lib/silcutil/silcvcard.c

   1 /*
   2
   3   silcvcard.c
   4
   5   Author: Pekka Riikonen <priikone@silcnet.org>
   6
   7   Copyright (C) 2002 Pekka Riikonen
   8
   9   This program is free software; you can redistribute it and/or modify
  10   it under the terms of the GNU General Public License as published by
  11   the Free Software Foundation; version 2 of the License.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18 */
  19 /* $Id$ */
  20 /* Implementation of the VCard (RFC 2426) */
  21
  22 #include "silcincludes.h"
  23
  24 #define VCARD_HEADER "BEGIN:VCARD\n"
  25 #define VCARD_VERSION "VERSION:3.0\n"
  26 #define VCARD_FOOTER "END:VCARD\n"
  27
  28 /* Encode VCard */
  29
  30 unsigned char *silc_vcard_encode(SilcVCard vcard, SilcUInt32 *vcard_len)
  31 {
  32   SilcBufferStruct buffer;
  33   int i;
  34
  35   if (!vcard->full_name || !vcard->family_name || !vcard->first_name)
  36     return NULL;
  37
  38   memset(&buffer, 0, sizeof(buffer));
  39   silc_buffer_strformat(
  40        &buffer,
  41        VCARD_HEADER,
  42        VCARD_VERSION,
  43        "FN:", vcard->full_name, "\n",
  44        "N:", vcard->family_name, ";", vcard->first_name, ";",
  45        vcard->middle_names, ";", vcard->prefix, ";", vcard->suffix, "\n",
  46        SILC_STR_END);
  47
  48   if (vcard->nickname)
  49     silc_buffer_strformat(&buffer,
  50                           "NICKNAME:", vcard->nickname, "\n",
  51                           SILC_STR_END);
  52   if (vcard->bday)
  53     silc_buffer_strformat(&buffer,
  54                           "BDAY:", vcard->bday, "\n",
  55                           SILC_STR_END);
  56   if (vcard->title)
  57     silc_buffer_strformat(&buffer,
  58                           "TITLE:", vcard->title, "\n",
  59                           SILC_STR_END);
  60   if (vcard->role)
  61     silc_buffer_strformat(&buffer,
  62                           "ROLE:", vcard->role, "\n",
  63                           SILC_STR_END);
  64   if (vcard->org_name)
  65     silc_buffer_strformat(&buffer,
  66                           "ORG:", vcard->org_name, ";", vcard->org_unit, "\n",
  67                           SILC_STR_END);
  68   if (vcard->categories)
  69     silc_buffer_strformat(&buffer,
  70                           "CATEGORIES:", vcard->categories, "\n",
  71                           SILC_STR_END);
  72   if (vcard->class)
  73     silc_buffer_strformat(&buffer,
  74                           "CLASS:", vcard->class, "\n",
  75                           SILC_STR_END);
  76   if (vcard->url)
  77     silc_buffer_strformat(&buffer,
  78                           "URL:", vcard->url, "\n",
  79                           SILC_STR_END);
  80   if (vcard->label)
  81     silc_buffer_strformat(&buffer,
  82                           "LABEL;", vcard->url, "\n",
  83                           SILC_STR_END);
  84   for (i = 0; i < vcard->num_addrs; i++) {
  85     silc_buffer_strformat(&buffer,
  86                           "ADR;TYPE=",
  87                           vcard->addrs[i].type, ":",
  88                           vcard->addrs[i].pbox, ";",
  89                           vcard->addrs[i].ext_addr, ";",
  90                           vcard->addrs[i].street_addr, ";",
  91                           vcard->addrs[i].city, ";",
  92                           vcard->addrs[i].state, ";",
  93                           vcard->addrs[i].code, ";",
  94                           vcard->addrs[i].country, "\n",
  95                           SILC_STR_END);
  96   }
  97   for (i = 0; i < vcard->num_tels; i++) {
  98     silc_buffer_strformat(&buffer,
  99                           "TEL;TYPE=",
 100                           vcard->tels[i].type, ":",
 101                           vcard->tels[i].tel, "\n",
 102                           SILC_STR_END);
 103   }
 104   for (i = 0; i < vcard->num_emails; i++) {
 105     silc_buffer_strformat(&buffer,
 106                           "EMAIL;TYPE=",
 107                           vcard->emails[i].type, ":",
 108                           vcard->emails[i].address, "\n",
 109                           SILC_STR_END);
 110   }
 111   if (vcard->note)
 112     silc_buffer_strformat(&buffer,
 113                           "NOTE:", vcard->note, "\n",
 114                           SILC_STR_END);
 115   if (vcard->rev)
 116     silc_buffer_strformat(&buffer,
 117                           "REV:", vcard->rev, "\n",
 118                           SILC_STR_END);
 119
 120   silc_buffer_strformat(&buffer, VCARD_FOOTER, SILC_STR_END);
 121
 122   if (vcard_len)
 123     *vcard_len = buffer.truelen;
 124
 125   return buffer.head;
 126 }
 127
 128 /* Take one token */
 129 #define VCARD_TOKEN(x)                          \
 130   if (!(x)) {                                   \
 131     (x) = silc_memdup(val + off, i - off);      \
 132     off = i + 1;                                \
 133     continue;                                   \
 134   }
 135
 136 /* Take on TYPE= token and prepare for next token, accept the
 137    type also without TYPE= as it is possible */
 138 #define VCARD_TYPETOKEN(x)                                      \
 139   if (!(x)) {                                                   \
 140     int tmpi = 0;                                               \
 141     if (!strcasecmp(val + off, "TYPE="))                        \
 142       tmpi = 5;                                                 \
 143     (x) = silc_memdup(val + off + tmpi, i - off - tmpi - 1);    \
 144     tmpi = off + tmpi + strlen((x)) + 1;                        \
 145     off = i;                                                    \
 146     i = tmpi;                                                   \
 147   }
 148
 149 /* Take last token */
 150 #define VCARD_LASTTOKEN(x)                      \
 151   if (!(x)) {                                   \
 152     if (off < len)                              \
 153       (x) = silc_memdup(val + off, len - off);  \
 154   }                                             \
 155
 156 /* Decode VCard */
 157
 158 bool silc_vcard_decode(const unsigned char *data, SilcUInt32 data_len,
 159                        SilcVCard vcard)
 160 {
 161   unsigned char *val;
 162   bool has_begin = FALSE, has_end = FALSE;
 163   int len, i, off = 0;
 164
 165   val = (unsigned char *)data;
 166   while (val) {
 167     len = 0;
 168     for (i = (val - data); i < data_len; i++) {
 169       if (data[i] == '\0' || data[i] == '\n') {
 170         len = i - (val - data);
 171         break;
 172       }
 173     }
 174     if (!len || len > data_len - (val - data))
 175       break;
 176
 177     if (!strncasecmp(val, VCARD_HEADER, strlen(VCARD_HEADER))) {
 178       has_begin = TRUE;
 179     } else if (!strncasecmp(val, "FN:", 3)) {
 180       if (vcard->full_name)
 181         break;
 182       if (len - 3)
 183         vcard->full_name = silc_memdup(val + 3, len - 3);
 184     } else if (!strncasecmp(val, "N:", 2)) {
 185       if (vcard->family_name)
 186         break;
 187       if (len - 2) {
 188         off = 2;
 189         for (i = off; i < len; i++)
 190           if (val[i] == ';') {
 191             VCARD_TOKEN(vcard->family_name);
 192             VCARD_TOKEN(vcard->first_name);
 193             VCARD_TOKEN(vcard->middle_names);
 194             VCARD_TOKEN(vcard->prefix);
 195           }
 196         if (!vcard->family_name && !vcard->first_name) {
 197           VCARD_LASTTOKEN(vcard->family_name);
 198           off += (len - off);
 199         }
 200         if (!vcard->first_name) {
 201           VCARD_LASTTOKEN(vcard->first_name);
 202         } else {
 203           VCARD_LASTTOKEN(vcard->suffix);
 204         }
 205       }
 206     } else if (!strncasecmp(val, "NICKNAME:", 9)) {
 207       if (vcard->nickname)
 208         continue;
 209       if (len - 9)
 210         vcard->nickname = silc_memdup(val + 9, len - 9);
 211     } else if (!strncasecmp(val, "BDAY:", 5)) {
 212       if (vcard->bday)
 213         continue;
 214       if (len - 5)
 215         vcard->bday = silc_memdup(val + 5, len - 5);
 216     } else if (!strncasecmp(val, "TITLE:", 6)) {
 217       if (vcard->title)
 218         continue;
 219       if (len - 6)
 220         vcard->title = silc_memdup(val + 6, len - 6);
 221     } else if (!strncasecmp(val, "ROLE:", 5)) {
 222       if (vcard->role)
 223         continue;
 224       if (len - 5)
 225         vcard->role = silc_memdup(val + 5, len - 5);
 226     } else if (!strncasecmp(val, "ORG:", 4)) {
 227       if (vcard->org_name)
 228         continue;
 229       if (len - 4) {
 230         off = 4;
 231         for (i = off; i < len; i++) {
 232           if (val[i] == ';') {
 233             VCARD_TOKEN(vcard->org_name);
 234             break;
 235           }
 236         }
 237         /* It's possible to have ORG without last ';', so check for it */
 238         if (!vcard->org_name) {
 239           VCARD_LASTTOKEN(vcard->org_name);
 240         } else {
 241           VCARD_LASTTOKEN(vcard->org_unit);
 242         }
 243       }
 244     } else if (!strncasecmp(val, "CATEGORIES:", 11)) {
 245       if (vcard->categories)
 246         continue;
 247       if (len - 11)
 248         vcard->categories = silc_memdup(val + 11, len - 11);
 249     } else if (!strncasecmp(val, "CLASS:", 6)) {
 250       if (vcard->class)
 251         continue;
 252       if (len - 6)
 253         vcard->class = silc_memdup(val + 6, len - 6);
 254     } else if (!strncasecmp(val, "URL:", 4)) {
 255       if (vcard->url)
 256         continue;
 257       if (len - 4)
 258         vcard->url = silc_memdup(val + 4, len - 4);
 259     } else if (!strncasecmp(val, "LABEL;", 6)) {
 260       if (vcard->label)
 261         continue;
 262       if (len - 6)
 263         vcard->label = silc_memdup(val + 6, len - 6);
 264     } else if (!strncasecmp(val, "ADR;", 4)) {
 265       vcard->addrs = silc_realloc(vcard->addrs, sizeof(*vcard->addrs) *
 266                                   (vcard->num_addrs + 1));
 267       memset(&vcard->addrs[vcard->num_addrs], 0, sizeof(*vcard->addrs));
 268       if (len - 4) {
 269         off = 4;
 270         for (i = off; i < len; i++)
 271           if (val[i] == ';') {
 272             VCARD_TYPETOKEN(vcard->addrs[vcard->num_addrs].type);
 273             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].pbox);
 274             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].ext_addr);
 275             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].street_addr);
 276             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].city);
 277             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].state);
 278             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].code);
 279           }
 280         VCARD_LASTTOKEN(vcard->addrs[vcard->num_addrs].country);
 281       }
 282       vcard->num_addrs++;
 283     } else if (!strncasecmp(val, "TEL;", 4)) {
 284       vcard->tels = silc_realloc(vcard->tels, sizeof(*vcard->tels) *
 285                                  (vcard->num_tels + 1));
 286       memset(&vcard->tels[vcard->num_tels], 0, sizeof(*vcard->tels));
 287       if (len - 4) {
 288         off = 4;
 289         for (i = off; i < len; i++)
 290           if (val[i] == ':') {
 291             i++;
 292             VCARD_TYPETOKEN(vcard->tels[vcard->num_tels].type);
 293             break;
 294           }
 295         VCARD_LASTTOKEN(vcard->tels[vcard->num_tels].tel);
 296       }
 297       vcard->num_tels++;
 298     } else if (!strncasecmp(val, "EMAIL;", 6)) {
 299       vcard->emails = silc_realloc(vcard->emails, sizeof(*vcard->emails) *
 300                                    (vcard->num_emails + 1));
 301       memset(&vcard->emails[vcard->num_emails], 0, sizeof(*vcard->emails));
 302       if (len - 6) {
 303         off = 6;
 304         for (i = off; i < len; i++)
 305           if (val[i] == ':') {
 306             i++;
 307             VCARD_TYPETOKEN(vcard->emails[vcard->num_emails].type);
 308             break;
 309           }
 310         VCARD_LASTTOKEN(vcard->emails[vcard->num_emails].address);
 311       }
 312       vcard->num_emails++;
 313     } else if (!strncasecmp(val, "NOTE:", 5)) {
 314       if (vcard->note)
 315         continue;
 316       if (len - 5)
 317         vcard->note = silc_memdup(val + 5, len - 5);
 318     } else if (!strncasecmp(val, "REV:", 4)) {
 319       if (vcard->rev)
 320         continue;
 321       if (len - 4)
 322         vcard->rev = silc_memdup(val + 4, len - 4);
 323     } else if (!strncasecmp(val, VCARD_FOOTER, strlen(VCARD_FOOTER))) {
 324       has_end = TRUE;
 325       break;
 326     }
 327
 328     val = strchr(val, '\n');
 329     if (!val || !(*val))
 330       break;
 331     val++;
 332     if (!val || !(*val))
 333       break;
 334   }
 335
 336   if (!has_begin || !has_end) {
 337     silc_vcard_free(vcard);
 338     return FALSE;
 339   }
 340
 341   return TRUE;
 342 }
 343
 344 /* Allocate vcard context */
 345
 346 SilcVCard silc_vcard_alloc(void)
 347 {
 348   SilcVCard vcard = silc_calloc(1, sizeof(*vcard));
 349   if (!vcard)
 350     return NULL;
 351   vcard->dynamic = TRUE;
 352   return vcard;
 353 }
 354
 355 /* Free the vcard structure */
 356
 357 void silc_vcard_free(SilcVCard vcard)
 358 {
 359   int i;
 360
 361   silc_free(vcard->full_name);
 362   silc_free(vcard->family_name);
 363   silc_free(vcard->first_name);
 364   silc_free(vcard->middle_names);
 365   silc_free(vcard->prefix);
 366   silc_free(vcard->suffix);
 367   silc_free(vcard->nickname);
 368   silc_free(vcard->bday);
 369   silc_free(vcard->title);
 370   silc_free(vcard->role);
 371   silc_free(vcard->org_name);
 372   silc_free(vcard->org_unit);
 373   silc_free(vcard->categories);
 374   silc_free(vcard->class);
 375   silc_free(vcard->url);
 376   silc_free(vcard->label);
 377   for (i = 0; i < vcard->num_addrs; i++) {
 378     silc_free(vcard->addrs[i].type);
 379     silc_free(vcard->addrs[i].pbox);
 380     silc_free(vcard->addrs[i].ext_addr);
 381     silc_free(vcard->addrs[i].street_addr);
 382     silc_free(vcard->addrs[i].city);
 383     silc_free(vcard->addrs[i].state);
 384     silc_free(vcard->addrs[i].code);
 385     silc_free(vcard->addrs[i].country);
 386   }
 387   silc_free(vcard->addrs);
 388   for (i = 0; i < vcard->num_tels; i++) {
 389     silc_free(vcard->tels[i].type);
 390     silc_free(vcard->tels[i].tel);
 391   }
 392   silc_free(vcard->tels);
 393   for (i = 0; i < vcard->num_emails; i++) {
 394     silc_free(vcard->emails[i].type);
 395     silc_free(vcard->emails[i].address);
 396   }
 397   silc_free(vcard->emails);
 398   silc_free(vcard->note);
 399   silc_free(vcard->rev);
 400   if (!vcard->dynamic)
 401     memset(vcard, 0, sizeof(*vcard));
 402
 403   if (vcard->dynamic) {
 404     memset(vcard, 0, sizeof(*vcard));
 405     silc_free(vcard);
 406   }
 407 }
 408
 409 /* Print card to file stream */
 410
 411 void silc_vcard_fprintf(SilcVCard vcard, FILE *stream)
 412 {
 413   int i;
 414   fprintf(stream, "%s", VCARD_HEADER);
 415   fprintf(stream, "%s", VCARD_VERSION);
 416   if (vcard->full_name)
 417     fprintf(stream, "FN:%s\n", vcard->full_name);
 418   if (vcard->family_name)
 419     fprintf(stream, "N:%s;%s;%s;%s;%s\n",
 420             vcard->family_name,
 421             vcard->first_name ? vcard->first_name : "",
 422             vcard->middle_names ? vcard->middle_names : "",
 423             vcard->prefix ? vcard->prefix : "",
 424             vcard->suffix ? vcard->suffix : "");
 425   if (vcard->nickname)
 426     fprintf(stream, "NICKNAME:%s\n", vcard->nickname);
 427   if (vcard->bday)
 428     fprintf(stream, "BDAY:%s\n", vcard->bday);
 429   if (vcard->title)
 430     fprintf(stream, "TITLE:%s\n", vcard->title);
 431   if (vcard->role)
 432     fprintf(stream, "ROLE:%s\n", vcard->role);
 433   if (vcard->org_name)
 434     fprintf(stream, "ORG:%s;%s\n", vcard->org_name,
 435             vcard->org_unit ? vcard->org_unit : "");
 436   if (vcard->categories)
 437     fprintf(stream, "CATEGORIES:%s\n", vcard->categories);
 438   if (vcard->class)
 439     fprintf(stream, "CLASS:%s\n", vcard->class);
 440   if (vcard->url)
 441     fprintf(stream, "URL:%s\n", vcard->url);
 442   if (vcard->label)
 443     fprintf(stream, "LABEL;%s\n", vcard->label);
 444   for (i = 0; i < vcard->num_addrs; i++) {
 445     fprintf(stream, "ADR;TYPE=%s:%s;%s;%s;%s;%s;%s;%s\n",
 446             vcard->addrs[i].type,
 447             vcard->addrs[i].pbox ? vcard->addrs[i].pbox : "",
 448             vcard->addrs[i].ext_addr ? vcard->addrs[i].ext_addr : "",
 449             vcard->addrs[i].street_addr ? vcard->addrs[i].street_addr : "",
 450             vcard->addrs[i].city ? vcard->addrs[i].city : "",
 451             vcard->addrs[i].state ? vcard->addrs[i].state : "",
 452             vcard->addrs[i].code ? vcard->addrs[i].code : "",
 453             vcard->addrs[i].country ? vcard->addrs[i].country : "");
 454   }
 455   for (i = 0; i < vcard->num_tels; i++) {
 456     fprintf(stream, "TEL;TYPE=%s:%s\n",
 457             vcard->tels[i].type,
 458             vcard->tels[i].tel ? vcard->tels[i].tel : "");
 459   }
 460   for (i = 0; i < vcard->num_emails; i++) {
 461     fprintf(stream, "EMAIL;TYPE=%s:%s\n",
 462             vcard->emails[i].type,
 463             vcard->emails[i].address ? vcard->emails[i].address : "");
 464   }
 465   if (vcard->note)
 466     fprintf(stream, "NOTE:%s\n", vcard->note);
 467   if (vcard->rev)
 468     fprintf(stream, "REV:%s\n", vcard->rev);
 469   fprintf(stream, "%s", VCARD_FOOTER);
 470   fflush(stream);
 471 }