WebKit port - port formatter and mail module

1 files changed, 771 insertions, 0 deletions

diff --git a/mail/e-mail-request.c b/mail/e-mail-request.c
new file mode 100644
index 0000000000..34f1845a3c
--- /dev/null
+++ b/mail/e-mail-request.c
@@ -0,0 +1,771 @@
+#define LIBSOUP_USE_UNSTABLE_REQUEST_API
+
+#include "e-mail-request.h"
+
+#include <libsoup/soup.h>
+#include <libsoup/soup-requester.h>
+#include <libsoup/soup-request-http.h>
+
+#include <glib/gi18n.h>
+#include <camel/camel.h>
+
+#include "em-format-html.h"
+
+#include <e-util/e-icon-factory.h>
+#include <e-util/e-util.h>
+
+#define d(x)
+#define dd(x)
+
+G_DEFINE_TYPE (EMailRequest, e_mail_request, SOUP_TYPE_REQUEST)
+
+struct _EMailRequestPrivate {
+	EMFormatHTML *efh;
+
+	CamelStream *output_stream;
+	EMFormatPURI *puri;
+	gchar *mime_type;
+
+	gint content_length;
+
+	GHashTable *uri_query;
+
+        gchar *ret_mime_type;
+};
+
+static void
+handle_mail_request (GSimpleAsyncResult *res,
+                     GObject *object,
+                     GCancellable *cancellable)
+{
+	EMailRequest *request = E_MAIL_REQUEST (object);
+	EMFormatHTML *efh = request->priv->efh;
+	EMFormat *emf = EM_FORMAT (efh);
+	GInputStream *stream;
+	GByteArray *ba;
+	gchar *part_id;
+	EMFormatWriterInfo info = {0};
+	gchar *val;
+
+	if (g_cancellable_is_cancelled (cancellable))
+		return;
+
+	if (request->priv->output_stream != NULL) {
+		g_object_unref (request->priv->output_stream);
+	}
+
+	request->priv->output_stream = camel_stream_mem_new ();
+
+	val = g_hash_table_lookup (request->priv->uri_query, "headers_collapsed");
+	if (val)
+		info.headers_collapsed = atoi (val);
+
+	val = g_hash_table_lookup (request->priv->uri_query, "headers_collapsable");
+	if (val)
+		info.headers_collapsable = atoi (val);
+
+	val = g_hash_table_lookup (request->priv->uri_query, "mode");
+	if (val)
+		info.mode = atoi (val);
+
+	part_id = g_hash_table_lookup (request->priv->uri_query, "part_id");
+	if (part_id) {
+                /* original part_id is owned by the GHashTable */
+		part_id = soup_uri_decode (part_id);
+		request->priv->puri = em_format_find_puri (emf, part_id);
+
+		if (request->priv->puri) {
+			em_format_puri_write (request->priv->puri,
+				request->priv->output_stream, &info, NULL);
+		} else {
+			g_warning ("Failed to lookup requested part '%s' - this should not happen!", part_id);
+		}
+
+		g_free (part_id);
+	} else {
+
+		em_format_write (emf, request->priv->output_stream, &info, NULL);
+	}
+
+	/* Convert the GString to GInputStream and send it back to WebKit */
+	ba = camel_stream_mem_get_byte_array (CAMEL_STREAM_MEM (request->priv->output_stream));
+	if (!ba->data) {
+		gchar *data = g_strdup_printf(_("Failed to load part '%s'"), part_id);
+		dd(printf("%s", data));
+		g_byte_array_append (ba, (guchar *) data, strlen (data));
+		g_free (data);
+	} else {
+		dd ({
+			gchar *d = g_strndup ((gchar *) ba->data, ba->len);
+                        printf("%s", d);
+			g_free (d);
+		});
+	}
+
+	stream = g_memory_input_stream_new_from_data (
+			(gchar *) ba->data, ba->len, NULL);
+	g_simple_async_result_set_op_res_gpointer (res, stream, NULL);
+}
+
+static void
+handle_file_request (GSimpleAsyncResult *res,
+                     GObject *object,
+                     GCancellable *cancellable)
+{
+	EMailRequest *request = E_MAIL_REQUEST (object);
+	SoupURI *uri;
+	GInputStream *stream;
+	gchar *contents;
+	gsize length;
+
+	if (g_cancellable_is_cancelled (cancellable))
+		return;
+
+	uri = soup_request_get_uri (SOUP_REQUEST (request));
+
+	if (g_file_get_contents (uri->path, &contents, &length, NULL)) {
+
+		request->priv->mime_type = g_content_type_guess (uri->path, NULL, 0, NULL);
+		request->priv->content_length = length;
+
+		stream = g_memory_input_stream_new_from_data (
+				contents, length, (GDestroyNotify) g_free);
+		g_simple_async_result_set_op_res_gpointer (res, stream, NULL);
+	}
+}
+
+struct http_request_async_data {
+        GMainLoop *loop;
+        GCancellable *cancellable;
+        CamelDataCache *cache;
+        gchar *cache_key;
+
+        GInputStream *stream;
+        CamelStream *cache_stream;
+        gchar *content_type;
+        goffset content_length;
+
+        gchar *buff;
+};
+
+static void
+http_request_write_to_cache (GInputStream *stream,
+                             GAsyncResult *res,
+                             struct http_request_async_data *data)
+{
+	GError *error;
+	gssize len;
+
+	error = NULL;
+	len = g_input_stream_read_finish (stream, res, &error);
+
+        /* Error while reading data */
+	if (len == -1) {
+                g_message ("Error while reading input stream: %s",
+                        error ? error->message : "Unknown error");
+		g_clear_error (&error);
+
+		g_main_loop_quit (data->loop);
+
+		if (data->buff)
+			g_free (data->buff);
+
+                /* Don't keep broken data in cache */
+                camel_data_cache_remove (data->cache, "http", data->cache_key, NULL);
+		return;
+	}
+
+        /* EOF */
+	if (len == 0) {
+		camel_stream_close (data->cache_stream, data->cancellable, NULL);
+
+		if (data->buff)
+			g_free (data->buff);
+
+		g_main_loop_quit (data->loop);
+		return;
+	}
+
+	if (!data->cache_stream) {
+
+		if (data->buff)
+			g_free (data->buff);
+
+		g_main_loop_quit (data->loop);
+		return;
+	}
+
+        /* Write chunk to cache and read another block of data. */
+	camel_stream_write (data->cache_stream, data->buff, len,
+		data->cancellable, NULL);
+
+	g_input_stream_read_async (stream, data->buff, 4096,
+		G_PRIORITY_DEFAULT, data->cancellable,
+		(GAsyncReadyCallback) http_request_write_to_cache, data);
+}
+
+static void
+http_request_finished (SoupRequest *request,
+                       GAsyncResult *res,
+                       struct http_request_async_data *data)
+{
+	GError *error;
+	SoupMessage *message;
+
+	error = NULL;
+	data->stream = soup_request_send_finish (request, res, &error);
+
+	if (!data->stream) {
+                g_warning("HTTP request failed: %s", error ? error->message: "Unknown error");
+		g_clear_error (&error);
+		g_main_loop_quit (data->loop);
+		return;
+	}
+
+	message = soup_request_http_get_message (SOUP_REQUEST_HTTP (request));
+	if (!SOUP_STATUS_IS_SUCCESSFUL (message->status_code)) {
+                g_warning ("HTTP request failed: HTTP code %d", message->status_code);
+		g_main_loop_quit (data->loop);
+		g_object_unref (message);
+		return;
+	}
+
+	g_object_unref (message);
+
+	data->content_length = soup_request_get_content_length (request);
+	data->content_type = g_strdup (soup_request_get_content_type (request));
+
+	if (!data->cache_stream) {
+		g_main_loop_quit (data->loop);
+		return;
+	}
+
+	data->buff = g_malloc (4096);
+	g_input_stream_read_async (data->stream, data->buff, 4096,
+		G_PRIORITY_DEFAULT, data->cancellable,
+		(GAsyncReadyCallback) http_request_write_to_cache, data);
+
+}
+
+static void
+handle_http_request (GSimpleAsyncResult *res,
+                     GObject *object,
+                     GCancellable *cancellable)
+{
+	EMailRequest *request = E_MAIL_REQUEST (object);
+	SoupURI *soup_uri;
+	gchar *evo_uri, *uri;
+	GInputStream *stream;
+	gboolean force_load_images = FALSE;
+	gchar *uri_md5;
+
+	const gchar *user_cache_dir;
+	CamelDataCache *cache;
+	CamelStream *cache_stream;
+
+	gssize len;
+	gchar *buff;
+
+	GHashTable *query;
+
+        /* Remove the __evo-mail query */
+	soup_uri = soup_request_get_uri (SOUP_REQUEST (request));
+	query = soup_form_decode (soup_uri->query);
+        g_hash_table_remove (query, "__evo-mail");
+
+        /* Remove __evo-load-images if present (and in such case set
+         * force_load_images to TRUE) */
+        force_load_images = g_hash_table_remove (query, "__evo-load-images");
+
+	soup_uri_set_query_from_form (soup_uri, query);
+	g_hash_table_unref (query);
+
+	evo_uri = soup_uri_to_string (soup_uri, FALSE);
+
+        /* Remove the "evo-" prefix from scheme */
+	if (evo_uri && (strlen (evo_uri) > 5)) {
+		uri = g_strdup (&evo_uri[4]);
+		g_free (evo_uri);
+	}
+
+	g_return_if_fail (uri && *uri);
+
+	/* Use MD5 hash of the URI as a filname of the resourec cache file.
+	 * We were previously using the URI as a filename but the URI is
+	 * sometimes too long for a filename. */
+	uri_md5 = g_compute_checksum_for_string (G_CHECKSUM_MD5, uri, -1);
+
+        /* Open Evolution's cache */
+	user_cache_dir = e_get_user_cache_dir ();
+	cache = camel_data_cache_new (user_cache_dir, NULL);
+	if (cache) {
+		camel_data_cache_set_expire_age (cache, 24 * 60 * 60);
+		camel_data_cache_set_expire_access (cache, 2 * 60 * 60);
+	}
+
+        /* Found item in cache! */
+        cache_stream = camel_data_cache_get (cache, "http", uri_md5, NULL);
+	if (cache_stream) {
+
+		stream = g_memory_input_stream_new ();
+
+		request->priv->content_length = 0;
+
+		buff = g_malloc (4096);
+		while ((len = camel_stream_read (cache_stream, buff, 4096,
+				cancellable, NULL)) > 0) {
+
+			g_memory_input_stream_add_data (G_MEMORY_INPUT_STREAM (stream),
+				buff, len, g_free);
+			request->priv->content_length += len;
+
+			buff = g_malloc (4096);
+		}
+
+		g_object_unref (cache_stream);
+
+                /* When succesfully read some data from cache then
+                 * get mimetype and return the stream to WebKit.
+                 * Otherwise try to fetch the resource again from the network. */
+		if ((len != -1) && (request->priv->content_length > 0)) {
+			GFile *file;
+			GFileInfo *info;
+			gchar *path;
+
+                        path = camel_data_cache_get_filename (cache, "http", uri_md5, NULL);
+			file = g_file_new_for_path (path);
+			info = g_file_query_info (file, G_FILE_ATTRIBUTE_STANDARD_CONTENT_TYPE,
+					0, cancellable, NULL);
+
+			request->priv->mime_type = g_strdup (
+				g_file_info_get_content_type (info));
+
+                        d(printf ("'%s' found in cache (%d bytes, %s)\n",
+				uri, request->priv->content_length,
+				request->priv->mime_type));
+
+			g_object_unref (info);
+			g_object_unref (file);
+			g_free (path);
+
+                        /* Set result and quit the thread */
+			g_simple_async_result_set_op_res_gpointer (res, stream, NULL);
+
+			goto cleanup;
+		} else {
+                        d(printf("Failed to load '%s' from cache.\n", uri));
+		}
+	}
+
+        /* Item not found in cache, but image loading policy allows us to fetch
+         * it from the interwebs */
+	if (force_load_images || em_format_html_can_load_images (request->priv->efh)) {
+
+		SoupRequester *requester;
+		SoupRequest *http_request;
+		SoupSession *session;
+		GMainContext *context;
+		GError *error;
+
+		struct http_request_async_data data = { 0 };
+
+		context = g_main_context_get_thread_default ();
+		session = soup_session_async_new_with_options (
+					SOUP_SESSION_ASYNC_CONTEXT, context, NULL);
+
+		requester = soup_requester_new ();
+		soup_session_add_feature (session, SOUP_SESSION_FEATURE (requester));
+
+		http_request = soup_requester_request (requester, uri, NULL);
+
+		error = NULL;
+		data.loop = g_main_loop_new (context, TRUE);
+		data.cancellable = cancellable;
+		data.cache = cache;
+		data.cache_key = uri_md5;
+                data.cache_stream = camel_data_cache_add (cache, "http", uri_md5, &error);
+
+		if (!data.cache_stream) {
+			g_warning ("Failed to create cache file for '%s': %s",
+				uri, error ? error->message : "Unknown error");
+			g_clear_error (&error);
+		}
+
+                /* Send the request and waint in mainloop until it's finished
+                 * and copied to cache */
+                d(printf(" '%s' not in cache, sending HTTP request\n", uri));
+		soup_request_send_async (http_request, cancellable,
+			(GAsyncReadyCallback) http_request_finished, &data);
+
+		g_main_loop_run (data.loop);
+                d(printf (" '%s' fetched from internet and (hopefully) stored in"
+                          " cache\n", uri));
+
+		g_main_loop_unref (data.loop);
+
+		g_object_unref (session);
+
+		g_object_unref (http_request);
+		g_object_unref (requester);
+
+		stream = data.stream;
+		if (!stream)
+			goto cleanup;
+
+		request->priv->content_length = data.content_length;
+		request->priv->mime_type = data.content_type;
+
+		g_simple_async_result_set_op_res_gpointer (res, stream, NULL);
+
+		goto cleanup;
+
+	}
+
+cleanup:
+	g_free (uri);
+	g_free (uri_md5);
+}
+
+static void
+handle_stock_request (GSimpleAsyncResult *res,
+                      GObject *object,
+                      GCancellable *cancellable)
+{
+	EMailRequest *request;
+	SoupURI *uri;
+	GtkIconTheme *icon_theme;
+	GtkIconInfo *icon_info;
+	const gchar *file;
+	gchar *a_size;
+	gssize size;
+	gchar *buffer;
+	gsize buff_len;
+	GtkStyleContext *context;
+	GtkWidgetPath *path;
+	GtkIconSet *set;
+
+	request = E_MAIL_REQUEST (object);
+	uri = soup_request_get_uri (SOUP_REQUEST (object));
+
+	if (request->priv->uri_query) {
+                a_size = g_hash_table_lookup (request->priv->uri_query, "size");
+	} else {
+		a_size = NULL;
+	}
+
+	if (!a_size) {
+		size = GTK_ICON_SIZE_BUTTON;
+	} else {
+		size = atoi (a_size);
+	}
+
+        /* Try style context first */
+	context = gtk_style_context_new ();
+	path = gtk_widget_path_new ();
+	gtk_widget_path_append_type (path, GTK_TYPE_WINDOW);
+	gtk_widget_path_append_type (path, GTK_TYPE_BUTTON);
+	gtk_style_context_set_path (context, path);
+
+	set = gtk_style_context_lookup_icon_set (context, uri->host);
+	if (!set) {
+                /* Fallback to icon theme */
+		icon_theme = gtk_icon_theme_get_default ();
+		icon_info = gtk_icon_theme_lookup_icon (
+				icon_theme, uri->host, size,
+				GTK_ICON_LOOKUP_USE_BUILTIN);
+		if (!icon_info) {
+			gtk_widget_path_free (path);
+			g_object_unref (context);
+			return;
+		}
+
+		file = gtk_icon_info_get_filename (icon_info);
+		buffer = NULL;
+		if (file) {
+			if (g_file_get_contents (file, &buffer, &buff_len, NULL)) {
+
+				request->priv->mime_type =
+					g_content_type_guess (file, NULL, 0, NULL);
+				request->priv->content_length = buff_len;
+			}
+
+		} else {
+			GdkPixbuf *pixbuf;
+
+			pixbuf = gtk_icon_info_get_builtin_pixbuf (icon_info);
+			if (pixbuf) {
+				gdk_pixbuf_save_to_buffer (
+					pixbuf, &buffer,
+                                        &buff_len, "png", NULL, NULL);
+
+                                request->priv->mime_type = g_strdup("image/png");
+				request->priv->content_length = buff_len;
+
+				g_object_unref (pixbuf);
+			}
+		}
+
+		gtk_icon_info_free (icon_info);
+
+	} else {
+		GdkPixbuf *pixbuf;
+
+		pixbuf = gtk_icon_set_render_icon_pixbuf (set, context, size);
+				gdk_pixbuf_save_to_buffer (
+					pixbuf, &buffer,
+                                        &buff_len, "png", NULL, NULL);
+
+                request->priv->mime_type = g_strdup("image/png");
+		request->priv->content_length = buff_len;
+
+		g_object_unref (pixbuf);
+	}
+
+	if (buffer) {
+		GInputStream *stream;
+		stream = g_memory_input_stream_new_from_data (
+				buffer, buff_len, (GDestroyNotify) g_free);
+		g_simple_async_result_set_op_res_gpointer (res, stream, NULL);
+	}
+
+	gtk_widget_path_free (path);
+	g_object_unref (context);
+
+}
+
+static void
+e_mail_request_init (EMailRequest *request)
+{
+	request->priv = G_TYPE_INSTANCE_GET_PRIVATE (
+		request, E_TYPE_MAIL_REQUEST, EMailRequestPrivate);
+
+	request->priv->efh = NULL;
+	request->priv->output_stream = NULL;
+	request->priv->uri_query = NULL;
+	request->priv->puri = NULL;
+	request->priv->mime_type = NULL;
+	request->priv->content_length = 0;
+}
+
+static void
+mail_request_finalize (GObject *object)
+{
+	EMailRequest *request = E_MAIL_REQUEST (object);
+
+	if (request->priv->output_stream) {
+		g_object_unref (request->priv->output_stream);
+		request->priv->output_stream = NULL;
+	}
+
+	if (request->priv->mime_type) {
+		g_free (request->priv->mime_type);
+		request->priv->mime_type = NULL;
+	}
+
+	if (request->priv->uri_query) {
+		g_hash_table_destroy (request->priv->uri_query);
+		request->priv->uri_query = NULL;
+	}
+
+	if (request->priv->ret_mime_type) {
+		g_free (request->priv->ret_mime_type);
+		request->priv->ret_mime_type = NULL;
+	}
+
+	G_OBJECT_CLASS (e_mail_request_parent_class)->finalize (object);
+}
+
+static gboolean
+mail_request_check_uri (SoupRequest *request,
+		       SoupURI *uri,
+		       GError **error)
+{
+	return ((strcmp (uri->scheme, "mail") == 0) ||
+		(strcmp (uri->scheme, "evo-file") == 0) ||
+                (strcmp (uri->scheme, "evo-http") == 0) ||
+                (strcmp (uri->scheme, "evo-https") == 0) ||
+                (strcmp (uri->scheme, "gtk-stock") == 0));
+}
+
+static void
+mail_request_send_async (SoupRequest *request,
+                         GCancellable *cancellable,
+                         GAsyncReadyCallback callback,
+                         gpointer user_data)
+{
+	SoupSession *session;
+	EMailRequest *emr = E_MAIL_REQUEST (request);
+	GSimpleAsyncResult *result;
+	SoupURI *uri;
+	GHashTable *formatters;
+
+	session = soup_request_get_session (request);
+	uri = soup_request_get_uri (request);
+
+	d(printf("received request for %s\n", soup_uri_to_string (uri, FALSE)));
+
+        /* WebKit won't allow us to load data through local file:// protocol
+         * when using "remote" mail:// protocol, so we have evo-file://
+         * which WebKit thinks it's remote, but in fact it behaves like
+         * oridnary file:// */
+        if (g_strcmp0 (uri->scheme, "evo-file") == 0) {
+
+		result = g_simple_async_result_new (G_OBJECT (request), callback,
+				user_data, mail_request_send_async);
+		g_simple_async_result_run_in_thread (result, handle_file_request,
+				G_PRIORITY_DEFAULT, cancellable);
+
+		return;
+	}
+
+	if (uri->query) {
+		emr->priv->uri_query = soup_form_decode (uri->query);
+	} else {
+		emr->priv->uri_query = NULL;
+	}
+
+        formatters = g_object_get_data (G_OBJECT (session), "formatters");
+					g_return_if_fail (formatters != NULL);
+
+        /* Get HTML content of given PURI part */
+        if (g_strcmp0 (uri->scheme, "mail") == 0) {
+		gchar *uri_str;
+
+                uri_str = g_strdup_printf ("%s://%s%s", uri->scheme, uri->host, uri->path);
+		emr->priv->efh = g_hash_table_lookup (formatters, uri_str);
+		g_free (uri_str);
+
+		g_return_if_fail (emr->priv->efh);
+
+		result = g_simple_async_result_new (G_OBJECT (request), callback,
+				user_data, mail_request_send_async);
+		g_simple_async_result_run_in_thread (result, handle_mail_request,
+				G_PRIORITY_DEFAULT, cancellable);
+
+		return;
+
+        /* For http and https requests we have this evo-http(s) protocol.
+	 * We first try to lookup the data in local cache and when not found,
+	 * we send standard  http(s) request to fetch them. But only when image 
+	 * loading policy allows us. */
+	} else if ((g_strcmp0 (uri->scheme, "evo-http") == 0) ||
+                   (g_strcmp0 (uri->scheme, "evo-https") == 0)) {
+
+		gchar *mail_uri;
+		const gchar *enc = g_hash_table_lookup (emr->priv->uri_query,
+                                        "__evo-mail");
+
+		g_return_if_fail (enc && *enc);
+
+		mail_uri = soup_uri_decode (enc);
+
+		emr->priv->efh = g_hash_table_lookup (formatters, mail_uri);
+		g_free (mail_uri);
+
+		g_return_if_fail (emr->priv->efh);
+
+		result = g_simple_async_result_new (G_OBJECT (request), callback,
+				user_data, mail_request_send_async);
+		g_simple_async_result_run_in_thread (result, handle_http_request,
+				G_PRIORITY_DEFAULT, cancellable);
+
+		return;
+
+        } else if ((g_strcmp0 (uri->scheme, "gtk-stock") == 0)) {
+
+		result = g_simple_async_result_new (G_OBJECT (request), callback,
+				user_data, mail_request_send_async);
+		g_simple_async_result_run_in_thread (result, handle_stock_request,
+				G_PRIORITY_DEFAULT, cancellable);
+
+		return;
+	}
+}
+
+static GInputStream *
+mail_request_send_finish (SoupRequest *request,
+                          GAsyncResult *result,
+                          GError **error)
+{
+	GInputStream *stream;
+
+	stream = g_simple_async_result_get_op_res_gpointer (G_SIMPLE_ASYNC_RESULT (result));
+	g_object_unref (result);
+
+        /* Reset the stream before passing it back to webkit */
+	if (stream && G_IS_SEEKABLE (stream))
+		g_seekable_seek (G_SEEKABLE (stream), 0, G_SEEK_SET, NULL, NULL);
+	else /* We must always return something */
+		stream = g_memory_input_stream_new ();
+
+	return stream;
+}
+
+static goffset
+mail_request_get_content_length (SoupRequest *request)
+{
+	EMailRequest *emr = E_MAIL_REQUEST (request);
+	GByteArray *ba;
+	gint content_length = 0;
+
+	if (emr->priv->content_length > 0)
+		content_length = emr->priv->content_length;
+	else if (emr->priv->output_stream) {
+		ba = camel_stream_mem_get_byte_array (CAMEL_STREAM_MEM (emr->priv->output_stream));
+		if (ba) {
+			content_length = ba->len;
+		}
+	}
+
+	d(printf("Content-Length: %d bytes\n", content_length));
+	return content_length;
+}
+
+static const gchar *
+mail_request_get_content_type (SoupRequest *request)
+{
+	EMailRequest *emr = E_MAIL_REQUEST (request);
+	gchar *mime_type;
+
+	if (emr->priv->mime_type) {
+		mime_type = g_strdup (emr->priv->mime_type);
+	} else if (!emr->priv->puri) {
+		mime_type = g_strdup ("text/html");
+	} else if (!emr->priv->puri->mime_type) {
+		CamelContentType *ct = camel_mime_part_get_content_type (emr->priv->puri->part);
+		mime_type = camel_content_type_simple (ct);
+	} else {
+		mime_type = g_strdup (emr->priv->puri->mime_type);
+	}
+
+	if (g_strcmp0 (mime_type, "text/html") == 0) {
+                emr->priv->ret_mime_type = g_strconcat (mime_type, "; charset=\"UTF-8\"", NULL);
+		g_free (mime_type);
+	} else {
+		emr->priv->ret_mime_type = mime_type;
+	}
+
+        d(printf("Content-Type: %s\n", emr->priv->ret_mime_type));
+
+	return emr->priv->ret_mime_type;
+}
+
+static const char *data_schemes[] = { "mail", "evo-file", "evo-http", "evo-https", "gtk-stock", NULL };
+
+static void
+e_mail_request_class_init (EMailRequestClass *class)
+{
+	GObjectClass *object_class = G_OBJECT_CLASS (class);
+	SoupRequestClass *request_class = SOUP_REQUEST_CLASS (class);
+
+	g_type_class_add_private (class, sizeof (EMailRequestPrivate));
+
+	object_class->finalize = mail_request_finalize;
+
+	request_class->schemes = data_schemes;
+	request_class->send_async = mail_request_send_async;
+	request_class->send_finish = mail_request_send_finish;
+	request_class->get_content_type = mail_request_get_content_type;
+	request_class->get_content_length = mail_request_get_content_length;
+	request_class->check_uri = mail_request_check_uri;
+}