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-rw-r--r--em-format/em-format-quote.c586
1 files changed, 586 insertions, 0 deletions
diff --git a/em-format/em-format-quote.c b/em-format/em-format-quote.c
new file mode 100644
index 0000000000..5503cca916
--- /dev/null
+++ b/em-format/em-format-quote.c
@@ -0,0 +1,586 @@
+/*
+ *
+ * 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:
+ * Jeffrey Stedfast <fejj@ximian.com>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <string.h>
+
+#include <camel/camel-iconv.h>
+#include <camel/camel-stream-filter.h>
+#include <camel/camel-mime-filter-tohtml.h>
+#include <camel/camel-mime-filter-enriched.h>
+#include <camel/camel-string-utils.h>
+#include <camel/camel-mime-message.h>
+#include <camel/camel-url.h>
+
+#include <glib/gi18n.h>
+#include <gconf/gconf-client.h>
+
+#include "em-stripsig-filter.h"
+#include "em-format-quote.h"
+
+struct _EMFormatQuotePrivate {
+ int dummy;
+};
+
+static void emfq_format_clone(EMFormat *, CamelFolder *, const char *, CamelMimeMessage *, EMFormat *);
+static void emfq_format_error(EMFormat *emf, CamelStream *stream, const char *txt);
+static void emfq_format_message(EMFormat *, CamelStream *, CamelMimePart *, const EMFormatHandler *);
+static void emfq_format_source(EMFormat *, CamelStream *, CamelMimePart *);
+static void emfq_format_attachment(EMFormat *, CamelStream *, CamelMimePart *, const char *, const EMFormatHandler *);
+
+static void emfq_builtin_init(EMFormatQuoteClass *efhc);
+
+static gpointer parent_class;
+
+static void
+emfq_init(GObject *o)
+{
+ EMFormatQuote *emfq =(EMFormatQuote *) o;
+
+ /* we want to convert url's etc */
+ emfq->text_html_flags = CAMEL_MIME_FILTER_TOHTML_PRE | CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS
+ | CAMEL_MIME_FILTER_TOHTML_CONVERT_ADDRESSES;
+}
+
+static void
+emfq_finalize (GObject *object)
+{
+ EMFormatQuote *emfq =(EMFormatQuote *) object;
+
+ if (emfq->stream)
+ camel_object_unref(emfq->stream);
+ g_free(emfq->credits);
+
+ /* Chain up to parent's finalize() method. */
+ G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
+static void
+emfq_base_init(EMFormatQuoteClass *emfqclass)
+{
+ emfq_builtin_init(emfqclass);
+}
+
+static void
+emfq_class_init (EMFormatQuoteClass *class)
+{
+ GObjectClass *object_class;
+ EMFormatClass *format_class;
+
+ parent_class = g_type_class_peek_parent (class);
+ g_type_class_add_private (class, sizeof (EMFormatQuotePrivate));
+
+ object_class = G_OBJECT_CLASS (class);
+ object_class->finalize = emfq_finalize;
+
+ format_class = EM_FORMAT_CLASS (class);
+ format_class->format_clone = emfq_format_clone;
+ format_class->format_error = emfq_format_error;
+ format_class->format_source = emfq_format_source;
+ format_class->format_attachment = emfq_format_attachment;
+}
+
+GType
+em_format_quote_get_type (void)
+{
+ static GType type = 0;
+
+ if (G_UNLIKELY (type == 0)) {
+ static const GTypeInfo type_info = {
+ sizeof (EMFormatQuoteClass),
+ (GBaseInitFunc) emfq_base_init,
+ (GBaseFinalizeFunc) NULL,
+ (GClassInitFunc) emfq_class_init,
+ (GClassFinalizeFunc) NULL,
+ NULL, /* class_data */
+ sizeof (EMFormatQuote),
+ 0, /* n_preallocs */
+ (GInstanceInitFunc) emfq_init,
+ NULL /* value_table */
+ };
+
+ type = g_type_register_static (
+ EM_TYPE_FORMAT, "EMFormatQuote", &type_info, 0);
+ }
+
+ return type;
+}
+
+EMFormatQuote *
+em_format_quote_new (const gchar *credits,
+ CamelStream *stream,
+ guint32 flags)
+{
+ EMFormatQuote *emfq;
+
+ emfq = g_object_new (EM_TYPE_FORMAT_QUOTE, NULL);
+
+ emfq->credits = g_strdup (credits);
+ emfq->stream = stream;
+ camel_object_ref (stream);
+ emfq->flags = flags;
+
+ return emfq;
+}
+
+static void
+emfq_format_empty_line(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+ camel_stream_printf(stream, "<br>\n");
+}
+
+static void
+emfq_format_clone(EMFormat *emf, CamelFolder *folder, const char *uid, CamelMimeMessage *msg, EMFormat *src)
+{
+ EMFormatQuote *emfq = (EMFormatQuote *) emf;
+ const EMFormatHandler *handle;
+ GConfClient *gconf;
+
+ /* Chain up to parent's format_clone() method. */
+ EM_FORMAT_CLASS (parent_class)->format_clone (emf, folder, uid, msg, src);
+
+ gconf = gconf_client_get_default ();
+ camel_stream_reset(emfq->stream);
+ if (gconf_client_get_bool(gconf, "/apps/evolution/mail/composer/top_signature", NULL))
+ emfq_format_empty_line(emf, emfq->stream, (CamelMimePart *)msg, NULL);
+ g_object_unref (gconf);
+ handle = em_format_find_handler(emf, "x-evolution/message/prefix");
+ if (handle)
+ handle->handler(emf, emfq->stream, (CamelMimePart *)msg, handle);
+ handle = em_format_find_handler(emf, "x-evolution/message/rfc822");
+ if (handle)
+ handle->handler(emf, emfq->stream, (CamelMimePart *)msg, handle);
+
+ camel_stream_flush(emfq->stream);
+
+ g_signal_emit_by_name(emf, "complete");
+}
+
+static void
+emfq_format_error(EMFormat *emf, CamelStream *stream, const char *txt)
+{
+ /* FIXME: should we even bother writing error text for quoting? probably not... */
+}
+
+static void
+emfq_format_text_header (EMFormatQuote *emfq, CamelStream *stream, const char *label, const char *value, guint32 flags, int is_html)
+{
+ const char *fmt, *html;
+ char *mhtml = NULL;
+
+ if (value == NULL)
+ return;
+
+ while (*value == ' ')
+ value++;
+
+ if (!is_html)
+ html = mhtml = camel_text_to_html (value, 0, 0);
+ else
+ html = value;
+
+ if (flags & EM_FORMAT_HEADER_BOLD)
+ fmt = "<b>%s</b>: %s<br>";
+ else
+ fmt = "%s: %s<br>";
+
+ camel_stream_printf (stream, fmt, label, html);
+ g_free (mhtml);
+}
+
+static char *addrspec_hdrs[] = {
+ "Sender", "From", "Reply-To", "To", "Cc", "Bcc",
+ "Resent-Sender", "Resent-from", "Resent-Reply-To",
+ "Resent-To", "Resent-cc", "Resent-Bcc", NULL
+};
+
+#if 0
+/* FIXME: include Sender and Resent-* headers too? */
+/* For Translators only: The following strings are used in the header table in the preview pane */
+static char *i18n_hdrs[] = {
+ N_("From"), N_("Reply-To"), N_("To"), N_("Cc"), N_("Bcc")
+};
+#endif
+
+static void
+emfq_format_address (GString *out, struct _camel_header_address *a)
+{
+ guint32 flags = CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES;
+ char *name, *mailto, *addr;
+
+ while (a) {
+ if (a->name)
+ name = camel_text_to_html (a->name, flags, 0);
+ else
+ name = NULL;
+
+ switch (a->type) {
+ case CAMEL_HEADER_ADDRESS_NAME:
+ if (name && *name) {
+ char *real, *mailaddr;
+
+ g_string_append_printf (out, "%s &lt;", name);
+ /* rfc2368 for mailto syntax and url encoding extras */
+ if ((real = camel_header_encode_phrase ((unsigned char *)a->name))) {
+ mailaddr = g_strdup_printf ("%s <%s>", real, a->v.addr);
+ g_free (real);
+ mailto = camel_url_encode (mailaddr, "?=&()");
+ g_free (mailaddr);
+ } else {
+ mailto = camel_url_encode (a->v.addr, "?=&()");
+ }
+ } else {
+ mailto = camel_url_encode (a->v.addr, "?=&()");
+ }
+ addr = camel_text_to_html (a->v.addr, flags, 0);
+ g_string_append_printf (out, "<a href=\"mailto:%s\">%s</a>", mailto, addr);
+ g_free (mailto);
+ g_free (addr);
+
+ if (name && *name)
+ g_string_append (out, "&gt;");
+ break;
+ case CAMEL_HEADER_ADDRESS_GROUP:
+ g_string_append_printf (out, "%s: ", name);
+ emfq_format_address (out, a->v.members);
+ g_string_append_printf (out, ";");
+ break;
+ default:
+ g_warning ("Invalid address type");
+ break;
+ }
+
+ g_free (name);
+
+ a = a->next;
+ if (a)
+ g_string_append (out, ", ");
+ }
+}
+
+static void
+canon_header_name (char *name)
+{
+ char *inptr = name;
+
+ /* canonicalise the header name... first letter is
+ * capitalised and any letter following a '-' also gets
+ * capitalised */
+
+ if (*inptr >= 'a' && *inptr <= 'z')
+ *inptr -= 0x20;
+
+ inptr++;
+
+ while (*inptr) {
+ if (inptr[-1] == '-' && *inptr >= 'a' && *inptr <= 'z')
+ *inptr -= 0x20;
+ else if (*inptr >= 'A' && *inptr <= 'Z')
+ *inptr += 0x20;
+
+ inptr++;
+ }
+}
+
+static void
+emfq_format_header (EMFormat *emf, CamelStream *stream, CamelMedium *part, const char *namein, guint32 flags, const char *charset)
+{
+ CamelMimeMessage *msg = (CamelMimeMessage *) part;
+ EMFormatQuote *emfq = (EMFormatQuote *) emf;
+ char *name, *buf, *value = NULL;
+ const char *txt, *label;
+ gboolean addrspec = FALSE;
+ int is_html = FALSE;
+ int i;
+
+ name = g_alloca (strlen (namein) + 1);
+ strcpy (name, namein);
+ canon_header_name (name);
+
+ for (i = 0; addrspec_hdrs[i]; i++) {
+ if (!strcmp (name, addrspec_hdrs[i])) {
+ addrspec = TRUE;
+ break;
+ }
+ }
+
+ label = _(name);
+
+ if (addrspec) {
+ struct _camel_header_address *addrs;
+ GString *html;
+
+ if (!(txt = camel_medium_get_header (part, name)))
+ return;
+
+ buf = camel_header_unfold (txt);
+ if (!(addrs = camel_header_address_decode (txt, emf->charset ? emf->charset : emf->default_charset))) {
+ g_free (buf);
+ return;
+ }
+
+ g_free (buf);
+
+ html = g_string_new ("");
+ emfq_format_address (html, addrs);
+ camel_header_address_unref (addrs);
+ txt = value = html->str;
+ g_string_free (html, FALSE);
+ flags |= EM_FORMAT_HEADER_BOLD;
+ is_html = TRUE;
+ } else if (!strcmp (name, "Subject")) {
+ txt = camel_mime_message_get_subject (msg);
+ label = _("Subject");
+ flags |= EM_FORMAT_HEADER_BOLD;
+ } else if (!strcmp (name, "X-Evolution-Mailer")) { /* pseudo-header */
+ if (!(txt = camel_medium_get_header (part, "x-mailer")))
+ if (!(txt = camel_medium_get_header (part, "user-agent")))
+ if (!(txt = camel_medium_get_header (part, "x-newsreader")))
+ if (!(txt = camel_medium_get_header (part, "x-mimeole")))
+ return;
+
+ txt = value = camel_header_format_ctext (txt, charset);
+
+ label = _("Mailer");
+ flags |= EM_FORMAT_HEADER_BOLD;
+ } else if (!strcmp (name, "Date") || !strcmp (name, "Resent-Date")) {
+ if (!(txt = camel_medium_get_header (part, name)))
+ return;
+
+ flags |= EM_FORMAT_HEADER_BOLD;
+ } else {
+ txt = camel_medium_get_header (part, name);
+ buf = camel_header_unfold (txt);
+ txt = value = camel_header_decode_string (txt, charset);
+ g_free (buf);
+ }
+
+ emfq_format_text_header (emfq, stream, label, txt, flags, is_html);
+
+ g_free (value);
+}
+
+static void
+emfq_format_headers (EMFormatQuote *emfq, CamelStream *stream, CamelMedium *part)
+{
+ EMFormat *emf = (EMFormat *) emfq;
+ CamelContentType *ct;
+ const char *charset;
+ EMFormatHeader *h;
+
+ if (!part)
+ return;
+
+ ct = camel_mime_part_get_content_type ((CamelMimePart *) part);
+ charset = camel_content_type_param (ct, "charset");
+ charset = camel_iconv_charset_name (charset);
+
+ /* dump selected headers */
+ h = (EMFormatHeader *) emf->header_list.head;
+ while (h->next) {
+ emfq_format_header (emf, stream, part, h->name, h->flags, charset);
+ h = h->next;
+ }
+
+ camel_stream_printf(stream, "<br>\n");
+}
+
+static void
+emfq_format_message_prefix(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+ EMFormatQuote *emfq = (EMFormatQuote *) emf;
+
+ if (emfq->credits)
+ camel_stream_printf(stream, "%s<br>\n", emfq->credits);
+}
+
+static void
+emfq_format_message(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const EMFormatHandler *info)
+{
+ EMFormatQuote *emfq = (EMFormatQuote *) emf;
+
+ if (emfq->flags & EM_FORMAT_QUOTE_CITE)
+ camel_stream_printf(stream, "<!--+GtkHTML:<DATA class=\"ClueFlow\" key=\"orig\" value=\"1\">-->\n"
+ "<blockquote type=cite>\n");
+
+ if (((CamelMimePart *)emf->message) != part) {
+ camel_stream_printf(stream, "%s</br>\n", _("-------- Forwarded Message --------"));
+ emfq_format_headers (emfq, stream, (CamelMedium *)part);
+ } else if (emfq->flags & EM_FORMAT_QUOTE_HEADERS)
+ emfq_format_headers (emfq, stream, (CamelMedium *)part);
+
+ em_format_part (emf, stream, part);
+
+ if (emfq->flags & EM_FORMAT_QUOTE_CITE)
+ camel_stream_write_string(stream, "</blockquote><!--+GtkHTML:<DATA class=\"ClueFlow\" clear=\"orig\">-->");
+}
+
+static void
+emfq_format_source(EMFormat *emf, CamelStream *stream, CamelMimePart *part)
+{
+ CamelStreamFilter *filtered_stream;
+ CamelMimeFilter *html_filter;
+
+ filtered_stream = camel_stream_filter_new_with_stream ((CamelStream *) stream);
+ html_filter = camel_mime_filter_tohtml_new (CAMEL_MIME_FILTER_TOHTML_CONVERT_NL
+ | CAMEL_MIME_FILTER_TOHTML_CONVERT_SPACES
+ | CAMEL_MIME_FILTER_TOHTML_ESCAPE_8BIT, 0);
+ camel_stream_filter_add(filtered_stream, html_filter);
+ camel_object_unref(html_filter);
+
+ em_format_format_text(emf, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
+ camel_object_unref(filtered_stream);
+}
+
+static void
+emfq_format_attachment(EMFormat *emf, CamelStream *stream, CamelMimePart *part, const char *mime_type, const EMFormatHandler *handle)
+{
+ if (handle && em_format_is_inline(emf, emf->part_id->str, part, handle)) {
+ char *text, *html;
+
+ camel_stream_write_string(stream,
+ "<table border=1 cellspacing=0 cellpadding=0><tr><td><font size=-1>\n");
+
+ /* output some info about it */
+ text = em_format_describe_part(part, mime_type);
+ html = camel_text_to_html(text, ((EMFormatQuote *)emf)->text_html_flags & CAMEL_MIME_FILTER_TOHTML_CONVERT_URLS, 0);
+ camel_stream_write_string(stream, html);
+ g_free(html);
+ g_free(text);
+
+ camel_stream_write_string(stream, "</font></td></tr></table>");
+
+ handle->handler(emf, stream, part, handle);
+ }
+}
+
+#include <camel/camel-medium.h>
+#include <camel/camel-mime-part.h>
+#include <camel/camel-multipart.h>
+#include <camel/camel-url.h>
+
+static void
+emfq_text_plain(EMFormatQuote *emfq, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
+{
+ CamelStreamFilter *filtered_stream;
+ CamelMimeFilter *html_filter;
+ CamelMimeFilter *sig_strip;
+ CamelContentType *type;
+ const char *format;
+ guint32 rgb = 0x737373, flags;
+
+ if (!part)
+ return;
+
+ flags = emfq->text_html_flags;
+
+ /* Check for RFC 2646 flowed text. */
+ type = camel_mime_part_get_content_type(part);
+ if (camel_content_type_is(type, "text", "plain")
+ && (format = camel_content_type_param(type, "format"))
+ && !g_ascii_strcasecmp(format, "flowed"))
+ flags |= CAMEL_MIME_FILTER_TOHTML_FORMAT_FLOWED;
+
+ filtered_stream = camel_stream_filter_new_with_stream(stream);
+
+ if (emfq->flags != 0) {
+ sig_strip = em_stripsig_filter_new ();
+ camel_stream_filter_add (filtered_stream, sig_strip);
+ camel_object_unref (sig_strip);
+ }
+
+ html_filter = camel_mime_filter_tohtml_new(flags, rgb);
+ camel_stream_filter_add(filtered_stream, html_filter);
+ camel_object_unref(html_filter);
+
+ em_format_format_text((EMFormat *)emfq, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
+ camel_stream_flush((CamelStream *)filtered_stream);
+ camel_object_unref(filtered_stream);
+}
+
+static void
+emfq_text_enriched(EMFormatQuote *emfq, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
+{
+ CamelStreamFilter *filtered_stream;
+ CamelMimeFilter *enriched;
+ CamelDataWrapper *dw;
+ guint32 flags = 0;
+
+ dw = camel_medium_get_content_object((CamelMedium *)part);
+
+ if (!strcmp(info->mime_type, "text/richtext")) {
+ flags = CAMEL_MIME_FILTER_ENRICHED_IS_RICHTEXT;
+ camel_stream_write_string(stream, "\n<!-- text/richtext -->\n");
+ } else {
+ camel_stream_write_string(stream, "\n<!-- text/enriched -->\n");
+ }
+
+ enriched = camel_mime_filter_enriched_new(flags);
+ filtered_stream = camel_stream_filter_new_with_stream (stream);
+ camel_stream_filter_add(filtered_stream, enriched);
+ camel_object_unref(enriched);
+
+ camel_stream_write_string(stream, "<br><hr><br>");
+ em_format_format_text((EMFormat *)emfq, (CamelStream *)filtered_stream, (CamelDataWrapper *)part);
+ camel_object_unref(filtered_stream);
+}
+
+static void
+emfq_text_html(EMFormat *emf, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
+{
+ camel_stream_write_string(stream, "\n<!-- text/html -->\n");
+ em_format_format_text(emf, stream, (CamelDataWrapper *)part);
+}
+
+static void
+emfq_ignore(EMFormat *emf, CamelStream *stream, CamelMimePart *part, EMFormatHandler *info)
+{
+ /* NOOP */
+}
+
+static EMFormatHandler type_builtin_table[] = {
+ { "text/plain",(EMFormatFunc)emfq_text_plain },
+ { "text/enriched",(EMFormatFunc)emfq_text_enriched },
+ { "text/richtext",(EMFormatFunc)emfq_text_enriched },
+ { "text/html",(EMFormatFunc)emfq_text_html },
+/* { "multipart/related",(EMFormatFunc)emfq_multipart_related },*/
+ { "message/external-body", (EMFormatFunc)emfq_ignore },
+ { "multipart/appledouble", (EMFormatFunc)emfq_ignore },
+
+ /* internal evolution types */
+ { "x-evolution/evolution-rss-feed", (EMFormatFunc)emfq_text_html },
+ { "x-evolution/message/rfc822", (EMFormatFunc)emfq_format_message },
+ { "x-evolution/message/prefix", (EMFormatFunc)emfq_format_message_prefix },
+};
+
+static void
+emfq_builtin_init(EMFormatQuoteClass *efhc)
+{
+ int i;
+
+ for (i=0;i<sizeof(type_builtin_table)/sizeof(type_builtin_table[0]);i++)
+ em_format_class_add_handler((EMFormatClass *)efhc, &type_builtin_table[i]);
+}
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