Elm and Pine importers

Pine compiles and is tested
Elm is not compiled yet, as I have not tested it.

svn path=/trunk/; revision=8833

1 files changed, 391 insertions, 0 deletions

diff --git a/mail/importers/elm-importer.c b/mail/importers/elm-importer.c
new file mode 100644
index 0000000000..426120a1b1
--- /dev/null
+++ b/mail/importers/elm-importer.c
@@ -0,0 +1,391 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* elm-importer.c
+ * 
+ * Authors: 
+ *    Iain Holmes  <iain@ximian.com>
+ *
+ * Copyright 2001 Ximian, Inc. (http://www.ximian.com)
+ *
+ * This program is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU General Public License as 
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * 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 General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+
+#include <glib.h>
+#include <gnome.h>
+
+#include <bonobo/bonobo-object.h>
+#include <bonobo/bonobo-generic-factory.h>
+#include <camel/camel-mime-message.h>
+#include <camel/camel-mime-part.h>
+#include <camel/camel-exception.h>
+
+#include <importer/evolution-intelligent-importer.h>
+#include <importer/GNOME_Evolution_Importer.h>
+#include "mail-importer.h"
+#include "mail-tools.h"
+
+extern char *evolution_dir;
+
+#define ELM_INTELLIGENT_IMPORTER_IID "OAFIID:GNOME_Evolution_Mail_Elm_Intelligent_Importer_Factory"
+#define KEY "elm-mail-imported"
+
+/*#define SUPER_IMPORTER_DEBUG*/
+#ifdef SUPER_IMPORTER_DEBUG
+#define d(x) x
+#else
+#define d(x)
+#endif
+
+typedef struct {
+	MailImporter importer;
+	GList *dir_list;
+
+	int num;
+	CamelMimeParser *mp;
+	BonoboListener *listener;
+} ElmImporter;
+
+typedef struct {
+	char *parent;
+	char *foldername;
+	char *path;
+} ElmFolder;
+
+static gboolean
+elm_is_mbox (const char *filename)
+{
+	char sig[5];
+	int fd;
+	
+	fd = open (filename, O_RDONLY);
+	if (read (fd, sig, 5) != 5) {
+		close (fd);
+		return FALSE;
+	}
+
+	close (fd);
+	if (strncmp (sig, "From ", 5) != 0) {
+		return FALSE;
+	}
+
+	return TRUE;
+}
+
+static gboolean
+elm_import_mbox (CamelFolder *folder,
+		 const char *filename)
+{
+	gboolean done = FALSE;
+	CamelException *ex;
+	CamelMimeParser *mp;
+	int fd, n = 0;
+
+	fd = open (filename, O_RDONLY);
+	if (fd == -1) {
+		g_warning ("Cannot open %s", filename);
+		return FALSE;
+	}
+	
+	camel_object_ref (CAMEL_OBJECT (folder));
+	camel_folder_freeze (folder);
+
+	ex = camel_exception_new ();
+	mp = camel_mime_parser_new ();
+	camel_mime_parser_scan_from (mp, TRUE);
+	if (camel_mime_parser_init_with_fd (mp, fd) == -1) {
+		g_warning ("Unable to process file %s", filename);
+		camel_object_unref (CAMEL_OBJECT (mp));
+		camel_folder_thaw (folder);
+		camel_object_unref (CAMEL_OBJECT (folder));
+		return FALSE;
+	}
+
+	while (camel_mime_parser_step (mp, 0, 0) == HSCAN_FROM) {
+		/* Import the next message */
+		CamelMimeMessage *msg;
+		CamelMessageInfo *info;
+
+		msg = camel_mime_message_new ();
+		if (camel_mime_part_construct_from_parser (CAMEL_MIME_PART (msg),
+							   mp) == -1) {
+			g_warning ("Failed message %d", n);
+			camel_object_unref (CAMEL_OBJECT (msg));
+			done = TRUE;
+		}
+
+		info = g_new0 (CamelMessageInfo, 1);
+		camel_folder_append_message (folder, msg, info, ex);
+		g_free (info);
+		camel_object_unref (CAMEL_OBJECT (msg));
+		if (camel_exception_is_set (ex)) {
+			g_warning ("Failed message %d", n);
+			done = TRUE;
+		}
+
+		if (!done) {
+			n++;
+			camel_mime_parser_step (mp, 0, 0);
+		}
+	}
+
+	camel_folder_sync (folder, FALSE, ex);
+	camel_folder_thaw (folder);
+	camel_object_unref (CAMEL_OBJECT (folder));
+	done = TRUE;
+
+	camel_exception_free (ex);
+	return done;
+}
+
+static void
+elm_import_file (ElmImporter *importer,
+		 const char *path,
+		 const char *fullpath)
+{
+	char *protocol;
+	CamelException *ex;
+	CamelFolder *folder;
+
+	g_warning ("Importing %s into %s", path, fullpath);
+	protocol = g_strconcat ("file://", fullpath, NULL);
+	ex = camel_exception_new ();
+	folder = mail_tool_uri_to_folder (protocol, ex);
+	g_free (protocol);
+
+	if (camel_exception_is_set (ex)) {
+		camel_exception_free (ex);
+		return;
+	}
+	camel_exception_free (ex);
+
+	if (folder == NULL) {
+		return;
+	}
+
+	elm_import_mbox (folder, path);
+}
+
+static gboolean
+elm_can_import (EvolutionIntelligentImporter *ii,
+		void *closure)
+{
+	ElmImporter *importer = closure;
+	FILE *prefs_handle;
+	char *key, *maildir;
+	gboolean exists;
+
+	/* Already imported */
+	key = g_strdup_printf ("=%s/config/Mail=/importers/", evolution_dir);
+	gnome_config_push_prefix (key);
+	g_free (key);
+
+	if (gnome_config_get_bool (KEY) == TRUE) {
+		gnome_config_pop_prefix ();
+		return FALSE;
+	}
+	gnome_config_pop_prefix ();
+
+	maildir = gnome_util_prepend_user_home ("Mail");
+	exists = g_file_exists (maildir);
+	g_free (maildir);
+
+	return exists;
+}
+
+static void
+scan_dir (ElmImporter *importer,
+	  const char *dirname,
+	  const char *orig_parent)
+{
+	DIR *maildir;
+	struct stat buf;
+	struct dirent *current;
+	
+	maildir = opendir (dirname);
+	if (maildir == NULL) {
+		g_warning ("Could not open %s\nopendir returned: %s",
+			   dirname, g_strerror (errno));
+		return;
+	}
+	
+	current = readdir (maildir);
+	while (current) {
+		ElmFolder *pf;
+		char *fullname;
+		
+		/* Ignore . and .. */
+		if (current->d_name[0] == '.') {
+			if (current->d_name[1] == '\0' ||
+			    (current->d_name[1] == '.' && current->d_name[2] == '\0')) {
+				current = readdir (maildir);
+				continue;
+			}
+		}
+		
+		fullname = g_concat_dir_and_file (dirname, current->d_name);
+		if (stat (fullname, &buf) == -1) {
+			g_warning ("Could not stat %s\nstat returned: %s",
+				   fullname, g_strerror (errno));
+			current = readdir (maildir);
+			g_free (fullname);
+			continue;
+		}
+		
+		if (S_ISREG (buf.st_mode)) {
+			pf = g_new (ElmFolder, 1);
+			pf->path = g_strdup (fullname);
+			pf->parent = g_strdup (orig_parent);
+			pf->foldername = g_strdup (current->d_name);
+			importer->dir_list = g_list_append (importer->dir_list, pf);
+		} else if (S_ISDIR (buf.st_mode)) {
+			char *subdir;
+
+			pf = g_new (ElmFolder, 1);
+			pf->path = NULL;
+			pf->parent = g_strdup (orig_parent);
+			pf->foldername = g_strdup (current->d_name);
+			importer->dir_list = g_list_append (importer->dir_list, pf);
+
+			subdir = g_concat_dir_and_file (orig_parent, current->d_name);
+			scan_dir (importer, fullname, subdir);
+			g_free (subdir);
+		}
+		
+		g_free (fullname);
+		current = readdir (maildir);
+	}
+}
+
+static void
+folder_created_cb (BonoboListener *listener,
+		   const char *event_name,
+		   const BonoboArg *event_data,
+		   CORBA_Environment *ev,
+		   ElmImporter *importer)
+{
+	ElmFolder *folder;
+	GList *l;
+	GNOME_Evolution_Storage_FolderResult *result;
+	char *fullpath;
+
+	if (strcmp (event_name, "evolution-shell:folder_created") != 0) {
+		return; /* Unknown event notification */
+	}
+
+	result = event_data->_value;
+	fullpath = result->path;
+
+	l = importer->dir_list;
+	importer->dir_list = g_list_remove_link (importer->dir_list, l);
+	folder = l->data;
+	g_list_free_1 (l);
+
+	/* We got the folder, so try to import the file into it. */
+	if (folder->path != NULL && elm_is_mbox (folder->path)) {
+		elm_import_file (importer, folder->path, fullpath);
+	}
+
+	g_free (folder->path);
+	g_free (folder->parent);
+	g_free (folder->foldername);
+	g_free (folder);
+
+	if (importer->dir_list) {
+		/* Do the next in the list */
+		folder = importer->dir_list->data;
+		mail_importer_create_folder (folder->parent, folder->foldername,
+					     NULL, importer->listener);
+	}
+}
+
+static void
+elm_create_structure (EvolutionIntelligentImporter *ii,
+		      void *closure)
+{
+	ElmFolder *folder;
+	ElmImporter *importer = closure;
+	char *maildir, *key;
+
+	maildir = gnome_util_prepend_user_home ("Mail");
+	scan_dir (importer, maildir, "/");
+	g_free (maildir);
+
+	if (importer->dir_list == NULL)
+		return;
+
+	folder = importer->dir_list->data;
+	mail_importer_create_folder (folder->parent, folder->foldername, NULL,
+				     importer->listener);
+
+	key = g_strdup_printf ("=%s/config/Mail=/importers/", evolution_dir);
+	gnome_config_push_prefix (key);
+	g_free (key);
+	
+	gnome_config_set_bool (KEY, TRUE);
+	gnome_config_pop_prefix ();
+	
+	gnome_config_sync ();
+	gnome_config_drop_all ();
+}
+
+static BonoboObject *
+elm_factory_fn (BonoboGenericFactory *_factory,
+		void *closure)
+{
+	EvolutionIntelligentImporter *importer;
+	ElmImporter *elm;
+	char *message = N_("Evolution has found Elm mail files.\n"
+			   "Would you like to import them into Evolution?");
+
+	elm = g_new0 (ElmImporter, 1);
+	elm->listener = bonobo_listener_new (NULL, NULL);
+	gtk_signal_connect (GTK_OBJECT (elm->listener), "event_notify",
+			    GTK_SIGNAL_FUNC (folder_created_cb), elm);
+
+	importer = evolution_intelligent_importer_new (elm_can_import,
+						       elm_create_structure,
+						       _("Elm mail"),
+						       _(message), elm);
+
+	return BONOBO_OBJECT (importer);
+}
+
+/* Entry point */
+void
+mail_importer_module_init (void)
+{
+	static gboolean initialised = FALSE;
+	BonoboGenericFactory *factory;
+
+	if (initialised == TRUE)
+		return;
+
+	factory = bonobo_generic_factory_new (ELM_INTELLIGENT_IMPORTER_IID,
+					      elm_factory_fn, NULL);
+	if (factory == NULL)
+		g_warning ("Could not initialise Elm Intelligent Mail Importer.");
+	initialised = TRUE;
+}