src/procmime.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2004 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 #include <locale.h>
  32 #include <ctype.h>
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #include <unistd.h>
  36
  37 #include "procmime.h"
  38 #include "procheader.h"
  39 #include "base64.h"
  40 #include "quoted-printable.h"
  41 #include "uuencode.h"
  42 #include "unmime.h"
  43 #include "html.h"
  44 #include "enriched.h"
  45 #include "codeconv.h"
  46 #include "utils.h"
  47 #include "prefs_common.h"
  48 #include "prefs_gtk.h"
  49
  50 static GHashTable *procmime_get_mime_type_table (void);
  51
  52 MimeInfo *procmime_mimeinfo_new(void)
  53 {
  54         MimeInfo *mimeinfo;
  55
  56         mimeinfo = g_new0(MimeInfo, 1);
  57         mimeinfo->content        = MIMECONTENT_EMPTY;
  58         mimeinfo->data.filename  = NULL;
  59
  60         mimeinfo->type           = MIMETYPE_UNKNOWN;
  61         mimeinfo->encoding_type  = ENC_UNKNOWN;
  62         mimeinfo->typeparameters = g_hash_table_new(g_str_hash, g_str_equal);
  63
  64         mimeinfo->disposition    = DISPOSITIONTYPE_UNKNOWN;
  65         mimeinfo->dispositionparameters
  66                                  = g_hash_table_new(g_str_hash, g_str_equal);
  67
  68         mimeinfo->node           = g_node_new(mimeinfo);
  69
  70         return mimeinfo;
  71 }
  72
  73 static gboolean procmime_mimeinfo_parameters_destroy(gpointer key, gpointer value, gpointer user_data)
  74 {
  75         g_free(key);
  76         g_free(value);
  77
  78         return TRUE;
  79 }
  80
  81 static gchar *forced_charset = NULL;
  82
  83 void procmime_force_charset(const gchar *str)
  84 {
  85         g_free(forced_charset);
  86         forced_charset = NULL;
  87         if (str)
  88                 forced_charset = g_strdup(str);
  89 }
  90
  91 static EncodingType forced_encoding = 0;
  92
  93 void procmime_force_encoding(EncodingType encoding)
  94 {
  95         forced_encoding = encoding;
  96 }
  97
  98 static gboolean free_func(GNode *node, gpointer data)
  99 {
 100         MimeInfo *mimeinfo = (MimeInfo *) node->data;
 101
 102         switch (mimeinfo->content) {
 103         case MIMECONTENT_FILE:
 104                 if (mimeinfo->tmp)
 105                         g_unlink(mimeinfo->data.filename);
 106                 g_free(mimeinfo->data.filename);
 107                 break;
 108
 109         case MIMECONTENT_MEM:
 110                 if (mimeinfo->tmp)
 111                         g_free(mimeinfo->data.mem);
 112         default:
 113                 break;
 114         }
 115
 116         g_free(mimeinfo->subtype);
 117         g_free(mimeinfo->description);
 118         g_free(mimeinfo->id);
 119
 120         g_hash_table_foreach_remove(mimeinfo->typeparameters,
 121                 procmime_mimeinfo_parameters_destroy, NULL);
 122         g_hash_table_destroy(mimeinfo->typeparameters);
 123         g_hash_table_foreach_remove(mimeinfo->dispositionparameters,
 124                 procmime_mimeinfo_parameters_destroy, NULL);
 125         g_hash_table_destroy(mimeinfo->dispositionparameters);
 126
 127         if (mimeinfo->privacy)
 128                 privacy_free_privacydata(mimeinfo->privacy);
 129
 130         g_free(mimeinfo);
 131
 132         return FALSE;
 133 }
 134
 135 void procmime_mimeinfo_free_all(MimeInfo *mimeinfo)
 136 {
 137         GNode *node;
 138
 139         if (!mimeinfo)
 140                 return;
 141
 142         node = mimeinfo->node;
 143         g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_ALL, -1, free_func, NULL);
 144
 145         g_node_destroy(node);
 146 }
 147
 148 #if 0 /* UNUSED */
 149 MimeInfo *procmime_mimeinfo_insert(MimeInfo *parent, MimeInfo *mimeinfo)
 150 {
 151         MimeInfo *child = parent->children;
 152
 153         if (!child)
 154                 parent->children = mimeinfo;
 155         else {
 156                 while (child->next != NULL)
 157                         child = child->next;
 158
 159                 child->next = mimeinfo;
 160         }
 161
 162         mimeinfo->parent = parent;
 163         mimeinfo->level = parent->level + 1;
 164
 165         return mimeinfo;
 166 }
 167
 168 void procmime_mimeinfo_replace(MimeInfo *old, MimeInfo *new)
 169 {
 170         MimeInfo *parent = old->parent;
 171         MimeInfo *child;
 172
 173         g_return_if_fail(parent != NULL);
 174         g_return_if_fail(new->next == NULL);
 175
 176         for (child = parent->children; child && child != old;
 177              child = child->next)
 178                 ;
 179         if (!child) {
 180                 g_warning("oops: parent can't find it's own child");
 181                 return;
 182         }
 183         procmime_mimeinfo_free_all(old);
 184
 185         if (child == parent->children) {
 186                 new->next = parent->children->next;
 187                 parent->children = new;
 188         } else {
 189                 new->next = child->next;
 190                 child = new;
 191         }
 192 }
 193 #endif
 194
 195 MimeInfo *procmime_mimeinfo_parent(MimeInfo *mimeinfo)
 196 {
 197         g_return_val_if_fail(mimeinfo != NULL, NULL);
 198         g_return_val_if_fail(mimeinfo->node != NULL, NULL);
 199
 200         if (mimeinfo->node->parent == NULL)
 201                 return NULL;
 202         return (MimeInfo *) mimeinfo->node->parent->data;
 203 }
 204
 205 MimeInfo *procmime_mimeinfo_next(MimeInfo *mimeinfo)
 206 {
 207         g_return_val_if_fail(mimeinfo != NULL, NULL);
 208         g_return_val_if_fail(mimeinfo->node != NULL, NULL);
 209
 210         if (mimeinfo->node->children)
 211                 return (MimeInfo *) mimeinfo->node->children->data;
 212         if (mimeinfo->node->next)
 213                 return (MimeInfo *) mimeinfo->node->next->data;
 214
 215         if (mimeinfo->node->parent == NULL)
 216                 return NULL;
 217
 218         while (mimeinfo->node->parent != NULL) {
 219                 mimeinfo = (MimeInfo *) mimeinfo->node->parent->data;
 220                 if (mimeinfo->node->next)
 221                         return (MimeInfo *) mimeinfo->node->next->data;
 222         }
 223
 224         return NULL;
 225 }
 226
 227 MimeInfo *procmime_scan_message(MsgInfo *msginfo)
 228 {
 229         gchar *filename;
 230         MimeInfo *mimeinfo;
 231
 232         filename = procmsg_get_message_file_path(msginfo);
 233         if (!filename || !is_file_exist(filename)) {
 234                 g_free(filename);
 235                 filename = procmsg_get_message_file(msginfo);
 236         }
 237         if (!filename || !is_file_exist(filename))
 238                 return NULL;
 239
 240         if (!folder_has_parent_of_type(msginfo->folder, F_QUEUE) &&
 241             !folder_has_parent_of_type(msginfo->folder, F_DRAFT))
 242                 mimeinfo = procmime_scan_file(filename);
 243         else
 244                 mimeinfo = procmime_scan_queue_file(filename);
 245         g_free(filename);
 246
 247         return mimeinfo;
 248 }
 249
 250 enum
 251 {
 252         H_CONTENT_TRANSFER_ENCODING = 0,
 253         H_CONTENT_TYPE              = 1,
 254         H_CONTENT_DISPOSITION       = 2,
 255         H_CONTENT_DESCRIPTION       = 3,
 256         H_SUBJECT                   = 4
 257 };
 258
 259 const gchar *procmime_mimeinfo_get_parameter(MimeInfo *mimeinfo, const gchar *name)
 260 {
 261         const gchar *value;
 262
 263         g_return_val_if_fail(mimeinfo != NULL, NULL);
 264         g_return_val_if_fail(name != NULL, NULL);
 265
 266         value = g_hash_table_lookup(mimeinfo->dispositionparameters, name);
 267         if (value == NULL)
 268                 value = g_hash_table_lookup(mimeinfo->typeparameters, name);
 269
 270         return value;
 271 }
 272
 273 gboolean procmime_decode_content(MimeInfo *mimeinfo)
 274 {
 275         gchar buf[BUFFSIZE];
 276         gint readend;
 277         gchar *tmpfilename;
 278         FILE *outfp, *infp;
 279         struct stat statbuf;
 280         gboolean tmp_file = FALSE;
 281
 282         EncodingType encoding = forced_encoding
 283                                 ? forced_encoding
 284                                 : mimeinfo->encoding_type;
 285
 286         g_return_val_if_fail(mimeinfo != NULL, FALSE);
 287
 288         if (encoding == ENC_UNKNOWN ||
 289             encoding == ENC_BINARY)
 290                 return TRUE;
 291
 292         infp = g_fopen(mimeinfo->data.filename, "rb");
 293         if (!infp) {
 294                 perror("fopen");
 295                 return FALSE;
 296         }
 297         fseek(infp, mimeinfo->offset, SEEK_SET);
 298
 299         outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 300         if (!outfp) {
 301                 perror("tmpfile");
 302                 return FALSE;
 303         }
 304         tmp_file = TRUE;
 305         readend = mimeinfo->offset + mimeinfo->length;
 306
 307         if (encoding == ENC_QUOTED_PRINTABLE) {
 308                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 309                         gint len;
 310                         len = qp_decode_line(buf);
 311                         fwrite(buf, 1, len, outfp);
 312                 }
 313         } else if (encoding == ENC_BASE64) {
 314                 gchar outbuf[BUFFSIZE];
 315                 gint len;
 316                 Base64Decoder *decoder;
 317                 gboolean got_error = FALSE;
 318                 gboolean uncanonicalize = FALSE;
 319                 FILE *tmpfp = outfp;
 320
 321                 if (mimeinfo->type == MIMETYPE_TEXT ||
 322                     mimeinfo->type == MIMETYPE_MESSAGE) {
 323                         uncanonicalize = TRUE;
 324                         tmpfp = my_tmpfile();
 325                         if (!tmpfp) {
 326                                 perror("tmpfile");
 327                                 if (tmp_file) fclose(outfp);
 328                                 return FALSE;
 329                         }
 330                 }
 331
 332                 decoder = base64_decoder_new();
 333                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 334                         len = base64_decoder_decode(decoder, buf, outbuf);
 335                         if (len < 0 && !got_error) {
 336                                 g_warning("Bad BASE64 content.\n");
 337                                 fwrite(_("[Error decoding BASE64]\n"),
 338                                         sizeof(gchar),
 339                                         strlen(_("[Error decoding BASE64]\n")),
 340                                         tmpfp);
 341                                 got_error = TRUE;
 342                                 continue;
 343                         } else if (len >= 0) {
 344                                 /* print out the error message only once
 345                                  * per block */
 346                                 fwrite(outbuf, sizeof(gchar), len, tmpfp);
 347                                 got_error = FALSE;
 348                         }
 349                 }
 350                 base64_decoder_free(decoder);
 351
 352                 if (uncanonicalize) {
 353                         rewind(tmpfp);
 354                         while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
 355                                 strcrchomp(buf);
 356                                 fputs(buf, outfp);
 357                         }
 358                         fclose(tmpfp);
 359                 }
 360         } else if (encoding == ENC_X_UUENCODE) {
 361                 gchar outbuf[BUFFSIZE];
 362                 gint len;
 363                 gboolean flag = FALSE;
 364
 365                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 366                         if (!flag && strncmp(buf,"begin ", 6)) continue;
 367
 368                         if (flag) {
 369                                 len = fromuutobits(outbuf, buf);
 370                                 if (len <= 0) {
 371                                         if (len < 0)
 372                                                 g_warning("Bad UUENCODE content(%d)\n", len);
 373                                         break;
 374                                 }
 375                                 fwrite(outbuf, sizeof(gchar), len, outfp);
 376                         } else
 377                                 flag = TRUE;
 378                 }
 379         } else {
 380                 while ((ftell(infp) < readend) && (fgets(buf, sizeof(buf), infp) != NULL)) {
 381                         fputs(buf, outfp);
 382                 }
 383         }
 384
 385         fclose(outfp);
 386         fclose(infp);
 387
 388         stat(tmpfilename, &statbuf);
 389         if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
 390                 g_unlink(mimeinfo->data.filename);
 391         if (mimeinfo->data.filename != NULL)
 392                 g_free(mimeinfo->data.filename);
 393         mimeinfo->data.filename = tmpfilename;
 394         mimeinfo->tmp = TRUE;
 395         mimeinfo->offset = 0;
 396         mimeinfo->length = statbuf.st_size;
 397         mimeinfo->encoding_type = ENC_BINARY;
 398
 399         return TRUE;
 400 }
 401
 402 #define B64_LINE_SIZE           57
 403 #define B64_BUFFSIZE            77
 404
 405 gboolean procmime_encode_content(MimeInfo *mimeinfo, EncodingType encoding)
 406 {
 407         FILE *infp = NULL, *outfp;
 408         gint len;
 409         gchar *tmpfilename;
 410         struct stat statbuf;
 411
 412         if (mimeinfo->content == MIMECONTENT_EMPTY)
 413                 return TRUE;
 414
 415         if (mimeinfo->encoding_type != ENC_UNKNOWN &&
 416             mimeinfo->encoding_type != ENC_BINARY &&
 417             mimeinfo->encoding_type != ENC_7BIT &&
 418             mimeinfo->encoding_type != ENC_8BIT)
 419                 if(!procmime_decode_content(mimeinfo))
 420                         return FALSE;
 421
 422         outfp = get_tmpfile_in_dir(get_mime_tmp_dir(), &tmpfilename);
 423         if (!outfp) {
 424                 perror("tmpfile");
 425                 return FALSE;
 426         }
 427
 428         if (mimeinfo->content == MIMECONTENT_FILE) {
 429                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
 430                         g_warning("Can't open file %s\n", mimeinfo->data.filename);
 431                         return FALSE;
 432                 }
 433         } else if (mimeinfo->content == MIMECONTENT_MEM) {
 434                 infp = str_open_as_stream(mimeinfo->data.mem);
 435                 if (infp == NULL)
 436                         return FALSE;
 437         }
 438
 439         if (encoding == ENC_BASE64) {
 440                 gchar inbuf[B64_LINE_SIZE], outbuf[B64_BUFFSIZE];
 441                 FILE *tmp_fp = infp;
 442                 gchar *tmp_file = NULL;
 443
 444                 if (mimeinfo->type == MIMETYPE_TEXT ||
 445                      mimeinfo->type == MIMETYPE_MESSAGE) {
 446                         if (mimeinfo->content == MIMECONTENT_FILE) {
 447                                 tmp_file = get_tmp_file();
 448                                 if (canonicalize_file(mimeinfo->data.filename, tmp_file) < 0) {
 449                                         g_free(tmp_file);
 450                                         fclose(infp);
 451                                         return FALSE;
 452                                 }
 453                                 if ((tmp_fp = g_fopen(tmp_file, "rb")) == NULL) {
 454                                         FILE_OP_ERROR(tmp_file, "fopen");
 455                                         g_unlink(tmp_file);
 456                                         g_free(tmp_file);
 457                                         fclose(infp);
 458                                         return FALSE;
 459                                 }
 460                         } else {
 461                                 gchar *out = canonicalize_str(mimeinfo->data.mem);
 462                                 fclose(infp);
 463                                 infp = str_open_as_stream(out);
 464                                 tmp_fp = infp;
 465                                 g_free(out);
 466                                 if (infp == NULL)
 467                                         return FALSE;
 468                         }
 469                 }
 470
 471                 while ((len = fread(inbuf, sizeof(gchar),
 472                                     B64_LINE_SIZE, tmp_fp))
 473                        == B64_LINE_SIZE) {
 474                         base64_encode(outbuf, inbuf, B64_LINE_SIZE);
 475                         fputs(outbuf, outfp);
 476                         fputc('\n', outfp);
 477                 }
 478                 if (len > 0 && feof(tmp_fp)) {
 479                         base64_encode(outbuf, inbuf, len);
 480                         fputs(outbuf, outfp);
 481                         fputc('\n', outfp);
 482                 }
 483
 484                 if (tmp_file) {
 485                         fclose(tmp_fp);
 486                         g_unlink(tmp_file);
 487                         g_free(tmp_file);
 488                 }
 489         } else if (encoding == ENC_QUOTED_PRINTABLE) {
 490                 gchar inbuf[BUFFSIZE], outbuf[BUFFSIZE * 4];
 491
 492                 while (fgets(inbuf, sizeof(inbuf), infp) != NULL) {
 493                         qp_encode_line(outbuf, inbuf);
 494
 495                         if (!strncmp("From ", outbuf, sizeof("From ")-1)) {
 496                                 gchar *tmpbuf = outbuf;
 497
 498                                 tmpbuf += sizeof("From ")-1;
 499
 500                                 fputs("=46rom ", outfp);
 501                                 fputs(tmpbuf, outfp);
 502                         } else
 503                                 fputs(outbuf, outfp);
 504                 }
 505         } else {
 506                 gchar buf[BUFFSIZE];
 507
 508                 while (fgets(buf, sizeof(buf), infp) != NULL) {
 509                         strcrchomp(buf);
 510                         fputs(buf, outfp);
 511                 }
 512         }
 513
 514         fclose(outfp);
 515         fclose(infp);
 516
 517         if (mimeinfo->content == MIMECONTENT_FILE) {
 518                 if (mimeinfo->tmp && (mimeinfo->data.filename != NULL))
 519                         g_unlink(mimeinfo->data.filename);
 520                 g_free(mimeinfo->data.filename);
 521         } else if (mimeinfo->content == MIMECONTENT_MEM) {
 522                 if (mimeinfo->tmp && (mimeinfo->data.mem != NULL))
 523                         g_free(mimeinfo->data.mem);
 524         }
 525
 526         stat(tmpfilename, &statbuf);
 527         mimeinfo->content = MIMECONTENT_FILE;
 528         mimeinfo->data.filename = tmpfilename;
 529         mimeinfo->tmp = TRUE;
 530         mimeinfo->offset = 0;
 531         mimeinfo->length = statbuf.st_size;
 532         mimeinfo->encoding_type = encoding;
 533
 534         return TRUE;
 535 }
 536
 537 gint procmime_get_part(const gchar *outfile, MimeInfo *mimeinfo)
 538 {
 539         FILE *infp, *outfp;
 540         gchar buf[BUFFSIZE];
 541         gint restlength, readlength;
 542
 543         g_return_val_if_fail(outfile != NULL, -1);
 544         g_return_val_if_fail(mimeinfo != NULL, -1);
 545
 546         if (mimeinfo->encoding_type != ENC_BINARY && !procmime_decode_content(mimeinfo))
 547                 return -1;
 548
 549         if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
 550                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
 551                 return -1;
 552         }
 553         if (fseek(infp, mimeinfo->offset, SEEK_SET) < 0) {
 554                 FILE_OP_ERROR(mimeinfo->data.filename, "fseek");
 555                 fclose(infp);
 556                 return -1;
 557         }
 558         if ((outfp = g_fopen(outfile, "wb")) == NULL) {
 559                 FILE_OP_ERROR(outfile, "fopen");
 560                 fclose(infp);
 561                 return -1;
 562         }
 563
 564         restlength = mimeinfo->length;
 565
 566         while ((restlength > 0) && ((readlength = fread(buf, 1, restlength > BUFFSIZE ? BUFFSIZE : restlength, infp)) > 0)) {
 567                 fwrite(buf, 1, readlength, outfp);
 568                 restlength -= readlength;
 569         }
 570
 571         fclose(infp);
 572         if (fclose(outfp) == EOF) {
 573                 FILE_OP_ERROR(outfile, "fclose");
 574                 g_unlink(outfile);
 575                 return -1;
 576         }
 577
 578         return 0;
 579 }
 580
 581 struct ContentRenderer {
 582         char * content_type;
 583         char * renderer;
 584 };
 585
 586 static GList * renderer_list = NULL;
 587
 588 static struct ContentRenderer *
 589 content_renderer_new(char * content_type, char * renderer)
 590 {
 591         struct ContentRenderer * cr;
 592
 593         cr = g_new(struct ContentRenderer, 1);
 594         if (cr == NULL)
 595                 return NULL;
 596
 597         cr->content_type = g_strdup(content_type);
 598         cr->renderer = g_strdup(renderer);
 599
 600         return cr;
 601 }
 602
 603 static void content_renderer_free(struct ContentRenderer * cr)
 604 {
 605         g_free(cr->content_type);
 606         g_free(cr->renderer);
 607         g_free(cr);
 608 }
 609
 610 void renderer_read_config(void)
 611 {
 612         gchar buf[BUFFSIZE];
 613         FILE * f;
 614         gchar * rcpath;
 615
 616         g_list_foreach(renderer_list, (GFunc) content_renderer_free, NULL);
 617         renderer_list = NULL;
 618
 619         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
 620         f = g_fopen(rcpath, "rb");
 621         g_free(rcpath);
 622
 623         if (f == NULL)
 624                 return;
 625
 626         while (fgets(buf, BUFFSIZE, f)) {
 627                 char * p;
 628                 struct ContentRenderer * cr;
 629
 630                 strretchomp(buf);
 631                 p = strchr(buf, ' ');
 632                 if (p == NULL)
 633                         continue;
 634                 * p = 0;
 635
 636                 cr = content_renderer_new(buf, p + 1);
 637                 if (cr == NULL)
 638                         continue;
 639
 640                 renderer_list = g_list_append(renderer_list, cr);
 641         }
 642
 643         fclose(f);
 644 }
 645
 646 void renderer_write_config(void)
 647 {
 648         gchar * rcpath;
 649         PrefFile *pfile;
 650         GList * cur;
 651
 652         rcpath = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S, RENDERER_RC, NULL);
 653
 654         if ((pfile = prefs_write_open(rcpath)) == NULL) {
 655                 g_warning("failed to write configuration to file\n");
 656                 g_free(rcpath);
 657                 return;
 658         }
 659
 660         g_free(rcpath);
 661
 662         for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
 663                 struct ContentRenderer * renderer;
 664                 renderer = cur->data;
 665                 fprintf(pfile->fp, "%s %s\n", renderer->content_type,
 666                         renderer->renderer);
 667         }
 668
 669         if (prefs_file_close(pfile) < 0) {
 670                 g_warning("failed to write configuration to file\n");
 671                 return;
 672         }
 673 }
 674
 675 FILE *procmime_get_text_content(MimeInfo *mimeinfo)
 676 {
 677         FILE *tmpfp, *outfp;
 678         const gchar *src_codeset;
 679         gboolean conv_fail = FALSE;
 680         gchar buf[BUFFSIZE];
 681         gchar *str;
 682         struct ContentRenderer * renderer;
 683         GList * cur;
 684         gchar *tmpfile, *content_type;
 685
 686         g_return_val_if_fail(mimeinfo != NULL, NULL);
 687
 688         if (!procmime_decode_content(mimeinfo))
 689                 return NULL;
 690
 691         tmpfile = procmime_get_tmp_file_name(mimeinfo);
 692         if (tmpfile == NULL)
 693                 return NULL;
 694
 695         if (procmime_get_part(tmpfile, mimeinfo) < 0) {
 696                 g_free(tmpfile);
 697                 return NULL;
 698         }
 699
 700         tmpfp = g_fopen(tmpfile, "rb");
 701         if (tmpfp == NULL) {
 702                 g_free(tmpfile);
 703                 return NULL;
 704         }
 705
 706         if ((outfp = my_tmpfile()) == NULL) {
 707                 perror("tmpfile");
 708                 fclose(tmpfp);
 709                 g_free(tmpfile);
 710                 return NULL;
 711         }
 712
 713         src_codeset = forced_charset
 714                       ? forced_charset :
 715                       procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 716
 717         renderer = NULL;
 718
 719         content_type = procmime_get_content_type_str(mimeinfo->type,
 720                                                      mimeinfo->subtype);
 721         for (cur = renderer_list ; cur != NULL ; cur = cur->next) {
 722                 struct ContentRenderer * cr;
 723
 724                 cr = cur->data;
 725                 if (g_ascii_strcasecmp(cr->content_type, content_type) == 0) {
 726                         renderer = cr;
 727                         break;
 728                 }
 729         }
 730         g_free(content_type);
 731
 732         if (renderer != NULL) {
 733                 FILE * p;
 734                 int oldout;
 735
 736                 oldout = dup(1);
 737
 738                 dup2(fileno(outfp), 1);
 739
 740                 p = popen(renderer->renderer, "w");
 741                 if (p != NULL) {
 742                         size_t count;
 743
 744                         while ((count =
 745                                 fread(buf, sizeof(char), sizeof(buf),
 746                                       tmpfp)) > 0)
 747                                 fwrite(buf, sizeof(char), count, p);
 748                         pclose(p);
 749                 }
 750
 751                 dup2(oldout, 1);
 752 /* CodeConverter seems to have no effect here */
 753         } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "html")) {
 754                 HTMLParser *parser;
 755                 CodeConverter *conv;
 756
 757                 conv = conv_code_converter_new(src_codeset);
 758                 parser = html_parser_new(tmpfp, conv);
 759                 while ((str = html_parse(parser)) != NULL) {
 760                         fputs(str, outfp);
 761                 }
 762                 html_parser_destroy(parser);
 763                 conv_code_converter_destroy(conv);
 764         } else if (mimeinfo->type == MIMETYPE_TEXT && !g_ascii_strcasecmp(mimeinfo->subtype, "enriched")) {
 765                 ERTFParser *parser;
 766                 CodeConverter *conv;
 767
 768                 conv = conv_code_converter_new(src_codeset);
 769                 parser = ertf_parser_new(tmpfp, conv);
 770                 while ((str = ertf_parse(parser)) != NULL) {
 771                         fputs(str, outfp);
 772                 }
 773                 ertf_parser_destroy(parser);
 774                 conv_code_converter_destroy(conv);
 775         } else if (mimeinfo->type == MIMETYPE_TEXT) {
 776                 while (fgets(buf, sizeof(buf), tmpfp) != NULL) {
 777                         str = conv_codeset_strdup(buf, src_codeset, CS_UTF_8);
 778                         if (str) {
 779                                 fputs(str, outfp);
 780                                 g_free(str);
 781                         } else {
 782                                 conv_fail = TRUE;
 783                                 fputs(buf, outfp);
 784                         }
 785                 }
 786         }
 787
 788         if (conv_fail)
 789                 g_warning("procmime_get_text_content(): Code conversion failed.\n");
 790
 791         fclose(tmpfp);
 792         rewind(outfp);
 793         g_unlink(tmpfile);
 794         g_free(tmpfile);
 795
 796         return outfp;
 797 }
 798
 799 /* search the first text part of (multipart) MIME message,
 800    decode, convert it and output to outfp. */
 801 FILE *procmime_get_first_text_content(MsgInfo *msginfo)
 802 {
 803         FILE *outfp = NULL;
 804         MimeInfo *mimeinfo, *partinfo;
 805
 806         g_return_val_if_fail(msginfo != NULL, NULL);
 807
 808         mimeinfo = procmime_scan_message(msginfo);
 809         if (!mimeinfo) return NULL;
 810
 811         partinfo = mimeinfo;
 812         while (partinfo && partinfo->type != MIMETYPE_TEXT) {
 813                 partinfo = procmime_mimeinfo_next(partinfo);
 814         }
 815         if (partinfo)
 816                 outfp = procmime_get_text_content(partinfo);
 817
 818         procmime_mimeinfo_free_all(mimeinfo);
 819
 820         return outfp;
 821 }
 822
 823
 824 static gboolean find_encrypted_func(GNode *node, gpointer data)
 825 {
 826         MimeInfo *mimeinfo = (MimeInfo *) node->data;
 827         MimeInfo **encinfo = (MimeInfo **) data;
 828
 829         if (privacy_mimeinfo_is_encrypted(mimeinfo)) {
 830                 *encinfo = mimeinfo;
 831                 return TRUE;
 832         }
 833
 834         return FALSE;
 835 }
 836
 837 static MimeInfo *find_encrypted_part(MimeInfo *rootinfo)
 838 {
 839         MimeInfo *encinfo = NULL;
 840
 841         g_node_traverse(rootinfo->node, G_IN_ORDER, G_TRAVERSE_ALL, -1,
 842                 find_encrypted_func, &encinfo);
 843
 844         return encinfo;
 845 }
 846
 847 /* search the first encrypted text part of (multipart) MIME message,
 848    decode, convert it and output to outfp. */
 849 FILE *procmime_get_first_encrypted_text_content(MsgInfo *msginfo)
 850 {
 851         FILE *outfp = NULL;
 852         MimeInfo *mimeinfo, *partinfo, *encinfo;
 853
 854         g_return_val_if_fail(msginfo != NULL, NULL);
 855
 856         mimeinfo = procmime_scan_message(msginfo);
 857         if (!mimeinfo) {
 858                 return NULL;
 859         }
 860
 861         partinfo = mimeinfo;
 862         if ((encinfo = find_encrypted_part(partinfo)) != NULL) {
 863                 debug_print("decrypting message part\n");
 864                 if (privacy_mimeinfo_decrypt(encinfo) < 0)
 865                         return NULL;
 866         }
 867         partinfo = mimeinfo;
 868         while (partinfo && partinfo->type != MIMETYPE_TEXT) {
 869                 partinfo = procmime_mimeinfo_next(partinfo);
 870         }
 871
 872         if (partinfo)
 873                 outfp = procmime_get_text_content(partinfo);
 874
 875         procmime_mimeinfo_free_all(mimeinfo);
 876
 877         return outfp;
 878 }
 879
 880 gboolean procmime_msginfo_is_encrypted(MsgInfo *msginfo)
 881 {
 882         MimeInfo *mimeinfo, *partinfo;
 883         gboolean result = FALSE;
 884
 885         g_return_val_if_fail(msginfo != NULL, FALSE);
 886
 887         mimeinfo = procmime_scan_message(msginfo);
 888         if (!mimeinfo) {
 889                 return FALSE;
 890         }
 891
 892         partinfo = mimeinfo;
 893         result = (find_encrypted_part(partinfo) != NULL);
 894         procmime_mimeinfo_free_all(mimeinfo);
 895
 896         return result;
 897 }
 898
 899 gboolean procmime_find_string_part(MimeInfo *mimeinfo, const gchar *filename,
 900                                    const gchar *str, StrFindFunc find_func)
 901 {
 902         FILE *outfp;
 903         gchar buf[BUFFSIZE];
 904
 905         g_return_val_if_fail(mimeinfo != NULL, FALSE);
 906         g_return_val_if_fail(mimeinfo->type == MIMETYPE_TEXT, FALSE);
 907         g_return_val_if_fail(str != NULL, FALSE);
 908         g_return_val_if_fail(find_func != NULL, FALSE);
 909
 910         outfp = procmime_get_text_content(mimeinfo);
 911
 912         if (!outfp)
 913                 return FALSE;
 914
 915         while (fgets(buf, sizeof(buf), outfp) != NULL) {
 916                 strretchomp(buf);
 917                 if (find_func(buf, str)) {
 918                         fclose(outfp);
 919                         return TRUE;
 920                 }
 921         }
 922
 923         fclose(outfp);
 924
 925         return FALSE;
 926 }
 927
 928 gboolean procmime_find_string(MsgInfo *msginfo, const gchar *str,
 929                               StrFindFunc find_func)
 930 {
 931         MimeInfo *mimeinfo;
 932         MimeInfo *partinfo;
 933         gchar *filename;
 934         gboolean found = FALSE;
 935
 936         g_return_val_if_fail(msginfo != NULL, FALSE);
 937         g_return_val_if_fail(str != NULL, FALSE);
 938         g_return_val_if_fail(find_func != NULL, FALSE);
 939
 940         filename = procmsg_get_message_file(msginfo);
 941         if (!filename) return FALSE;
 942         mimeinfo = procmime_scan_message(msginfo);
 943
 944         for (partinfo = mimeinfo; partinfo != NULL;
 945              partinfo = procmime_mimeinfo_next(partinfo)) {
 946                 if (partinfo->type == MIMETYPE_TEXT) {
 947                         if (procmime_find_string_part
 948                                 (partinfo, filename, str, find_func) == TRUE) {
 949                                 found = TRUE;
 950                                 break;
 951                         }
 952                 }
 953         }
 954
 955         procmime_mimeinfo_free_all(mimeinfo);
 956         g_free(filename);
 957
 958         return found;
 959 }
 960
 961 gchar *procmime_get_tmp_file_name(MimeInfo *mimeinfo)
 962 {
 963         static guint32 id = 0;
 964         gchar *base;
 965         gchar *filename;
 966         gchar f_prefix[10];
 967
 968         g_return_val_if_fail(mimeinfo != NULL, NULL);
 969
 970         g_snprintf(f_prefix, sizeof(f_prefix), "%08x.", id++);
 971
 972         if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
 973                 base = g_strdup("mimetmp.html");
 974         else {
 975                 const gchar *basetmp;
 976
 977                 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
 978                 if (basetmp == NULL)
 979                         basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
 980                 if (basetmp == NULL)
 981                         basetmp = "mimetmp";
 982                 basetmp = g_path_get_basename(basetmp);
 983                 if (*basetmp == '\0') basetmp = g_strdup("mimetmp");
 984                 base = conv_filename_from_utf8(basetmp);
 985                 subst_for_shellsafe_filename(base);
 986         }
 987
 988         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 989                                f_prefix, base, NULL);
 990
 991         g_free(base);
 992
 993         return filename;
 994 }
 995
 996 static GList *mime_type_list = NULL;
 997
 998 gchar *procmime_get_mime_type(const gchar *filename)
 999 {
1000         static GHashTable *mime_type_table = NULL;
1001         MimeType *mime_type;
1002         const gchar *p;
1003         gchar *ext = NULL;
1004         gchar *base;
1005
1006         if (!mime_type_table) {
1007                 mime_type_table = procmime_get_mime_type_table();
1008                 if (!mime_type_table) return NULL;
1009         }
1010
1011         base = g_path_get_basename(filename);
1012         if ((p = strrchr(base, '.')) != NULL)
1013                 Xstrdup_a(ext, p + 1, p = NULL );
1014         g_free(base);
1015         if (!p) return NULL;
1016
1017         g_strdown(ext);
1018         mime_type = g_hash_table_lookup(mime_type_table, ext);
1019         if (mime_type) {
1020                 gchar *str;
1021
1022                 str = g_strconcat(mime_type->type, "/", mime_type->sub_type,
1023                                   NULL);
1024                 return str;
1025         }
1026
1027         return NULL;
1028 }
1029
1030 static guint procmime_str_hash(gconstpointer gptr)
1031 {
1032         guint hash_result = 0;
1033         const char *str;
1034
1035         for (str = gptr; str && *str; str++) {
1036                 if (isupper(*str)) hash_result += (*str + ' ');
1037                 else hash_result += *str;
1038         }
1039
1040         return hash_result;
1041 }
1042
1043 static gint procmime_str_equal(gconstpointer gptr1, gconstpointer gptr2)
1044 {
1045         const char *str1 = gptr1;
1046         const char *str2 = gptr2;
1047
1048         return !g_utf8_collate(str1, str2);
1049 }
1050
1051 static GHashTable *procmime_get_mime_type_table(void)
1052 {
1053         GHashTable *table = NULL;
1054         GList *cur;
1055         MimeType *mime_type;
1056         gchar **exts;
1057
1058         if (!mime_type_list) {
1059                 mime_type_list = procmime_get_mime_type_list();
1060                 if (!mime_type_list) return NULL;
1061         }
1062
1063         table = g_hash_table_new(procmime_str_hash, procmime_str_equal);
1064
1065         for (cur = mime_type_list; cur != NULL; cur = cur->next) {
1066                 gint i;
1067                 gchar *key;
1068
1069                 mime_type = (MimeType *)cur->data;
1070
1071                 if (!mime_type->extension) continue;
1072
1073                 exts = g_strsplit(mime_type->extension, " ", 16);
1074                 for (i = 0; exts[i] != NULL; i++) {
1075                         /* make the key case insensitive */
1076                         g_strdown(exts[i]);
1077                         /* use previously dup'd key on overwriting */
1078                         if (g_hash_table_lookup(table, exts[i]))
1079                                 key = exts[i];
1080                         else
1081                                 key = g_strdup(exts[i]);
1082                         g_hash_table_insert(table, key, mime_type);
1083                 }
1084                 g_strfreev(exts);
1085         }
1086
1087         return table;
1088 }
1089
1090 GList *procmime_get_mime_type_list(void)
1091 {
1092         GList *list = NULL;
1093         FILE *fp;
1094         gchar buf[BUFFSIZE];
1095         gchar *p;
1096         gchar *delim;
1097         MimeType *mime_type;
1098         gboolean fp_is_glob_file = TRUE;
1099
1100         if (mime_type_list)
1101                 return mime_type_list;
1102
1103         if ((fp = g_fopen("/usr/share/mime/globs", "rb")) == NULL) {
1104                 fp_is_glob_file = FALSE;
1105                 if ((fp = g_fopen("/etc/mime.types", "rb")) == NULL) {
1106                         if ((fp = g_fopen(SYSCONFDIR "/mime.types", "rb"))
1107                                 == NULL) {
1108                                 FILE_OP_ERROR(SYSCONFDIR "/mime.types",
1109                                         "fopen");
1110                                 return NULL;
1111                         }
1112                 }
1113         }
1114
1115         while (fgets(buf, sizeof(buf), fp) != NULL) {
1116                 p = strchr(buf, '#');
1117                 if (p) *p = '\0';
1118                 g_strstrip(buf);
1119
1120                 p = buf;
1121
1122                 if (fp_is_glob_file) {
1123                         while (*p && !g_ascii_isspace(*p) && (*p!=':')) p++;
1124                 } else {
1125                         while (*p && !g_ascii_isspace(*p)) p++;
1126                 }
1127
1128                 if (*p) {
1129                         *p = '\0';
1130                         p++;
1131                 }
1132                 delim = strchr(buf, '/');
1133                 if (delim == NULL) continue;
1134                 *delim = '\0';
1135
1136                 mime_type = g_new(MimeType, 1);
1137                 mime_type->type = g_strdup(buf);
1138                 mime_type->sub_type = g_strdup(delim + 1);
1139
1140                 if (fp_is_glob_file) {
1141                         while (*p && (g_ascii_isspace(*p)||(*p=='*')||(*p=='.'))) p++;
1142                 } else {
1143                         while (*p && g_ascii_isspace(*p)) p++;
1144                 }
1145
1146                 if (*p)
1147                         mime_type->extension = g_strdup(p);
1148                 else
1149                         mime_type->extension = NULL;
1150
1151                 list = g_list_append(list, mime_type);
1152         }
1153
1154         fclose(fp);
1155
1156         if (!list)
1157                 g_warning("Can't read mime.types\n");
1158
1159         return list;
1160 }
1161
1162 EncodingType procmime_get_encoding_for_charset(const gchar *charset)
1163 {
1164         if (!charset)
1165                 return ENC_8BIT;
1166         else if (!g_ascii_strncasecmp(charset, "ISO-2022-", 9) ||
1167                  !g_ascii_strcasecmp(charset, "US-ASCII"))
1168                 return ENC_7BIT;
1169         else if (!g_ascii_strcasecmp(charset, "ISO-8859-5") ||
1170                  !g_ascii_strncasecmp(charset, "KOI8-", 5) ||
1171                  !g_ascii_strcasecmp(charset, "Windows-1251"))
1172                 return ENC_8BIT;
1173         else if (!g_ascii_strncasecmp(charset, "ISO-8859-", 9))
1174                 return ENC_QUOTED_PRINTABLE;
1175         else
1176                 return ENC_8BIT;
1177 }
1178
1179 EncodingType procmime_get_encoding_for_text_file(const gchar *file)
1180 {
1181         FILE *fp;
1182         guchar buf[BUFFSIZE];
1183         size_t len;
1184         size_t octet_chars = 0;
1185         size_t total_len = 0;
1186         gfloat octet_percentage;
1187
1188         if ((fp = g_fopen(file, "rb")) == NULL) {
1189                 FILE_OP_ERROR(file, "fopen");
1190                 return ENC_UNKNOWN;
1191         }
1192
1193         while ((len = fread(buf, sizeof(guchar), sizeof(buf), fp)) > 0) {
1194                 guchar *p;
1195                 gint i;
1196
1197                 for (p = buf, i = 0; i < len; ++p, ++i) {
1198                         if (*p & 0x80)
1199                                 ++octet_chars;
1200                 }
1201                 total_len += len;
1202         }
1203
1204         fclose(fp);
1205
1206         if (total_len > 0)
1207                 octet_percentage = (gfloat)octet_chars / (gfloat)total_len;
1208         else
1209                 octet_percentage = 0.0;
1210
1211         debug_print("procmime_get_encoding_for_text_file(): "
1212                     "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
1213                     100.0 * octet_percentage);
1214
1215         if (octet_percentage > 0.20) {
1216                 debug_print("using BASE64\n");
1217                 return ENC_BASE64;
1218         } else if (octet_chars > 0) {
1219                 debug_print("using quoted-printable\n");
1220                 return ENC_QUOTED_PRINTABLE;
1221         } else {
1222                 debug_print("using 7bit\n");
1223                 return ENC_7BIT;
1224         }
1225 }
1226
1227 struct EncodingTable
1228 {
1229         gchar *str;
1230         EncodingType enc_type;
1231 };
1232
1233 struct EncodingTable encoding_table[] = {
1234         {"7bit", ENC_7BIT},
1235         {"8bit", ENC_8BIT},
1236         {"binary", ENC_BINARY},
1237         {"quoted-printable", ENC_QUOTED_PRINTABLE},
1238         {"base64", ENC_BASE64},
1239         {"x-uuencode", ENC_UNKNOWN},
1240         {NULL, ENC_UNKNOWN},
1241 };
1242
1243 const gchar *procmime_get_encoding_str(EncodingType encoding)
1244 {
1245         struct EncodingTable *enc_table;
1246
1247         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1248                 if (enc_table->enc_type == encoding)
1249                         return enc_table->str;
1250         }
1251         return NULL;
1252 }
1253
1254 /* --- NEW MIME STUFF --- */
1255 struct TypeTable
1256 {
1257         gchar *str;
1258         MimeMediaType type;
1259 };
1260
1261 static struct TypeTable mime_type_table[] = {
1262         {"text", MIMETYPE_TEXT},
1263         {"image", MIMETYPE_IMAGE},
1264         {"audio", MIMETYPE_AUDIO},
1265         {"video", MIMETYPE_VIDEO},
1266         {"application", MIMETYPE_APPLICATION},
1267         {"message", MIMETYPE_MESSAGE},
1268         {"multipart", MIMETYPE_MULTIPART},
1269         {NULL, 0},
1270 };
1271
1272 const gchar *procmime_get_media_type_str(MimeMediaType type)
1273 {
1274         struct TypeTable *type_table;
1275
1276         for (type_table = mime_type_table; type_table->str != NULL; type_table++) {
1277                 if (type_table->type == type)
1278                         return type_table->str;
1279         }
1280         return NULL;
1281 }
1282
1283 MimeMediaType procmime_get_media_type(const gchar *str)
1284 {
1285         struct TypeTable *typetablearray;
1286
1287         for (typetablearray = mime_type_table; typetablearray->str != NULL; typetablearray++)
1288                 if (g_ascii_strncasecmp(str, typetablearray->str, strlen(typetablearray->str)) == 0)
1289                         return typetablearray->type;
1290
1291         return MIMETYPE_UNKNOWN;
1292 }
1293
1294 /*!
1295  *\brief        Safe wrapper for content type string.
1296  *
1297  *\return       const gchar * Pointer to content type string.
1298  */
1299 gchar *procmime_get_content_type_str(MimeMediaType type,
1300                                            const char *subtype)
1301 {
1302         const gchar *type_str = NULL;
1303
1304         if (subtype == NULL || !(type_str = procmime_get_media_type_str(type)))
1305                 return g_strdup("unknown");
1306         return g_strdup_printf("%s/%s", type_str, subtype);
1307 }
1308
1309 int procmime_parse_mimepart(MimeInfo *parent,
1310                              gchar *content_type,
1311                              gchar *content_encoding,
1312                              gchar *content_description,
1313                              gchar *content_id,
1314                              gchar *content_disposition,
1315                              const gchar *filename,
1316                              guint offset,
1317                              guint length);
1318
1319 void procmime_parse_message_rfc822(MimeInfo *mimeinfo)
1320 {
1321         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1322                                 {"Content-Transfer-Encoding:",
1323                                                    NULL, FALSE},
1324                                 {"Content-Description:",
1325                                                    NULL, TRUE},
1326                                 {"Content-ID:",
1327                                                    NULL, TRUE},
1328                                 {"Content-Disposition:",
1329                                                    NULL, TRUE},
1330                                 {"MIME-Version:",
1331                                                    NULL, TRUE},
1332                                 {NULL,             NULL, FALSE}};
1333         guint content_start, i;
1334         FILE *fp;
1335         gchar *tmp;
1336
1337         procmime_decode_content(mimeinfo);
1338
1339         fp = g_fopen(mimeinfo->data.filename, "rb");
1340         if (fp == NULL) {
1341                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1342                 return;
1343         }
1344         fseek(fp, mimeinfo->offset, SEEK_SET);
1345         procheader_get_header_fields(fp, hentry);
1346         if (hentry[0].body != NULL) {
1347                 tmp = conv_unmime_header(hentry[0].body, NULL);
1348                 g_free(hentry[0].body);
1349                 hentry[0].body = tmp;
1350         }
1351         if (hentry[2].body != NULL) {
1352                 tmp = conv_unmime_header(hentry[2].body, NULL);
1353                 g_free(hentry[2].body);
1354                 hentry[2].body = tmp;
1355         }
1356         if (hentry[4].body != NULL) {
1357                 tmp = conv_unmime_header(hentry[4].body, NULL);
1358                 g_free(hentry[4].body);
1359                 hentry[4].body = tmp;
1360         }
1361         content_start = ftell(fp);
1362         fclose(fp);
1363
1364         procmime_parse_mimepart(mimeinfo,
1365                                 hentry[0].body, hentry[1].body,
1366                                 hentry[2].body, hentry[3].body,
1367                                 hentry[4].body,
1368                                 mimeinfo->data.filename, content_start,
1369                                 mimeinfo->length - (content_start - mimeinfo->offset));
1370
1371         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1372                 g_free(hentry[i].body);
1373                 hentry[i].body = NULL;
1374         }
1375 }
1376
1377 void procmime_parse_multipart(MimeInfo *mimeinfo)
1378 {
1379         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1380                                 {"Content-Transfer-Encoding:",
1381                                                    NULL, FALSE},
1382                                 {"Content-Description:",
1383                                                    NULL, TRUE},
1384                                 {"Content-ID:",
1385                                                    NULL, TRUE},
1386                                 {"Content-Disposition:",
1387                                                    NULL, TRUE},
1388                                 {NULL,             NULL, FALSE}};
1389         gchar *p, *tmp;
1390         gchar *boundary;
1391         gint boundary_len = 0, lastoffset = -1, i;
1392         gchar buf[BUFFSIZE];
1393         FILE *fp;
1394         int result = 0;
1395
1396         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
1397         if (!boundary)
1398                 return;
1399         boundary_len = strlen(boundary);
1400
1401         procmime_decode_content(mimeinfo);
1402
1403         fp = g_fopen(mimeinfo->data.filename, "rb");
1404         if (fp == NULL) {
1405                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1406                 return;
1407         }
1408         fseek(fp, mimeinfo->offset, SEEK_SET);
1409         while ((p = fgets(buf, sizeof(buf), fp)) != NULL && result == 0) {
1410                 if (ftell(fp) > (mimeinfo->offset + mimeinfo->length))
1411                         break;
1412
1413                 if (IS_BOUNDARY(buf, boundary, boundary_len)) {
1414                         if (lastoffset != -1) {
1415                                 result = procmime_parse_mimepart(mimeinfo,
1416                                                         hentry[0].body, hentry[1].body,
1417                                                         hentry[2].body, hentry[3].body,
1418                                                         hentry[4].body,
1419                                                         mimeinfo->data.filename, lastoffset,
1420                                                         (ftell(fp) - strlen(buf)) - lastoffset - 1);
1421                         }
1422
1423                         if (buf[2 + boundary_len]     == '-' &&
1424                             buf[2 + boundary_len + 1] == '-')
1425                                 break;
1426
1427                         for (i = 0; i < (sizeof hentry / sizeof hentry[0]) ; i++) {
1428                                 g_free(hentry[i].body);
1429                                 hentry[i].body = NULL;
1430                         }
1431                         procheader_get_header_fields(fp, hentry);
1432                         if (hentry[0].body != NULL) {
1433                                 tmp = conv_unmime_header(hentry[0].body, NULL);
1434                                 g_free(hentry[0].body);
1435                                 hentry[0].body = tmp;
1436                         }
1437                         if (hentry[2].body != NULL) {
1438                                 tmp = conv_unmime_header(hentry[2].body, NULL);
1439                                 g_free(hentry[2].body);
1440                                 hentry[2].body = tmp;
1441                         }
1442                         if (hentry[4].body != NULL) {
1443                                 tmp = conv_unmime_header(hentry[4].body, NULL);
1444                                 g_free(hentry[4].body);
1445                                 hentry[4].body = tmp;
1446                         }
1447                         lastoffset = ftell(fp);
1448                 }
1449         }
1450         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1451                 g_free(hentry[i].body);
1452                 hentry[i].body = NULL;
1453         }
1454         fclose(fp);
1455 }
1456
1457 static void parse_parameters(const gchar *parameters, GHashTable *table)
1458 {
1459         gchar *params, *param, *next;
1460         GSList *convlist = NULL, *concatlist = NULL, *cur;
1461
1462         params = g_strdup(parameters);
1463         param = params;
1464         next = params;
1465         for (; next != NULL; param = next) {
1466                 gchar *attribute, *value, *tmp;
1467                 gint len;
1468                 gboolean convert = FALSE;
1469
1470                 next = strchr_with_skip_quote(param, '"', ';');
1471                 if (next != NULL) {
1472                         next[0] = '\0';
1473                         next++;
1474                 }
1475
1476                 g_strstrip(param);
1477
1478                 attribute = param;
1479                 value = strchr(attribute, '=');
1480                 if (value == NULL)
1481                         continue;
1482
1483                 value[0] = '\0';
1484                 value++;
1485                 while (value[0] == ' ')
1486                         value++;
1487
1488                 g_strdown(attribute);
1489
1490                 len = strlen(attribute);
1491                 if (attribute[len - 1] == '*') {
1492                         gchar *srcpos, *dstpos, *endpos;
1493
1494                         convert = TRUE;
1495                         attribute[len - 1] = '\0';
1496
1497                         srcpos = value;
1498                         dstpos = value;
1499                         endpos = value + strlen(value);
1500                         while (srcpos < endpos) {
1501                                 if (*srcpos != '%')
1502                                         *dstpos = *srcpos;
1503                                 else {
1504                                         guchar dstvalue;
1505
1506                                         if (!get_hex_value(&dstvalue, srcpos[1], srcpos[2]))
1507                                                 *dstpos = '?';
1508                                         else
1509                                                 *dstpos = dstvalue;
1510                                         srcpos += 2;
1511                                 }
1512                                 srcpos++;
1513                                 dstpos++;
1514                         }
1515                         *dstpos = '\0';
1516                 } else {
1517                         if (value[0] == '"')
1518                                 extract_quote(value, '"');
1519                         else if ((tmp = strchr(value, ' ')) != NULL)
1520                                 *tmp = '\0';
1521                 }
1522
1523                 if (attribute) {
1524                         while (attribute[0] == ' ')
1525                                 attribute++;
1526                         while (attribute[strlen(attribute)-1] == ' ')
1527                                 attribute[strlen(attribute)-1] = '\0';
1528                 }
1529                 if (value) {
1530                         while (value[0] == ' ')
1531                                 value++;
1532                         while (value[strlen(value)-1] == ' ')
1533                                 value[strlen(value)-1] = '\0';
1534                 }
1535                 if (strrchr(attribute, '*') != NULL) {
1536                         gchar *tmpattr;
1537
1538                         tmpattr = g_strdup(attribute);
1539                         tmp = strrchr(tmpattr, '*');
1540                         tmp[0] = '\0';
1541
1542                         if ((tmp[1] == '0') && (tmp[2] == '\0') &&
1543                             (g_slist_find_custom(concatlist, attribute, g_str_equal) == NULL))
1544                                 concatlist = g_slist_prepend(concatlist, g_strdup(tmpattr));
1545
1546                         if (convert && (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL))
1547                                 convlist = g_slist_prepend(convlist, g_strdup(tmpattr));
1548
1549                         g_free(tmpattr);
1550                 } else if (convert) {
1551                         if (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL)
1552                                 convlist = g_slist_prepend(convlist, g_strdup(attribute));
1553                 }
1554
1555                 if (g_hash_table_lookup(table, attribute) == NULL)
1556                         g_hash_table_insert(table, g_strdup(attribute), g_strdup(value));
1557         }
1558
1559         for (cur = concatlist; cur != NULL; cur = g_slist_next(cur)) {
1560                 gchar *attribute, *attrwnum, *partvalue;
1561                 gint n = 0;
1562                 GString *value;
1563
1564                 attribute = (gchar *) cur->data;
1565                 value = g_string_sized_new(64);
1566
1567                 attrwnum = g_strdup_printf("%s*%d", attribute, n);
1568                 while ((partvalue = g_hash_table_lookup(table, attrwnum)) != NULL) {
1569                         g_string_append(value, partvalue);
1570
1571                         g_free(attrwnum);
1572                         n++;
1573                         attrwnum = g_strdup_printf("%s*%d", attribute, n);
1574                 }
1575                 g_free(attrwnum);
1576
1577                 g_hash_table_insert(table, g_strdup(attribute), g_strdup(value->str));
1578                 g_string_free(value, TRUE);
1579         }
1580         slist_free_strings(concatlist);
1581         g_slist_free(concatlist);
1582
1583         for (cur = convlist; cur != NULL; cur = g_slist_next(cur)) {
1584                 gchar *attribute, *key, *value;
1585                 gchar *charset, *lang, *oldvalue, *newvalue;
1586
1587                 attribute = (gchar *) cur->data;
1588                 if (!g_hash_table_lookup_extended(
1589                         table, attribute, (gpointer *)(gchar *) &key, (gpointer *)(gchar *) &value))
1590                         continue;
1591
1592                 charset = value;
1593                 lang = strchr(charset, '\'');
1594                 if (lang == NULL)
1595                         continue;
1596                 lang[0] = '\0';
1597                 lang++;
1598                 oldvalue = strchr(lang, '\'');
1599                 if (oldvalue == NULL)
1600                         continue;
1601                 oldvalue[0] = '\0';
1602                 oldvalue++;
1603
1604                 newvalue = conv_codeset_strdup(oldvalue, charset, CS_UTF_8);
1605
1606                 g_hash_table_remove(table, attribute);
1607                 g_free(key);
1608                 g_free(value);
1609
1610                 g_hash_table_insert(table, g_strdup(attribute), newvalue);
1611         }
1612         slist_free_strings(convlist);
1613         g_slist_free(convlist);
1614
1615         g_free(params);
1616 }
1617
1618 static void procmime_parse_content_type(const gchar *content_type, MimeInfo *mimeinfo)
1619 {
1620         g_return_if_fail(content_type != NULL);
1621         g_return_if_fail(mimeinfo != NULL);
1622
1623         /* RFC 2045, page 13 says that the mime subtype is MANDATORY;
1624          * if it's not available we use the default Content-Type */
1625         if ((content_type[0] == '\0') || (strchr(content_type, '/') == NULL)) {
1626                 mimeinfo->type = MIMETYPE_TEXT;
1627                 mimeinfo->subtype = g_strdup("plain");
1628                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1629                                        "charset") == NULL) {
1630                         g_hash_table_insert(mimeinfo->typeparameters,
1631                                     g_strdup("charset"),
1632                                     g_strdup(
1633                                         conv_get_locale_charset_str_no_utf8()));
1634                 }
1635         } else {
1636                 gchar *type, *subtype, *params;
1637
1638                 type = g_strdup(content_type);
1639                 subtype = strchr(type, '/') + 1;
1640                 *(subtype - 1) = '\0';
1641                 if ((params = strchr(subtype, ';')) != NULL) {
1642                         params[0] = '\0';
1643                         params++;
1644                 }
1645
1646                 mimeinfo->type = procmime_get_media_type(type);
1647                 mimeinfo->subtype = g_strdup(subtype);
1648
1649                 /* Get mimeinfo->typeparameters */
1650                 if (params != NULL)
1651                         parse_parameters(params, mimeinfo->typeparameters);
1652
1653                 g_free(type);
1654         }
1655 }
1656
1657 static void procmime_parse_content_disposition(const gchar *content_disposition, MimeInfo *mimeinfo)
1658 {
1659         gchar *tmp, *params;
1660
1661         g_return_if_fail(content_disposition != NULL);
1662         g_return_if_fail(mimeinfo != NULL);
1663
1664         tmp = g_strdup(content_disposition);
1665         if ((params = strchr(tmp, ';')) != NULL) {
1666                 params[0] = '\0';
1667                 params++;
1668         }
1669         g_strstrip(tmp);
1670
1671         if (!g_ascii_strcasecmp(tmp, "inline"))
1672                 mimeinfo->disposition = DISPOSITIONTYPE_INLINE;
1673         else if (!g_ascii_strcasecmp(tmp, "attachment"))
1674                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1675         else
1676                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1677
1678         if (params != NULL)
1679                 parse_parameters(params, mimeinfo->dispositionparameters);
1680
1681         g_free(tmp);
1682 }
1683
1684
1685 static void procmime_parse_content_encoding(const gchar *content_encoding, MimeInfo *mimeinfo)
1686 {
1687         struct EncodingTable *enc_table;
1688
1689         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1690                 if (g_ascii_strcasecmp(enc_table->str, content_encoding) == 0) {
1691                         mimeinfo->encoding_type = enc_table->enc_type;
1692                         return;
1693                 }
1694         }
1695         mimeinfo->encoding_type = ENC_UNKNOWN;
1696         return;
1697 }
1698
1699 int procmime_parse_mimepart(MimeInfo *parent,
1700                              gchar *content_type,
1701                              gchar *content_encoding,
1702                              gchar *content_description,
1703                              gchar *content_id,
1704                              gchar *content_disposition,
1705                              const gchar *filename,
1706                              guint offset,
1707                              guint length)
1708 {
1709         MimeInfo *mimeinfo;
1710
1711         /* Create MimeInfo */
1712         mimeinfo = procmime_mimeinfo_new();
1713         mimeinfo->content = MIMECONTENT_FILE;
1714         if (parent != NULL) {
1715                 if (g_node_depth(parent->node) > 32) {
1716                         /* 32 is an arbitrary value
1717                          * this avoids DOSsing ourselves
1718                          * with enormous messages
1719                          */
1720                         procmime_mimeinfo_free_all(mimeinfo);
1721                         return -1;
1722                 }
1723                 g_node_append(parent->node, mimeinfo->node);
1724         }
1725         mimeinfo->data.filename = g_strdup(filename);
1726         mimeinfo->offset = offset;
1727         mimeinfo->length = length;
1728
1729         if (content_type != NULL) {
1730                 procmime_parse_content_type(content_type, mimeinfo);
1731         } else {
1732                 mimeinfo->type = MIMETYPE_TEXT;
1733                 mimeinfo->subtype = g_strdup("plain");
1734                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1735                                        "charset") == NULL) {
1736                         g_hash_table_insert(mimeinfo->typeparameters,
1737                                     g_strdup("charset"),
1738                                     g_strdup(
1739                                         conv_get_locale_charset_str_no_utf8()));
1740                 }
1741         }
1742
1743         if (content_encoding != NULL) {
1744                 procmime_parse_content_encoding(content_encoding, mimeinfo);
1745         } else {
1746                 mimeinfo->encoding_type = ENC_UNKNOWN;
1747         }
1748
1749         if (content_description != NULL)
1750                 mimeinfo->description = g_strdup(content_description);
1751         else
1752                 mimeinfo->description = NULL;
1753
1754         if (content_id != NULL)
1755                 mimeinfo->id = g_strdup(content_id);
1756         else
1757                 mimeinfo->id = NULL;
1758
1759         if (content_disposition != NULL)
1760                 procmime_parse_content_disposition(content_disposition, mimeinfo);
1761         else
1762                 mimeinfo->disposition = DISPOSITIONTYPE_UNKNOWN;
1763
1764         /* Call parser for mime type */
1765         switch (mimeinfo->type) {
1766                 case MIMETYPE_MESSAGE:
1767                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
1768                                 procmime_parse_message_rfc822(mimeinfo);
1769                         }
1770                         break;
1771
1772                 case MIMETYPE_MULTIPART:
1773                         procmime_parse_multipart(mimeinfo);
1774                         break;
1775
1776                 default:
1777                         break;
1778         }
1779
1780         return 0;
1781 }
1782
1783 static gchar *typenames[] = {
1784     "text",
1785     "image",
1786     "audio",
1787     "video",
1788     "application",
1789     "message",
1790     "multipart",
1791     "unknown",
1792 };
1793
1794 static gboolean output_func(GNode *node, gpointer data)
1795 {
1796         guint i, depth;
1797         MimeInfo *mimeinfo = (MimeInfo *) node->data;
1798
1799         depth = g_node_depth(node);
1800         for (i = 0; i < depth; i++)
1801                 printf("    ");
1802         printf("%s/%s (offset:%d length:%d encoding: %d)\n", typenames[mimeinfo->type], mimeinfo->subtype, mimeinfo->offset, mimeinfo->length, mimeinfo->encoding_type);
1803
1804         return FALSE;
1805 }
1806
1807 static void output_mime_structure(MimeInfo *mimeinfo, int indent)
1808 {
1809         g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, output_func, NULL);
1810 }
1811
1812 MimeInfo *procmime_scan_file_with_offset(const gchar *filename, int offset)
1813 {
1814         MimeInfo *mimeinfo;
1815         struct stat buf;
1816
1817         stat(filename, &buf);
1818
1819         mimeinfo = procmime_mimeinfo_new();
1820         mimeinfo->content = MIMECONTENT_FILE;
1821         mimeinfo->encoding_type = ENC_UNKNOWN;
1822         mimeinfo->type = MIMETYPE_MESSAGE;
1823         mimeinfo->subtype = g_strdup("rfc822");
1824         mimeinfo->data.filename = g_strdup(filename);
1825         mimeinfo->offset = offset;
1826         mimeinfo->length = buf.st_size - offset;
1827
1828         procmime_parse_message_rfc822(mimeinfo);
1829         if (debug_get_mode())
1830                 output_mime_structure(mimeinfo, 0);
1831
1832         return mimeinfo;
1833 }
1834
1835 MimeInfo *procmime_scan_file(const gchar *filename)
1836 {
1837         MimeInfo *mimeinfo;
1838
1839         g_return_val_if_fail(filename != NULL, NULL);
1840
1841         mimeinfo = procmime_scan_file_with_offset(filename, 0);
1842
1843         return mimeinfo;
1844 }
1845
1846 MimeInfo *procmime_scan_queue_file(const gchar *filename)
1847 {
1848         FILE *fp;
1849         MimeInfo *mimeinfo;
1850         gchar buf[BUFFSIZE];
1851         gint offset = 0;
1852
1853         g_return_val_if_fail(filename != NULL, NULL);
1854
1855         /* Open file */
1856         if ((fp = g_fopen(filename, "rb")) == NULL)
1857                 return NULL;
1858         /* Skip queue header */
1859         while (fgets(buf, sizeof(buf), fp) != NULL)
1860                 if (buf[0] == '\r' || buf[0] == '\n') break;
1861         offset = ftell(fp);
1862         fclose(fp);
1863
1864         mimeinfo = procmime_scan_file_with_offset(filename, offset);
1865
1866         return mimeinfo;
1867 }
1868
1869 typedef enum {
1870     ENC_AS_TOKEN,
1871     ENC_AS_QUOTED_STRING,
1872     ENC_AS_EXTENDED,
1873     ENC_TO_ASCII,
1874 } EncodeAs;
1875
1876 typedef struct _ParametersData {
1877         FILE *fp;
1878         guint len;
1879         guint ascii_only;
1880 } ParametersData;
1881
1882 static void write_parameters(gpointer key, gpointer value, gpointer user_data)
1883 {
1884         gchar *param = key;
1885         gchar *val = value, *valpos, *tmp;
1886         ParametersData *pdata = (ParametersData *)user_data;
1887         GString *buf = g_string_new("");
1888
1889         EncodeAs encas = ENC_AS_TOKEN;
1890
1891         for (valpos = val; *valpos != 0; valpos++) {
1892                 if (!IS_ASCII(*valpos) || *valpos == '"') {
1893                         encas = ENC_AS_EXTENDED;
1894                         break;
1895                 }
1896
1897                 /* CTLs */
1898                 if (((*valpos >= 0) && (*valpos < 037)) || (*valpos == 0177)) {
1899                         encas = ENC_AS_QUOTED_STRING;
1900                         continue;
1901                 }
1902
1903                 /* tspecials + SPACE */
1904                 switch (*valpos) {
1905                 case ' ':
1906                 case '(':
1907                 case ')':
1908                 case '<':
1909                 case '>':
1910                 case '@':
1911                 case ',':
1912                 case ';':
1913                 case ':':
1914                 case '\\':
1915                 case '\'':
1916                 case '/':
1917                 case '[':
1918                 case ']':
1919                 case '?':
1920                 case '=':
1921                         encas = ENC_AS_QUOTED_STRING;
1922                         continue;
1923                 }
1924         }
1925
1926         if (encas == ENC_AS_EXTENDED && pdata->ascii_only == TRUE)
1927                 encas = ENC_TO_ASCII;
1928
1929         switch (encas) {
1930         case ENC_AS_TOKEN:
1931                 g_string_append_printf(buf, "%s=%s", param, val);
1932                 break;
1933
1934         case ENC_TO_ASCII:
1935                 tmp = g_strdup(val);
1936                 g_strcanon(tmp,
1937                         " ()<>@,';:\\/[]?=.0123456789"
1938                         "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1939                         "abcdefghijklmnopqrstuvwxyz",
1940                         '_');
1941                 g_string_append_printf(buf, "%s=\"%s\"", param, tmp);
1942                 g_free(tmp);
1943                 break;
1944
1945         case ENC_AS_QUOTED_STRING:
1946                 g_string_append_printf(buf, "%s=\"%s\"", param, val);
1947                 break;
1948
1949         case ENC_AS_EXTENDED:
1950                 if (!g_utf8_validate(val, -1, NULL))
1951                         g_string_append_printf(buf, "%s*=%s''", param,
1952                                 conv_get_locale_charset_str());
1953                 else
1954                         g_string_append_printf(buf, "%s*=%s''", param,
1955                                 CS_INTERNAL);
1956                 for (valpos = val; *valpos != '\0'; valpos++) {
1957                         if (IS_ASCII(*valpos) && isalnum(*valpos)) {
1958                                 g_string_append_printf(buf, "%c", *valpos);
1959                         } else {
1960                                 gchar hexstr[3] = "XX";
1961                                 get_hex_str(hexstr, *valpos);
1962                                 g_string_append_printf(buf, "%%%s", hexstr);
1963                         }
1964                 }
1965                 break;
1966         }
1967
1968         if (buf->str && strlen(buf->str)) {
1969                 if (pdata->len + strlen(buf->str) + 2 > 76) {
1970                         fprintf(pdata->fp, ";\n %s", buf->str);
1971                         pdata->len = strlen(buf->str) + 1;
1972                 } else {
1973                         fprintf(pdata->fp, "; %s", buf->str);
1974                         pdata->len += strlen(buf->str) + 2;
1975                 }
1976         }
1977         g_string_free(buf, TRUE);
1978 }
1979
1980 void procmime_write_mime_header(MimeInfo *mimeinfo, FILE *fp)
1981 {
1982         struct TypeTable *type_table;
1983         ParametersData *pdata = g_new0(ParametersData, 1);
1984         debug_print("procmime_write_mime_header\n");
1985
1986         pdata->fp = fp;
1987         pdata->ascii_only = FALSE;
1988
1989         for (type_table = mime_type_table; type_table->str != NULL; type_table++)
1990                 if (mimeinfo->type == type_table->type) {
1991                         gchar *buf = g_strdup_printf(
1992                                 "Content-Type: %s/%s", type_table->str, mimeinfo->subtype);
1993                         fprintf(fp, "%s", buf);
1994                         pdata->len = strlen(buf);
1995                         pdata->ascii_only = TRUE;
1996                         g_free(buf);
1997                         break;
1998                 }
1999         g_hash_table_foreach(mimeinfo->typeparameters, write_parameters, pdata);
2000         g_free(pdata);
2001
2002         fprintf(fp, "\n");
2003
2004         if (mimeinfo->encoding_type != ENC_UNKNOWN)
2005                 fprintf(fp, "Content-Transfer-Encoding: %s\n", procmime_get_encoding_str(mimeinfo->encoding_type));
2006
2007         if (mimeinfo->description != NULL)
2008                 fprintf(fp, "Content-Description: %s\n", mimeinfo->description);
2009
2010         if (mimeinfo->id != NULL)
2011                 fprintf(fp, "Content-ID: %s\n", mimeinfo->id);
2012
2013         if (mimeinfo->disposition != DISPOSITIONTYPE_UNKNOWN) {
2014                 ParametersData *pdata = g_new0(ParametersData, 1);
2015                 gchar *buf = NULL;
2016                 if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE)
2017                         buf = g_strdup("Content-Disposition: inline");
2018                 else if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT)
2019                         buf = g_strdup("Content-Disposition: attachment");
2020                 else
2021                         buf = g_strdup("Content-Disposition: unknown");
2022
2023                 fprintf(fp, "%s", buf);
2024                 pdata->len = strlen(buf);
2025                 g_free(buf);
2026
2027                 pdata->fp = fp;
2028                 pdata->ascii_only = FALSE;
2029
2030                 g_hash_table_foreach(mimeinfo->dispositionparameters, write_parameters, pdata);
2031                 g_free(pdata);
2032                 fprintf(fp, "\n");
2033         }
2034
2035         fprintf(fp, "\n");
2036 }
2037
2038 gint procmime_write_message_rfc822(MimeInfo *mimeinfo, FILE *fp)
2039 {
2040         FILE *infp;
2041         GNode *childnode;
2042         MimeInfo *child;
2043         gchar buf[BUFFSIZE];
2044         gboolean skip = FALSE;;
2045
2046         debug_print("procmime_write_message_rfc822\n");
2047
2048         /* write header */
2049         switch (mimeinfo->content) {
2050         case MIMECONTENT_FILE:
2051                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2052                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2053                         return -1;
2054                 }
2055                 fseek(infp, mimeinfo->offset, SEEK_SET);
2056                 while (fgets(buf, sizeof(buf), infp) == buf) {
2057                         if (buf[0] == '\n' && buf[1] == '\0')
2058                                 break;
2059                         if (skip && (buf[0] == ' ' || buf[0] == '\t'))
2060                                 continue;
2061                         if (g_ascii_strncasecmp(buf, "Mime-Version:", 13) == 0 ||
2062                             g_ascii_strncasecmp(buf, "Content-Type:", 13) == 0 ||
2063                             g_ascii_strncasecmp(buf, "Content-Transfer-Encoding:", 26) == 0 ||
2064                             g_ascii_strncasecmp(buf, "Content-Description:", 20) == 0 ||
2065                             g_ascii_strncasecmp(buf, "Content-ID:", 11) == 0 ||
2066                             g_ascii_strncasecmp(buf, "Content-Disposition:", 20) == 0) {
2067                                 skip = TRUE;
2068                                 continue;
2069                         }
2070                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2071                         skip = FALSE;
2072                 }
2073                 fclose(infp);
2074                 break;
2075
2076         case MIMECONTENT_MEM:
2077                 fwrite(mimeinfo->data.mem,
2078                                 sizeof(gchar),
2079                                 strlen(mimeinfo->data.mem),
2080                                 fp);
2081                 break;
2082
2083         default:
2084                 break;
2085         }
2086
2087         childnode = mimeinfo->node->children;
2088         if (childnode == NULL)
2089                 return -1;
2090
2091         child = (MimeInfo *) childnode->data;
2092         fprintf(fp, "Mime-Version: 1.0\n");
2093         procmime_write_mime_header(child, fp);
2094         return procmime_write_mimeinfo(child, fp);
2095 }
2096
2097 gint procmime_write_multipart(MimeInfo *mimeinfo, FILE *fp)
2098 {
2099         FILE *infp;
2100         GNode *childnode;
2101         gchar *boundary, *str, *str2;
2102         gchar buf[BUFFSIZE];
2103         gboolean firstboundary;
2104
2105         debug_print("procmime_write_multipart\n");
2106
2107         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
2108
2109         switch (mimeinfo->content) {
2110         case MIMECONTENT_FILE:
2111                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2112                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2113                         return -1;
2114                 }
2115                 fseek(infp, mimeinfo->offset, SEEK_SET);
2116                 while (fgets(buf, sizeof(buf), infp) == buf) {
2117                         if (IS_BOUNDARY(buf, boundary, strlen(boundary)))
2118                                 break;
2119                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2120                 }
2121                 fclose(infp);
2122                 break;
2123
2124         case MIMECONTENT_MEM:
2125                 str = g_strdup(mimeinfo->data.mem);
2126                 if (((str2 = strstr(str, boundary)) != NULL) && ((str2 - str) >= 2) &&
2127                     (*(str2 - 1) == '-') && (*(str2 - 2) == '-'))
2128                         *(str2 - 2) = '\0';
2129                 fwrite(str, sizeof(gchar), strlen(str), fp);
2130                 g_free(str);
2131                 break;
2132
2133         default:
2134                 break;
2135         }
2136
2137         childnode = mimeinfo->node->children;
2138         firstboundary = TRUE;
2139         while (childnode != NULL) {
2140                 MimeInfo *child = childnode->data;
2141
2142                 if (firstboundary)
2143                         firstboundary = FALSE;
2144                 else
2145                         fprintf(fp, "\n");
2146                 fprintf(fp, "--%s\n", boundary);
2147
2148                 procmime_write_mime_header(child, fp);
2149                 if (procmime_write_mimeinfo(child, fp) < 0)
2150                         return -1;
2151
2152                 childnode = g_node_next_sibling(childnode);
2153         }
2154         fprintf(fp, "\n--%s--\n", boundary);
2155
2156         return 0;
2157 }
2158
2159 gint procmime_write_mimeinfo(MimeInfo *mimeinfo, FILE *fp)
2160 {
2161         FILE *infp;
2162
2163         debug_print("procmime_write_mimeinfo\n");
2164
2165         if (G_NODE_IS_LEAF(mimeinfo->node)) {
2166                 switch (mimeinfo->content) {
2167                 case MIMECONTENT_FILE:
2168                         if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2169                                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2170                                 return -1;
2171                         }
2172                         copy_file_part_to_fp(infp, mimeinfo->offset, mimeinfo->length, fp);
2173                         fclose(infp);
2174                         return 0;
2175
2176                 case MIMECONTENT_MEM:
2177                         fwrite(mimeinfo->data.mem,
2178                                         sizeof(gchar),
2179                                         strlen(mimeinfo->data.mem),
2180                                         fp);
2181                         return 0;
2182
2183                 default:
2184                         return 0;
2185                 }
2186         } else {
2187                 /* Call writer for mime type */
2188                 switch (mimeinfo->type) {
2189                 case MIMETYPE_MESSAGE:
2190                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
2191                                 return procmime_write_message_rfc822(mimeinfo, fp);
2192                         }
2193                         break;
2194
2195                 case MIMETYPE_MULTIPART:
2196                         return procmime_write_multipart(mimeinfo, fp);
2197
2198                 default:
2199                         break;
2200                 }
2201
2202                 return -1;
2203         }
2204
2205         return 0;
2206 }
2207
2208 gchar *procmime_get_part_file_name(MimeInfo *mimeinfo)
2209 {
2210         gchar *base;
2211
2212         if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2213                 base = g_strdup("mimetmp.html");
2214         else {
2215                 const gchar *basetmp;
2216                 gchar *basename;
2217
2218                 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
2219                 if (basetmp == NULL)
2220                         basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
2221                 if (basetmp == NULL)
2222                         basetmp = "mimetmp";
2223                 basename = g_path_get_basename(basetmp);
2224                 if (*basename == '\0') {
2225                         g_free(basename);
2226                         basename = g_strdup("mimetmp");
2227                 }
2228                 base = conv_filename_from_utf8(basename);
2229                 g_free(basename);
2230                 subst_for_shellsafe_filename(base);
2231         }
2232
2233         return base;
2234 }
2235