src/plugins/tnef_parse/tnef_parse.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2007 Colin Leroy <colin@colino.net>
   4  * and the Claws Mail Team
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 #  include "config.h"
  23 #include "claws-features.h"
  24 #endif
  25
  26 #include <unistd.h>
  27 #include <stdio.h>
  28
  29 #include <glib.h>
  30 #include <glib/gi18n.h>
  31 #include <gtk/gtk.h>
  32
  33 #ifdef YTNEF_H_SUBDIR
  34 #include <libytnef/tnef-types.h>
  35 #include <libytnef/ytnef.h>
  36 #include <libytnef/mapi.h>
  37 #include <libytnef/mapidefs.h>
  38 #else
  39 #include <tnef-types.h>
  40 #include <ytnef.h>
  41 #include <mapi.h>
  42 #include <mapidefs.h>
  43 #endif
  44
  45 #include "common/claws.h"
  46 #include "common/version.h"
  47 #include "main.h"
  48 #include "plugin.h"
  49 #include "procmime.h"
  50 #include "utils.h"
  51 #include "claws_io.h"
  52
  53 #include "tnef_dump.h"
  54
  55 static MimeParser *tnef_parser = NULL;
  56
  57 static MimeInfo *tnef_broken_mimeinfo(const gchar *reason)
  58 {
  59         MimeInfo *sub_info = NULL;
  60         gchar *tmpfilename = NULL;
  61         FILE *fp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
  62         GStatBuf statbuf;
  63
  64         if (!fp) {
  65                 g_free(tmpfilename);
  66                 return NULL;
  67         }
  68         sub_info = procmime_mimeinfo_new();
  69         sub_info->content = MIMECONTENT_FILE;
  70         sub_info->data.filename = tmpfilename;
  71         sub_info->type = MIMETYPE_TEXT;
  72         sub_info->subtype = g_strdup("plain");
  73
  74         fprintf(fp, _("\n"
  75                         "Claws Mail TNEF parser:\n\n"
  76                         "%s\n"), reason?reason:_("Unknown error"));
  77
  78         claws_fclose(fp);
  79         if (g_stat(tmpfilename, &statbuf) < 0) {
  80                 claws_unlink(tmpfilename);
  81                 procmime_mimeinfo_free_all(&sub_info);
  82                 return NULL;
  83
  84         }
  85
  86         sub_info->tmp = TRUE;
  87         sub_info->length = statbuf.st_size;
  88         sub_info->encoding_type = ENC_BINARY;
  89
  90         return sub_info;
  91
  92 }
  93
  94 static MimeInfo *tnef_dump_file(const gchar *filename, char *data, size_t size)
  95 {
  96         MimeInfo *sub_info = NULL;
  97         gchar *tmpfilename = NULL;
  98         FILE *fp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
  99         GStatBuf statbuf;
 100         gchar *content_type = NULL;
 101         if (!fp) {
 102                 g_free(tmpfilename);
 103                 return NULL;
 104         }
 105         sub_info = procmime_mimeinfo_new();
 106         sub_info->content = MIMECONTENT_FILE;
 107         sub_info->data.filename = tmpfilename;
 108         sub_info->type = MIMETYPE_APPLICATION;
 109         sub_info->subtype = g_strdup("octet-stream");
 110
 111         if (filename) {
 112                 g_hash_table_insert(sub_info->typeparameters,
 113                                     g_strdup("filename"),
 114                                     g_strdup(filename));
 115
 116                 content_type = procmime_get_mime_type(filename);
 117                 if (content_type && strchr(content_type, '/')) {
 118                         g_free(sub_info->subtype);
 119                         sub_info->subtype = g_strdup(strchr(content_type, '/')+1);
 120                         *(strchr(content_type, '/')) = '\0';
 121                         sub_info->type = procmime_get_media_type(content_type);
 122                         g_free(content_type);
 123                 }
 124         }
 125
 126         if (claws_fwrite(data, 1, size, fp) < size) {
 127                 FILE_OP_ERROR(tmpfilename, "claws_fwrite");
 128                 claws_fclose(fp);
 129                 claws_unlink(tmpfilename);
 130                 procmime_mimeinfo_free_all(&sub_info);
 131                 return tnef_broken_mimeinfo(_("Failed to write the part data."));
 132         }
 133         claws_fclose(fp);
 134
 135         if (g_stat(tmpfilename, &statbuf) < 0) {
 136                 claws_unlink(tmpfilename);
 137                 procmime_mimeinfo_free_all(&sub_info);
 138                 return tnef_broken_mimeinfo(_("Failed to write the part data."));
 139         } else {
 140                 sub_info->tmp = TRUE;
 141                 sub_info->length = statbuf.st_size;
 142                 sub_info->encoding_type = ENC_BINARY;
 143         }
 144
 145         return sub_info;
 146 }
 147
 148 MimeInfo *tnef_parse_vcal(TNEFStruct *tnef)
 149 {
 150         MimeInfo *sub_info = NULL;
 151         gchar *tmpfilename = NULL;
 152         FILE *fp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 153         GStatBuf statbuf;
 154         gboolean result = FALSE;
 155         if (!fp) {
 156                 g_free(tmpfilename);
 157                 return NULL;
 158         }
 159         sub_info = procmime_mimeinfo_new();
 160         sub_info->content = MIMECONTENT_FILE;
 161         sub_info->data.filename = tmpfilename;
 162         sub_info->type = MIMETYPE_TEXT;
 163         sub_info->subtype = g_strdup("calendar");
 164         g_hash_table_insert(sub_info->typeparameters,
 165                             g_strdup("filename"),
 166                             g_strdup("calendar.ics"));
 167
 168         result = SaveVCalendar(fp, tnef);
 169
 170         claws_fclose(fp);
 171
 172         if (g_stat(tmpfilename, &statbuf) < 0) {
 173                 result = FALSE;
 174         } else {
 175                 sub_info->tmp = TRUE;
 176                 sub_info->length = statbuf.st_size;
 177                 sub_info->encoding_type = ENC_BINARY;
 178         }
 179
 180         if (!result) {
 181                 claws_unlink(tmpfilename);
 182                 procmime_mimeinfo_free_all(&sub_info);
 183                 return tnef_broken_mimeinfo(_("Failed to parse VCalendar data."));
 184         }
 185         return sub_info;
 186 }
 187
 188 MimeInfo *tnef_parse_vtask(TNEFStruct *tnef)
 189 {
 190         MimeInfo *sub_info = NULL;
 191         gchar *tmpfilename = NULL;
 192         FILE *fp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 193         GStatBuf statbuf;
 194         gboolean result = FALSE;
 195         if (!fp) {
 196                 g_free(tmpfilename);
 197                 return NULL;
 198         }
 199         sub_info = procmime_mimeinfo_new();
 200         sub_info->content = MIMECONTENT_FILE;
 201         sub_info->data.filename = tmpfilename;
 202         sub_info->type = MIMETYPE_TEXT;
 203         sub_info->subtype = g_strdup("calendar");
 204         g_hash_table_insert(sub_info->typeparameters,
 205                             g_strdup("filename"),
 206                             g_strdup("task.ics"));
 207
 208         result = SaveVTask(fp, tnef);
 209
 210         claws_fclose(fp);
 211
 212         if (g_stat(tmpfilename, &statbuf) < 0) {
 213                 result = FALSE;
 214         } else {
 215                 sub_info->tmp = TRUE;
 216                 sub_info->length = statbuf.st_size;
 217                 sub_info->encoding_type = ENC_BINARY;
 218         }
 219         if (!result) {
 220                 claws_unlink(tmpfilename);
 221                 procmime_mimeinfo_free_all(&sub_info);
 222                 return tnef_broken_mimeinfo(_("Failed to parse VTask data."));
 223         }
 224         return sub_info;
 225 }
 226
 227 MimeInfo *tnef_parse_rtf(TNEFStruct *tnef, variableLength *tmp_var)
 228 {
 229         variableLength buf;
 230         MimeInfo *info = NULL;
 231         buf.data = DecompressRTF(tmp_var, &(buf.size));
 232         if (buf.data) {
 233                 info = tnef_dump_file("message.rtf", buf.data, buf.size);
 234                 free(buf.data);
 235                 return info;
 236         } else {
 237                 return NULL;
 238         }
 239 }
 240
 241 MimeInfo *tnef_parse_vcard(TNEFStruct *tnef)
 242 {
 243         MimeInfo *sub_info = NULL;
 244         gchar *tmpfilename = NULL;
 245         FILE *fp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 246         GStatBuf statbuf;
 247         gboolean result = FALSE;
 248         gint ret;
 249         if (!fp) {
 250                 g_free(tmpfilename);
 251                 return NULL;
 252         }
 253         sub_info = procmime_mimeinfo_new();
 254         sub_info->content = MIMECONTENT_FILE;
 255         sub_info->data.filename = tmpfilename;
 256         sub_info->type = MIMETYPE_TEXT;
 257         sub_info->subtype = g_strdup("x-vcard");
 258         g_hash_table_insert(sub_info->typeparameters,
 259                             g_strdup("filename"),
 260                             g_strdup("contact.vcf"));
 261
 262         result = SaveVCard(fp, tnef);
 263
 264         claws_fclose(fp);
 265
 266         ret = g_stat(tmpfilename, &statbuf);
 267         if (ret == -1) {
 268                 debug_print("couldn't stat tmpfilename '%s'\n", tmpfilename);
 269         }
 270
 271         if ((ret == -1) || !result) {
 272                 claws_unlink(tmpfilename);
 273                 procmime_mimeinfo_free_all(&sub_info);
 274                 return tnef_broken_mimeinfo(_("Failed to parse VCard data."));
 275         }
 276
 277         sub_info->tmp = TRUE;
 278         sub_info->length = statbuf.st_size;
 279         sub_info->encoding_type = ENC_BINARY;
 280         return sub_info;
 281 }
 282
 283 static gboolean tnef_parse (MimeParser *parser, MimeInfo *mimeinfo)
 284 {
 285         TNEFStruct *tnef;
 286         MimeInfo *sub_info = NULL;
 287         variableLength *tmp_var;
 288         Attachment *att;
 289         int parse_result = 0;
 290         gboolean cal_done = FALSE;
 291
 292         if (!procmime_decode_content(mimeinfo)) {
 293                 debug_print("error decoding\n");
 294                 return FALSE;
 295         }
 296         debug_print("Tnef parser parsing part (%d).\n", mimeinfo->length);
 297         if (mimeinfo->content == MIMECONTENT_FILE)
 298                 debug_print("content: %s\n", mimeinfo->data.filename);
 299         else
 300                 debug_print("contents in memory (len %zd)\n",
 301                         strlen(mimeinfo->data.mem));
 302
 303         tnef = g_new0(TNEFStruct, 1);
 304         TNEFInitialize(tnef);
 305
 306         tnef->Debug = debug_get_mode();
 307
 308         if (mimeinfo->content == MIMECONTENT_MEM)
 309                 parse_result = TNEFParseMemory(mimeinfo->data.mem, mimeinfo->length, tnef);
 310         else
 311                 parse_result = TNEFParseFile(mimeinfo->data.filename, tnef);
 312
 313         mimeinfo->type = MIMETYPE_MULTIPART;
 314         mimeinfo->subtype = g_strdup("mixed");
 315         g_hash_table_insert(mimeinfo->typeparameters,
 316                             g_strdup("description"),
 317                             g_strdup("Parsed from MS-TNEF"));
 318
 319         if (parse_result != 0) {
 320                 g_warning("Failed to parse TNEF data.");
 321                 TNEFFree(tnef);
 322                 return FALSE;
 323         }
 324
 325         sub_info = NULL;
 326         if (tnef->messageClass[0] != '\0') {
 327                 if (strcmp(tnef->messageClass, "IPM.Contact") == 0)
 328                         sub_info = tnef_parse_vcard(tnef);
 329                 else if (strcmp(tnef->messageClass, "IPM.Task") == 0)
 330                         sub_info = tnef_parse_vtask(tnef);
 331                 else if (strcmp(tnef->messageClass, "IPM.Appointment") == 0) {
 332                         sub_info = tnef_parse_vcal(tnef);
 333                         cal_done = TRUE;
 334                 }
 335         }
 336
 337         if (sub_info)
 338                 g_node_append(mimeinfo->node, sub_info->node);
 339         sub_info = NULL;
 340
 341         if (tnef->MapiProperties.count > 0) {
 342                 tmp_var = MAPIFindProperty (&(tnef->MapiProperties), PROP_TAG(PT_BINARY,PR_RTF_COMPRESSED));
 343                 if (tmp_var != MAPI_UNDEFINED) {
 344                         sub_info = tnef_parse_rtf(tnef, tmp_var);
 345                 }
 346         }
 347
 348         if (sub_info)
 349                 g_node_append(mimeinfo->node, sub_info->node);
 350         sub_info = NULL;
 351
 352         tmp_var = MAPIFindUserProp(&(tnef->MapiProperties), PROP_TAG(PT_STRING8,0x24));
 353         if (tmp_var != MAPI_UNDEFINED) {
 354                 if (!cal_done && strcmp(tmp_var->data, "IPM.Appointment") == 0) {
 355                         sub_info = tnef_parse_vcal(tnef);
 356                 }
 357         }
 358
 359         if (sub_info)
 360                 g_node_append(mimeinfo->node, sub_info->node);
 361         sub_info = NULL;
 362
 363         att = tnef->starting_attach.next;
 364         while (att) {
 365                 gchar *filename = NULL;
 366                 gboolean is_object = TRUE;
 367                 DWORD signature;
 368
 369                 tmp_var = MAPIFindProperty(&(att->MAPI), PROP_TAG(30,0x3707));
 370                 if (tmp_var == MAPI_UNDEFINED)
 371                         tmp_var = MAPIFindProperty(&(att->MAPI), PROP_TAG(30,0x3001));
 372                 if (tmp_var == MAPI_UNDEFINED)
 373                         tmp_var = &(att->Title);
 374
 375                 if (tmp_var->data)
 376                         filename = g_strdup(tmp_var->data);
 377
 378                 tmp_var = MAPIFindProperty(&(att->MAPI), PROP_TAG(PT_OBJECT, PR_ATTACH_DATA_OBJ));
 379                 if (tmp_var == MAPI_UNDEFINED)
 380                         tmp_var = MAPIFindProperty(&(att->MAPI), PROP_TAG(PT_BINARY, PR_ATTACH_DATA_OBJ));
 381                 if (tmp_var == MAPI_UNDEFINED) {
 382                         tmp_var = &(att->FileData);
 383                         is_object = FALSE;
 384                 }
 385
 386                 sub_info = tnef_dump_file(filename,
 387                         tmp_var->data + (is_object ? 16:0),
 388                         tmp_var->size - (is_object ? 16:0));
 389
 390                 if (sub_info)
 391                         g_node_append(mimeinfo->node, sub_info->node);
 392
 393                 memcpy(&signature, tmp_var->data+(is_object ? 16:0), sizeof(DWORD));
 394
 395                 if (TNEFCheckForSignature(signature) == 0) {
 396                         debug_print("that's TNEF stuff, process it\n");
 397                         tnef_parse(parser, sub_info);
 398                 }
 399
 400                 sub_info = NULL;
 401
 402                 att = att->next;
 403
 404                 g_free(filename);
 405         }
 406
 407         TNEFFree(tnef);
 408         return TRUE;
 409 }
 410
 411 gint plugin_init(gchar **error)
 412 {
 413         if (!check_plugin_version(MAKE_NUMERIC_VERSION(2,9,2,72),
 414                                 VERSION_NUMERIC, _("TNEF Parser"), error))
 415                 return -1;
 416
 417         tnef_parser = g_new0(MimeParser, 1);
 418         tnef_parser->type = MIMETYPE_APPLICATION;
 419         tnef_parser->sub_type = "ms-tnef";
 420         tnef_parser->parse = tnef_parse;
 421
 422         procmime_mimeparser_register(tnef_parser);
 423
 424         return 0;
 425 }
 426
 427 gboolean plugin_done(void)
 428 {
 429         procmime_mimeparser_unregister(tnef_parser);
 430         g_free(tnef_parser);
 431         tnef_parser = NULL;
 432
 433         return TRUE;
 434 }
 435
 436 const gchar *plugin_name(void)
 437 {
 438         return _("TNEF Parser");
 439 }
 440
 441 const gchar *plugin_desc(void)
 442 {
 443         return _("This Claws Mail plugin allows you to read application/ms-tnef attachments.\n\n"
 444                  "The plugin uses the Ytnef library, which is copyright 2002-2007 by "
 445                  "Randall Hand <yerase@yerot.com>");
 446 }
 447
 448 const gchar *plugin_type(void)
 449 {
 450         return "GTK2";
 451 }
 452
 453 const gchar *plugin_licence(void)
 454 {
 455         return "GPL3+";
 456 }
 457
 458 const gchar *plugin_version(void)
 459 {
 460         return VERSION;
 461 }
 462
 463 struct PluginFeature *plugin_provides(void)
 464 {
 465         static struct PluginFeature features[] =
 466                 { {PLUGIN_MIMEPARSER, "application/ms-tnef"},
 467                   {PLUGIN_NOTHING, NULL}};
 468         return features;
 469 }