src/procmime.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 Hiroyuki Yamamoto & The Sylpheed-Claws Team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <stdio.h>
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <stdio.h>
  30 #include <string.h>
  31 #if HAVE_LOCALE_H
  32 #  include <locale.h>
  33 #endif
  34 #include <ctype.h>
  35 #include <sys/types.h>
  36 #include <sys/stat.h>
  37 #include <unistd.h>
  38
  39 #include "procmime.h"
  40 #include "procheader.h"
  41 #include "base64.h"
  42 #include "quoted-printable.h"
  43 #include "uuencode.h"
  44 #include "unmime.h"
  45 #include "html.h"
  46 #include "enriched.h"
  47 #include "codeconv.h"
  48 #include "utils.h"
  49 #include "prefs_common.h"
  50 #include "prefs_gtk.h"
  51
  52 static GHashTable *procmime_get_mime_type_table (void);
  53
  54 MimeInfo *procmime_mimeinfo_new(void)
  55 {
  56         MimeInfo *mimeinfo;
  57
  58         mimeinfo = g_new0(MimeInfo, 1);
  59         mimeinfo->content        = MIMECONTENT_EMPTY;
  60         mimeinfo->data.filename  = NULL;
  61
  62         mimeinfo->type           = MIMETYPE_UNKNOWN;
  63         mimeinfo->encoding_type  = ENC_UNKNOWN;
  64         mimeinfo->typeparameters = g_hash_table_new(g_str_hash, g_str_equal);
  65
  66         mimeinfo->disposition    = DISPOSITIONTYPE_UNKNOWN;
  67         mimeinfo->dispositionparameters
  68                                  = g_hash_table_new(g_str_hash, g_str_equal);
  69
  70         mimeinfo->node           = g_node_new(mimeinfo);
  71
  72         return mimeinfo;
  73 }
  74
  75 static gboolean procmime_mimeinfo_parameters_destroy(gpointer key, gpointer value, gpointer user_data)
  76 {
  77         g_free(key);
  78         g_free(value);
  79
  80         return TRUE;
  81 }
  82
  83 static gchar *forced_charset = NULL;
  84
  85 void procmime_force_charset(const gchar *str)
  86 {
  87         g_free(forced_charset);
  88         forced_charset = NULL;
  89         if (str)
  90                 forced_charset = g_strdup(str);
  91 }
  92
  93 static EncodingType forced_encoding = 0;
  94
  95 void procmime_force_encoding(EncodingType encoding)
  96 {
  97         forced_encoding = encoding;
  98 }
  99
 100 static gboolean free_func(GNode *node, gpointer data)
 101 {
 102         MimeInfo *mimeinfo = (MimeInfo *) node->data;
 103
 104         switch (mimeinfo->content) {
 105         case MIMECONTENT_FILE:
 106                 if (mimeinfo->tmp)
 107                         g_unlink(mimeinfo->data.filename);
 108                 g_free(mimeinfo->data.filename);
 109                 break;
 110
 111         case MIMECONTENT_MEM:
 112                 if (mimeinfo->tmp)
 113                         g_free(mimeinfo->data.mem);
 114         default:
 115                 break;
 116         }
 117
 118         g_free(mimeinfo->subtype);
 119         g_free(mimeinfo->description);
 120         g_free(mimeinfo->id);
 121         g_free(mimeinfo->location);
 122
 123         g_hash_table_foreach_remove(mimeinfo->typeparameters,
 124                 procmime_mimeinfo_parameters_destroy, NULL);
 125         g_hash_table_destroy(mimeinfo->typeparameters);
 126         g_hash_table_foreach_remove(mimeinfo->dispositionparameters,
 127                 procmime_mimeinfo_parameters_destroy, NULL);
 128         g_hash_table_destroy(mimeinfo->dispositionparameters);
 129
 130         if (mimeinfo->privacy)
 131                 privacy_free_privacydata(mimeinfo->privacy);
 132
 133         g_free(mimeinfo);
 134
 135         return FALSE;
 136 }
 137
 138 void procmime_mimeinfo_free_all(MimeInfo *mimeinfo)
 139 {
 140         GNode *node;
 141
 142         if (!mimeinfo)
 143                 return;
 144
 145         node = mimeinfo->node;
 146         g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_ALL, -1, free_func, NULL);
 147
 148         g_node_destroy(node);
 149 }
 150
 151 MimeInfo *procmime_mimeinfo_parent(MimeInfo *mimeinfo)
 152 {
 153         g_return_val_if_fail(mimeinfo != NULL, NULL);
 154         g_return_val_if_fail(mimeinfo->node != NULL, NULL);
 155
 156         if (mimeinfo->node->parent == NULL)
 157                 return NULL;
 158         return (MimeInfo *) mimeinfo->node->parent->data;
 159 }
 160
 161 MimeInfo *procmime_mimeinfo_next(MimeInfo *mimeinfo)
 162 {
 163         g_return_val_if_fail(mimeinfo != NULL, NULL);
 164         g_return_val_if_fail(mimeinfo->node != NULL, NULL);
 165
 166         if (mimeinfo->node->children)
 167                 return (MimeInfo *) mimeinfo->node->children->data;
 168         if (mimeinfo->node->next)
 169                 return (MimeInfo *) mimeinfo->node->next->data;
 170
 171         if (mimeinfo->node->parent == NULL)
 172                 return NULL;
 173
 174         while (mimeinfo->node->parent != NULL) {
 175                 mimeinfo = (MimeInfo *) mimeinfo->node->parent->data;
 176                 if (mimeinfo->node->next)
 177                         return (MimeInfo *) mimeinfo->node->next->data;
 178         }
 179
 180         return NULL;
 181 }
 182
 183 MimeInfo *procmime_scan_message(MsgInfo *msginfo)
 184 {
 185         gchar *filename;
 186         MimeInfo *mimeinfo;
 187
 188         filename = procmsg_get_message_file_path(msginfo);
 189         if (!filename || !is_file_exist(filename)) {
 190                 g_free(filename);
 191                 filename = procmsg_get_message_file(msginfo);
 192         }
 193         if (!filename || !is_file_exist(filename))
 194                 return NULL;
 195
 196         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
 197             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
 198                 mimeinfo = procmime_scan_file(filename);
 199         else
 200                 mimeinfo = procmime_scan_queue_file(filename);
 201         g_free(filename);
 202
 203         return mimeinfo;
 204 }
 205
 206 enum
 207 {
 208         H_CONTENT_TRANSFER_ENCODING = 0,
 209         H_CONTENT_TYPE              = 1,
 210         H_CONTENT_DISPOSITION       = 2,
 211         H_CONTENT_DESCRIPTION       = 3,
 212         H_SUBJECT                   = 4
 213 };
 214
 215 const gchar *procmime_mimeinfo_get_parameter(MimeInfo *mimeinfo, const gchar *name)
 216 {
 217         const gchar *value;
 218
 219         g_return_val_if_fail(mimeinfo != NULL, NULL);
 220         g_return_val_if_fail(name != NULL, NULL);
 221
 222         value = g_hash_table_lookup(mimeinfo->dispositionparameters, name);
 223         if (value == NULL)
 224                 value = g_hash_table_lookup(mimeinfo->typeparameters, name);
 225
 226         return value;
 227 }
 228
 229 gboolean procmime_decode_content(MimeInfo *mimeinfo)
 230 {
 231         gchar buf[BUFFSIZE];
 232         gint readend;
 233         gchar *tmpfilename;
 234         FILE *outfp, *infp;
 235         struct stat statbuf;
 236         gboolean tmp_file = FALSE;
 237
 238         EncodingType encoding = forced_encoding
 239                                 ? forced_encoding
 240                                 : mimeinfo->encoding_type;
 241
 242         g_return_val_if_fail(mimeinfo != NULL, FALSE);
 243
 244         if (encoding == ENC_UNKNOWN ||
 245             encoding == ENC_BINARY)
 246                 return TRUE;
 247
 248         infp = g_fopen(mimeinfo->data.filename, "rb");
 249         if (!infp) {
 250                 perror("fopen");
 251                 return FALSE;
 252         }
 253         fseek(infp, mimeinfo->offset, SEEK_SET);
 254
 255         outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 256         if (!outfp) {
 257                 perror("tmpfile");
 258                 fclose(infp);
 259                 return FALSE;
 260         }
 261         tmp_file = TRUE;
 262         readend = mimeinfo->offset + mimeinfo->length;
 263
 264         if (encoding == ENC_QUOTED_PRINTABLE) {
 265                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 266                         gint len;
 267                         len = qp_decode_line(buf);
 268                         fwrite(buf, 1, len, outfp);
 269                 }
 270         } else if (encoding == ENC_BASE64) {
 271                 gchar outbuf[BUFFSIZE];
 272                 gint len;
 273                 Base64Decoder *decoder;
 274                 gboolean got_error = FALSE;
 275                 gboolean uncanonicalize = FALSE;
 276                 FILE *tmpfp = outfp;
 277
 278                 if (mimeinfo->type == MIMETYPE_TEXT ||
 279                     mimeinfo->type == MIMETYPE_MESSAGE) {
 280                         uncanonicalize = TRUE;
 281                         tmpfp = my_tmpfile();
 282                         if (!tmpfp) {
 283                                 perror("tmpfile");
 284                                 if (tmp_file) fclose(outfp);
 285                                 fclose(infp);
 286                                 return FALSE;
 287                         }
 288                 }
 289
 290                 decoder = base64_decoder_new();
 291                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 292                         len = base64_decoder_decode(decoder, buf, outbuf);
 293                         if (len < 0 && !got_error) {
 294                                 g_warning("Bad BASE64 content.\n");
 295                                 fwrite(_("[Error decoding BASE64]\n"),
 296                                         sizeof(gchar),
 297                                         strlen(_("[Error decoding BASE64]\n")),
 298                                         tmpfp);
 299                                 got_error = TRUE;
 300                                 continue;
 301                         } else if (len >= 0) {
 302                                 /* print out the error message only once
 303                                  * per block */
 304                                 fwrite(outbuf, sizeof(gchar), len, tmpfp);
 305                                 got_error = FALSE;
 306                         }
 307                 }
 308                 base64_decoder_free(decoder);
 309
 310                 if (uncanonicalize) {
 311                         rewind(tmpfp);
 312                         while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
 313                                 strcrchomp(buf);
 314                                 fputs(buf, outfp);
 315                         }
 316                         fclose(tmpfp);
 317                 }
 318         } else if (encoding == ENC_X_UUENCODE) {
 319                 gchar outbuf[BUFFSIZE];
 320                 gint len;
 321                 gboolean flag = FALSE;
 322
 323                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 324                         if (!flag && strncmp(buf,"begin ", 6)) continue;
 325
 326                         if (flag) {
 327                                 len = fromuutobits(outbuf, buf);
 328                                 if (len <= 0) {
 329                                         if (len < 0)
 330                                                 g_warning("Bad UUENCODE content(%d)\n", len);
 331                                         break;
 332                                 }
 333                                 fwrite(outbuf, sizeof(gchar), len, outfp);
 334                         } else
 335                                 flag = TRUE;
 336                 }
 337         } else {
 338                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 339                         fputs(buf, outfp);
 340                 }
 341         }
 342
 343         fclose(outfp);
 344         fclose(infp);
 345
 346         stat(tmpfilename, &statbuf);
 347         if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
 348                 g_unlink(mimeinfo->data.filename);
 349         if (mimeinfo->data.filename != NULL)
 350                 g_free(mimeinfo->data.filename);
 351         mimeinfo->data.filename = tmpfilename;
 352         mimeinfo->tmp = TRUE;
 353         mimeinfo->offset = 0;
 354         mimeinfo->length = statbuf.st_size;
 355         mimeinfo->encoding_type = ENC_BINARY;
 356
 357         return TRUE;
 358 }
 359
 360 #define B64_LINE_SIZE           57
 361 #define B64_BUFFSIZE            77
 362
 363 gboolean procmime_encode_content(MimeInfo *mimeinfo, EncodingType encoding)
 364 {
 365         FILE *infp = NULL, *outfp;
 366         gint len;
 367         gchar *tmpfilename;
 368         struct stat statbuf;
 369
 370         if (mimeinfo->content == MIMECONTENT_EMPTY)
 371                 return TRUE;
 372
 373         if (mimeinfo->encoding_type != ENC_UNKNOWN &&
 374             mimeinfo->encoding_type != ENC_BINARY &&
 375             mimeinfo->encoding_type != ENC_7BIT &&
 376             mimeinfo->encoding_type != ENC_8BIT)
 377                 if(!procmime_decode_content(mimeinfo))
 378                         return FALSE;
 379
 380         outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 381         if (!outfp) {
 382                 perror("tmpfile");
 383                 return FALSE;
 384         }
 385
 386         if (mimeinfo->content == MIMECONTENT_FILE) {
 387                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
 388                         g_warning("Can't open file %s\n", mimeinfo->data.filename);
 389                         return FALSE;
 390                 }
 391         } else if (mimeinfo->content == MIMECONTENT_MEM) {
 392                 infp = str_open_as_stream(mimeinfo->data.mem);
 393                 if (infp == NULL)
 394                         return FALSE;
 395         }
 396
 397         if (encoding == ENC_BASE64) {
 398                 gchar inbuf[B64_LINE_SIZE], outbuf[B64_BUFFSIZE];
 399                 FILE *tmp_fp = infp;
 400                 gchar *tmp_file = NULL;
 401
 402                 if (mimeinfo->type == MIMETYPE_TEXT ||
 403                      mimeinfo->type == MIMETYPE_MESSAGE) {
 404                         if (mimeinfo->content == MIMECONTENT_FILE) {
 405                                 tmp_file = get_tmp_file();
 406                                 if (canonicalize_file(mimeinfo->data.filename, tmp_file) < 0) {
 407                                         g_free(tmp_file);
 408                                         fclose(infp);
 409                                         return FALSE;
 410                                 }
 411                                 if ((tmp_fp = g_fopen(tmp_file, "rb")) == NULL) {
 412                                         FILE_OP_ERROR(tmp_file, "fopen");
 413                                         g_unlink(tmp_file);
 414                                         g_free(tmp_file);
 415                                         fclose(infp);
 416                                         return FALSE;
 417                                 }
 418                         } else {
 419                                 gchar *out = canonicalize_str(mimeinfo->data.mem);
 420                                 fclose(infp);
 421                                 infp = str_open_as_stream(out);
 422                                 tmp_fp = infp;
 423                                 g_free(out);
 424                                 if (infp == NULL)
 425                                         return FALSE;
 426                         }
 427                 }
 428
 429                 while ((len = fread(inbuf, sizeof(gchar),
 430                                     B64_LINE_SIZE, tmp_fp))
 431                        == B64_LINE_SIZE) {
 432                         base64_encode(outbuf, inbuf, B64_LINE_SIZE);
 433                         fputs(outbuf, outfp);
 434                         fputc('\n', outfp);
 435                 }
 436                 if (len > 0 && feof(tmp_fp)) {
 437                         base64_encode(outbuf, inbuf, len);
 438                         fputs(outbuf, outfp);
 439                         fputc('\n', outfp);
 440                 }
 441
 442                 if (tmp_file) {
 443                         fclose(tmp_fp);
 444                         g_unlink(tmp_file);
 445                         g_free(tmp_file);
 446                 }
 447         } else if (encoding == ENC_QUOTED_PRINTABLE) {
 448                 gchar inbuf[BUFFSIZE], outbuf[BUFFSIZE * 4];
 449
 450                 while (fgets(inbuf, sizeof(inbuf), infp) != NULL) {
 451                         qp_encode_line(outbuf, inbuf);
 452
 453                         if (!strncmp("From ", outbuf, sizeof("From ")-1)) {
 454                                 gchar *tmpbuf = outbuf;
 455
 456                                 tmpbuf += sizeof("From ")-1;
 457
 458                                 fputs("=46rom ", outfp);
 459                                 fputs(tmpbuf, outfp);
 460                         } else
 461                                 fputs(outbuf, outfp);
 462                 }
 463         } else {
 464                 gchar buf[BUFFSIZE];
 465
 466                 while (fgets(buf, sizeof(buf), infp) != NULL) {
 467                         strcrchomp(buf);
 468                         fputs(buf, outfp);
 469                 }
 470         }
 471
 472         fclose(outfp);
 473         fclose(infp);
 474
 475         if (mimeinfo->content == MIMECONTENT_FILE) {
 476                 if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
 477                         g_unlink(mimeinfo->data.filename);
 478                 g_free(mimeinfo->data.filename);
 479         } else if (mimeinfo->content == MIMECONTENT_MEM) {
 480                 if (mimeinfo->tmp && (mimeinfo->data.mem != NULL))
 481                         g_free(mimeinfo->data.mem);
 482         }
 483
 484         stat(tmpfilename, &statbuf);
 485         mimeinfo->content = MIMECONTENT_FILE;
 486         mimeinfo->data.filename = tmpfilename;
 487         mimeinfo->tmp = TRUE;
 488         mimeinfo->offset = 0;
 489         mimeinfo->length = statbuf.st_size;
 490         mimeinfo->encoding_type = encoding;
 491
 492         return TRUE;
 493 }
 494
 495 gint procmime_get_part(const gchar *outfile, MimeInfo *mimeinfo)
 496 {
 497         FILE *infp, *outfp;
 498         gchar buf[BUFFSIZE];
 499         gint restlength, readlength;
 500
 501         g_return_val_if_fail(outfile != NULL, -1);
 502         g_return_val_if_fail(mimeinfo != NULL, -1);
 503
 504         if (mimeinfo->encoding_type != ENC_BINARY && !procmime_decode_content(mimeinfo))
 505                 return -1;
 506
 507         if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
 508                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
 509                 return -1;
 510         }
 511         if (fseek(infp, mimeinfo->offset, SEEK_SET) < 0) {
 512                 FILE_OP_ERROR(mimeinfo->data.filename, "fseek");
 513                 fclose(infp);
 514                 return -1;
 515         }
 516         if ((outfp = g_fopen(outfile, "wb")) == NULL) {
 517                 FILE_OP_ERROR(outfile, "fopen");
 518                 fclose(infp);
 519                 return -1;
 520         }
 521
 522         restlength = mimeinfo->length;
 523
 524         while ((restlength > 0) && ((readlength = fread(buf, 1, restlength > BUFFSIZE ? BUFFSIZE : restlength, infp)) > 0)) {
 525                 fwrite(buf, 1, readlength, outfp);
 526                 restlength -= readlength;
 527         }
 528
 529         fclose(infp);
 530         if (fclose(outfp) == EOF) {
 531                 FILE_OP_ERROR(outfile, "fclose");
 532                 g_unlink(outfile);
 533                 return -1;
 534         }
 535
 536         return 0;
 537 }
 538
 539 struct ContentRenderer {
 540         char * content_type;
 541         char * renderer;
 542 };
 543
 544 static GList * renderer_list = NULL;
 545
 546 static struct ContentRenderer *
 547 content_renderer_new(char * content_type, char * renderer)
 548 {
 549         struct ContentRenderer * cr;
 550
 551         cr = g_new(struct ContentRenderer, 1);
 552         if (cr == NULL)
 553                 return NULL;
 554
 555         cr->content_type = g_strdup(content_type);
 556         cr->renderer = g_strdup(renderer);
 557
 558         return cr;
 559 }
 560
 561 static void content_renderer_free(struct ContentRenderer * cr)
 562 {
 563         g_free(cr->content_type);
 564         g_free(cr->renderer);
 565         g_free(cr);
 566 }
 567
 568 void renderer_read_config(void)
 569 {
 570         gchar buf[BUFFSIZE];
 571         FILE * f;
 572         gchar * rcpath;
 573
 574         g_list_foreach(renderer_list, (GFunc) content_renderer_free, NULL);
 575         renderer_list = NULL;
 576
 577         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
 578         f = g_fopen(rcpath, "rb");
 579         g_free(rcpath);
 580
 581         if (f == NULL)
 582                 return;
 583
 584         while (fgets(buf, BUFFSIZE, f)) {
 585                 char * p;
 586                 struct ContentRenderer * cr;
 587
 588                 strretchomp(buf);
 589                 p = strchr(buf, ' ');
 590                 if (p == NULL)
 591                         continue;
 592                 * p = 0;
 593
 594                 cr = content_renderer_new(buf, p + 1);
 595                 if (cr == NULL)
 596                         continue;
 597
 598                 renderer_list = g_list_append(renderer_list, cr);
 599         }
 600
 601         fclose(f);
 602 }
 603
 604 void renderer_write_config(void)
 605 {
 606         gchar * rcpath;
 607         PrefFile *pfile;
 608         GList * cur;
 609
 610         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
 611
 612         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 613                 g_warning("failed to write configuration to file\n");
 614                 g_free(rcpath);
 615                 return;
 616         }
 617
 618         g_free(rcpath);
 619
 620         for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
 621                 struct ContentRenderer * renderer;
 622                 renderer = cur->data;
 623                 fprintf(pfile->fp, "%s %s\n", renderer->content_type,
 624                         renderer->renderer);
 625         }
 626
 627         if (prefs_file_close(pfile) < 0) {
 628                 g_warning("failed to write configuration to file\n");
 629                 return;
 630         }
 631 }
 632
 633 FILE *procmime_get_text_content(MimeInfo *mimeinfo)
 634 {
 635         FILE *tmpfp, *outfp;
 636         const gchar *src_codeset;
 637         gboolean conv_fail = FALSE;
 638         gchar buf[BUFFSIZE];
 639         gchar *str;
 640         struct ContentRenderer * renderer;
 641         GList * cur;
 642         gchar *tmpfile, *content_type;
 643
 644         g_return_val_if_fail(mimeinfo != NULL, NULL);
 645
 646         if (!procmime_decode_content(mimeinfo))
 647                 return NULL;
 648
 649         tmpfile = procmime_get_tmp_file_name(mimeinfo);
 650         if (tmpfile == NULL)
 651                 return NULL;
 652
 653         if (procmime_get_part(tmpfile, mimeinfo) < 0) {
 654                 g_free(tmpfile);
 655                 return NULL;
 656         }
 657
 658         tmpfp = g_fopen(tmpfile, "rb");
 659         if (tmpfp == NULL) {
 660                 g_free(tmpfile);
 661                 return NULL;
 662         }
 663
 664         if ((outfp = my_tmpfile()) == NULL) {
 665                 perror("tmpfile");
 666                 fclose(tmpfp);
 667                 g_free(tmpfile);
 668                 return NULL;
 669         }
 670
 671         src_codeset = forced_charset
 672                       ? forced_charset :
 673                       procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 674
 675         renderer = NULL;
 676
 677         content_type = procmime_get_content_type_str(mimeinfo->type,
 678                                                      mimeinfo->subtype);
 679         for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
 680                 struct ContentRenderer * cr;
 681
 682                 cr = cur->data;
 683                 if (g_ascii_strcasecmp(cr->content_type, content_type) == 0) {
 684                         renderer = cr;
 685                         break;
 686                 }
 687         }
 688         g_free(content_type);
 689
 690         if (renderer != NULL) {
 691                 FILE * p;
 692                 int oldout;
 693
 694                 oldout = dup(1);
 695
 696                 dup2(fileno(outfp), 1);
 697
 698                 p = popen(renderer->renderer, "w");
 699                 if (p != NULL) {
 700                         size_t count;
 701
 702                         while ((count =
 703                                 fread(buf, sizeof(char), sizeof(buf),
 704                                       tmpfp)) > 0)
 705                                 fwrite(buf, sizeof(char), count, p);
 706                         pclose(p);
 707                 }
 708
 709                 dup2(oldout, 1);
 710 /* CodeConverter seems to have no effect here */
 711         } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "html")) {
 712                 SC_HTMLParser *parser;
 713                 CodeConverter *conv;
 714
 715                 conv = conv_code_converter_new(src_codeset);
 716                 parser = sc_html_parser_new(tmpfp, conv);
 717                 while ((str = sc_html_parse(parser)) != NULL) {
 718                         fputs(str, outfp);
 719                 }
 720                 sc_html_parser_destroy(parser);
 721                 conv_code_converter_destroy(conv);
 722         } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 723                 ERTFParser *parser;
 724                 CodeConverter *conv;
 725
 726                 conv = conv_code_converter_new(src_codeset);
 727                 parser = ertf_parser_new(tmpfp, conv);
 728                 while ((str = ertf_parse(parser)) != NULL) {
 729                         fputs(str, outfp);
 730                 }
 731                 ertf_parser_destroy(parser);
 732                 conv_code_converter_destroy(conv);
 733         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 734                 while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
 735                         str = conv_codeset_strdup(buf, src_codeset, CS_UTF_8);
 736                         if (str) {
 737                                 fputs(str, outfp);
 738                                 g_free(str);
 739                         } else {
 740                                 conv_fail = TRUE;
 741                                 fputs(buf, outfp);
 742                         }
 743                 }
 744         }
 745
 746         if (conv_fail)
 747                 g_warning("procmime_get_text_content(): Code conversion failed.\n");
 748
 749         fclose(tmpfp);
 750         rewind(outfp);
 751         g_unlink(tmpfile);
 752         g_free(tmpfile);
 753
 754         return outfp;
 755 }
 756
 757 /* search the first text part of (multipart) MIME message,
 758    decode, convert it and output to outfp. */
 759 FILE *procmime_get_first_text_content(MsgInfo *msginfo)
 760 {
 761         FILE *outfp = NULL;
 762         MimeInfo *mimeinfo, *partinfo;
 763
 764         g_return_val_if_fail(msginfo != NULL, NULL);
 765
 766         mimeinfo = procmime_scan_message(msginfo);
 767         if (!mimeinfo) return NULL;
 768
 769         partinfo = mimeinfo;
 770         while (partinfo && partinfo->type != MIMETYPE_TEXT) {
 771                 partinfo = procmime_mimeinfo_next(partinfo);
 772         }
 773         if (partinfo)
 774                 outfp = procmime_get_text_content(partinfo);
 775
 776         procmime_mimeinfo_free_all(mimeinfo);
 777
 778         return outfp;
 779 }
 780
 781
 782 static gboolean find_encrypted_func(GNode *node, gpointer data)
 783 {
 784         MimeInfo *mimeinfo = (MimeInfo *) node->data;
 785         MimeInfo **encinfo = (MimeInfo **) data;
 786
 787         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
 788                 *encinfo = mimeinfo;
 789                 return TRUE;
 790         }
 791
 792         return FALSE;
 793 }
 794
 795 static MimeInfo *find_encrypted_part(MimeInfo *rootinfo)
 796 {
 797         MimeInfo *encinfo = NULL;
 798
 799         g_node_traverse(rootinfo->node, G_IN_ORDER, G_TRAVERSE_ALL, -1,
 800                 find_encrypted_func, &encinfo);
 801
 802         return encinfo;
 803 }
 804
 805 /* search the first encrypted text part of (multipart) MIME message,
 806    decode, convert it and output to outfp. */
 807 FILE *procmime_get_first_encrypted_text_content(MsgInfo *msginfo)
 808 {
 809         FILE *outfp = NULL;
 810         MimeInfo *mimeinfo, *partinfo, *encinfo;
 811
 812         g_return_val_if_fail(msginfo != NULL, NULL);
 813
 814         mimeinfo = procmime_scan_message(msginfo);
 815         if (!mimeinfo) {
 816                 return NULL;
 817         }
 818
 819         partinfo = mimeinfo;
 820         if ((encinfo = find_encrypted_part(partinfo)) != NULL) {
 821                 debug_print("decrypting message part\n");
 822                 if (privacy_mimeinfo_decrypt(encinfo) < 0)
 823                         return NULL;
 824         }
 825         partinfo = mimeinfo;
 826         while (partinfo && partinfo->type != MIMETYPE_TEXT) {
 827                 partinfo = procmime_mimeinfo_next(partinfo);
 828         }
 829
 830         if (partinfo)
 831                 outfp = procmime_get_text_content(partinfo);
 832
 833         procmime_mimeinfo_free_all(mimeinfo);
 834
 835         return outfp;
 836 }
 837
 838 gboolean procmime_msginfo_is_encrypted(MsgInfo *msginfo)
 839 {
 840         MimeInfo *mimeinfo, *partinfo;
 841         gboolean result = FALSE;
 842
 843         g_return_val_if_fail(msginfo != NULL, FALSE);
 844
 845         mimeinfo = procmime_scan_message(msginfo);
 846         if (!mimeinfo) {
 847                 return FALSE;
 848         }
 849
 850         partinfo = mimeinfo;
 851         result = (find_encrypted_part(partinfo) != NULL);
 852         procmime_mimeinfo_free_all(mimeinfo);
 853
 854         return result;
 855 }
 856
 857 gboolean procmime_find_string_part(MimeInfo *mimeinfo, const gchar *filename,
 858                                    const gchar *str, StrFindFunc find_func)
 859 {
 860         FILE *outfp;
 861         gchar buf[BUFFSIZE];
 862
 863         g_return_val_if_fail(mimeinfo != NULL, FALSE);
 864         g_return_val_if_fail(mimeinfo->type == MIMETYPE_TEXT, FALSE);
 865         g_return_val_if_fail(str != NULL, FALSE);
 866         g_return_val_if_fail(find_func != NULL, FALSE);
 867
 868         outfp = procmime_get_text_content(mimeinfo);
 869
 870         if (!outfp)
 871                 return FALSE;
 872
 873         while (fgets(buf, sizeof(buf), outfp) != NULL) {
 874                 strretchomp(buf);
 875                 if (find_func(buf, str)) {
 876                         fclose(outfp);
 877                         return TRUE;
 878                 }
 879         }
 880
 881         fclose(outfp);
 882
 883         return FALSE;
 884 }
 885
 886 gboolean procmime_find_string(MsgInfo *msginfo, const gchar *str,
 887                               StrFindFunc find_func)
 888 {
 889         MimeInfo *mimeinfo;
 890         MimeInfo *partinfo;
 891         gchar *filename;
 892         gboolean found = FALSE;
 893
 894         g_return_val_if_fail(msginfo != NULL, FALSE);
 895         g_return_val_if_fail(str != NULL, FALSE);
 896         g_return_val_if_fail(find_func != NULL, FALSE);
 897
 898         filename = procmsg_get_message_file(msginfo);
 899         if (!filename) return FALSE;
 900         mimeinfo = procmime_scan_message(msginfo);
 901
 902         for (partinfo = mimeinfo; partinfo != NULL;
 903              partinfo = procmime_mimeinfo_next(partinfo)) {
 904                 if (partinfo->type == MIMETYPE_TEXT) {
 905                         if (procmime_find_string_part
 906                                 (partinfo, filename, str, find_func) == TRUE) {
 907                                 found = TRUE;
 908                                 break;
 909                         }
 910                 }
 911         }
 912
 913         procmime_mimeinfo_free_all(mimeinfo);
 914         g_free(filename);
 915
 916         return found;
 917 }
 918
 919 gchar *procmime_get_tmp_file_name(MimeInfo *mimeinfo)
 920 {
 921         static guint32 id = 0;
 922         gchar *base;
 923         gchar *filename;
 924         gchar f_prefix[10];
 925
 926         g_return_val_if_fail(mimeinfo != NULL, NULL);
 927
 928         g_snprintf(f_prefix, sizeof(f_prefix), "%08x.", id++);
 929
 930         if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
 931                 base = g_strdup("mimetmp.html");
 932         else {
 933                 const gchar *basetmp;
 934
 935                 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 936                 if (basetmp == NULL)
 937                         basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 938                 if (basetmp == NULL)
 939                         basetmp = "mimetmp";
 940                 basetmp = g_path_get_basename(basetmp);
 941                 if (*basetmp == '\0')
 942                         basetmp = g_strdup("mimetmp");
 943                 base = conv_filename_from_utf8(basetmp);
 944                 g_free((gchar*)basetmp);
 945                 subst_for_shellsafe_filename(base);
 946         }
 947
 948         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 949                                f_prefix, base, NULL);
 950
 951         g_free(base);
 952
 953         return filename;
 954 }
 955
 956 static GList *mime_type_list = NULL;
 957
 958 gchar *procmime_get_mime_type(const gchar *filename)
 959 {
 960         static GHashTable *mime_type_table = NULL;
 961         MimeType *mime_type;
 962         const gchar *p;
 963         gchar *ext = NULL;
 964         gchar *base;
 965
 966         if (!mime_type_table) {
 967                 mime_type_table = procmime_get_mime_type_table();
 968                 if (!mime_type_table) return NULL;
 969         }
 970
 971         base = g_path_get_basename(filename);
 972         if ((p = strrchr(base, '.')) != NULL)
 973                 Xstrdup_a(ext, p + 1, p = NULL );
 974         g_free(base);
 975         if (!p) return NULL;
 976
 977         g_strdown(ext);
 978         mime_type = g_hash_table_lookup(mime_type_table, ext);
 979         if (mime_type) {
 980                 gchar *str;
 981
 982                 str = g_strconcat(mime_type->type, "/", mime_type->sub_type,
 983                                   NULL);
 984                 return str;
 985         }
 986
 987         return NULL;
 988 }
 989
 990 static guint procmime_str_hash(gconstpointer gptr)
 991 {
 992         guint hash_result = 0;
 993         const char *str;
 994
 995         for (str = gptr; str && *str; str++) {
 996                 if (isupper(*str)) hash_result += (*str + ' ');
 997                 else hash_result += *str;
 998         }
 999
1000         return hash_result;
1001 }
1002
1003 static gint procmime_str_equal(gconstpointer gptr1, gconstpointer gptr2)
1004 {
1005         const char *str1 = gptr1;
1006         const char *str2 = gptr2;
1007
1008         return !g_utf8_collate(str1, str2);
1009 }
1010
1011 static GHashTable *procmime_get_mime_type_table(void)
1012 {
1013         GHashTable *table = NULL;
1014         GList *cur;
1015         MimeType *mime_type;
1016         gchar **exts;
1017
1018         if (!mime_type_list) {
1019                 mime_type_list = procmime_get_mime_type_list();
1020                 if (!mime_type_list) return NULL;
1021         }
1022
1023         table = g_hash_table_new(procmime_str_hash, procmime_str_equal);
1024
1025         for (cur = mime_type_list; cur != NULL; cur = cur->next) {
1026                 gint i;
1027                 gchar *key;
1028
1029                 mime_type = (MimeType *)cur->data;
1030
1031                 if (!mime_type->extension) continue;
1032
1033                 exts = g_strsplit(mime_type->extension, " ", 16);
1034                 for (i = 0; exts[i] != NULL; i++) {
1035                         /* make the key case insensitive */
1036                         g_strdown(exts[i]);
1037                         /* use previously dup'd key on overwriting */
1038                         if (g_hash_table_lookup(table, exts[i]))
1039                                 key = exts[i];
1040                         else
1041                                 key = g_strdup(exts[i]);
1042                         g_hash_table_insert(table, key, mime_type);
1043                 }
1044                 g_strfreev(exts);
1045         }
1046
1047         return table;
1048 }
1049
1050 GList *procmime_get_mime_type_list(void)
1051 {
1052         GList *list = NULL;
1053         FILE *fp;
1054         gchar buf[BUFFSIZE];
1055         gchar *p;
1056         gchar *delim;
1057         MimeType *mime_type;
1058         gboolean fp_is_glob_file = TRUE;
1059
1060         if (mime_type_list)
1061                 return mime_type_list;
1062
1063         if ((fp = g_fopen("/usr/share/mime/globs", "rb")) == NULL) {
1064                 fp_is_glob_file = FALSE;
1065                 if ((fp = g_fopen("/etc/mime.types", "rb")) == NULL) {
1066                         if ((fp = g_fopen(SYSCONFDIR "/mime.types", "rb"))
1067                                 == NULL) {
1068                                 FILE_OP_ERROR(SYSCONFDIR "/mime.types",
1069                                         "fopen");
1070                                 return NULL;
1071                         }
1072                 }
1073         }
1074
1075         while (fgets(buf, sizeof(buf), fp) != NULL) {
1076                 p = strchr(buf, '#');
1077                 if (p) *p = '\0';
1078                 g_strstrip(buf);
1079
1080                 p = buf;
1081
1082                 if (fp_is_glob_file) {
1083                         while (*p && !g_ascii_isspace(*p) && (*p!=':')) p++;
1084                 } else {
1085                         while (*p && !g_ascii_isspace(*p)) p++;
1086                 }
1087
1088                 if (*p) {
1089                         *p = '\0';
1090                         p++;
1091                 }
1092                 delim = strchr(buf, '/');
1093                 if (delim == NULL) continue;
1094                 *delim = '\0';
1095
1096                 mime_type = g_new(MimeType, 1);
1097                 mime_type->type = g_strdup(buf);
1098                 mime_type->sub_type = g_strdup(delim + 1);
1099
1100                 if (fp_is_glob_file) {
1101                         while (*p && (g_ascii_isspace(*p)||(*p=='*')||(*p=='.'))) p++;
1102                 } else {
1103                         while (*p && g_ascii_isspace(*p)) p++;
1104                 }
1105
1106                 if (*p)
1107                         mime_type->extension = g_strdup(p);
1108                 else
1109                         mime_type->extension = NULL;
1110
1111                 list = g_list_append(list, mime_type);
1112         }
1113
1114         fclose(fp);
1115
1116         if (!list)
1117                 g_warning("Can't read mime.types\n");
1118
1119         return list;
1120 }
1121
1122 EncodingType procmime_get_encoding_for_charset(const gchar *charset)
1123 {
1124         if (!charset)
1125                 return ENC_8BIT;
1126         else if (!g_ascii_strncasecmp(charset, "ISO-2022-", 9) ||
1127                  !g_ascii_strcasecmp(charset, "US-ASCII"))
1128                 return ENC_7BIT;
1129         else if (!g_ascii_strcasecmp(charset, "ISO-8859-5") ||
1130                  !g_ascii_strncasecmp(charset, "KOI8-", 5) ||
1131                  !g_ascii_strcasecmp(charset, "Windows-1251"))
1132                 return ENC_8BIT;
1133         else if (!g_ascii_strncasecmp(charset, "ISO-8859-", 9))
1134                 return ENC_QUOTED_PRINTABLE;
1135         else
1136                 return ENC_8BIT;
1137 }
1138
1139 EncodingType procmime_get_encoding_for_text_file(const gchar *file, gboolean *has_binary)
1140 {
1141         FILE *fp;
1142         guchar buf[BUFFSIZE];
1143         size_t len;
1144         size_t octet_chars = 0;
1145         size_t total_len = 0;
1146         gfloat octet_percentage;
1147         gboolean force_b64 = FALSE;
1148
1149         if ((fp = g_fopen(file, "rb")) == NULL) {
1150                 FILE_OP_ERROR(file, "fopen");
1151                 return ENC_UNKNOWN;
1152         }
1153
1154         while ((len = fread(buf, sizeof(guchar), sizeof(buf), fp)) > 0) {
1155                 guchar *p;
1156                 gint i;
1157
1158                 for (p = buf, i = 0; i < len; ++p, ++i) {
1159                         if (*p & 0x80)
1160                                 ++octet_chars;
1161                         if (*p == '\0') {
1162                                 force_b64 = TRUE;
1163                                 *has_binary = TRUE;
1164                         }
1165                 }
1166                 total_len += len;
1167         }
1168
1169         fclose(fp);
1170
1171         if (total_len > 0)
1172                 octet_percentage = (gfloat)octet_chars / (gfloat)total_len;
1173         else
1174                 octet_percentage = 0.0;
1175
1176         debug_print("procmime_get_encoding_for_text_file(): "
1177                     "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
1178                     100.0 * octet_percentage);
1179
1180         if (octet_percentage > 0.20 || force_b64) {
1181                 debug_print("using BASE64\n");
1182                 return ENC_BASE64;
1183         } else if (octet_chars > 0) {
1184                 debug_print("using quoted-printable\n");
1185                 return ENC_QUOTED_PRINTABLE;
1186         } else {
1187                 debug_print("using 7bit\n");
1188                 return ENC_7BIT;
1189         }
1190 }
1191
1192 struct EncodingTable
1193 {
1194         gchar *str;
1195         EncodingType enc_type;
1196 };
1197
1198 struct EncodingTable encoding_table[] = {
1199         {"7bit", ENC_7BIT},
1200         {"8bit", ENC_8BIT},
1201         {"binary", ENC_BINARY},
1202         {"quoted-printable", ENC_QUOTED_PRINTABLE},
1203         {"base64", ENC_BASE64},
1204         {"x-uuencode", ENC_UNKNOWN},
1205         {NULL, ENC_UNKNOWN},
1206 };
1207
1208 const gchar *procmime_get_encoding_str(EncodingType encoding)
1209 {
1210         struct EncodingTable *enc_table;
1211
1212         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1213                 if (enc_table->enc_type == encoding)
1214                         return enc_table->str;
1215         }
1216         return NULL;
1217 }
1218
1219 /* --- NEW MIME STUFF --- */
1220 struct TypeTable
1221 {
1222         gchar *str;
1223         MimeMediaType type;
1224 };
1225
1226 static struct TypeTable mime_type_table[] = {
1227         {"text", MIMETYPE_TEXT},
1228         {"image", MIMETYPE_IMAGE},
1229         {"audio", MIMETYPE_AUDIO},
1230         {"video", MIMETYPE_VIDEO},
1231         {"application", MIMETYPE_APPLICATION},
1232         {"message", MIMETYPE_MESSAGE},
1233         {"multipart", MIMETYPE_MULTIPART},
1234         {NULL, 0},
1235 };
1236
1237 const gchar *procmime_get_media_type_str(MimeMediaType type)
1238 {
1239         struct TypeTable *type_table;
1240
1241         for (type_table = mime_type_table; type_table->str != NULL; type_table++) {
1242                 if (type_table->type == type)
1243                         return type_table->str;
1244         }
1245         return NULL;
1246 }
1247
1248 MimeMediaType procmime_get_media_type(const gchar *str)
1249 {
1250         struct TypeTable *typetablearray;
1251
1252         for (typetablearray = mime_type_table; typetablearray->str != NULL; typetablearray++)
1253                 if (g_ascii_strncasecmp(str, typetablearray->str, strlen(typetablearray->str)) == 0)
1254                         return typetablearray->type;
1255
1256         return MIMETYPE_UNKNOWN;
1257 }
1258
1259 /*!
1260  *\brief        Safe wrapper for content type string.
1261  *
1262  *\return       const gchar * Pointer to content type string.
1263  */
1264 gchar *procmime_get_content_type_str(MimeMediaType type,
1265                                            const char *subtype)
1266 {
1267         const gchar *type_str = NULL;
1268
1269         if (subtype == NULL || !(type_str = procmime_get_media_type_str(type)))
1270                 return g_strdup("unknown");
1271         return g_strdup_printf("%s/%s", type_str, subtype);
1272 }
1273
1274 static int procmime_parse_mimepart(MimeInfo *parent,
1275                              gchar *content_type,
1276                              gchar *content_encoding,
1277                              gchar *content_description,
1278                              gchar *content_id,
1279                              gchar *content_disposition,
1280                              gchar *content_location,
1281                              const gchar *filename,
1282                              guint offset,
1283                              guint length);
1284
1285 void procmime_parse_message_rfc822(MimeInfo *mimeinfo)
1286 {
1287         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1288                                 {"Content-Transfer-Encoding:",
1289                                                    NULL, FALSE},
1290                                 {"Content-Description:",
1291                                                    NULL, TRUE},
1292                                 {"Content-ID:",
1293                                                    NULL, TRUE},
1294                                 {"Content-Disposition:",
1295                                                    NULL, TRUE},
1296                                 {"Content-Location:",
1297                                                    NULL, TRUE},
1298                                 {"MIME-Version:",
1299                                                    NULL, TRUE},
1300                                 {NULL,             NULL, FALSE}};
1301         guint content_start, i;
1302         FILE *fp;
1303         gchar *tmp;
1304
1305         procmime_decode_content(mimeinfo);
1306
1307         fp = g_fopen(mimeinfo->data.filename, "rb");
1308         if (fp == NULL) {
1309                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1310                 return;
1311         }
1312         fseek(fp, mimeinfo->offset, SEEK_SET);
1313         procheader_get_header_fields(fp, hentry);
1314         if (hentry[0].body != NULL) {
1315                 tmp = conv_unmime_header(hentry[0].body, NULL);
1316                 g_free(hentry[0].body);
1317                 hentry[0].body = tmp;
1318         }
1319         if (hentry[2].body != NULL) {
1320                 tmp = conv_unmime_header(hentry[2].body, NULL);
1321                 g_free(hentry[2].body);
1322                 hentry[2].body = tmp;
1323         }
1324         if (hentry[4].body != NULL) {
1325                 tmp = conv_unmime_header(hentry[4].body, NULL);
1326                 g_free(hentry[4].body);
1327                 hentry[4].body = tmp;
1328         }
1329         if (hentry[5].body != NULL) {
1330                 tmp = conv_unmime_header(hentry[5].body, NULL);
1331                 g_free(hentry[5].body);
1332                 hentry[5].body = tmp;
1333         }
1334         content_start = ftell(fp);
1335         fclose(fp);
1336
1337         procmime_parse_mimepart(mimeinfo,
1338                                 hentry[0].body, hentry[1].body,
1339                                 hentry[2].body, hentry[3].body,
1340                                 hentry[4].body, hentry[5].body,
1341                                 mimeinfo->data.filename, content_start,
1342                                 mimeinfo->length - (content_start - mimeinfo->offset));
1343
1344         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1345                 g_free(hentry[i].body);
1346                 hentry[i].body = NULL;
1347         }
1348 }
1349
1350 void procmime_parse_multipart(MimeInfo *mimeinfo)
1351 {
1352         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1353                                 {"Content-Transfer-Encoding:",
1354                                                    NULL, FALSE},
1355                                 {"Content-Description:",
1356                                                    NULL, TRUE},
1357                                 {"Content-ID:",
1358                                                    NULL, TRUE},
1359                                 {"Content-Disposition:",
1360                                                    NULL, TRUE},
1361                                 {"Content-Location:",
1362                                                    NULL, TRUE},
1363                                 {NULL,             NULL, FALSE}};
1364         gchar *p, *tmp;
1365         gchar *boundary;
1366         gint boundary_len = 0, lastoffset = -1, i;
1367         gchar buf[BUFFSIZE];
1368         FILE *fp;
1369         int result = 0;
1370
1371         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
1372         if (!boundary)
1373                 return;
1374         boundary_len = strlen(boundary);
1375
1376         procmime_decode_content(mimeinfo);
1377
1378         fp = g_fopen(mimeinfo->data.filename, "rb");
1379         if (fp == NULL) {
1380                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1381                 return;
1382         }
1383         fseek(fp, mimeinfo->offset, SEEK_SET);
1384         while ((p = fgets(buf, sizeof(buf), fp)) != NULL && result == 0) {
1385                 if (ftell(fp) > (mimeinfo->offset + mimeinfo->length))
1386                         break;
1387
1388                 if (IS_BOUNDARY(buf, boundary, boundary_len)) {
1389                         if (lastoffset != -1) {
1390                                 result = procmime_parse_mimepart(mimeinfo,
1391                                                         hentry[0].body, hentry[1].body,
1392                                                         hentry[2].body, hentry[3].body,
1393                                                         hentry[4].body, hentry[5].body,
1394                                                         mimeinfo->data.filename, lastoffset,
1395                                                         (ftell(fp) - strlen(buf)) - lastoffset - 1);
1396                         }
1397
1398                         if (buf[2 + boundary_len]     == '-' &&
1399                             buf[2 + boundary_len + 1] == '-')
1400                                 break;
1401
1402                         for (i = 0; i < (sizeof hentry / sizeof hentry[0]) ; i++) {
1403                                 g_free(hentry[i].body);
1404                                 hentry[i].body = NULL;
1405                         }
1406                         procheader_get_header_fields(fp, hentry);
1407                         if (hentry[0].body != NULL) {
1408                                 tmp = conv_unmime_header(hentry[0].body, NULL);
1409                                 g_free(hentry[0].body);
1410                                 hentry[0].body = tmp;
1411                         }
1412                         if (hentry[2].body != NULL) {
1413                                 tmp = conv_unmime_header(hentry[2].body, NULL);
1414                                 g_free(hentry[2].body);
1415                                 hentry[2].body = tmp;
1416                         }
1417                         if (hentry[4].body != NULL) {
1418                                 tmp = conv_unmime_header(hentry[4].body, NULL);
1419                                 g_free(hentry[4].body);
1420                                 hentry[4].body = tmp;
1421                         }
1422                         if (hentry[5].body != NULL) {
1423                                 tmp = conv_unmime_header(hentry[5].body, NULL);
1424                                 g_free(hentry[5].body);
1425                                 hentry[5].body = tmp;
1426                         }
1427                         lastoffset = ftell(fp);
1428                 }
1429         }
1430         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1431                 g_free(hentry[i].body);
1432                 hentry[i].body = NULL;
1433         }
1434         fclose(fp);
1435 }
1436
1437 static void parse_parameters(const gchar *parameters, GHashTable *table)
1438 {
1439         gchar *params, *param, *next;
1440         GSList *convlist = NULL, *concatlist = NULL, *cur;
1441
1442         params = g_strdup(parameters);
1443         param = params;
1444         next = params;
1445         for (; next != NULL; param = next) {
1446                 gchar *attribute, *value, *tmp;
1447                 gint len;
1448                 gboolean convert = FALSE;
1449
1450                 next = strchr_with_skip_quote(param, '"', ';');
1451                 if (next != NULL) {
1452                         next[0] = '\0';
1453                         next++;
1454                 }
1455
1456                 g_strstrip(param);
1457
1458                 attribute = param;
1459                 value = strchr(attribute, '=');
1460                 if (value == NULL)
1461                         continue;
1462
1463                 value[0] = '\0';
1464                 value++;
1465                 while (value[0] == ' ')
1466                         value++;
1467
1468                 g_strdown(attribute);
1469
1470                 len = strlen(attribute);
1471                 if (attribute[len - 1] == '*') {
1472                         gchar *srcpos, *dstpos, *endpos;
1473
1474                         convert = TRUE;
1475                         attribute[len - 1] = '\0';
1476
1477                         srcpos = value;
1478                         dstpos = value;
1479                         endpos = value + strlen(value);
1480                         while (srcpos < endpos) {
1481                                 if (*srcpos != '%')
1482                                         *dstpos = *srcpos;
1483                                 else {
1484                                         guchar dstvalue;
1485
1486                                         if (!get_hex_value(&dstvalue, srcpos[1], srcpos[2]))
1487                                                 *dstpos = '?';
1488                                         else
1489                                                 *dstpos = dstvalue;
1490                                         srcpos += 2;
1491                                 }
1492                                 srcpos++;
1493                                 dstpos++;
1494                         }
1495                         *dstpos = '\0';
1496                 } else {
1497                         if (value[0] == '"')
1498                                 extract_quote(value, '"');
1499                         else if ((tmp = strchr(value, ' ')) != NULL)
1500                                 *tmp = '\0';
1501                 }
1502
1503                 if (attribute) {
1504                         while (attribute[0] == ' ')
1505                                 attribute++;
1506                         while (attribute[strlen(attribute)-1] == ' ')
1507                                 attribute[strlen(attribute)-1] = '\0';
1508                 }
1509                 if (value) {
1510                         while (value[0] == ' ')
1511                                 value++;
1512                         while (value[strlen(value)-1] == ' ')
1513                                 value[strlen(value)-1] = '\0';
1514                 }
1515                 if (strrchr(attribute, '*') != NULL) {
1516                         gchar *tmpattr;
1517
1518                         tmpattr = g_strdup(attribute);
1519                         tmp = strrchr(tmpattr, '*');
1520                         tmp[0] = '\0';
1521
1522                         if ((tmp[1] == '0') && (tmp[2] == '\0') &&
1523                             (g_slist_find_custom(concatlist, attribute, g_str_equal) == NULL))
1524                                 concatlist = g_slist_prepend(concatlist, g_strdup(tmpattr));
1525
1526                         if (convert && (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL))
1527                                 convlist = g_slist_prepend(convlist, g_strdup(tmpattr));
1528
1529                         g_free(tmpattr);
1530                 } else if (convert) {
1531                         if (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL)
1532                                 convlist = g_slist_prepend(convlist, g_strdup(attribute));
1533                 }
1534
1535                 if (g_hash_table_lookup(table, attribute) == NULL)
1536                         g_hash_table_insert(table, g_strdup(attribute), g_strdup(value));
1537         }
1538
1539         for (cur = concatlist; cur != NULL; cur = g_slist_next(cur)) {
1540                 gchar *attribute, *attrwnum, *partvalue;
1541                 gint n = 0;
1542                 GString *value;
1543
1544                 attribute = (gchar *) cur->data;
1545                 value = g_string_sized_new(64);
1546
1547                 attrwnum = g_strdup_printf("%s*%d", attribute, n);
1548                 while ((partvalue = g_hash_table_lookup(table, attrwnum)) != NULL) {
1549                         g_string_append(value, partvalue);
1550
1551                         g_free(attrwnum);
1552                         n++;
1553                         attrwnum = g_strdup_printf("%s*%d", attribute, n);
1554                 }
1555                 g_free(attrwnum);
1556
1557                 g_hash_table_insert(table, g_strdup(attribute), g_strdup(value->str));
1558                 g_string_free(value, TRUE);
1559         }
1560         slist_free_strings(concatlist);
1561         g_slist_free(concatlist);
1562
1563         for (cur = convlist; cur != NULL; cur = g_slist_next(cur)) {
1564                 gchar *attribute, *key, *value;
1565                 gchar *charset, *lang, *oldvalue, *newvalue;
1566
1567                 attribute = (gchar *) cur->data;
1568                 if (!g_hash_table_lookup_extended(
1569                         table, attribute, (gpointer *)(gchar *) &key, (gpointer *)(gchar *) &value))
1570                         continue;
1571
1572                 charset = value;
1573                 lang = strchr(charset, '\'');
1574                 if (lang == NULL)
1575                         continue;
1576                 lang[0] = '\0';
1577                 lang++;
1578                 oldvalue = strchr(lang, '\'');
1579                 if (oldvalue == NULL)
1580                         continue;
1581                 oldvalue[0] = '\0';
1582                 oldvalue++;
1583
1584                 newvalue = conv_codeset_strdup(oldvalue, charset, CS_UTF_8);
1585
1586                 g_hash_table_remove(table, attribute);
1587                 g_free(key);
1588                 g_free(value);
1589
1590                 g_hash_table_insert(table, g_strdup(attribute), newvalue);
1591         }
1592         slist_free_strings(convlist);
1593         g_slist_free(convlist);
1594
1595         g_free(params);
1596 }
1597
1598 static void procmime_parse_content_type(const gchar *content_type, MimeInfo *mimeinfo)
1599 {
1600         g_return_if_fail(content_type != NULL);
1601         g_return_if_fail(mimeinfo != NULL);
1602
1603         /* RFC 2045, page 13 says that the mime subtype is MANDATORY;
1604          * if it's not available we use the default Content-Type */
1605         if ((content_type[0] == '\0') || (strchr(content_type, '/') == NULL)) {
1606                 mimeinfo->type = MIMETYPE_TEXT;
1607                 mimeinfo->subtype = g_strdup("plain");
1608                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1609                                        "charset") == NULL) {
1610                         g_hash_table_insert(mimeinfo->typeparameters,
1611                                     g_strdup("charset"),
1612                                     g_strdup(
1613                                         conv_get_locale_charset_str_no_utf8()));
1614                 }
1615         } else {
1616                 gchar *type, *subtype, *params;
1617
1618                 type = g_strdup(content_type);
1619                 subtype = strchr(type, '/') + 1;
1620                 *(subtype - 1) = '\0';
1621                 if ((params = strchr(subtype, ';')) != NULL) {
1622                         params[0] = '\0';
1623                         params++;
1624                 }
1625
1626                 mimeinfo->type = procmime_get_media_type(type);
1627                 mimeinfo->subtype = g_strdup(subtype);
1628
1629                 /* Get mimeinfo->typeparameters */
1630                 if (params != NULL)
1631                         parse_parameters(params, mimeinfo->typeparameters);
1632
1633                 g_free(type);
1634         }
1635 }
1636
1637 static void procmime_parse_content_disposition(const gchar *content_disposition, MimeInfo *mimeinfo)
1638 {
1639         gchar *tmp, *params;
1640
1641         g_return_if_fail(content_disposition != NULL);
1642         g_return_if_fail(mimeinfo != NULL);
1643
1644         tmp = g_strdup(content_disposition);
1645         if ((params = strchr(tmp, ';')) != NULL) {
1646                 params[0] = '\0';
1647                 params++;
1648         }
1649         g_strstrip(tmp);
1650
1651         if (!g_ascii_strcasecmp(tmp, "inline"))
1652                 mimeinfo->disposition = DISPOSITIONTYPE_INLINE;
1653         else if (!g_ascii_strcasecmp(tmp, "attachment"))
1654                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1655         else
1656                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1657
1658         if (params != NULL)
1659                 parse_parameters(params, mimeinfo->dispositionparameters);
1660
1661         g_free(tmp);
1662 }
1663
1664
1665 static void procmime_parse_content_encoding(const gchar *content_encoding, MimeInfo *mimeinfo)
1666 {
1667         struct EncodingTable *enc_table;
1668
1669         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1670                 if (g_ascii_strcasecmp(enc_table->str, content_encoding) == 0) {
1671                         mimeinfo->encoding_type = enc_table->enc_type;
1672                         return;
1673                 }
1674         }
1675         mimeinfo->encoding_type = ENC_UNKNOWN;
1676         return;
1677 }
1678
1679 static int procmime_parse_mimepart(MimeInfo *parent,
1680                              gchar *content_type,
1681                              gchar *content_encoding,
1682                              gchar *content_description,
1683                              gchar *content_id,
1684                              gchar *content_disposition,
1685                              gchar *content_location,
1686                              const gchar *filename,
1687                              guint offset,
1688                              guint length)
1689 {
1690         MimeInfo *mimeinfo;
1691
1692         /* Create MimeInfo */
1693         mimeinfo = procmime_mimeinfo_new();
1694         mimeinfo->content = MIMECONTENT_FILE;
1695         if (parent != NULL) {
1696                 if (g_node_depth(parent->node) > 32) {
1697                         /* 32 is an arbitrary value
1698                          * this avoids DOSsing ourselves
1699                          * with enormous messages
1700                          */
1701                         procmime_mimeinfo_free_all(mimeinfo);
1702                         return -1;
1703                 }
1704                 g_node_append(parent->node, mimeinfo->node);
1705         }
1706         mimeinfo->data.filename = g_strdup(filename);
1707         mimeinfo->offset = offset;
1708         mimeinfo->length = length;
1709
1710         if (content_type != NULL) {
1711                 procmime_parse_content_type(content_type, mimeinfo);
1712         } else {
1713                 mimeinfo->type = MIMETYPE_TEXT;
1714                 mimeinfo->subtype = g_strdup("plain");
1715                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1716                                        "charset") == NULL) {
1717                         g_hash_table_insert(mimeinfo->typeparameters,
1718                                     g_strdup("charset"),
1719                                     g_strdup(
1720                                         conv_get_locale_charset_str_no_utf8()));
1721                 }
1722         }
1723
1724         if (content_encoding != NULL) {
1725                 procmime_parse_content_encoding(content_encoding, mimeinfo);
1726         } else {
1727                 mimeinfo->encoding_type = ENC_UNKNOWN;
1728         }
1729
1730         if (content_description != NULL)
1731                 mimeinfo->description = g_strdup(content_description);
1732         else
1733                 mimeinfo->description = NULL;
1734
1735         if (content_id != NULL)
1736                 mimeinfo->id = g_strdup(content_id);
1737         else
1738                 mimeinfo->id = NULL;
1739
1740         if (content_location != NULL)
1741                 mimeinfo->location = g_strdup(content_location);
1742         else
1743                 mimeinfo->location = NULL;
1744
1745         if (content_disposition != NULL)
1746                 procmime_parse_content_disposition(content_disposition, mimeinfo);
1747         else
1748                 mimeinfo->disposition = DISPOSITIONTYPE_UNKNOWN;
1749
1750         /* Call parser for mime type */
1751         switch (mimeinfo->type) {
1752                 case MIMETYPE_MESSAGE:
1753                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
1754                                 procmime_parse_message_rfc822(mimeinfo);
1755                         }
1756                         break;
1757
1758                 case MIMETYPE_MULTIPART:
1759                         procmime_parse_multipart(mimeinfo);
1760                         break;
1761
1762                 default:
1763                         break;
1764         }
1765
1766         return 0;
1767 }
1768
1769 static gchar *typenames[] = {
1770     "text",
1771     "image",
1772     "audio",
1773     "video",
1774     "application",
1775     "message",
1776     "multipart",
1777     "unknown",
1778 };
1779
1780 static gboolean output_func(GNode *node, gpointer data)
1781 {
1782         guint i, depth;
1783         MimeInfo *mimeinfo = (MimeInfo *) node->data;
1784
1785         depth = g_node_depth(node);
1786         for (i = 0; i < depth; i++)
1787                 printf("    ");
1788         printf("%s/%s (offset:%d length:%d encoding: %d)\n", typenames[mimeinfo->type], mimeinfo->subtype, mimeinfo->offset, mimeinfo->length, mimeinfo->encoding_type);
1789
1790         return FALSE;
1791 }
1792
1793 static void output_mime_structure(MimeInfo *mimeinfo, int indent)
1794 {
1795         g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, output_func, NULL);
1796 }
1797
1798 MimeInfo *procmime_scan_file_with_offset(const gchar *filename, int offset)
1799 {
1800         MimeInfo *mimeinfo;
1801         struct stat buf;
1802
1803         stat(filename, &buf);
1804
1805         mimeinfo = procmime_mimeinfo_new();
1806         mimeinfo->content = MIMECONTENT_FILE;
1807         mimeinfo->encoding_type = ENC_UNKNOWN;
1808         mimeinfo->type = MIMETYPE_MESSAGE;
1809         mimeinfo->subtype = g_strdup("rfc822");
1810         mimeinfo->data.filename = g_strdup(filename);
1811         mimeinfo->offset = offset;
1812         mimeinfo->length = buf.st_size - offset;
1813
1814         procmime_parse_message_rfc822(mimeinfo);
1815         if (debug_get_mode())
1816                 output_mime_structure(mimeinfo, 0);
1817
1818         return mimeinfo;
1819 }
1820
1821 MimeInfo *procmime_scan_file(const gchar *filename)
1822 {
1823         MimeInfo *mimeinfo;
1824
1825         g_return_val_if_fail(filename != NULL, NULL);
1826
1827         mimeinfo = procmime_scan_file_with_offset(filename, 0);
1828
1829         return mimeinfo;
1830 }
1831
1832 MimeInfo *procmime_scan_queue_file(const gchar *filename)
1833 {
1834         FILE *fp;
1835         MimeInfo *mimeinfo;
1836         gchar buf[BUFFSIZE];
1837         gint offset = 0;
1838
1839         g_return_val_if_fail(filename != NULL, NULL);
1840
1841         /* Open file */
1842         if ((fp = g_fopen(filename, "rb")) == NULL)
1843                 return NULL;
1844         /* Skip queue header */
1845         while (fgets(buf, sizeof(buf), fp) != NULL)
1846                 if (buf[0] == '\r' || buf[0] == '\n') break;
1847         offset = ftell(fp);
1848         fclose(fp);
1849
1850         mimeinfo = procmime_scan_file_with_offset(filename, offset);
1851
1852         return mimeinfo;
1853 }
1854
1855 typedef enum {
1856     ENC_AS_TOKEN,
1857     ENC_AS_QUOTED_STRING,
1858     ENC_AS_EXTENDED,
1859     ENC_TO_ASCII,
1860 } EncodeAs;
1861
1862 typedef struct _ParametersData {
1863         FILE *fp;
1864         guint len;
1865         guint ascii_only;
1866 } ParametersData;
1867
1868 static void write_parameters(gpointer key, gpointer value, gpointer user_data)
1869 {
1870         gchar *param = key;
1871         gchar *val = value, *valpos, *tmp;
1872         ParametersData *pdata = (ParametersData *)user_data;
1873         GString *buf = g_string_new("");
1874
1875         EncodeAs encas = ENC_AS_TOKEN;
1876
1877         for (valpos = val; *valpos != 0; valpos++) {
1878                 if (!IS_ASCII(*valpos) || *valpos == '"') {
1879                         encas = ENC_AS_EXTENDED;
1880                         break;
1881                 }
1882
1883                 /* CTLs */
1884                 if (((*valpos >= 0) && (*valpos < 037)) || (*valpos == 0177)) {
1885                         encas = ENC_AS_QUOTED_STRING;
1886                         continue;
1887                 }
1888
1889                 /* tspecials + SPACE */
1890                 switch (*valpos) {
1891                 case ' ':
1892                 case '(':
1893                 case ')':
1894                 case '<':
1895                 case '>':
1896                 case '@':
1897                 case ',':
1898                 case ';':
1899                 case ':':
1900                 case '\\':
1901                 case '\'':
1902                 case '/':
1903                 case '[':
1904                 case ']':
1905                 case '?':
1906                 case '=':
1907                         encas = ENC_AS_QUOTED_STRING;
1908                         continue;
1909                 }
1910         }
1911
1912         if (encas == ENC_AS_EXTENDED && pdata->ascii_only == TRUE)
1913                 encas = ENC_TO_ASCII;
1914
1915         switch (encas) {
1916         case ENC_AS_TOKEN:
1917                 g_string_append_printf(buf, "%s=%s", param, val);
1918                 break;
1919
1920         case ENC_TO_ASCII:
1921                 tmp = g_strdup(val);
1922                 g_strcanon(tmp,
1923                         " ()<>@,';:\\/[]?=.0123456789"
1924                         "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1925                         "abcdefghijklmnopqrstuvwxyz",
1926                         '_');
1927                 g_string_append_printf(buf, "%s=\"%s\"", param, tmp);
1928                 g_free(tmp);
1929                 break;
1930
1931         case ENC_AS_QUOTED_STRING:
1932                 g_string_append_printf(buf, "%s=\"%s\"", param, val);
1933                 break;
1934
1935         case ENC_AS_EXTENDED:
1936                 if (!g_utf8_validate(val, -1, NULL))
1937                         g_string_append_printf(buf, "%s*=%s''", param,
1938                                 conv_get_locale_charset_str());
1939                 else
1940                         g_string_append_printf(buf, "%s*=%s''", param,
1941                                 CS_INTERNAL);
1942                 for (valpos = val; *valpos != '\0'; valpos++) {
1943                         if (IS_ASCII(*valpos) && isalnum(*valpos)) {
1944                                 g_string_append_printf(buf, "%c", *valpos);
1945                         } else {
1946                                 gchar hexstr[3] = "XX";
1947                                 get_hex_str(hexstr, *valpos);
1948                                 g_string_append_printf(buf, "%%%s", hexstr);
1949                         }
1950                 }
1951                 break;
1952         }
1953
1954         if (buf->str && strlen(buf->str)) {
1955                 if (pdata->len + strlen(buf->str) + 2 > 76) {
1956                         fprintf(pdata->fp, ";\n %s", buf->str);
1957                         pdata->len = strlen(buf->str) + 1;
1958                 } else {
1959                         fprintf(pdata->fp, "; %s", buf->str);
1960                         pdata->len += strlen(buf->str) + 2;
1961                 }
1962         }
1963         g_string_free(buf, TRUE);
1964 }
1965
1966 void procmime_write_mime_header(MimeInfo *mimeinfo, FILE *fp)
1967 {
1968         struct TypeTable *type_table;
1969         ParametersData *pdata = g_new0(ParametersData, 1);
1970         debug_print("procmime_write_mime_header\n");
1971
1972         pdata->fp = fp;
1973         pdata->ascii_only = FALSE;
1974
1975         for (type_table = mime_type_table; type_table->str != NULL; type_table++)
1976                 if (mimeinfo->type == type_table->type) {
1977                         gchar *buf = g_strdup_printf(
1978                                 "Content-Type: %s/%s", type_table->str, mimeinfo->subtype);
1979                         fprintf(fp, "%s", buf);
1980                         pdata->len = strlen(buf);
1981                         pdata->ascii_only = TRUE;
1982                         g_free(buf);
1983                         break;
1984                 }
1985         g_hash_table_foreach(mimeinfo->typeparameters, write_parameters, pdata);
1986         g_free(pdata);
1987
1988         fprintf(fp, "\n");
1989
1990         if (mimeinfo->encoding_type != ENC_UNKNOWN)
1991                 fprintf(fp, "Content-Transfer-Encoding: %s\n", procmime_get_encoding_str(mimeinfo->encoding_type));
1992
1993         if (mimeinfo->description != NULL)
1994                 fprintf(fp, "Content-Description: %s\n", mimeinfo->description);
1995
1996         if (mimeinfo->id != NULL)
1997                 fprintf(fp, "Content-ID: %s\n", mimeinfo->id);
1998
1999         if (mimeinfo->location != NULL)
2000                 fprintf(fp, "Content-Location: %s\n", mimeinfo->location);
2001
2002         if (mimeinfo->disposition != DISPOSITIONTYPE_UNKNOWN) {
2003                 ParametersData *pdata = g_new0(ParametersData, 1);
2004                 gchar *buf = NULL;
2005                 if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE)
2006                         buf = g_strdup("Content-Disposition: inline");
2007                 else if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT)
2008                         buf = g_strdup("Content-Disposition: attachment");
2009                 else
2010                         buf = g_strdup("Content-Disposition: unknown");
2011
2012                 fprintf(fp, "%s", buf);
2013                 pdata->len = strlen(buf);
2014                 g_free(buf);
2015
2016                 pdata->fp = fp;
2017                 pdata->ascii_only = FALSE;
2018
2019                 g_hash_table_foreach(mimeinfo->dispositionparameters, write_parameters, pdata);
2020                 g_free(pdata);
2021                 fprintf(fp, "\n");
2022         }
2023
2024         fprintf(fp, "\n");
2025 }
2026
2027 gint procmime_write_message_rfc822(MimeInfo *mimeinfo, FILE *fp)
2028 {
2029         FILE *infp;
2030         GNode *childnode;
2031         MimeInfo *child;
2032         gchar buf[BUFFSIZE];
2033         gboolean skip = FALSE;;
2034
2035         debug_print("procmime_write_message_rfc822\n");
2036
2037         /* write header */
2038         switch (mimeinfo->content) {
2039         case MIMECONTENT_FILE:
2040                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2041                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2042                         return -1;
2043                 }
2044                 fseek(infp, mimeinfo->offset, SEEK_SET);
2045                 while (fgets(buf, sizeof(buf), infp) == buf) {
2046                         if (buf[0] == '\n' && buf[1] == '\0')
2047                                 break;
2048                         if (skip && (buf[0] == ' ' || buf[0] == '\t'))
2049                                 continue;
2050                         if (g_ascii_strncasecmp(buf, "Mime-Version:", 13) == 0 ||
2051                             g_ascii_strncasecmp(buf, "Content-Type:", 13) == 0 ||
2052                             g_ascii_strncasecmp(buf, "Content-Transfer-Encoding:", 26) == 0 ||
2053                             g_ascii_strncasecmp(buf, "Content-Description:", 20) == 0 ||
2054                             g_ascii_strncasecmp(buf, "Content-ID:", 11) == 0 ||
2055                             g_ascii_strncasecmp(buf, "Content-Location:", 17) == 0 ||
2056                             g_ascii_strncasecmp(buf, "Content-Disposition:", 20) == 0) {
2057                                 skip = TRUE;
2058                                 continue;
2059                         }
2060                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2061                         skip = FALSE;
2062                 }
2063                 fclose(infp);
2064                 break;
2065
2066         case MIMECONTENT_MEM:
2067                 fwrite(mimeinfo->data.mem,
2068                                 sizeof(gchar),
2069                                 strlen(mimeinfo->data.mem),
2070                                 fp);
2071                 break;
2072
2073         default:
2074                 break;
2075         }
2076
2077         childnode = mimeinfo->node->children;
2078         if (childnode == NULL)
2079                 return -1;
2080
2081         child = (MimeInfo *) childnode->data;
2082         fprintf(fp, "Mime-Version: 1.0\n");
2083         procmime_write_mime_header(child, fp);
2084         return procmime_write_mimeinfo(child, fp);
2085 }
2086
2087 gint procmime_write_multipart(MimeInfo *mimeinfo, FILE *fp)
2088 {
2089         FILE *infp;
2090         GNode *childnode;
2091         gchar *boundary, *str, *str2;
2092         gchar buf[BUFFSIZE];
2093         gboolean firstboundary;
2094
2095         debug_print("procmime_write_multipart\n");
2096
2097         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
2098
2099         switch (mimeinfo->content) {
2100         case MIMECONTENT_FILE:
2101                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2102                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2103                         return -1;
2104                 }
2105                 fseek(infp, mimeinfo->offset, SEEK_SET);
2106                 while (fgets(buf, sizeof(buf), infp) == buf) {
2107                         if (IS_BOUNDARY(buf, boundary, strlen(boundary)))
2108                                 break;
2109                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2110                 }
2111                 fclose(infp);
2112                 break;
2113
2114         case MIMECONTENT_MEM:
2115                 str = g_strdup(mimeinfo->data.mem);
2116                 if (((str2 = strstr(str, boundary)) != NULL) && ((str2 - str) >= 2) &&
2117                     (*(str2 - 1) == '-') && (*(str2 - 2) == '-'))
2118                         *(str2 - 2) = '\0';
2119                 fwrite(str, sizeof(gchar), strlen(str), fp);
2120                 g_free(str);
2121                 break;
2122
2123         default:
2124                 break;
2125         }
2126
2127         childnode = mimeinfo->node->children;
2128         firstboundary = TRUE;
2129         while (childnode != NULL) {
2130                 MimeInfo *child = childnode->data;
2131
2132                 if (firstboundary)
2133                         firstboundary = FALSE;
2134                 else
2135                         fprintf(fp, "\n");
2136                 fprintf(fp, "--%s\n", boundary);
2137
2138                 procmime_write_mime_header(child, fp);
2139                 if (procmime_write_mimeinfo(child, fp) < 0)
2140                         return -1;
2141
2142                 childnode = g_node_next_sibling(childnode);
2143         }
2144         fprintf(fp, "\n--%s--\n", boundary);
2145
2146         return 0;
2147 }
2148
2149 gint procmime_write_mimeinfo(MimeInfo *mimeinfo, FILE *fp)
2150 {
2151         FILE *infp;
2152
2153         debug_print("procmime_write_mimeinfo\n");
2154
2155         if (G_NODE_IS_LEAF(mimeinfo->node)) {
2156                 switch (mimeinfo->content) {
2157                 case MIMECONTENT_FILE:
2158                         if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2159                                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2160                                 return -1;
2161                         }
2162                         copy_file_part_to_fp(infp, mimeinfo->offset, mimeinfo->length, fp);
2163                         fclose(infp);
2164                         return 0;
2165
2166                 case MIMECONTENT_MEM:
2167                         fwrite(mimeinfo->data.mem,
2168                                         sizeof(gchar),
2169                                         strlen(mimeinfo->data.mem),
2170                                         fp);
2171                         return 0;
2172
2173                 default:
2174                         return 0;
2175                 }
2176         } else {
2177                 /* Call writer for mime type */
2178                 switch (mimeinfo->type) {
2179                 case MIMETYPE_MESSAGE:
2180                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
2181                                 return procmime_write_message_rfc822(mimeinfo, fp);
2182                         }
2183                         break;
2184
2185                 case MIMETYPE_MULTIPART:
2186                         return procmime_write_multipart(mimeinfo, fp);
2187
2188                 default:
2189                         break;
2190                 }
2191
2192                 return -1;
2193         }
2194
2195         return 0;
2196 }
2197
2198 gchar *procmime_get_part_file_name(MimeInfo *mimeinfo)
2199 {
2200         gchar *base;
2201
2202         if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2203                 base = g_strdup("mimetmp.html");
2204         else {
2205                 const gchar *basetmp;
2206                 gchar *basename;
2207
2208                 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
2209                 if (basetmp == NULL)
2210                         basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
2211                 if (basetmp == NULL)
2212                         basetmp = "mimetmp";
2213                 basename = g_path_get_basename(basetmp);
2214                 if (*basename == '\0') {
2215                         g_free(basename);
2216                         basename = g_strdup("mimetmp");
2217                 }
2218                 base = conv_filename_from_utf8(basename);
2219                 g_free(basename);
2220                 subst_for_shellsafe_filename(base);
2221         }
2222
2223         return base;
2224 }
2225