git.maemo.org Git - modest/blob - src/modest-formatter.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <glib/gi18n.h>
  31 #include <string.h>
  32 #include <tny-header.h>
  33 #include <tny-simple-list.h>
  34 #include <tny-gtk-text-buffer-stream.h>
  35 #include <tny-camel-stream.h>
  36 #include <camel/camel-stream-mem.h>
  37 #include "modest-formatter.h"
  38 #include "modest-text-utils.h"
  39 #include "modest-tny-platform-factory.h"
  40 #include <modest-runtime.h>
  41
  42 typedef struct _ModestFormatterPrivate ModestFormatterPrivate;
  43 struct _ModestFormatterPrivate {
  44         gchar *content_type;
  45         gchar *signature;
  46 };
  47 #define MODEST_FORMATTER_GET_PRIVATE(o)  (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  48                                           MODEST_TYPE_FORMATTER, \
  49                                           ModestFormatterPrivate))
  50
  51 static GObjectClass *parent_class = NULL;
  52
  53 typedef gchar* FormatterFunc (ModestFormatter *self, const gchar *text, TnyHeader *header, GList *attachments);
  54
  55 static TnyMsg *modest_formatter_do (ModestFormatter *self, TnyMimePart *body,  TnyHeader *header,
  56                                     FormatterFunc func, GList *attachments);
  57
  58 static gchar*  modest_formatter_wrapper_cite   (ModestFormatter *self, const gchar *text,
  59                                                 TnyHeader *header, GList *attachments);
  60 static gchar*  modest_formatter_wrapper_quote  (ModestFormatter *self, const gchar *text,
  61                                                 TnyHeader *header, GList *attachments);
  62 static gchar*  modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text,
  63                                                 TnyHeader *header, GList *attachments);
  64
  65 static gchar *
  66 extract_text (ModestFormatter *self, TnyMimePart *body)
  67 {
  68         TnyStream *stream;
  69         GtkTextBuffer *buf;
  70         GtkTextIter start, end;
  71         gchar *text, *converted_text;
  72         ModestFormatterPrivate *priv;
  73
  74         buf = gtk_text_buffer_new (NULL);
  75         stream = TNY_STREAM (tny_gtk_text_buffer_stream_new (buf));
  76         tny_stream_reset (stream);
  77         tny_mime_part_decode_to_stream (body, stream);
  78         tny_stream_reset (stream);
  79
  80         g_object_unref (G_OBJECT(stream));
  81
  82         gtk_text_buffer_get_bounds (buf, &start, &end);
  83         text = gtk_text_buffer_get_text (buf, &start, &end, FALSE);
  84         g_object_unref (G_OBJECT(buf));
  85
  86         /* Convert to desired content type if needed */
  87         priv = MODEST_FORMATTER_GET_PRIVATE (self);
  88
  89         if (strcmp (tny_mime_part_get_content_type (body), priv->content_type) == 0) {
  90                 if (!strcmp (priv->content_type, "text/html"))
  91                         converted_text = modest_text_utils_convert_to_html  (text);
  92                 else
  93                         converted_text = g_strdup (text);
  94
  95                 g_free (text);
  96                 text = converted_text;
  97         }
  98         return text;
  99 }
 100
 101 static void
 102 construct_from_text (TnyMimePart *part,
 103                      const gchar *text,
 104                      const gchar *content_type)
 105 {
 106         TnyStream *text_body_stream;
 107
 108         /* Create the stream */
 109         text_body_stream = TNY_STREAM (tny_camel_stream_new
 110                                        (camel_stream_mem_new_with_buffer
 111                                         (text, strlen(text))));
 112
 113         /* Construct MIME part */
 114         tny_stream_reset (text_body_stream);
 115         tny_mime_part_construct_from_stream (part, text_body_stream, content_type);
 116         tny_stream_reset (text_body_stream);
 117
 118         /* Clean */
 119         g_object_unref (G_OBJECT (text_body_stream));
 120 }
 121
 122 static TnyMsg *
 123 modest_formatter_do (ModestFormatter *self, TnyMimePart *body, TnyHeader *header, FormatterFunc func,
 124                      GList *attachments)
 125 {
 126         TnyMsg *new_msg = NULL;
 127         gchar *body_text = NULL, *txt = NULL;
 128         ModestFormatterPrivate *priv;
 129         TnyMimePart *body_part = NULL;
 130
 131         g_return_val_if_fail (self, NULL);
 132         g_return_val_if_fail (header, NULL);
 133         g_return_val_if_fail (func, NULL);
 134
 135         /* Build new part */
 136         new_msg = modest_formatter_create_message (self, TRUE, attachments != NULL);
 137         body_part = modest_formatter_create_body_part (self, new_msg);
 138
 139         if (body)
 140                 body_text = extract_text (self, body);
 141         else
 142                 body_text = g_strdup ("");
 143
 144         txt = (gchar *) func (self, (const gchar*) body_text, header, attachments);
 145         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 146         construct_from_text (TNY_MIME_PART (body_part), (const gchar*) txt, priv->content_type);
 147         g_object_unref (body_part);
 148
 149         /* Clean */
 150         g_free (body_text);
 151         g_free (txt);
 152
 153         return new_msg;
 154 }
 155
 156 TnyMsg *
 157 modest_formatter_cite (ModestFormatter *self, TnyMimePart *body, TnyHeader *header)
 158 {
 159         return modest_formatter_do (self, body, header, modest_formatter_wrapper_cite, NULL);
 160 }
 161
 162 TnyMsg *
 163 modest_formatter_quote (ModestFormatter *self, TnyMimePart *body, TnyHeader *header, GList *attachments)
 164 {
 165         return modest_formatter_do (self, body, header, modest_formatter_wrapper_quote, attachments);
 166 }
 167
 168 TnyMsg *
 169 modest_formatter_inline (ModestFormatter *self, TnyMimePart *body, TnyHeader *header, GList *attachments)
 170 {
 171         return modest_formatter_do (self, body, header, modest_formatter_wrapper_inline, attachments);
 172 }
 173
 174 TnyMsg *
 175 modest_formatter_attach (ModestFormatter *self, TnyMsg *msg, TnyHeader *header)
 176 {
 177         TnyMsg *new_msg = NULL;
 178         TnyMimePart *body_part = NULL;
 179         ModestFormatterPrivate *priv;
 180         TnyPlatformFactory *fact;
 181
 182         fact = modest_runtime_get_platform_factory ();
 183         /* Build new part */
 184         new_msg     = modest_formatter_create_message (self, TRUE, TRUE);
 185         body_part = modest_formatter_create_body_part (self, new_msg);
 186
 187         /* Create the two parts */
 188         priv = MODEST_FORMATTER_GET_PRIVATE (self);
 189         construct_from_text (body_part, "", priv->content_type);
 190         g_object_unref (body_part);
 191
 192         /* Add parts */
 193         tny_mime_part_add_part (TNY_MIME_PART (new_msg), TNY_MIME_PART (msg));
 194
 195         return new_msg;
 196 }
 197
 198 ModestFormatter*
 199 modest_formatter_new (const gchar *content_type, const gchar *signature)
 200 {
 201         ModestFormatter *formatter;
 202         ModestFormatterPrivate *priv;
 203
 204         formatter = g_object_new (MODEST_TYPE_FORMATTER, NULL);
 205         priv = MODEST_FORMATTER_GET_PRIVATE (formatter);
 206         priv->content_type = g_strdup (content_type);
 207         priv->signature = g_strdup (signature);
 208
 209         return formatter;
 210 }
 211
 212 static void
 213 modest_formatter_instance_init (GTypeInstance *instance, gpointer g_class)
 214 {
 215         ModestFormatter *self = (ModestFormatter *)instance;
 216         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 217
 218         priv->content_type = NULL;
 219 }
 220
 221 static void
 222 modest_formatter_finalize (GObject *object)
 223 {
 224         ModestFormatter *self = (ModestFormatter *)object;
 225         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 226
 227         if (priv->content_type)
 228                 g_free (priv->content_type);
 229
 230         if (priv->signature)
 231                 g_free (priv->signature);
 232
 233         (*parent_class->finalize) (object);
 234 }
 235
 236 static void
 237 modest_formatter_class_init (ModestFormatterClass *class)
 238 {
 239         GObjectClass *object_class;
 240
 241         parent_class = g_type_class_peek_parent (class);
 242         object_class = (GObjectClass*) class;
 243         object_class->finalize = modest_formatter_finalize;
 244
 245         g_type_class_add_private (object_class, sizeof (ModestFormatterPrivate));
 246 }
 247
 248 GType
 249 modest_formatter_get_type (void)
 250 {
 251         static GType type = 0;
 252
 253         if (G_UNLIKELY(type == 0))
 254         {
 255                 static const GTypeInfo info =
 256                 {
 257                   sizeof (ModestFormatterClass),
 258                   NULL,   /* base_init */
 259                   NULL,   /* base_finalize */
 260                   (GClassInitFunc) modest_formatter_class_init,   /* class_init */
 261                   NULL,   /* class_finalize */
 262                   NULL,   /* class_data */
 263                   sizeof (ModestFormatter),
 264                   0,      /* n_preallocs */
 265                   modest_formatter_instance_init    /* instance_init */
 266                 };
 267
 268                 type = g_type_register_static (G_TYPE_OBJECT,
 269                         "ModestFormatter",
 270                         &info, 0);
 271         }
 272
 273         return type;
 274 }
 275
 276 /****************/
 277 static gchar *
 278 modest_formatter_wrapper_cite (ModestFormatter *self, const gchar *text, TnyHeader *header,
 279                                GList *attachments)
 280 {
 281         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 282
 283         return modest_text_utils_cite (text,
 284                                        priv->content_type,
 285                                        priv->signature,
 286                                        tny_header_get_from (header),
 287                                        tny_header_get_date_sent (header));
 288 }
 289
 290 static gchar *
 291 modest_formatter_wrapper_inline (ModestFormatter *self, const gchar *text, TnyHeader *header,
 292                                  GList *attachments)
 293 {
 294         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 295
 296         return modest_text_utils_inline (text,
 297                                          priv->content_type,
 298                                          priv->signature,
 299                                          tny_header_get_from (header),
 300                                          tny_header_get_date_sent (header),
 301                                          tny_header_get_to (header),
 302                                          tny_header_get_subject (header));
 303 }
 304
 305 static gchar *
 306 modest_formatter_wrapper_quote (ModestFormatter *self, const gchar *text, TnyHeader *header,
 307                                 GList *attachments)
 308 {
 309         ModestFormatterPrivate *priv = MODEST_FORMATTER_GET_PRIVATE (self);
 310         GList *filenames = NULL;
 311         GList *node = NULL;
 312         gchar *result = NULL;
 313
 314         /* First we need a GList of attachments filenames */
 315         for (node = attachments; node != NULL; node = g_list_next (node)) {
 316                 TnyMimePart *part = (TnyMimePart *) node->data;
 317                 gchar *filename = NULL;
 318                 if (TNY_IS_MSG (part)) {
 319                         TnyHeader *header = tny_msg_get_header (TNY_MSG (part));
 320                         filename = g_strdup (tny_header_get_subject (header));
 321                         if ((filename == NULL)||(filename[0] == '\0')) {
 322                                 g_free (filename);
 323                                 filename = g_strdup (_("mail_va_no_subject"));
 324                         }
 325                         g_object_unref (header);
 326                 } else {
 327                         filename = g_strdup (tny_mime_part_get_filename (part));
 328                         if ((filename == NULL)||(filename[0] == '\0'))
 329                                 filename = g_strdup ("");
 330                 }
 331                 filenames = g_list_append (filenames, filename);
 332         }
 333         filenames = g_list_reverse (filenames);
 334
 335         /* TODO: get 80 from the configuration */
 336         result = modest_text_utils_quote (text,
 337                                           priv->content_type,
 338                                           priv->signature,
 339                                           tny_header_get_from (header),
 340                                           tny_header_get_date_sent (header),
 341                                           filenames,
 342                                           80);
 343
 344         g_list_foreach (filenames, (GFunc) g_free, NULL);
 345         g_list_free (filenames);
 346         return result;
 347 }
 348
 349 TnyMsg *
 350 modest_formatter_create_message (ModestFormatter *self, gboolean single_body, gboolean has_attachments)
 351 {
 352         TnyMsg *result = NULL;
 353         TnyPlatformFactory *fact = NULL;
 354         TnyMimePart *body_mime_part = NULL;
 355         fact    = modest_runtime_get_platform_factory ();
 356         result = tny_platform_factory_new_msg (fact);
 357         if (has_attachments) {
 358                 tny_mime_part_set_content_type (TNY_MIME_PART (result), "multipart/mixed");
 359                 if (!single_body) {
 360                         body_mime_part = tny_platform_factory_new_mime_part (fact);
 361                         tny_mime_part_set_content_type (body_mime_part, "multipart/alternative");
 362                         tny_mime_part_add_part (TNY_MIME_PART (result), body_mime_part);
 363                         g_object_unref (body_mime_part);
 364                 }
 365         } else if (!single_body) {
 366                 tny_mime_part_set_content_type (TNY_MIME_PART (result), "multipart/alternative");
 367         }
 368
 369         return result;
 370 }
 371
 372 TnyMimePart *
 373 modest_formatter_create_body_part (ModestFormatter *self, TnyMsg *msg)
 374 {
 375         TnyMimePart *result = NULL;
 376         const gchar *msg_content_type = NULL;
 377         TnyPlatformFactory *fact = NULL;
 378
 379         fact = modest_runtime_get_platform_factory ();
 380         msg_content_type = tny_mime_part_get_content_type (TNY_MIME_PART (msg));
 381         /* First it checks if the main part is alternative */
 382         if ((msg_content_type != NULL) &&
 383             (!g_strcasecmp (msg_content_type, "multipart/alternative"))) {
 384                 result = tny_platform_factory_new_mime_part (fact);
 385                 tny_mime_part_add_part (TNY_MIME_PART (msg), result);
 386                 return result;
 387         } else if ((msg_content_type != NULL) &&
 388                    (!g_strcasecmp (msg_content_type, "multipart/mixed"))) {
 389                 TnyList *parts = NULL;
 390                 TnyIterator *iter = NULL;
 391                 TnyMimePart *alternative_part = NULL;
 392
 393                 parts = TNY_LIST (tny_simple_list_new ());
 394                 tny_mime_part_get_parts (TNY_MIME_PART (msg), parts);
 395                 iter = tny_list_create_iterator (parts);
 396                 while (!tny_iterator_is_done (iter)) {
 397                         TnyMimePart *part = TNY_MIME_PART (tny_iterator_get_current (iter));
 398                         if (part && !g_strcasecmp(tny_mime_part_get_content_type (part), "multipart/alternative")) {
 399                                 alternative_part = part;
 400                                 break;
 401                         }
 402
 403                         if (part)
 404                                 g_object_unref (part);
 405
 406                         tny_iterator_next (iter);
 407                 }
 408                 result = tny_platform_factory_new_mime_part (fact);
 409                 if (alternative_part != NULL) {
 410                         tny_mime_part_add_part (alternative_part, result);
 411                 } else {
 412                         tny_mime_part_add_part (TNY_MIME_PART (msg), result);
 413                 }
 414                 g_object_unref (G_OBJECT (parts));
 415                 return result;
 416         } else {
 417                 /* We add a reference as this method is intended to obtain
 418                    a ref'ed part */
 419                 g_object_ref (msg);
 420                 return TNY_MIME_PART (msg);
 421         }
 422 }