Added lib/silcvcard/
[silc.git] / lib / silcvcard / silcvcard.c
diff --git a/lib/silcvcard/silcvcard.c b/lib/silcvcard/silcvcard.c
new file mode 100644 (file)
index 0000000..dad057e
--- /dev/null
@@ -0,0 +1,463 @@
+/*
+
+  silcvcard.c
+
+  Author: Pekka Riikonen <priikone@silcnet.org>
+
+  Copyright (C) 2002 - 2005 Pekka Riikonen
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; version 2 of the License.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+*/
+/* $Id$ */
+/* Implementation of the VCard (RFC 2426) */
+
+#include "silc.h"
+
+#define VCARD_HEADER "BEGIN:VCARD\n"
+#define VCARD_VERSION "VERSION:3.0\n"
+#define VCARD_FOOTER "END:VCARD\n"
+
+/* Encode VCard */
+
+unsigned char *silc_vcard_encode(SilcVCard vcard, SilcUInt32 *vcard_len)
+{
+  SilcBufferStruct buffer;
+  int i;
+
+  if (!vcard->full_name || !vcard->family_name || !vcard->first_name)
+    return NULL;
+
+  memset(&buffer, 0, sizeof(buffer));
+  silc_buffer_strformat(
+       &buffer,
+       VCARD_HEADER,
+       VCARD_VERSION,
+       "FN:", vcard->full_name, "\n",
+       "N:", vcard->family_name, ";", vcard->first_name, ";",
+       vcard->middle_names, ";", vcard->prefix, ";", vcard->suffix, "\n",
+       SILC_STRFMT_END);
+
+  if (vcard->nickname)
+    silc_buffer_strformat(&buffer,
+                         "NICKNAME:", vcard->nickname, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->bday)
+    silc_buffer_strformat(&buffer,
+                         "BDAY:", vcard->bday, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->title)
+    silc_buffer_strformat(&buffer,
+                         "TITLE:", vcard->title, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->role)
+    silc_buffer_strformat(&buffer,
+                         "ROLE:", vcard->role, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->org_name)
+    silc_buffer_strformat(&buffer,
+                         "ORG:", vcard->org_name, ";", vcard->org_unit, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->categories)
+    silc_buffer_strformat(&buffer,
+                         "CATEGORIES:", vcard->categories, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->catclass)
+    silc_buffer_strformat(&buffer,
+                         "CLASS:", vcard->catclass, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->url)
+    silc_buffer_strformat(&buffer,
+                         "URL:", vcard->url, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->label)
+    silc_buffer_strformat(&buffer,
+                         "LABEL;", vcard->url, "\n",
+                         SILC_STRFMT_END);
+  for (i = 0; i < vcard->num_addrs; i++) {
+    silc_buffer_strformat(&buffer,
+                         "ADR;TYPE=",
+                         vcard->addrs[i].type, ":",
+                         vcard->addrs[i].pbox, ";",
+                         vcard->addrs[i].ext_addr, ";",
+                         vcard->addrs[i].street_addr, ";",
+                         vcard->addrs[i].city, ";",
+                         vcard->addrs[i].state, ";",
+                         vcard->addrs[i].code, ";",
+                         vcard->addrs[i].country, "\n",
+                         SILC_STRFMT_END);
+  }
+  for (i = 0; i < vcard->num_tels; i++) {
+    silc_buffer_strformat(&buffer,
+                         "TEL;TYPE=",
+                         vcard->tels[i].type, ":",
+                         vcard->tels[i].telnum, "\n",
+                         SILC_STRFMT_END);
+  }
+  for (i = 0; i < vcard->num_emails; i++) {
+    silc_buffer_strformat(&buffer,
+                         "EMAIL;TYPE=",
+                         vcard->emails[i].type, ":",
+                         vcard->emails[i].address, "\n",
+                         SILC_STRFMT_END);
+  }
+  if (vcard->note)
+    silc_buffer_strformat(&buffer,
+                         "NOTE:", vcard->note, "\n",
+                         SILC_STRFMT_END);
+  if (vcard->rev)
+    silc_buffer_strformat(&buffer,
+                         "REV:", vcard->rev, "\n",
+                         SILC_STRFMT_END);
+
+  silc_buffer_strformat(&buffer, VCARD_FOOTER, SILC_STRFMT_END);
+
+  if (vcard_len)
+    *vcard_len = silc_buffer_truelen(&buffer);
+
+  return buffer.head;
+}
+
+/* Take one token */
+#define VCARD_TOKEN(x)                         \
+  if (!(x)) {                                  \
+    (x) = silc_memdup(val + off, i - off);     \
+    off = i + 1;                               \
+    continue;                                  \
+  }
+
+/* Take on TYPE= token and prepare for next token, accept the
+   type also without TYPE= as it is possible */
+#define VCARD_TYPETOKEN(x)                                     \
+  if (!(x)) {                                                  \
+    int tmpi = 0;                                              \
+    if (!strncasecmp(val + off, "TYPE=", 5))                   \
+      tmpi = 5;                                                        \
+    (x) = silc_memdup(val + off + tmpi, i - off - tmpi - 1);   \
+    tmpi = off + tmpi + strlen((x)) + 1;                       \
+    off = i;                                                   \
+    i = tmpi;                                                  \
+  }
+
+/* Take last token */
+#define VCARD_LASTTOKEN(x)                     \
+  if (!(x)) {                                  \
+    if (off < len)                             \
+      (x) = silc_memdup(val + off, len - off); \
+  }                                            \
+
+/* Get one (single) field */
+#define VCARD_FIELD(val, c, x)                         \
+do {                                                   \
+  if (!strncasecmp(val, (c), strlen((c)))) {           \
+    int tmpl = strlen((c));                            \
+    if ((x))                                           \
+      break;                                           \
+    if (len - tmpl > 0)                                        \
+      (x) = silc_memdup(val + tmpl, len - tmpl);       \
+    goto next;                                         \
+  }                                                    \
+} while(0)
+
+/* Decode VCard */
+
+SilcBool silc_vcard_decode(const unsigned char *data, SilcUInt32 data_len,
+                      SilcVCard vcard)
+{
+  unsigned char *val;
+  SilcBool has_begin = FALSE, has_end = FALSE;
+  int len, i, off = 0;
+
+  val = (unsigned char *)data;
+  while (val) {
+    len = 0;
+    for (i = (val - data); i < data_len; i++) {
+      if (data[i] == '\0' || data[i] == '\n') {
+       len = i - (val - data);
+       break;
+      }
+    }
+    if (!len || len > data_len - (val - data))
+      break;
+
+    /* Check for mandatory header and footer */
+    if (!strncasecmp(val, VCARD_HEADER, strlen(VCARD_HEADER))) {
+      has_begin = TRUE;
+      goto next;
+    }
+    if (!strncasecmp(val, VCARD_FOOTER, strlen(VCARD_FOOTER))) {
+      has_end = TRUE;
+      goto next;
+    }
+
+    /* Get single fields */
+    VCARD_FIELD(val, "FN:", vcard->full_name);
+    VCARD_FIELD(val, "NICKNAME:", vcard->nickname);
+    VCARD_FIELD(val, "BDAY:", vcard->bday);
+    VCARD_FIELD(val, "TITLE:", vcard->title);
+    VCARD_FIELD(val, "ROLE:", vcard->role);
+    VCARD_FIELD(val, "CATEGORIES:", vcard->categories);
+    VCARD_FIELD(val, "CLASS:", vcard->catclass);
+    VCARD_FIELD(val, "URL:", vcard->url);
+    VCARD_FIELD(val, "LABEL;", vcard->label);
+    VCARD_FIELD(val, "NOTE:", vcard->note);
+    VCARD_FIELD(val, "REV:", vcard->rev);
+
+    /* Get multi-column fields */
+
+    if (!strncasecmp(val, "N:", 2)) {
+      if (vcard->family_name)
+       break;
+      if (len - 2) {
+       off = 2;
+       for (i = off; i < len; i++)
+         if (val[i] == ';') {
+           VCARD_TOKEN(vcard->family_name);
+           VCARD_TOKEN(vcard->first_name);
+           VCARD_TOKEN(vcard->middle_names);
+           VCARD_TOKEN(vcard->prefix);
+         }
+       if (!vcard->family_name && !vcard->first_name) {
+         VCARD_LASTTOKEN(vcard->family_name);
+         off += (len - off);
+       }
+       if (!vcard->first_name) {
+         VCARD_LASTTOKEN(vcard->first_name);
+       } else {
+         VCARD_LASTTOKEN(vcard->suffix);
+       }
+      }
+      goto next;
+    }
+
+    if (!strncasecmp(val, "ORG:", 4)) {
+      if (vcard->org_name)
+       continue;
+      if (len - 4) {
+       off = 4;
+       for (i = off; i < len; i++) {
+         if (val[i] == ';') {
+           VCARD_TOKEN(vcard->org_name);
+           break;
+         }
+       }
+       /* It's possible to have ORG without last ';', so check for it */
+       if (!vcard->org_name) {
+         VCARD_LASTTOKEN(vcard->org_name);
+       } else {
+         VCARD_LASTTOKEN(vcard->org_unit);
+       }
+      }
+      goto next;
+    }
+
+    if (!strncasecmp(val, "ADR;", 4)) {
+      vcard->addrs = silc_realloc(vcard->addrs, sizeof(*vcard->addrs) *
+                                 (vcard->num_addrs + 1));
+      memset(&vcard->addrs[vcard->num_addrs], 0, sizeof(*vcard->addrs));
+      if (len - 4) {
+       off = 4;
+       for (i = off; i < len; i++)
+         if (val[i] == ';') {
+           VCARD_TYPETOKEN(vcard->addrs[vcard->num_addrs].type);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].pbox);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].ext_addr);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].street_addr);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].city);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].state);
+           VCARD_TOKEN(vcard->addrs[vcard->num_addrs].code);
+         }
+       VCARD_LASTTOKEN(vcard->addrs[vcard->num_addrs].country);
+      }
+      vcard->num_addrs++;
+      goto next;
+    }
+
+    if (!strncasecmp(val, "TEL;", 4)) {
+      vcard->tels = silc_realloc(vcard->tels, sizeof(*vcard->tels) *
+                                (vcard->num_tels + 1));
+      memset(&vcard->tels[vcard->num_tels], 0, sizeof(*vcard->tels));
+      if (len - 4) {
+       off = 4;
+       for (i = off; i < len; i++)
+         if (val[i] == ':') {
+           i++;
+           VCARD_TYPETOKEN(vcard->tels[vcard->num_tels].type);
+           break;
+         }
+       VCARD_LASTTOKEN(vcard->tels[vcard->num_tels].telnum);
+      }
+      vcard->num_tels++;
+      goto next;
+    }
+
+    if (!strncasecmp(val, "EMAIL;", 6)) {
+      vcard->emails = silc_realloc(vcard->emails, sizeof(*vcard->emails) *
+                                  (vcard->num_emails + 1));
+      memset(&vcard->emails[vcard->num_emails], 0, sizeof(*vcard->emails));
+      if (len - 6) {
+       off = 6;
+       for (i = off; i < len; i++)
+         if (val[i] == ':') {
+           i++;
+           VCARD_TYPETOKEN(vcard->emails[vcard->num_emails].type);
+           break;
+         }
+       VCARD_LASTTOKEN(vcard->emails[vcard->num_emails].address);
+      }
+      vcard->num_emails++;
+      goto next;
+    }
+
+  next:
+    val = strchr(val, '\n');
+    if (!val)
+      break;
+    val++;
+    if (!val || !(*val))
+      break;
+  }
+
+  if (!has_begin || !has_end || !vcard->full_name) {
+    silc_vcard_free(vcard);
+    return FALSE;
+  }
+
+  return TRUE;
+}
+
+/* Allocate vcard context */
+
+SilcVCard silc_vcard_alloc(void)
+{
+  SilcVCard vcard = silc_calloc(1, sizeof(*vcard));
+  if (!vcard)
+    return NULL;
+  vcard->dynamic = TRUE;
+  return vcard;
+}
+
+/* Free the vcard structure */
+
+void silc_vcard_free(SilcVCard vcard)
+{
+  int i;
+
+  silc_free(vcard->full_name);
+  silc_free(vcard->family_name);
+  silc_free(vcard->first_name);
+  silc_free(vcard->middle_names);
+  silc_free(vcard->prefix);
+  silc_free(vcard->suffix);
+  silc_free(vcard->nickname);
+  silc_free(vcard->bday);
+  silc_free(vcard->title);
+  silc_free(vcard->role);
+  silc_free(vcard->org_name);
+  silc_free(vcard->org_unit);
+  silc_free(vcard->categories);
+  silc_free(vcard->catclass);
+  silc_free(vcard->url);
+  silc_free(vcard->label);
+  for (i = 0; i < vcard->num_addrs; i++) {
+    silc_free(vcard->addrs[i].type);
+    silc_free(vcard->addrs[i].pbox);
+    silc_free(vcard->addrs[i].ext_addr);
+    silc_free(vcard->addrs[i].street_addr);
+    silc_free(vcard->addrs[i].city);
+    silc_free(vcard->addrs[i].state);
+    silc_free(vcard->addrs[i].code);
+    silc_free(vcard->addrs[i].country);
+  }
+  silc_free(vcard->addrs);
+  for (i = 0; i < vcard->num_tels; i++) {
+    silc_free(vcard->tels[i].type);
+    silc_free(vcard->tels[i].telnum);
+  }
+  silc_free(vcard->tels);
+  for (i = 0; i < vcard->num_emails; i++) {
+    silc_free(vcard->emails[i].type);
+    silc_free(vcard->emails[i].address);
+  }
+  silc_free(vcard->emails);
+  silc_free(vcard->note);
+  silc_free(vcard->rev);
+  if (!vcard->dynamic)
+    memset(vcard, 0, sizeof(*vcard));
+
+  if (vcard->dynamic) {
+    memset(vcard, 0, sizeof(*vcard));
+    silc_free(vcard);
+  }
+}
+
+/* Print card to file stream */
+
+void silc_vcard_fprintf(SilcVCard vcard, FILE *stream)
+{
+  int i;
+  fprintf(stream, "%s", VCARD_HEADER);
+  fprintf(stream, "%s", VCARD_VERSION);
+  if (vcard->full_name)
+    fprintf(stream, "FN:%s\n", vcard->full_name);
+  if (vcard->family_name)
+    fprintf(stream, "N:%s;%s;%s;%s;%s\n",
+           vcard->family_name,
+           vcard->first_name ? vcard->first_name : "",
+           vcard->middle_names ? vcard->middle_names : "",
+           vcard->prefix ? vcard->prefix : "",
+           vcard->suffix ? vcard->suffix : "");
+  if (vcard->nickname)
+    fprintf(stream, "NICKNAME:%s\n", vcard->nickname);
+  if (vcard->bday)
+    fprintf(stream, "BDAY:%s\n", vcard->bday);
+  if (vcard->title)
+    fprintf(stream, "TITLE:%s\n", vcard->title);
+  if (vcard->role)
+    fprintf(stream, "ROLE:%s\n", vcard->role);
+  if (vcard->org_name)
+    fprintf(stream, "ORG:%s;%s\n", vcard->org_name,
+           vcard->org_unit ? vcard->org_unit : "");
+  if (vcard->categories)
+    fprintf(stream, "CATEGORIES:%s\n", vcard->categories);
+  if (vcard->catclass)
+    fprintf(stream, "CLASS:%s\n", vcard->catclass);
+  if (vcard->url)
+    fprintf(stream, "URL:%s\n", vcard->url);
+  if (vcard->label)
+    fprintf(stream, "LABEL;%s\n", vcard->label);
+  for (i = 0; i < vcard->num_addrs; i++) {
+    fprintf(stream, "ADR;TYPE=%s:%s;%s;%s;%s;%s;%s;%s\n",
+           vcard->addrs[i].type,
+           vcard->addrs[i].pbox ? vcard->addrs[i].pbox : "",
+           vcard->addrs[i].ext_addr ? vcard->addrs[i].ext_addr : "",
+           vcard->addrs[i].street_addr ? vcard->addrs[i].street_addr : "",
+           vcard->addrs[i].city ? vcard->addrs[i].city : "",
+           vcard->addrs[i].state ? vcard->addrs[i].state : "",
+           vcard->addrs[i].code ? vcard->addrs[i].code : "",
+           vcard->addrs[i].country ? vcard->addrs[i].country : "");
+  }
+  for (i = 0; i < vcard->num_tels; i++) {
+    fprintf(stream, "TEL;TYPE=%s:%s\n",
+           vcard->tels[i].type,
+           vcard->tels[i].telnum ? vcard->tels[i].telnum : "");
+  }
+  for (i = 0; i < vcard->num_emails; i++) {
+    fprintf(stream, "EMAIL;TYPE=%s:%s\n",
+           vcard->emails[i].type,
+           vcard->emails[i].address ? vcard->emails[i].address : "");
+  }
+  if (vcard->note)
+    fprintf(stream, "NOTE:%s\n", vcard->note);
+  if (vcard->rev)
+    fprintf(stream, "REV:%s\n", vcard->rev);
+  fprintf(stream, "%s", VCARD_FOOTER);
+  fflush(stream);
+}