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 */
 137 #define VCARD_TYPETOKEN(x)                              \
 138   if (!(x)) {                                           \
 139     int tmpi;                                           \
 140     (x) = silc_memdup(val + off + 5, i - off - 5 - 1);  \
 141     tmpi = off + 5 + strlen((x)) + 1;                   \
 142     off = i;                                            \
 143     i = tmpi;                                           \
 144   }
 145
 146 /* Take last token */
 147 #define VCARD_LASTTOKEN(x)                      \
 148   if (!(x)) {                                   \
 149     if (off < len)                              \
 150       (x) = silc_memdup(val + off, len - off);  \
 151   }                                             \
 152
 153 /* Decode VCard */
 154
 155 bool silc_vcard_decode(const unsigned char *data, SilcUInt32 data_len,
 156                        SilcVCard vcard)
 157 {
 158   unsigned char *val;
 159   bool has_begin = FALSE, has_end = FALSE;
 160   int len, i, off = 0;
 161
 162   val = (unsigned char *)data;
 163   while (val) {
 164     len = 0;
 165     for (i = (val - data); i < data_len; i++) {
 166       if (data[i] == '\0' || data[i] == '\n') {
 167         len = i - (val - data);
 168         break;
 169       }
 170     }
 171     if (!len || len > data_len - (val - data))
 172       break;
 173
 174     if (!strncasecmp(val, VCARD_HEADER, strlen(VCARD_HEADER))) {
 175       has_begin = TRUE;
 176     } else if (!strncasecmp(val, "FN:", 3)) {
 177       if (vcard->full_name)
 178         break;
 179       if (len - 3)
 180         vcard->full_name = silc_memdup(val + 3, len - 3);
 181     } else if (!strncasecmp(val, "N:", 2)) {
 182       if (vcard->family_name)
 183         break;
 184       if (len - 2) {
 185         off = 2;
 186         for (i = off; i < len; i++)
 187           if (val[i] == ';') {
 188             VCARD_TOKEN(vcard->family_name);
 189             VCARD_TOKEN(vcard->first_name);
 190             VCARD_TOKEN(vcard->middle_names);
 191             VCARD_TOKEN(vcard->prefix);
 192           }
 193         VCARD_LASTTOKEN(vcard->suffix);
 194       }
 195     } else if (!strncasecmp(val, "NICKNAME:", 9)) {
 196       if (vcard->nickname)
 197         continue;
 198       if (len - 9)
 199         vcard->nickname = silc_memdup(val + 9, len - 9);
 200     } else if (!strncasecmp(val, "BDAY:", 5)) {
 201       if (vcard->bday)
 202         continue;
 203       if (len - 5)
 204         vcard->bday = silc_memdup(val + 5, len - 5);
 205     } else if (!strncasecmp(val, "TITLE:", 6)) {
 206       if (vcard->title)
 207         continue;
 208       if (len - 6)
 209         vcard->title = silc_memdup(val + 6, len - 6);
 210     } else if (!strncasecmp(val, "ROLE:", 5)) {
 211       if (vcard->role)
 212         continue;
 213       if (len - 5)
 214         vcard->role = silc_memdup(val + 5, len - 5);
 215     } else if (!strncasecmp(val, "ORG:", 4)) {
 216       if (vcard->org_name)
 217         continue;
 218       if (len - 4) {
 219         off = 4;
 220         for (i = off; i < len; i++) {
 221           if (val[i] == ';') {
 222             VCARD_TOKEN(vcard->org_name);
 223             break;
 224           }
 225         }
 226         /* It's possible to have ORG without last ';', so check for it */
 227         if (!vcard->org_name) {
 228           VCARD_LASTTOKEN(vcard->org_name);
 229         } else {
 230           VCARD_LASTTOKEN(vcard->org_unit);
 231         }
 232       }
 233     } else if (!strncasecmp(val, "CATEGORIES:", 11)) {
 234       if (vcard->categories)
 235         continue;
 236       if (len - 11)
 237         vcard->categories = silc_memdup(val + 11, len - 11);
 238     } else if (!strncasecmp(val, "CLASS:", 6)) {
 239       if (vcard->class)
 240         continue;
 241       if (len - 6)
 242         vcard->class = silc_memdup(val + 6, len - 6);
 243     } else if (!strncasecmp(val, "URL:", 4)) {
 244       if (vcard->url)
 245         continue;
 246       if (len - 4)
 247         vcard->url = silc_memdup(val + 4, len - 4);
 248     } else if (!strncasecmp(val, "LABEL;", 6)) {
 249       if (vcard->label)
 250         continue;
 251       if (len - 6)
 252         vcard->label = silc_memdup(val + 6, len - 6);
 253     } else if (!strncasecmp(val, "ADR;", 4)) {
 254       vcard->addrs = silc_realloc(vcard->addrs, sizeof(*vcard->addrs) *
 255                                   (vcard->num_addrs + 1));
 256       memset(&vcard->addrs[vcard->num_addrs], 0, sizeof(*vcard->addrs));
 257       if (len - 4) {
 258         off = 4;
 259         for (i = off; i < len; i++)
 260           if (val[i] == ';') {
 261             VCARD_TYPETOKEN(vcard->addrs[vcard->num_addrs].type);
 262             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].pbox);
 263             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].ext_addr);
 264             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].street_addr);
 265             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].city);
 266             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].state);
 267             VCARD_TOKEN(vcard->addrs[vcard->num_addrs].code);
 268           }
 269         VCARD_LASTTOKEN(vcard->addrs[vcard->num_addrs].country);
 270       }
 271       vcard->num_addrs++;
 272     } else if (!strncasecmp(val, "TEL;", 4)) {
 273       vcard->tels = silc_realloc(vcard->tels, sizeof(*vcard->tels) *
 274                                  (vcard->num_tels + 1));
 275       memset(&vcard->tels[vcard->num_tels], 0, sizeof(*vcard->tels));
 276       if (len - 4) {
 277         off = 4;
 278         for (i = off; i < len; i++)
 279           if (val[i] == ':') {
 280             i++;
 281             VCARD_TYPETOKEN(vcard->tels[vcard->num_tels].type);
 282             break;
 283           }
 284         VCARD_LASTTOKEN(vcard->tels[vcard->num_tels].tel);
 285       }
 286       vcard->num_tels++;
 287     } else if (!strncasecmp(val, "EMAIL;", 6)) {
 288       vcard->emails = silc_realloc(vcard->emails, sizeof(*vcard->emails) *
 289                                    (vcard->num_emails + 1));
 290       memset(&vcard->emails[vcard->num_emails], 0, sizeof(*vcard->emails));
 291       if (len - 6) {
 292         off = 6;
 293         for (i = off; i < len; i++)
 294           if (val[i] == ':') {
 295             i++;
 296             VCARD_TYPETOKEN(vcard->emails[vcard->num_emails].type);
 297             break;
 298           }
 299         VCARD_LASTTOKEN(vcard->emails[vcard->num_emails].address);
 300       }
 301       vcard->num_emails++;
 302     } else if (!strncasecmp(val, "NOTE:", 5)) {
 303       if (vcard->note)
 304         continue;
 305       if (len - 5)
 306         vcard->note = silc_memdup(val + 5, len - 5);
 307     } else if (!strncasecmp(val, "REV:", 4)) {
 308       if (vcard->rev)
 309         continue;
 310       if (len - 4)
 311         vcard->rev = silc_memdup(val + 4, len - 4);
 312     } else if (!strncasecmp(val, VCARD_FOOTER, strlen(VCARD_FOOTER))) {
 313       has_end = TRUE;
 314       break;
 315     }
 316
 317     val = strchr(val, '\n');
 318     if (!val || !(*val))
 319       break;
 320     val++;
 321     if (!val || !(*val))
 322       break;
 323   }
 324
 325   if (!has_begin || !has_end) {
 326     silc_vcard_free(vcard);
 327     return FALSE;
 328   }
 329
 330   return TRUE;
 331 }
 332
 333 /* Allocate vcard context */
 334
 335 SilcVCard silc_vcard_alloc(void)
 336 {
 337   SilcVCard vcard = silc_calloc(1, sizeof(*vcard));
 338   if (!vcard)
 339     return NULL;
 340   vcard->dynamic = TRUE;
 341   return vcard;
 342 }
 343
 344 /* Free the vcard structure */
 345
 346 void silc_vcard_free(SilcVCard vcard)
 347 {
 348   int i;
 349
 350   silc_free(vcard->full_name);
 351   silc_free(vcard->family_name);
 352   silc_free(vcard->first_name);
 353   silc_free(vcard->middle_names);
 354   silc_free(vcard->prefix);
 355   silc_free(vcard->suffix);
 356   silc_free(vcard->nickname);
 357   silc_free(vcard->bday);
 358   silc_free(vcard->title);
 359   silc_free(vcard->role);
 360   silc_free(vcard->org_name);
 361   silc_free(vcard->org_unit);
 362   silc_free(vcard->categories);
 363   silc_free(vcard->class);
 364   silc_free(vcard->url);
 365   silc_free(vcard->label);
 366   for (i = 0; i < vcard->num_addrs; i++) {
 367     silc_free(vcard->addrs[i].type);
 368     silc_free(vcard->addrs[i].pbox);
 369     silc_free(vcard->addrs[i].ext_addr);
 370     silc_free(vcard->addrs[i].street_addr);
 371     silc_free(vcard->addrs[i].city);
 372     silc_free(vcard->addrs[i].state);
 373     silc_free(vcard->addrs[i].code);
 374     silc_free(vcard->addrs[i].country);
 375   }
 376   silc_free(vcard->addrs);
 377   for (i = 0; i < vcard->num_tels; i++) {
 378     silc_free(vcard->tels[i].type);
 379     silc_free(vcard->tels[i].tel);
 380   }
 381   silc_free(vcard->tels);
 382   for (i = 0; i < vcard->num_emails; i++) {
 383     silc_free(vcard->emails[i].type);
 384     silc_free(vcard->emails[i].address);
 385   }
 386   silc_free(vcard->emails);
 387   silc_free(vcard->note);
 388   silc_free(vcard->rev);
 389   if (!vcard->dynamic)
 390     memset(vcard, 0, sizeof(*vcard));
 391
 392   if (vcard->dynamic) {
 393     memset(vcard, 0, sizeof(*vcard));
 394     silc_free(vcard);
 395   }
 396 }
 397
 398 /* Print card to file stream */
 399
 400 void silc_vcard_fprintf(SilcVCard vcard, FILE *stream)
 401 {
 402   int i;
 403   fprintf(stream, "%s", VCARD_HEADER);
 404   fprintf(stream, "%s", VCARD_VERSION);
 405   if (vcard->full_name)
 406     fprintf(stream, "FN:%s\n", vcard->full_name);
 407   if (vcard->family_name)
 408     fprintf(stream, "N:%s;%s;%s;%s;%s\n",
 409             vcard->family_name,
 410             vcard->first_name ? vcard->first_name : "",
 411             vcard->middle_names ? vcard->middle_names : "",
 412             vcard->prefix ? vcard->prefix : "",
 413             vcard->suffix ? vcard->suffix : "");
 414   if (vcard->nickname)
 415     fprintf(stream, "NICKNAME:%s\n", vcard->nickname);
 416   if (vcard->bday)
 417     fprintf(stream, "BDAY:%s\n", vcard->bday);
 418   if (vcard->title)
 419     fprintf(stream, "TITLE:%s\n", vcard->title);
 420   if (vcard->role)
 421     fprintf(stream, "ROLE:%s\n", vcard->role);
 422   if (vcard->org_name)
 423     fprintf(stream, "ORG:%s;%s\n", vcard->org_name,
 424             vcard->org_unit ? vcard->org_unit : "");
 425   if (vcard->categories)
 426     fprintf(stream, "CATEGORIES:%s\n", vcard->categories);
 427   if (vcard->class)
 428     fprintf(stream, "CLASS:%s\n", vcard->class);
 429   if (vcard->url)
 430     fprintf(stream, "URL:%s\n", vcard->url);
 431   if (vcard->label)
 432     fprintf(stream, "LABEL;%s\n", vcard->label);
 433   for (i = 0; i < vcard->num_addrs; i++) {
 434     fprintf(stream, "ADR;TYPE=%s:%s;%s;%s;%s;%s;%s;%s\n",
 435             vcard->addrs[i].type,
 436             vcard->addrs[i].pbox ? vcard->addrs[i].pbox : "",
 437             vcard->addrs[i].ext_addr ? vcard->addrs[i].ext_addr : "",
 438             vcard->addrs[i].street_addr ? vcard->addrs[i].street_addr : "",
 439             vcard->addrs[i].city ? vcard->addrs[i].city : "",
 440             vcard->addrs[i].state ? vcard->addrs[i].state : "",
 441             vcard->addrs[i].code ? vcard->addrs[i].code : "",
 442             vcard->addrs[i].country ? vcard->addrs[i].country : "");
 443   }
 444   for (i = 0; i < vcard->num_tels; i++) {
 445     fprintf(stream, "TEL;TYPE=%s:%s\n",
 446             vcard->tels[i].type,
 447             vcard->tels[i].tel ? vcard->tels[i].tel : "");
 448   }
 449   for (i = 0; i < vcard->num_emails; i++) {
 450     fprintf(stream, "EMAIL;TYPE=%s:%s\n",
 451             vcard->emails[i].type,
 452             vcard->emails[i].address ? vcard->emails[i].address : "");
 453   }
 454   if (vcard->note)
 455     fprintf(stream, "NOTE:%s\n", vcard->note);
 456   if (vcard->rev)
 457     fprintf(stream, "REV:%s\n", vcard->rev);
 458   fprintf(stream, "%s", VCARD_FOOTER);
 459   fflush(stream);
 460 }