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')
 984                         basetmp = g_strdup("mimetmp");
 985                 base = conv_filename_from_utf8(basetmp);
 986                 g_free((gchar*)basetmp);
 987                 subst_for_shellsafe_filename(base);
 988         }
 989
 990         filename = g_strconcat(get_mime_tmp_dir(), G_DIR_SEPARATOR_S,
 991                                f_prefix, base, NULL);
 992
 993         g_free(base);
 994
 995         return filename;
 996 }
 997
 998 static GList *mime_type_list = NULL;
 999
1000 gchar *procmime_get_mime_type(const gchar *filename)
1001 {
1002         static GHashTable *mime_type_table = NULL;
1003         MimeType *mime_type;
1004         const gchar *p;
1005         gchar *ext = NULL;
1006         gchar *base;
1007
1008         if (!mime_type_table) {
1009                 mime_type_table = procmime_get_mime_type_table();
1010                 if (!mime_type_table) return NULL;
1011         }
1012
1013         base = g_path_get_basename(filename);
1014         if ((p = strrchr(base, '.')) != NULL)
1015                 Xstrdup_a(ext, p + 1, p = NULL );
1016         g_free(base);
1017         if (!p) return NULL;
1018
1019         g_strdown(ext);
1020         mime_type = g_hash_table_lookup(mime_type_table, ext);
1021         if (mime_type) {
1022                 gchar *str;
1023
1024                 str = g_strconcat(mime_type->type, "/", mime_type->sub_type,
1025                                   NULL);
1026                 return str;
1027         }
1028
1029         return NULL;
1030 }
1031
1032 static guint procmime_str_hash(gconstpointer gptr)
1033 {
1034         guint hash_result = 0;
1035         const char *str;
1036
1037         for (str = gptr; str && *str; str++) {
1038                 if (isupper(*str)) hash_result += (*str + ' ');
1039                 else hash_result += *str;
1040         }
1041
1042         return hash_result;
1043 }
1044
1045 static gint procmime_str_equal(gconstpointer gptr1, gconstpointer gptr2)
1046 {
1047         const char *str1 = gptr1;
1048         const char *str2 = gptr2;
1049
1050         return !g_utf8_collate(str1, str2);
1051 }
1052
1053 static GHashTable *procmime_get_mime_type_table(void)
1054 {
1055         GHashTable *table = NULL;
1056         GList *cur;
1057         MimeType *mime_type;
1058         gchar **exts;
1059
1060         if (!mime_type_list) {
1061                 mime_type_list = procmime_get_mime_type_list();
1062                 if (!mime_type_list) return NULL;
1063         }
1064
1065         table = g_hash_table_new(procmime_str_hash, procmime_str_equal);
1066
1067         for (cur = mime_type_list; cur != NULL; cur = cur->next) {
1068                 gint i;
1069                 gchar *key;
1070
1071                 mime_type = (MimeType *)cur->data;
1072
1073                 if (!mime_type->extension) continue;
1074
1075                 exts = g_strsplit(mime_type->extension, " ", 16);
1076                 for (i = 0; exts[i] != NULL; i++) {
1077                         /* make the key case insensitive */
1078                         g_strdown(exts[i]);
1079                         /* use previously dup'd key on overwriting */
1080                         if (g_hash_table_lookup(table, exts[i]))
1081                                 key = exts[i];
1082                         else
1083                                 key = g_strdup(exts[i]);
1084                         g_hash_table_insert(table, key, mime_type);
1085                 }
1086                 g_strfreev(exts);
1087         }
1088
1089         return table;
1090 }
1091
1092 GList *procmime_get_mime_type_list(void)
1093 {
1094         GList *list = NULL;
1095         FILE *fp;
1096         gchar buf[BUFFSIZE];
1097         gchar *p;
1098         gchar *delim;
1099         MimeType *mime_type;
1100         gboolean fp_is_glob_file = TRUE;
1101
1102         if (mime_type_list)
1103                 return mime_type_list;
1104
1105         if ((fp = g_fopen("/usr/share/mime/globs", "rb")) == NULL) {
1106                 fp_is_glob_file = FALSE;
1107                 if ((fp = g_fopen("/etc/mime.types", "rb")) == NULL) {
1108                         if ((fp = g_fopen(SYSCONFDIR "/mime.types", "rb"))
1109                                 == NULL) {
1110                                 FILE_OP_ERROR(SYSCONFDIR "/mime.types",
1111                                         "fopen");
1112                                 return NULL;
1113                         }
1114                 }
1115         }
1116
1117         while (fgets(buf, sizeof(buf), fp) != NULL) {
1118                 p = strchr(buf, '#');
1119                 if (p) *p = '\0';
1120                 g_strstrip(buf);
1121
1122                 p = buf;
1123
1124                 if (fp_is_glob_file) {
1125                         while (*p && !g_ascii_isspace(*p) && (*p!=':')) p++;
1126                 } else {
1127                         while (*p && !g_ascii_isspace(*p)) p++;
1128                 }
1129
1130                 if (*p) {
1131                         *p = '\0';
1132                         p++;
1133                 }
1134                 delim = strchr(buf, '/');
1135                 if (delim == NULL) continue;
1136                 *delim = '\0';
1137
1138                 mime_type = g_new(MimeType, 1);
1139                 mime_type->type = g_strdup(buf);
1140                 mime_type->sub_type = g_strdup(delim + 1);
1141
1142                 if (fp_is_glob_file) {
1143                         while (*p && (g_ascii_isspace(*p)||(*p=='*')||(*p=='.'))) p++;
1144                 } else {
1145                         while (*p && g_ascii_isspace(*p)) p++;
1146                 }
1147
1148                 if (*p)
1149                         mime_type->extension = g_strdup(p);
1150                 else
1151                         mime_type->extension = NULL;
1152
1153                 list = g_list_append(list, mime_type);
1154         }
1155
1156         fclose(fp);
1157
1158         if (!list)
1159                 g_warning("Can't read mime.types\n");
1160
1161         return list;
1162 }
1163
1164 EncodingType procmime_get_encoding_for_charset(const gchar *charset)
1165 {
1166         if (!charset)
1167                 return ENC_8BIT;
1168         else if (!g_ascii_strncasecmp(charset, "ISO-2022-", 9) ||
1169                  !g_ascii_strcasecmp(charset, "US-ASCII"))
1170                 return ENC_7BIT;
1171         else if (!g_ascii_strcasecmp(charset, "ISO-8859-5") ||
1172                  !g_ascii_strncasecmp(charset, "KOI8-", 5) ||
1173                  !g_ascii_strcasecmp(charset, "Windows-1251"))
1174                 return ENC_8BIT;
1175         else if (!g_ascii_strncasecmp(charset, "ISO-8859-", 9))
1176                 return ENC_QUOTED_PRINTABLE;
1177         else
1178                 return ENC_8BIT;
1179 }
1180
1181 EncodingType procmime_get_encoding_for_text_file(const gchar *file)
1182 {
1183         FILE *fp;
1184         guchar buf[BUFFSIZE];
1185         size_t len;
1186         size_t octet_chars = 0;
1187         size_t total_len = 0;
1188         gfloat octet_percentage;
1189
1190         if ((fp = g_fopen(file, "rb")) == NULL) {
1191                 FILE_OP_ERROR(file, "fopen");
1192                 return ENC_UNKNOWN;
1193         }
1194
1195         while ((len = fread(buf, sizeof(guchar), sizeof(buf), fp)) > 0) {
1196                 guchar *p;
1197                 gint i;
1198
1199                 for (p = buf, i = 0; i < len; ++p, ++i) {
1200                         if (*p & 0x80)
1201                                 ++octet_chars;
1202                 }
1203                 total_len += len;
1204         }
1205
1206         fclose(fp);
1207
1208         if (total_len > 0)
1209                 octet_percentage = (gfloat)octet_chars / (gfloat)total_len;
1210         else
1211                 octet_percentage = 0.0;
1212
1213         debug_print("procmime_get_encoding_for_text_file(): "
1214                     "8bit chars: %d / %d (%f%%)\n", octet_chars, total_len,
1215                     100.0 * octet_percentage);
1216
1217         if (octet_percentage > 0.20) {
1218                 debug_print("using BASE64\n");
1219                 return ENC_BASE64;
1220         } else if (octet_chars > 0) {
1221                 debug_print("using quoted-printable\n");
1222                 return ENC_QUOTED_PRINTABLE;
1223         } else {
1224                 debug_print("using 7bit\n");
1225                 return ENC_7BIT;
1226         }
1227 }
1228
1229 struct EncodingTable
1230 {
1231         gchar *str;
1232         EncodingType enc_type;
1233 };
1234
1235 struct EncodingTable encoding_table[] = {
1236         {"7bit", ENC_7BIT},
1237         {"8bit", ENC_8BIT},
1238         {"binary", ENC_BINARY},
1239         {"quoted-printable", ENC_QUOTED_PRINTABLE},
1240         {"base64", ENC_BASE64},
1241         {"x-uuencode", ENC_UNKNOWN},
1242         {NULL, ENC_UNKNOWN},
1243 };
1244
1245 const gchar *procmime_get_encoding_str(EncodingType encoding)
1246 {
1247         struct EncodingTable *enc_table;
1248
1249         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1250                 if (enc_table->enc_type == encoding)
1251                         return enc_table->str;
1252         }
1253         return NULL;
1254 }
1255
1256 /* --- NEW MIME STUFF --- */
1257 struct TypeTable
1258 {
1259         gchar *str;
1260         MimeMediaType type;
1261 };
1262
1263 static struct TypeTable mime_type_table[] = {
1264         {"text", MIMETYPE_TEXT},
1265         {"image", MIMETYPE_IMAGE},
1266         {"audio", MIMETYPE_AUDIO},
1267         {"video", MIMETYPE_VIDEO},
1268         {"application", MIMETYPE_APPLICATION},
1269         {"message", MIMETYPE_MESSAGE},
1270         {"multipart", MIMETYPE_MULTIPART},
1271         {NULL, 0},
1272 };
1273
1274 const gchar *procmime_get_media_type_str(MimeMediaType type)
1275 {
1276         struct TypeTable *type_table;
1277
1278         for (type_table = mime_type_table; type_table->str != NULL; type_table++) {
1279                 if (type_table->type == type)
1280                         return type_table->str;
1281         }
1282         return NULL;
1283 }
1284
1285 MimeMediaType procmime_get_media_type(const gchar *str)
1286 {
1287         struct TypeTable *typetablearray;
1288
1289         for (typetablearray = mime_type_table; typetablearray->str != NULL; typetablearray++)
1290                 if (g_ascii_strncasecmp(str, typetablearray->str, strlen(typetablearray->str)) == 0)
1291                         return typetablearray->type;
1292
1293         return MIMETYPE_UNKNOWN;
1294 }
1295
1296 /*!
1297  *\brief        Safe wrapper for content type string.
1298  *
1299  *\return       const gchar * Pointer to content type string.
1300  */
1301 gchar *procmime_get_content_type_str(MimeMediaType type,
1302                                            const char *subtype)
1303 {
1304         const gchar *type_str = NULL;
1305
1306         if (subtype == NULL || !(type_str = procmime_get_media_type_str(type)))
1307                 return g_strdup("unknown");
1308         return g_strdup_printf("%s/%s", type_str, subtype);
1309 }
1310
1311 int procmime_parse_mimepart(MimeInfo *parent,
1312                              gchar *content_type,
1313                              gchar *content_encoding,
1314                              gchar *content_description,
1315                              gchar *content_id,
1316                              gchar *content_disposition,
1317                              const gchar *filename,
1318                              guint offset,
1319                              guint length);
1320
1321 void procmime_parse_message_rfc822(MimeInfo *mimeinfo)
1322 {
1323         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1324                                 {"Content-Transfer-Encoding:",
1325                                                    NULL, FALSE},
1326                                 {"Content-Description:",
1327                                                    NULL, TRUE},
1328                                 {"Content-ID:",
1329                                                    NULL, TRUE},
1330                                 {"Content-Disposition:",
1331                                                    NULL, TRUE},
1332                                 {"MIME-Version:",
1333                                                    NULL, TRUE},
1334                                 {NULL,             NULL, FALSE}};
1335         guint content_start, i;
1336         FILE *fp;
1337         gchar *tmp;
1338
1339         procmime_decode_content(mimeinfo);
1340
1341         fp = g_fopen(mimeinfo->data.filename, "rb");
1342         if (fp == NULL) {
1343                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1344                 return;
1345         }
1346         fseek(fp, mimeinfo->offset, SEEK_SET);
1347         procheader_get_header_fields(fp, hentry);
1348         if (hentry[0].body != NULL) {
1349                 tmp = conv_unmime_header(hentry[0].body, NULL);
1350                 g_free(hentry[0].body);
1351                 hentry[0].body = tmp;
1352         }
1353         if (hentry[2].body != NULL) {
1354                 tmp = conv_unmime_header(hentry[2].body, NULL);
1355                 g_free(hentry[2].body);
1356                 hentry[2].body = tmp;
1357         }
1358         if (hentry[4].body != NULL) {
1359                 tmp = conv_unmime_header(hentry[4].body, NULL);
1360                 g_free(hentry[4].body);
1361                 hentry[4].body = tmp;
1362         }
1363         content_start = ftell(fp);
1364         fclose(fp);
1365
1366         procmime_parse_mimepart(mimeinfo,
1367                                 hentry[0].body, hentry[1].body,
1368                                 hentry[2].body, hentry[3].body,
1369                                 hentry[4].body,
1370                                 mimeinfo->data.filename, content_start,
1371                                 mimeinfo->length - (content_start - mimeinfo->offset));
1372
1373         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1374                 g_free(hentry[i].body);
1375                 hentry[i].body = NULL;
1376         }
1377 }
1378
1379 void procmime_parse_multipart(MimeInfo *mimeinfo)
1380 {
1381         HeaderEntry hentry[] = {{"Content-Type:",  NULL, TRUE},
1382                                 {"Content-Transfer-Encoding:",
1383                                                    NULL, FALSE},
1384                                 {"Content-Description:",
1385                                                    NULL, TRUE},
1386                                 {"Content-ID:",
1387                                                    NULL, TRUE},
1388                                 {"Content-Disposition:",
1389                                                    NULL, TRUE},
1390                                 {NULL,             NULL, FALSE}};
1391         gchar *p, *tmp;
1392         gchar *boundary;
1393         gint boundary_len = 0, lastoffset = -1, i;
1394         gchar buf[BUFFSIZE];
1395         FILE *fp;
1396         int result = 0;
1397
1398         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
1399         if (!boundary)
1400                 return;
1401         boundary_len = strlen(boundary);
1402
1403         procmime_decode_content(mimeinfo);
1404
1405         fp = g_fopen(mimeinfo->data.filename, "rb");
1406         if (fp == NULL) {
1407                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
1408                 return;
1409         }
1410         fseek(fp, mimeinfo->offset, SEEK_SET);
1411         while ((p = fgets(buf, sizeof(buf), fp)) != NULL && result == 0) {
1412                 if (ftell(fp) > (mimeinfo->offset + mimeinfo->length))
1413                         break;
1414
1415                 if (IS_BOUNDARY(buf, boundary, boundary_len)) {
1416                         if (lastoffset != -1) {
1417                                 result = procmime_parse_mimepart(mimeinfo,
1418                                                         hentry[0].body, hentry[1].body,
1419                                                         hentry[2].body, hentry[3].body,
1420                                                         hentry[4].body,
1421                                                         mimeinfo->data.filename, lastoffset,
1422                                                         (ftell(fp) - strlen(buf)) - lastoffset - 1);
1423                         }
1424
1425                         if (buf[2 + boundary_len]     == '-' &&
1426                             buf[2 + boundary_len + 1] == '-')
1427                                 break;
1428
1429                         for (i = 0; i < (sizeof hentry / sizeof hentry[0]) ; i++) {
1430                                 g_free(hentry[i].body);
1431                                 hentry[i].body = NULL;
1432                         }
1433                         procheader_get_header_fields(fp, hentry);
1434                         if (hentry[0].body != NULL) {
1435                                 tmp = conv_unmime_header(hentry[0].body, NULL);
1436                                 g_free(hentry[0].body);
1437                                 hentry[0].body = tmp;
1438                         }
1439                         if (hentry[2].body != NULL) {
1440                                 tmp = conv_unmime_header(hentry[2].body, NULL);
1441                                 g_free(hentry[2].body);
1442                                 hentry[2].body = tmp;
1443                         }
1444                         if (hentry[4].body != NULL) {
1445                                 tmp = conv_unmime_header(hentry[4].body, NULL);
1446                                 g_free(hentry[4].body);
1447                                 hentry[4].body = tmp;
1448                         }
1449                         lastoffset = ftell(fp);
1450                 }
1451         }
1452         for (i = 0; i < (sizeof hentry / sizeof hentry[0]); i++) {
1453                 g_free(hentry[i].body);
1454                 hentry[i].body = NULL;
1455         }
1456         fclose(fp);
1457 }
1458
1459 static void parse_parameters(const gchar *parameters, GHashTable *table)
1460 {
1461         gchar *params, *param, *next;
1462         GSList *convlist = NULL, *concatlist = NULL, *cur;
1463
1464         params = g_strdup(parameters);
1465         param = params;
1466         next = params;
1467         for (; next != NULL; param = next) {
1468                 gchar *attribute, *value, *tmp;
1469                 gint len;
1470                 gboolean convert = FALSE;
1471
1472                 next = strchr_with_skip_quote(param, '"', ';');
1473                 if (next != NULL) {
1474                         next[0] = '\0';
1475                         next++;
1476                 }
1477
1478                 g_strstrip(param);
1479
1480                 attribute = param;
1481                 value = strchr(attribute, '=');
1482                 if (value == NULL)
1483                         continue;
1484
1485                 value[0] = '\0';
1486                 value++;
1487                 while (value[0] == ' ')
1488                         value++;
1489
1490                 g_strdown(attribute);
1491
1492                 len = strlen(attribute);
1493                 if (attribute[len - 1] == '*') {
1494                         gchar *srcpos, *dstpos, *endpos;
1495
1496                         convert = TRUE;
1497                         attribute[len - 1] = '\0';
1498
1499                         srcpos = value;
1500                         dstpos = value;
1501                         endpos = value + strlen(value);
1502                         while (srcpos < endpos) {
1503                                 if (*srcpos != '%')
1504                                         *dstpos = *srcpos;
1505                                 else {
1506                                         guchar dstvalue;
1507
1508                                         if (!get_hex_value(&dstvalue, srcpos[1], srcpos[2]))
1509                                                 *dstpos = '?';
1510                                         else
1511                                                 *dstpos = dstvalue;
1512                                         srcpos += 2;
1513                                 }
1514                                 srcpos++;
1515                                 dstpos++;
1516                         }
1517                         *dstpos = '\0';
1518                 } else {
1519                         if (value[0] == '"')
1520                                 extract_quote(value, '"');
1521                         else if ((tmp = strchr(value, ' ')) != NULL)
1522                                 *tmp = '\0';
1523                 }
1524
1525                 if (attribute) {
1526                         while (attribute[0] == ' ')
1527                                 attribute++;
1528                         while (attribute[strlen(attribute)-1] == ' ')
1529                                 attribute[strlen(attribute)-1] = '\0';
1530                 }
1531                 if (value) {
1532                         while (value[0] == ' ')
1533                                 value++;
1534                         while (value[strlen(value)-1] == ' ')
1535                                 value[strlen(value)-1] = '\0';
1536                 }
1537                 if (strrchr(attribute, '*') != NULL) {
1538                         gchar *tmpattr;
1539
1540                         tmpattr = g_strdup(attribute);
1541                         tmp = strrchr(tmpattr, '*');
1542                         tmp[0] = '\0';
1543
1544                         if ((tmp[1] == '0') && (tmp[2] == '\0') &&
1545                             (g_slist_find_custom(concatlist, attribute, g_str_equal) == NULL))
1546                                 concatlist = g_slist_prepend(concatlist, g_strdup(tmpattr));
1547
1548                         if (convert && (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL))
1549                                 convlist = g_slist_prepend(convlist, g_strdup(tmpattr));
1550
1551                         g_free(tmpattr);
1552                 } else if (convert) {
1553                         if (g_slist_find_custom(convlist, attribute, g_str_equal) == NULL)
1554                                 convlist = g_slist_prepend(convlist, g_strdup(attribute));
1555                 }
1556
1557                 if (g_hash_table_lookup(table, attribute) == NULL)
1558                         g_hash_table_insert(table, g_strdup(attribute), g_strdup(value));
1559         }
1560
1561         for (cur = concatlist; cur != NULL; cur = g_slist_next(cur)) {
1562                 gchar *attribute, *attrwnum, *partvalue;
1563                 gint n = 0;
1564                 GString *value;
1565
1566                 attribute = (gchar *) cur->data;
1567                 value = g_string_sized_new(64);
1568
1569                 attrwnum = g_strdup_printf("%s*%d", attribute, n);
1570                 while ((partvalue = g_hash_table_lookup(table, attrwnum)) != NULL) {
1571                         g_string_append(value, partvalue);
1572
1573                         g_free(attrwnum);
1574                         n++;
1575                         attrwnum = g_strdup_printf("%s*%d", attribute, n);
1576                 }
1577                 g_free(attrwnum);
1578
1579                 g_hash_table_insert(table, g_strdup(attribute), g_strdup(value->str));
1580                 g_string_free(value, TRUE);
1581         }
1582         slist_free_strings(concatlist);
1583         g_slist_free(concatlist);
1584
1585         for (cur = convlist; cur != NULL; cur = g_slist_next(cur)) {
1586                 gchar *attribute, *key, *value;
1587                 gchar *charset, *lang, *oldvalue, *newvalue;
1588
1589                 attribute = (gchar *) cur->data;
1590                 if (!g_hash_table_lookup_extended(
1591                         table, attribute, (gpointer *)(gchar *) &key, (gpointer *)(gchar *) &value))
1592                         continue;
1593
1594                 charset = value;
1595                 lang = strchr(charset, '\'');
1596                 if (lang == NULL)
1597                         continue;
1598                 lang[0] = '\0';
1599                 lang++;
1600                 oldvalue = strchr(lang, '\'');
1601                 if (oldvalue == NULL)
1602                         continue;
1603                 oldvalue[0] = '\0';
1604                 oldvalue++;
1605
1606                 newvalue = conv_codeset_strdup(oldvalue, charset, CS_UTF_8);
1607
1608                 g_hash_table_remove(table, attribute);
1609                 g_free(key);
1610                 g_free(value);
1611
1612                 g_hash_table_insert(table, g_strdup(attribute), newvalue);
1613         }
1614         slist_free_strings(convlist);
1615         g_slist_free(convlist);
1616
1617         g_free(params);
1618 }
1619
1620 static void procmime_parse_content_type(const gchar *content_type, MimeInfo *mimeinfo)
1621 {
1622         g_return_if_fail(content_type != NULL);
1623         g_return_if_fail(mimeinfo != NULL);
1624
1625         /* RFC 2045, page 13 says that the mime subtype is MANDATORY;
1626          * if it's not available we use the default Content-Type */
1627         if ((content_type[0] == '\0') || (strchr(content_type, '/') == NULL)) {
1628                 mimeinfo->type = MIMETYPE_TEXT;
1629                 mimeinfo->subtype = g_strdup("plain");
1630                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1631                                        "charset") == NULL) {
1632                         g_hash_table_insert(mimeinfo->typeparameters,
1633                                     g_strdup("charset"),
1634                                     g_strdup(
1635                                         conv_get_locale_charset_str_no_utf8()));
1636                 }
1637         } else {
1638                 gchar *type, *subtype, *params;
1639
1640                 type = g_strdup(content_type);
1641                 subtype = strchr(type, '/') + 1;
1642                 *(subtype - 1) = '\0';
1643                 if ((params = strchr(subtype, ';')) != NULL) {
1644                         params[0] = '\0';
1645                         params++;
1646                 }
1647
1648                 mimeinfo->type = procmime_get_media_type(type);
1649                 mimeinfo->subtype = g_strdup(subtype);
1650
1651                 /* Get mimeinfo->typeparameters */
1652                 if (params != NULL)
1653                         parse_parameters(params, mimeinfo->typeparameters);
1654
1655                 g_free(type);
1656         }
1657 }
1658
1659 static void procmime_parse_content_disposition(const gchar *content_disposition, MimeInfo *mimeinfo)
1660 {
1661         gchar *tmp, *params;
1662
1663         g_return_if_fail(content_disposition != NULL);
1664         g_return_if_fail(mimeinfo != NULL);
1665
1666         tmp = g_strdup(content_disposition);
1667         if ((params = strchr(tmp, ';')) != NULL) {
1668                 params[0] = '\0';
1669                 params++;
1670         }
1671         g_strstrip(tmp);
1672
1673         if (!g_ascii_strcasecmp(tmp, "inline"))
1674                 mimeinfo->disposition = DISPOSITIONTYPE_INLINE;
1675         else if (!g_ascii_strcasecmp(tmp, "attachment"))
1676                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1677         else
1678                 mimeinfo->disposition = DISPOSITIONTYPE_ATTACHMENT;
1679
1680         if (params != NULL)
1681                 parse_parameters(params, mimeinfo->dispositionparameters);
1682
1683         g_free(tmp);
1684 }
1685
1686
1687 static void procmime_parse_content_encoding(const gchar *content_encoding, MimeInfo *mimeinfo)
1688 {
1689         struct EncodingTable *enc_table;
1690
1691         for (enc_table = encoding_table; enc_table->str != NULL; enc_table++) {
1692                 if (g_ascii_strcasecmp(enc_table->str, content_encoding) == 0) {
1693                         mimeinfo->encoding_type = enc_table->enc_type;
1694                         return;
1695                 }
1696         }
1697         mimeinfo->encoding_type = ENC_UNKNOWN;
1698         return;
1699 }
1700
1701 int procmime_parse_mimepart(MimeInfo *parent,
1702                              gchar *content_type,
1703                              gchar *content_encoding,
1704                              gchar *content_description,
1705                              gchar *content_id,
1706                              gchar *content_disposition,
1707                              const gchar *filename,
1708                              guint offset,
1709                              guint length)
1710 {
1711         MimeInfo *mimeinfo;
1712
1713         /* Create MimeInfo */
1714         mimeinfo = procmime_mimeinfo_new();
1715         mimeinfo->content = MIMECONTENT_FILE;
1716         if (parent != NULL) {
1717                 if (g_node_depth(parent->node) > 32) {
1718                         /* 32 is an arbitrary value
1719                          * this avoids DOSsing ourselves
1720                          * with enormous messages
1721                          */
1722                         procmime_mimeinfo_free_all(mimeinfo);
1723                         return -1;
1724                 }
1725                 g_node_append(parent->node, mimeinfo->node);
1726         }
1727         mimeinfo->data.filename = g_strdup(filename);
1728         mimeinfo->offset = offset;
1729         mimeinfo->length = length;
1730
1731         if (content_type != NULL) {
1732                 procmime_parse_content_type(content_type, mimeinfo);
1733         } else {
1734                 mimeinfo->type = MIMETYPE_TEXT;
1735                 mimeinfo->subtype = g_strdup("plain");
1736                 if (g_hash_table_lookup(mimeinfo->typeparameters,
1737                                        "charset") == NULL) {
1738                         g_hash_table_insert(mimeinfo->typeparameters,
1739                                     g_strdup("charset"),
1740                                     g_strdup(
1741                                         conv_get_locale_charset_str_no_utf8()));
1742                 }
1743         }
1744
1745         if (content_encoding != NULL) {
1746                 procmime_parse_content_encoding(content_encoding, mimeinfo);
1747         } else {
1748                 mimeinfo->encoding_type = ENC_UNKNOWN;
1749         }
1750
1751         if (content_description != NULL)
1752                 mimeinfo->description = g_strdup(content_description);
1753         else
1754                 mimeinfo->description = NULL;
1755
1756         if (content_id != NULL)
1757                 mimeinfo->id = g_strdup(content_id);
1758         else
1759                 mimeinfo->id = NULL;
1760
1761         if (content_disposition != NULL)
1762                 procmime_parse_content_disposition(content_disposition, mimeinfo);
1763         else
1764                 mimeinfo->disposition = DISPOSITIONTYPE_UNKNOWN;
1765
1766         /* Call parser for mime type */
1767         switch (mimeinfo->type) {
1768                 case MIMETYPE_MESSAGE:
1769                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
1770                                 procmime_parse_message_rfc822(mimeinfo);
1771                         }
1772                         break;
1773
1774                 case MIMETYPE_MULTIPART:
1775                         procmime_parse_multipart(mimeinfo);
1776                         break;
1777
1778                 default:
1779                         break;
1780         }
1781
1782         return 0;
1783 }
1784
1785 static gchar *typenames[] = {
1786     "text",
1787     "image",
1788     "audio",
1789     "video",
1790     "application",
1791     "message",
1792     "multipart",
1793     "unknown",
1794 };
1795
1796 static gboolean output_func(GNode *node, gpointer data)
1797 {
1798         guint i, depth;
1799         MimeInfo *mimeinfo = (MimeInfo *) node->data;
1800
1801         depth = g_node_depth(node);
1802         for (i = 0; i < depth; i++)
1803                 printf("    ");
1804         printf("%s/%s (offset:%d length:%d encoding: %d)\n", typenames[mimeinfo->type], mimeinfo->subtype, mimeinfo->offset, mimeinfo->length, mimeinfo->encoding_type);
1805
1806         return FALSE;
1807 }
1808
1809 static void output_mime_structure(MimeInfo *mimeinfo, int indent)
1810 {
1811         g_node_traverse(mimeinfo->node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, output_func, NULL);
1812 }
1813
1814 MimeInfo *procmime_scan_file_with_offset(const gchar *filename, int offset)
1815 {
1816         MimeInfo *mimeinfo;
1817         struct stat buf;
1818
1819         stat(filename, &buf);
1820
1821         mimeinfo = procmime_mimeinfo_new();
1822         mimeinfo->content = MIMECONTENT_FILE;
1823         mimeinfo->encoding_type = ENC_UNKNOWN;
1824         mimeinfo->type = MIMETYPE_MESSAGE;
1825         mimeinfo->subtype = g_strdup("rfc822");
1826         mimeinfo->data.filename = g_strdup(filename);
1827         mimeinfo->offset = offset;
1828         mimeinfo->length = buf.st_size - offset;
1829
1830         procmime_parse_message_rfc822(mimeinfo);
1831         if (debug_get_mode())
1832                 output_mime_structure(mimeinfo, 0);
1833
1834         return mimeinfo;
1835 }
1836
1837 MimeInfo *procmime_scan_file(const gchar *filename)
1838 {
1839         MimeInfo *mimeinfo;
1840
1841         g_return_val_if_fail(filename != NULL, NULL);
1842
1843         mimeinfo = procmime_scan_file_with_offset(filename, 0);
1844
1845         return mimeinfo;
1846 }
1847
1848 MimeInfo *procmime_scan_queue_file(const gchar *filename)
1849 {
1850         FILE *fp;
1851         MimeInfo *mimeinfo;
1852         gchar buf[BUFFSIZE];
1853         gint offset = 0;
1854
1855         g_return_val_if_fail(filename != NULL, NULL);
1856
1857         /* Open file */
1858         if ((fp = g_fopen(filename, "rb")) == NULL)
1859                 return NULL;
1860         /* Skip queue header */
1861         while (fgets(buf, sizeof(buf), fp) != NULL)
1862                 if (buf[0] == '\r' || buf[0] == '\n') break;
1863         offset = ftell(fp);
1864         fclose(fp);
1865
1866         mimeinfo = procmime_scan_file_with_offset(filename, offset);
1867
1868         return mimeinfo;
1869 }
1870
1871 typedef enum {
1872     ENC_AS_TOKEN,
1873     ENC_AS_QUOTED_STRING,
1874     ENC_AS_EXTENDED,
1875     ENC_TO_ASCII,
1876 } EncodeAs;
1877
1878 typedef struct _ParametersData {
1879         FILE *fp;
1880         guint len;
1881         guint ascii_only;
1882 } ParametersData;
1883
1884 static void write_parameters(gpointer key, gpointer value, gpointer user_data)
1885 {
1886         gchar *param = key;
1887         gchar *val = value, *valpos, *tmp;
1888         ParametersData *pdata = (ParametersData *)user_data;
1889         GString *buf = g_string_new("");
1890
1891         EncodeAs encas = ENC_AS_TOKEN;
1892
1893         for (valpos = val; *valpos != 0; valpos++) {
1894                 if (!IS_ASCII(*valpos) || *valpos == '"') {
1895                         encas = ENC_AS_EXTENDED;
1896                         break;
1897                 }
1898
1899                 /* CTLs */
1900                 if (((*valpos >= 0) && (*valpos < 037)) || (*valpos == 0177)) {
1901                         encas = ENC_AS_QUOTED_STRING;
1902                         continue;
1903                 }
1904
1905                 /* tspecials + SPACE */
1906                 switch (*valpos) {
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                 case '?':
1922                 case '=':
1923                         encas = ENC_AS_QUOTED_STRING;
1924                         continue;
1925                 }
1926         }
1927
1928         if (encas == ENC_AS_EXTENDED && pdata->ascii_only == TRUE)
1929                 encas = ENC_TO_ASCII;
1930
1931         switch (encas) {
1932         case ENC_AS_TOKEN:
1933                 g_string_append_printf(buf, "%s=%s", param, val);
1934                 break;
1935
1936         case ENC_TO_ASCII:
1937                 tmp = g_strdup(val);
1938                 g_strcanon(tmp,
1939                         " ()<>@,';:\\/[]?=.0123456789"
1940                         "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
1941                         "abcdefghijklmnopqrstuvwxyz",
1942                         '_');
1943                 g_string_append_printf(buf, "%s=\"%s\"", param, tmp);
1944                 g_free(tmp);
1945                 break;
1946
1947         case ENC_AS_QUOTED_STRING:
1948                 g_string_append_printf(buf, "%s=\"%s\"", param, val);
1949                 break;
1950
1951         case ENC_AS_EXTENDED:
1952                 if (!g_utf8_validate(val, -1, NULL))
1953                         g_string_append_printf(buf, "%s*=%s''", param,
1954                                 conv_get_locale_charset_str());
1955                 else
1956                         g_string_append_printf(buf, "%s*=%s''", param,
1957                                 CS_INTERNAL);
1958                 for (valpos = val; *valpos != '\0'; valpos++) {
1959                         if (IS_ASCII(*valpos) && isalnum(*valpos)) {
1960                                 g_string_append_printf(buf, "%c", *valpos);
1961                         } else {
1962                                 gchar hexstr[3] = "XX";
1963                                 get_hex_str(hexstr, *valpos);
1964                                 g_string_append_printf(buf, "%%%s", hexstr);
1965                         }
1966                 }
1967                 break;
1968         }
1969
1970         if (buf->str && strlen(buf->str)) {
1971                 if (pdata->len + strlen(buf->str) + 2 > 76) {
1972                         fprintf(pdata->fp, ";\n %s", buf->str);
1973                         pdata->len = strlen(buf->str) + 1;
1974                 } else {
1975                         fprintf(pdata->fp, "; %s", buf->str);
1976                         pdata->len += strlen(buf->str) + 2;
1977                 }
1978         }
1979         g_string_free(buf, TRUE);
1980 }
1981
1982 void procmime_write_mime_header(MimeInfo *mimeinfo, FILE *fp)
1983 {
1984         struct TypeTable *type_table;
1985         ParametersData *pdata = g_new0(ParametersData, 1);
1986         debug_print("procmime_write_mime_header\n");
1987
1988         pdata->fp = fp;
1989         pdata->ascii_only = FALSE;
1990
1991         for (type_table = mime_type_table; type_table->str != NULL; type_table++)
1992                 if (mimeinfo->type == type_table->type) {
1993                         gchar *buf = g_strdup_printf(
1994                                 "Content-Type: %s/%s", type_table->str, mimeinfo->subtype);
1995                         fprintf(fp, "%s", buf);
1996                         pdata->len = strlen(buf);
1997                         pdata->ascii_only = TRUE;
1998                         g_free(buf);
1999                         break;
2000                 }
2001         g_hash_table_foreach(mimeinfo->typeparameters, write_parameters, pdata);
2002         g_free(pdata);
2003
2004         fprintf(fp, "\n");
2005
2006         if (mimeinfo->encoding_type != ENC_UNKNOWN)
2007                 fprintf(fp, "Content-Transfer-Encoding: %s\n", procmime_get_encoding_str(mimeinfo->encoding_type));
2008
2009         if (mimeinfo->description != NULL)
2010                 fprintf(fp, "Content-Description: %s\n", mimeinfo->description);
2011
2012         if (mimeinfo->id != NULL)
2013                 fprintf(fp, "Content-ID: %s\n", mimeinfo->id);
2014
2015         if (mimeinfo->disposition != DISPOSITIONTYPE_UNKNOWN) {
2016                 ParametersData *pdata = g_new0(ParametersData, 1);
2017                 gchar *buf = NULL;
2018                 if (mimeinfo->disposition == DISPOSITIONTYPE_INLINE)
2019                         buf = g_strdup("Content-Disposition: inline");
2020                 else if (mimeinfo->disposition == DISPOSITIONTYPE_ATTACHMENT)
2021                         buf = g_strdup("Content-Disposition: attachment");
2022                 else
2023                         buf = g_strdup("Content-Disposition: unknown");
2024
2025                 fprintf(fp, "%s", buf);
2026                 pdata->len = strlen(buf);
2027                 g_free(buf);
2028
2029                 pdata->fp = fp;
2030                 pdata->ascii_only = FALSE;
2031
2032                 g_hash_table_foreach(mimeinfo->dispositionparameters, write_parameters, pdata);
2033                 g_free(pdata);
2034                 fprintf(fp, "\n");
2035         }
2036
2037         fprintf(fp, "\n");
2038 }
2039
2040 gint procmime_write_message_rfc822(MimeInfo *mimeinfo, FILE *fp)
2041 {
2042         FILE *infp;
2043         GNode *childnode;
2044         MimeInfo *child;
2045         gchar buf[BUFFSIZE];
2046         gboolean skip = FALSE;;
2047
2048         debug_print("procmime_write_message_rfc822\n");
2049
2050         /* write header */
2051         switch (mimeinfo->content) {
2052         case MIMECONTENT_FILE:
2053                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2054                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2055                         return -1;
2056                 }
2057                 fseek(infp, mimeinfo->offset, SEEK_SET);
2058                 while (fgets(buf, sizeof(buf), infp) == buf) {
2059                         if (buf[0] == '\n' && buf[1] == '\0')
2060                                 break;
2061                         if (skip && (buf[0] == ' ' || buf[0] == '\t'))
2062                                 continue;
2063                         if (g_ascii_strncasecmp(buf, "Mime-Version:", 13) == 0 ||
2064                             g_ascii_strncasecmp(buf, "Content-Type:", 13) == 0 ||
2065                             g_ascii_strncasecmp(buf, "Content-Transfer-Encoding:", 26) == 0 ||
2066                             g_ascii_strncasecmp(buf, "Content-Description:", 20) == 0 ||
2067                             g_ascii_strncasecmp(buf, "Content-ID:", 11) == 0 ||
2068                             g_ascii_strncasecmp(buf, "Content-Disposition:", 20) == 0) {
2069                                 skip = TRUE;
2070                                 continue;
2071                         }
2072                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2073                         skip = FALSE;
2074                 }
2075                 fclose(infp);
2076                 break;
2077
2078         case MIMECONTENT_MEM:
2079                 fwrite(mimeinfo->data.mem,
2080                                 sizeof(gchar),
2081                                 strlen(mimeinfo->data.mem),
2082                                 fp);
2083                 break;
2084
2085         default:
2086                 break;
2087         }
2088
2089         childnode = mimeinfo->node->children;
2090         if (childnode == NULL)
2091                 return -1;
2092
2093         child = (MimeInfo *) childnode->data;
2094         fprintf(fp, "Mime-Version: 1.0\n");
2095         procmime_write_mime_header(child, fp);
2096         return procmime_write_mimeinfo(child, fp);
2097 }
2098
2099 gint procmime_write_multipart(MimeInfo *mimeinfo, FILE *fp)
2100 {
2101         FILE *infp;
2102         GNode *childnode;
2103         gchar *boundary, *str, *str2;
2104         gchar buf[BUFFSIZE];
2105         gboolean firstboundary;
2106
2107         debug_print("procmime_write_multipart\n");
2108
2109         boundary = g_hash_table_lookup(mimeinfo->typeparameters, "boundary");
2110
2111         switch (mimeinfo->content) {
2112         case MIMECONTENT_FILE:
2113                 if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2114                         FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2115                         return -1;
2116                 }
2117                 fseek(infp, mimeinfo->offset, SEEK_SET);
2118                 while (fgets(buf, sizeof(buf), infp) == buf) {
2119                         if (IS_BOUNDARY(buf, boundary, strlen(boundary)))
2120                                 break;
2121                         fwrite(buf, sizeof(gchar), strlen(buf), fp);
2122                 }
2123                 fclose(infp);
2124                 break;
2125
2126         case MIMECONTENT_MEM:
2127                 str = g_strdup(mimeinfo->data.mem);
2128                 if (((str2 = strstr(str, boundary)) != NULL) && ((str2 - str) >= 2) &&
2129                     (*(str2 - 1) == '-') && (*(str2 - 2) == '-'))
2130                         *(str2 - 2) = '\0';
2131                 fwrite(str, sizeof(gchar), strlen(str), fp);
2132                 g_free(str);
2133                 break;
2134
2135         default:
2136                 break;
2137         }
2138
2139         childnode = mimeinfo->node->children;
2140         firstboundary = TRUE;
2141         while (childnode != NULL) {
2142                 MimeInfo *child = childnode->data;
2143
2144                 if (firstboundary)
2145                         firstboundary = FALSE;
2146                 else
2147                         fprintf(fp, "\n");
2148                 fprintf(fp, "--%s\n", boundary);
2149
2150                 procmime_write_mime_header(child, fp);
2151                 if (procmime_write_mimeinfo(child, fp) < 0)
2152                         return -1;
2153
2154                 childnode = g_node_next_sibling(childnode);
2155         }
2156         fprintf(fp, "\n--%s--\n", boundary);
2157
2158         return 0;
2159 }
2160
2161 gint procmime_write_mimeinfo(MimeInfo *mimeinfo, FILE *fp)
2162 {
2163         FILE *infp;
2164
2165         debug_print("procmime_write_mimeinfo\n");
2166
2167         if (G_NODE_IS_LEAF(mimeinfo->node)) {
2168                 switch (mimeinfo->content) {
2169                 case MIMECONTENT_FILE:
2170                         if ((infp = g_fopen(mimeinfo->data.filename, "rb")) == NULL) {
2171                                 FILE_OP_ERROR(mimeinfo->data.filename, "fopen");
2172                                 return -1;
2173                         }
2174                         copy_file_part_to_fp(infp, mimeinfo->offset, mimeinfo->length, fp);
2175                         fclose(infp);
2176                         return 0;
2177
2178                 case MIMECONTENT_MEM:
2179                         fwrite(mimeinfo->data.mem,
2180                                         sizeof(gchar),
2181                                         strlen(mimeinfo->data.mem),
2182                                         fp);
2183                         return 0;
2184
2185                 default:
2186                         return 0;
2187                 }
2188         } else {
2189                 /* Call writer for mime type */
2190                 switch (mimeinfo->type) {
2191                 case MIMETYPE_MESSAGE:
2192                         if (g_ascii_strcasecmp(mimeinfo->subtype, "rfc822") == 0) {
2193                                 return procmime_write_message_rfc822(mimeinfo, fp);
2194                         }
2195                         break;
2196
2197                 case MIMETYPE_MULTIPART:
2198                         return procmime_write_multipart(mimeinfo, fp);
2199
2200                 default:
2201                         break;
2202                 }
2203
2204                 return -1;
2205         }
2206
2207         return 0;
2208 }
2209
2210 gchar *procmime_get_part_file_name(MimeInfo *mimeinfo)
2211 {
2212         gchar *base;
2213
2214         if ((mimeinfo->type == MIMETYPE_TEXT) && !g_ascii_strcasecmp(mimeinfo->subtype, "html"))
2215                 base = g_strdup("mimetmp.html");
2216         else {
2217                 const gchar *basetmp;
2218                 gchar *basename;
2219
2220                 basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "filename");
2221                 if (basetmp == NULL)
2222                         basetmp = procmime_mimeinfo_get_parameter(mimeinfo, "name");
2223                 if (basetmp == NULL)
2224                         basetmp = "mimetmp";
2225                 basename = g_path_get_basename(basetmp);
2226                 if (*basename == '\0') {
2227                         g_free(basename);
2228                         basename = g_strdup("mimetmp");
2229                 }
2230                 base = conv_filename_from_utf8(basename);
2231                 g_free(basename);
2232                 subst_for_shellsafe_filename(base);
2233         }
2234
2235         return base;
2236 }
2237