Mail formatter rewrite

All mail-parsing and formatting code has been moved to em-format.
Parsing is handeled by EMailParser class, formatting by EMailFormatter.
Both classes have registry which hold extensions - simple classes
that do actual parsing and formatting. Each supported mime-type
has it's own parser and formatter extension class.

1 files changed, 0 insertions, 634 deletions

diff --git a/mail/em-format-html-print.c b/mail/em-format-html-print.c
deleted file mode 100644
index 150c16dbf5..0000000000
--- a/mail/em-format-html-print.c
+++ /dev/null
@@ -1,634 +0,0 @@
-/*
- *
- * 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 <glib/gi18n.h>
-#include <gtk/gtk.h>
-
-#include "em-format-html-print.h"
-#include "em-format-html-display.h"
-#include "e-mail-attachment-bar.h"
-#include <e-util/e-print.h>
-#include <e-util/e-util.h>
-#include <widgets/misc/e-attachment-store.h>
-#include <libemail-engine/mail-ops.h>
-
-#include "em-format-html-print.h"
-
-#define d(x)
-
-static gpointer parent_class = NULL;
-
-struct _EMFormatHTMLPrintPrivate {
-
-	EMFormatHTML *original_formatter;
-	EMFormatPURI *top_level_puri;
-
-        /* List of attachment PURIs */
-        GList *attachments;
-
-};
-
-enum {
-	PROP_0,
-	PROP_ORIGINAL_FORMATTER
-};
-
-static void efhp_write_print_layout	(EMFormat *emf, EMFormatPURI *puri, CamelStream *stream, EMFormatWriterInfo *info, GCancellable *cancellable);
-static void efhp_write_headers		(EMFormat *emf, EMFormatPURI *puri, CamelStream *stream, EMFormatWriterInfo *info, GCancellable *cancellable);
-static void efhp_write_inline_attachment (EMFormat *emf, EMFormatPURI *puri, CamelStream *stream, EMFormatWriterInfo *info, GCancellable *cancellable);
-
-static void
-efhp_write_attachments_list (EMFormatHTMLPrint *efhp,
-                             CamelStream *stream,
-                             EMFormatWriterInfo *info,
-                             GCancellable *cancellable)
-{
-	GString *str;
-	GList *iter;
-
-	if (!efhp->priv->attachments)
-		return;
-
-	str = g_string_new (
-		"<table border=\"0\" cellspacing=\"5\" cellpadding=\"0\" "
-		       "class=\"attachments-list\" >\n");
-	g_string_append_printf (str,
-		"<tr><th colspan=\"2\"><h1>%s</h1></td></tr>\n"
-		"<tr><th>%s</th><th>%s</th></tr>\n",
-		_("Attachments"), _("Name"), _("Size"));
-
-	for (iter = efhp->priv->attachments; iter; iter = iter->next) {
-		EMFormatPURI *puri = iter->data;
-		EAttachment *attachment;
-		GFileInfo *fi;
-		gchar *name, *size;
-		GByteArray *ba;
-		CamelDataWrapper *dw;
-
-		attachment = ((EMFormatAttachmentPURI *) puri)->attachment;
-		fi = e_attachment_get_file_info (attachment);
-		if (!fi)
-			continue;
-
-		if (e_attachment_get_description (attachment) &&
-                    *e_attachment_get_description (attachment)) {
-			name = g_strdup_printf ("%s (%s)",
-				e_attachment_get_description (attachment),
-				g_file_info_get_display_name (fi));
-		} else {
-			name = g_strdup (g_file_info_get_display_name (fi));
-		}
-
-		dw = camel_medium_get_content ((CamelMedium *) puri->part);
-		ba = camel_data_wrapper_get_byte_array (dw);
-		size = g_format_size (ba->len);
-
-		g_string_append_printf (str, "<tr><td>%s</td><td>%s</td></tr>\n",
-			name, size);
-
-		g_free (name);
-		g_free (size);
-	}
-
-	g_string_append (str, "</table>\n");
-
-	camel_stream_write_string (stream, str->str, cancellable, NULL);
-	g_string_free (str, TRUE);
-}
-
-static void
-efhp_write_headers (EMFormat *emf,
-                    EMFormatPURI *puri,
-                    CamelStream *stream,
-                    EMFormatWriterInfo *info,
-                    GCancellable *cancellable)
-{
-	struct _camel_header_raw raw_header;
-	GString *str, *tmp;
-	gchar *subject;
-	const gchar *buf;
-	EMFormatPURI *p;
-	GList *iter;
-	gint attachments_count;
-	gchar *puri_prefix;
-
-	buf = camel_medium_get_header (CAMEL_MEDIUM (puri->part), "subject");
-	subject = camel_header_decode_string (buf, "UTF-8");
-	str = g_string_new ("<table border=\"0\" cellspacing=\"5\" " \
-			    "cellpadding=\"0\" class=\"printing-header\">\n");
-	g_string_append_printf (
-		str,
-		"<tr class=\"header-item\">"
-		"<td colspan=\"2\"><h1>%s</h1></td>"
-		"</tr>\n",
-		subject);
-	g_free (subject);
-
-	for (iter = g_queue_peek_head_link (&emf->header_list); iter; iter = iter->next) {
-
-		EMFormatHeader *header = iter->data;
-		raw_header.name = header->name;
-
-		/* Skip 'Subject' header, it's already displayed. */
-		if (g_ascii_strncasecmp (header->name, "Subject", 7) == 0)
-			continue;
-
-		if (header->value && *header->value) {
-			raw_header.value = header->value;
-			em_format_html_format_header (emf, str,
-				CAMEL_MEDIUM (puri->part), &raw_header,
-				header->flags | EM_FORMAT_HTML_HEADER_NOLINKS,
-				"UTF-8");
-		} else {
-			raw_header.value = g_strdup (camel_medium_get_header (
-				CAMEL_MEDIUM (emf->message), header->name));
-
-			if (raw_header.value && *raw_header.value) {
-				em_format_html_format_header (emf, str,
-					CAMEL_MEDIUM (puri->part), &raw_header,
-					header->flags | EM_FORMAT_HTML_HEADER_NOLINKS,
-					"UTF-8");
-			}
-
-			if (raw_header.value)
-				g_free (raw_header.value);
-		}
-	}
-
-        /* Get prefix of this PURI */
-	puri_prefix = g_strndup (puri->uri, g_strrstr (puri->uri, ".") - puri->uri);
-
-	/* Add encryption/signature header */
-	raw_header.name = _("Security");
-	tmp = g_string_new ("");
-	/* Find first secured part. */
-	for (iter = emf->mail_part_list, puri; iter; iter = iter->next) {
-
-		p = iter->data;
-
-		if (p->validity_type == 0)
-			continue;
-
-		if (!g_str_has_prefix (p->uri, puri_prefix))
-			continue;
-
-		if ((p->validity_type & EM_FORMAT_VALIDITY_FOUND_PGP) &&
-		    (p->validity_type & EM_FORMAT_VALIDITY_FOUND_SIGNED)) {
-			g_string_append (tmp, _("GPG signed"));
-		}
-		if ((p->validity_type & EM_FORMAT_VALIDITY_FOUND_PGP) &&
-		    (p->validity_type & EM_FORMAT_VALIDITY_FOUND_ENCRYPTED)) {
-			if (tmp->len > 0) g_string_append (tmp, ", ");
-			g_string_append (tmp, _("GPG encrpyted"));
-		}
-		if ((p->validity_type & EM_FORMAT_VALIDITY_FOUND_SMIME) &&
-		    (p->validity_type & EM_FORMAT_VALIDITY_FOUND_SIGNED)) {
-
-			if (tmp->len > 0) g_string_append (tmp, ", ");
-			g_string_append (tmp, _("S/MIME signed"));
-		}
-		if ((p->validity_type & EM_FORMAT_VALIDITY_FOUND_SMIME) &&
-		    (p->validity_type & EM_FORMAT_VALIDITY_FOUND_ENCRYPTED)) {
-
-			if (tmp->len > 0) g_string_append (tmp, ", ");
-			g_string_append (tmp, _("S/MIME encrpyted"));
-		}
-
-		break;
-	}
-
-	if (tmp->len > 0) {
-		raw_header.value = tmp->str;
-		em_format_html_format_header (emf, str, CAMEL_MEDIUM (p->part),
-			&raw_header, EM_FORMAT_HEADER_BOLD | EM_FORMAT_HTML_HEADER_NOLINKS, "UTF-8");
-	}
-	g_string_free (tmp, TRUE);
-
-	/* Count attachments and display the number as a header */
-	attachments_count = 0;
-
-	for (iter = emf->mail_part_list; iter; iter = iter ? iter->next : iter) {
-
-		p = iter->data;
-
-		if (!g_str_has_prefix (p->uri, puri_prefix))
-			continue;
-
-		if ((p->is_attachment || g_str_has_suffix(p->uri, ".attachment")) &&
-		    (!p->cid)) {
-			attachments_count++;
-                        /* EFHD sometimes creates two PURIs per attachment! */
-			if (iter->next && iter->next->data) {
-				EMFormatPURI *p2 = iter->next->data;
-				if (g_str_has_prefix (p2->uri, p->uri))
-					iter = iter->next;
-			}
-		}
-	}
-	if (attachments_count > 0) {
-		raw_header.name = _("Attachments");
-		raw_header.value = g_strdup_printf ("%d", attachments_count);
-		em_format_html_format_header (emf, str, CAMEL_MEDIUM (puri->part),
-			&raw_header, EM_FORMAT_HEADER_BOLD | EM_FORMAT_HTML_HEADER_NOLINKS, "UTF-8");
-		g_free (raw_header.value);
-	}
-
-	g_string_append (str, "</table>");
-
-	camel_stream_write_string (stream, str->str, cancellable, NULL);
-	g_string_free (str, TRUE);
-	g_free (puri_prefix);
-}
-
-static void
-efhp_write_inline_attachment (EMFormat *emf,
-                              EMFormatPURI *puri,
-                              CamelStream *stream,
-                              EMFormatWriterInfo *info,
-                              GCancellable *cancellable)
-{
-	gchar *name;
-	EMFormatAttachmentPURI *att_puri = (EMFormatAttachmentPURI *) puri;
-	EAttachment *attachment;
-	GFileInfo *fi;
-
-	attachment = att_puri->attachment;
-	fi = e_attachment_get_file_info (attachment);
-
-	if (e_attachment_get_description (attachment) &&
-            *e_attachment_get_description (attachment)) {
-		name = g_strdup_printf ("<h2>Attachment: %s (%s)</h2>\n",
-			e_attachment_get_description (attachment),
-			g_file_info_get_display_name (fi));
-	} else {
-		name = g_strdup_printf ("<h2>Attachment: %s</h2>\n",
-			g_file_info_get_display_name (fi));
-	}
-
-	camel_stream_write_string (stream, name, cancellable, NULL);
-	g_free (name);
-}
-
-static void
-efhp_write_print_layout (EMFormat *emf,
-                         EMFormatPURI *puri,
-                         CamelStream *stream,
-                         EMFormatWriterInfo *info,
-                         GCancellable *cancellable)
-{
-	GList *iter;
-	EMFormatWriterInfo print_info = {
-		EM_FORMAT_WRITE_MODE_PRINTING, FALSE, FALSE };
-	EMFormatHTMLPrint *efhp = EM_FORMAT_HTML_PRINT (emf);
-
-	g_list_free (efhp->priv->attachments);
-	efhp->priv->attachments = NULL;
-
-	camel_stream_write_string (stream,
-		"<!DOCTYPE HTML>\n<html>\n"
-		"<head>\n<meta name=\"generator\" content=\"Evolution Mail Component\" />\n"
-		"<title>Evolution Mail Display</title>\n"
-		"<link type=\"text/css\" rel=\"stylesheet\" media=\"print\" "
-		      "href=\"evo-file://" EVOLUTION_PRIVDATADIR "/theme/webview-print.css\" />\n"
-		"</head>\n"
-		"<body style=\"background: #FFF; color: #000;\">",
-		cancellable, NULL);
-
-	for (iter = emf->mail_part_list; iter != NULL; iter = iter ? iter->next : iter) {
-
-		EMFormatPURI *puri = iter->data;
-
-		if (g_str_has_suffix (puri->uri, "print_layout"))
-			continue;
-
-		/* To late to change .headers writer_func, do it manually. */
-		if (g_str_has_suffix (puri->uri, ".headers")) {
-			efhp_write_headers (emf, puri, stream, &print_info, cancellable);
-			continue;
-		}
-
-		if (g_str_has_suffix (puri->uri, ".rfc822")) {
-
-			puri->write_func (emf, puri, stream, &print_info, cancellable);
-
-			while (iter && !g_str_has_suffix (puri->uri, ".rfc822.end")) {
-
-				iter = iter->next;
-				if (iter)
-					puri = iter->data;
-			}
-
-			if (!iter)
-				break;
-
-			continue;
-
-		}
-
-		if (puri->is_attachment || g_str_has_suffix (puri->uri, ".attachment")) {
-			const EMFormatHandler *handler;
-			CamelContentType *ct;
-			gchar *mime_type;
-
-			if (puri->cid && g_ascii_strncasecmp (puri->cid, "cid:", 4) == 0)
-				continue;
-
-			ct = camel_mime_part_get_content_type (puri->part);
-			mime_type = camel_content_type_simple (ct);
-
-			handler = em_format_find_handler (puri->emf, mime_type);
-			d(printf("Handler for PURI %s (%s): %s\n", puri->uri, mime_type,
-				 handler ? handler->mime_type : "(null)"));
-			g_free (mime_type);
-
-			efhp->priv->attachments =
-				g_list_append (efhp->priv->attachments, puri);
-
-			/* If we can't inline this attachment, skip it */
-			if (handler && puri->write_func) {
-				efhp_write_inline_attachment (puri->emf, puri,
-					stream, &print_info, cancellable);
-
-				if (iter->next && iter->next->data) {
-					EMFormatPURI *p;
-					p = iter->next->data;
-
-                                        /* Has the next PURI the same prefix? */
-					if (p->write_func &&
-					    g_str_has_prefix (p->uri, puri->uri)) {
-						p->write_func (emf, p, stream,
-						       &print_info, cancellable);
-						iter = iter->next;
-					} else {
-						if (puri->write_func) {
-							puri->write_func (emf, puri,
-								stream, &print_info,
-								cancellable);
-						}
-					}
-				}
-			}
-
-			continue;
-		}
-
-		/* Ignore widget parts and unwritable non-attachment parts */
-		if (puri->write_func == NULL)
-			continue;
-
-                /* Passed all tests, probably a regular part - display it */
-		puri->write_func (puri->emf, puri, stream, &print_info, cancellable);
-
-	}
-
-	efhp_write_attachments_list (efhp, stream, &print_info, cancellable);
-
-	camel_stream_write_string (stream, "</body></html>", cancellable, NULL);
-}
-
-static void
-efhp_finalize (GObject *object)
-{
-	EMFormatHTMLPrint *efhp = EM_FORMAT_HTML_PRINT (object);
-
-	if (efhp->priv->original_formatter) {
-		g_object_unref (efhp->priv->original_formatter);
-		efhp->priv->original_formatter = NULL;
-	}
-
-	if (efhp->priv->top_level_puri) {
-		em_format_puri_free (efhp->priv->top_level_puri);
-		efhp->priv->top_level_puri = NULL;
-	}
-
-	if (efhp->priv->attachments) {
-		g_list_free (efhp->priv->attachments);
-		efhp->priv->attachments = NULL;
-	}
-
-	/* Chain up to parent's finalize() method. */
-	G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static gboolean
-efhp_is_inline (EMFormat *emf,
-                const gchar *part_id,
-                CamelMimePart *mime_part,
-                const EMFormatHandler *handle)
-{
-	/* When printing, inline any part that has a handler. */
-	return (handle != NULL);
-}
-
-static void
-efhp_set_orig_formatter (EMFormatHTMLPrint *efhp,
-                             EMFormat *formatter)
-{
-	EMFormat *emfp, *emfs;
-	EMFormatPURI *puri;
-	GHashTableIter iter;
-	gpointer key, value;
-
-	efhp->priv->original_formatter = g_object_ref (formatter);
-
-	emfp = EM_FORMAT (efhp);
-	emfs = EM_FORMAT (formatter);
-
-	emfp->mail_part_list = g_list_copy (emfs->mail_part_list);
-
-	/* Make a shallow copy of the table. This table will NOT destroy
-	 * the PURIs when free'd! */
-	if (emfp->mail_part_table)
-		g_hash_table_unref (emfp->mail_part_table);
-
-	emfp->mail_part_table = g_hash_table_new (g_str_hash, g_str_equal);
-	g_hash_table_iter_init (&iter, emfs->mail_part_table);
-	while (g_hash_table_iter_next (&iter, &key, &value))
-		g_hash_table_insert (emfp->mail_part_table, key, value);
-
-	if (emfs->folder)
-		emfp->folder = g_object_ref (emfs->folder);
-	emfp->message_uid = g_strdup (emfs->message_uid);
-	emfp->message = g_object_ref (emfs->message);
-
-	/* Add a generic PURI that will write a HTML layout
-	 * for all the parts */
-	puri = em_format_puri_new (EM_FORMAT (efhp),
-		sizeof (EMFormatPURI), NULL, "print_layout");
-	puri->write_func = efhp_write_print_layout;
-	puri->mime_type = g_strdup ("text/html");
-	em_format_add_puri (EM_FORMAT (efhp), puri);
-	efhp->priv->top_level_puri = puri;
-}
-
-static EMFormatHandler type_builtin_table[] = {
-        { (gchar *) "x-evolution/message/headers", 0, efhp_write_headers, },
-};
-
-static void
-efhp_builtin_init (EMFormatHTMLPrintClass *efhc)
-{
-	EMFormatClass *emfc;
-	gint ii;
-
-	emfc = (EMFormatClass *) efhc;
-
-	for (ii = 0; ii < G_N_ELEMENTS (type_builtin_table); ii++)
-		em_format_class_add_handler (
-			emfc, &type_builtin_table[ii]);
-}
-
-static void
-efhp_set_property (GObject *object,
-                   guint prop_id,
-                   const GValue *value,
-                   GParamSpec *pspec)
-{
-	switch (prop_id) {
-
-		case PROP_ORIGINAL_FORMATTER:
-			efhp_set_orig_formatter (
-				EM_FORMAT_HTML_PRINT (object),
-				(EMFormat *) g_value_get_object (value));
-			return;
-	}
-
-	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-}
-
-static void
-efhp_get_property (GObject *object,
-                   guint prop_id,
-                   GValue *value,
-                   GParamSpec *pspec)
-{
-	EMFormatHTMLPrintPrivate *priv;
-
-	priv = EM_FORMAT_HTML_PRINT (object)->priv;
-
-	switch (prop_id) {
-
-		case PROP_ORIGINAL_FORMATTER:
-			g_value_set_pointer (value,
-				priv->original_formatter);
-			return;
-	}
-
-	G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
-}
-
-static void
-em_format_html_print_base_init (EMFormatHTMLPrintClass *klass)
-{
-	efhp_builtin_init (klass);
-}
-
-static void
-em_format_html_print_class_init (EMFormatHTMLPrintClass *klass)
-{
-	GObjectClass *object_class;
-	EMFormatClass *format_class;
-
-	parent_class = g_type_class_peek_parent (klass);
-	g_type_class_add_private (klass, sizeof (EMFormatHTMLPrintPrivate));
-
-	object_class = G_OBJECT_CLASS (klass);
-	object_class->finalize = efhp_finalize;
-	object_class->set_property = efhp_set_property;
-	object_class->get_property = efhp_get_property;
-
-	format_class = EM_FORMAT_CLASS (klass);
-	format_class->is_inline = efhp_is_inline;
-
-	g_object_class_install_property (
-		object_class,
-		PROP_ORIGINAL_FORMATTER,
-		g_param_spec_object (
-			"original-formatter",
-			NULL,
-			NULL,
-			EM_TYPE_FORMAT,
-			G_PARAM_WRITABLE |
-			G_PARAM_CONSTRUCT_ONLY));
-}
-
-static void
-em_format_html_print_init (EMFormatHTMLPrint *efhp)
-{
-	efhp->priv = G_TYPE_INSTANCE_GET_PRIVATE (
-		efhp, EM_TYPE_FORMAT_HTML_PRINT, EMFormatHTMLPrintPrivate);
-
-	efhp->priv->attachments = NULL;
-	efhp->export_filename = NULL;
-}
-
-GType
-em_format_html_print_get_type (void)
-{
-	static GType type = 0;
-
-	if (G_UNLIKELY (type == 0)) {
-		static const GTypeInfo type_info = {
-			sizeof (EMFormatHTMLPrintClass),
-			(GBaseInitFunc) em_format_html_print_base_init,
-			(GBaseFinalizeFunc) NULL,
-			(GClassInitFunc) em_format_html_print_class_init,
-			(GClassFinalizeFunc) NULL,
-			NULL,  /* class_data */
-			sizeof (EMFormatHTMLPrint),
-			0,     /* n_preallocs */
-			(GInstanceInitFunc) em_format_html_print_init,
-			NULL   /* value_table */
-		};
-
-		type = g_type_register_static (
-			em_format_html_get_type(), "EMFormatHTMLPrint",
-			&type_info, 0);
-	}
-
-	return type;
-}
-
-EMFormatHTMLPrint *
-em_format_html_print_new (EMFormatHTML *source)
-{
-	EMFormatHTMLPrint *efhp;
-	CamelSession *session;
-
-	g_return_val_if_fail (EM_IS_FORMAT_HTML (source), NULL);
-
-	session = em_format_get_session (EM_FORMAT (source));
-
-	efhp = g_object_new (
-		EM_TYPE_FORMAT_HTML_PRINT,
-		"session", session,
-		"original-formatter", source,
-		NULL);
-
-	return efhp;
-}