action_set_active (action, pgp_encrypt);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_SIGN));
    gtk_toggle_action_set_active (action, smime_sign);

    action = GTK_TOGGLE_ACTION (ACTION (SMIME_ENCRYPT));
    gtk_toggle_action_set_active (action, smime_encrypt);

    if (msg == NULL)
        return NULL;

    /* Attach account info to the draft. */
    account = e_composer_header_table_get_account (table);
    if (account && account->name)
        camel_medium_set_header (
            CAMEL_MEDIUM (msg),
            "X-Evolution-Account", account->uid);

    flags = g_string_new (html_content ? "text/html" : "text/plain");

    /* This should probably only save the setting if it is
     * different from the from-account default? */
    if (pgp_sign)
        g_string_append (flags, ", pgp-sign");
    if (pgp_encrypt)
        g_string_append (flags, ", pgp-encrypt");
    if (smime_sign)
        g_string_append (flags, ", smime-sign");
    if (smime_encrypt)
        g_string_append (flags, ", smime-encrypt");

    camel_medium_set_header (
        CAMEL_MEDIUM (msg), "X-Evolution-Format", flags->str);
    g_string_free (flags, TRUE);

    return msg;
}

/**
 * e_msg_composer_show_sig:
 * @composer: A message composer widget
 *
 * Set a signature
 **/
void
e_msg_composer_show_sig_file (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;
    GtkHTML *html;
    gchar *html_text;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    editor = GTKHTML_EDITOR (composer);
    html = gtkhtml_editor_get_html (editor);

    if (composer->priv->redirect)
        return;

    composer->priv->in_signature_insert = TRUE;

    gtkhtml_editor_freeze (editor);
    gtkhtml_editor_run_command (editor, "cursor-position-save");
    gtkhtml_editor_undo_begin (editor, "Set signature", "Reset signature");

    /* Delete the old signature. */
    gtkhtml_editor_run_command (editor, "block-selection");
    gtkhtml_editor_run_command (editor, "cursor-bod");
    if (gtkhtml_editor_search_by_data (editor, 1, "ClueFlow", "signature", "1")) {
        gtkhtml_editor_run_command (editor, "select-paragraph");
        gtkhtml_editor_run_command (editor, "delete");
        gtkhtml_editor_set_paragraph_data (editor, "signature", "0");
        gtkhtml_editor_run_command (editor, "delete-back");
    }
    gtkhtml_editor_run_command (editor, "unblock-selection");

    html_text = get_signature_html (composer);
    if (html_text) {
        gtkhtml_editor_run_command (editor, "insert-paragraph");
        if (!gtkhtml_editor_run_command (editor, "cursor-backward"))
            gtkhtml_editor_run_command (editor, "insert-paragraph");
        else
            gtkhtml_editor_run_command (editor, "cursor-forward");

        gtkhtml_editor_set_paragraph_data (editor, "orig", "0");
        gtkhtml_editor_run_command (editor, "indent-zero");
        gtkhtml_editor_run_command (editor, "style-normal");
        gtkhtml_editor_insert_html (editor, html_text);
        g_free (html_text);
    }

    gtkhtml_editor_undo_end (editor);
    gtkhtml_editor_run_command (editor, "cursor-position-restore");
    gtkhtml_editor_thaw (editor);

    composer->priv->in_signature_insert = FALSE;
}

CamelInternetAddress *
e_msg_composer_get_from (EMsgComposer *composer)
{
    CamelInternetAddress *address;
    EComposerHeaderTable *table;
    EAccount *account;

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    table = e_msg_composer_get_header_table (composer);

    account = e_composer_header_table_get_account (table);
    if (account == NULL)
        return NULL;

    address = camel_internet_address_new ();
    camel_internet_address_add (
        address, account->id->name, account->id->address);

    return address;
}

CamelInternetAddress *
e_msg_composer_get_reply_to (EMsgComposer *composer)
{
    CamelInternetAddress *address;
    EComposerHeaderTable *table;
    const gchar *reply_to;

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    table = e_msg_composer_get_header_table (composer);

    reply_to = e_composer_header_table_get_reply_to (table);
    if (reply_to == NULL || *reply_to == '\0')
        return NULL;

    address = camel_internet_address_new ();
    if (camel_address_unformat (CAMEL_ADDRESS (address), reply_to) == -1) {
        camel_object_unref (CAMEL_OBJECT (address));
        return NULL;
    }

    return address;
}

/**
 * e_msg_composer_get_raw_message_text:
 *
 * Returns the text/plain of the message from composer
 **/
GByteArray *
e_msg_composer_get_raw_message_text (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;
    GByteArray *array;
    gchar *text;
    gsize length;

    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    array = g_byte_array_new ();
    editor = GTKHTML_EDITOR (composer);
    text = gtkhtml_editor_get_text_plain (editor, &length);
    g_byte_array_append (array, (guint8 *) text, (guint) length);
    g_free (text);

    return array;
}

void
e_msg_composer_set_enable_autosave (EMsgComposer *composer,
                                    gboolean enabled)
{
    e_composer_autosave_set_enabled (composer, enabled);
}

gboolean
e_msg_composer_is_exiting (EMsgComposer *composer)
{
    g_return_val_if_fail (composer != NULL, FALSE);

    return composer->priv->application_exiting;
}

gboolean
e_msg_composer_request_close_all (void)
{
    GSList *iter, *next;

    for (iter = all_composers; iter != NULL; iter = next) {
        EMsgComposer *composer = iter->data;

        /* The CLOSE action will delete this list node,
         * so grab the next one while we still can. */
        next = iter->next;

        /* Try to autosave before closing.  If it fails for
         * some reason, the CLOSE action will still detect
         * unsaved changes and prompt the user. 
         *
         * FIXME If it /does/ prompt the user, the Cancel
         *       button will act the same as Discard Changes,
         *       which is misleading.
         */
        composer->priv->application_exiting = TRUE;
        e_composer_autosave_snapshot (composer);
        gtk_action_activate (ACTION (CLOSE));
    }

    return (all_composers == NULL);
}

EMsgComposer *
e_msg_composer_load_from_file (const gchar *filename)
{
    CamelStream *stream;
    CamelMimeMessage *msg;
    EMsgComposer *composer;

    g_return_val_if_fail (filename != NULL, NULL);

    stream = camel_stream_fs_new_with_name (filename, O_RDONLY, 0);
    if (stream == NULL)
        return NULL;

    msg = camel_mime_message_new ();
    camel_data_wrapper_construct_from_stream (
        CAMEL_DATA_WRAPPER (msg), stream);
    camel_object_unref (stream);

    composer = e_msg_composer_new_with_message (msg);
    if (composer != NULL)
        gtk_widget_show (GTK_WIDGET (composer));

    return composer;
}

void
e_msg_composer_check_autosave (GtkWindow *parent)
{
    GList *orphans = NULL;
    gint response;
    GError *error = NULL;

    /* Look for orphaned autosave files. */
    orphans = e_composer_autosave_find_orphans (&error);
    if (orphans == NULL) {
        if (error != NULL) {
            g_warning ("%s", error->message);
            g_error_free (error);
        }
        return;
    }

    /* Ask if the user wants to recover the orphaned files. */
    response = e_error_run (
        parent, "mail-composer:recover-autosave", NULL);

    /* Based on the user's response, recover or delete them. */
    while (orphans != NULL) {
        const gchar *filename = orphans->data;
        EMsgComposer *composer;

        if (response == GTK_RESPONSE_YES) {
            /* FIXME: composer is never used */
            composer = autosave_load_draft (filename);
        } else {
            g_unlink (filename);
        }

        g_free (orphans->data);
        orphans = g_list_delete_link (orphans, orphans);
    }
}

void
e_msg_composer_set_alternative (EMsgComposer *composer,
                                gboolean alt)
{
    GtkhtmlEditor *editor;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    editor = GTKHTML_EDITOR (composer);

    composer->priv->is_alternative = alt;
    gtkhtml_editor_set_html_mode (editor, !alt);
}

void
e_msg_composer_reply_indent (EMsgComposer *composer)
{
    GtkhtmlEditor *editor;

    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    editor = GTKHTML_EDITOR (composer);

    if (!gtkhtml_editor_is_paragraph_empty (editor)) {
        if (gtkhtml_editor_is_previous_paragraph_empty (editor))
            gtkhtml_editor_run_command (editor, "cursor-backward");
        else {
            gtkhtml_editor_run_command (editor, "text-default-color");
            gtkhtml_editor_run_command (editor, "italic-off");
            gtkhtml_editor_run_command (editor, "insert-paragraph");
            return;
        }
    }

    gtkhtml_editor_run_command (editor, "style-normal");
    gtkhtml_editor_run_command (editor, "indent-zero");
    gtkhtml_editor_run_command (editor, "text-default-color");
    gtkhtml_editor_run_command (editor, "italic-off");
}

EComposerHeaderTable *
e_msg_composer_get_header_table (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    return E_COMPOSER_HEADER_TABLE (composer->priv->header_table);
}

EAttachmentView *
e_msg_composer_get_attachment_view (EMsgComposer *composer)
{
    g_return_val_if_fail (E_IS_MSG_COMPOSER (composer), NULL);

    return E_ATTACHMENT_VIEW (composer->priv->attachment_paned);
}

void
e_msg_composer_set_send_options (EMsgComposer *composer,
                                 gboolean send_enable)
{
    g_return_if_fail (E_IS_MSG_COMPOSER (composer));

    composer->priv->send_invoked = send_enable;
}

GList *
e_load_spell_languages (void)
{
    GConfClient *client;
    GList *spell_languages = NULL;
    GSList *list;
    const gchar *key;
    GError *error = NULL;

    /* Ask GConf for a list of spell check language codes. */
    client = gconf_client_get_default ();
    key = COMPOSER_GCONF_SPELL_LANGUAGES_KEY;
    list = gconf_client_get_list (client, key, GCONF_VALUE_STRING, &error);
    g_object_unref (client);

    /* Convert the codes to spell language structs. */
    while (list != NULL) {
        gchar *language_code = list->data;
        const GtkhtmlSpellLanguage *language;

        language = gtkhtml_spell_language_lookup (language_code);
        if (language != NULL)
            spell_languages = g_list_prepend (
                spell_languages, (gpointer) language);

        list = g_slist_delete_link (list, list);
        g_free (language_code);
    }

    spell_languages = g_list_reverse (spell_languages);

    /* Pick a default spell language if GConf came back empty. */
    if (spell_languages == NULL) {
        const GtkhtmlSpellLanguage *language;

        language = gtkhtml_spell_language_lookup (NULL);
        
        if (language) {
            spell_languages = g_list_prepend (
                spell_languages, (gpointer) language);

        /* Don't overwrite the stored spell check language
         * codes if there was a problem retrieving them. */
            if (error == NULL)
                e_save_spell_languages (spell_languages);
        }
    }

    if (error != NULL) {
        g_warning ("%s", error->message);
        g_error_free (error);
    }

    return spell_languages;
}

void
e_save_spell_languages (GList *spell_languages)
{
    GConfClient *client;
    GSList *list = NULL;
    const gchar *key;
    GError *error = NULL;

    /* Build a list of spell check language codes. */
    while (spell_languages != NULL) {
        const GtkhtmlSpellLanguage *language;
        const gchar *language_code;

        language = spell_languages->data;
        language_code = gtkhtml_spell_language_get_code (language);
        list = g_slist_prepend (list, (gpointer) language_code);

        spell_languages = g_list_next (spell_languages);
    }

    list = g_slist_reverse (list);

    /* Save the language codes to GConf. */
    client = gconf_client_get_default ();
    key = COMPOSER_GCONF_SPELL_LANGUAGES_KEY;
    gconf_client_set_list (client, key, GCONF_VALUE_STRING, list, &error);
    g_object_unref (client);

    g_slist_free (list);

    if (error != NULL) {
        g_warning ("%s", error->message);
        g_error_free (error);
    }
}