webcit/serv_func.c

   1 /*
   2  * $Id$
   3  */
   4
   5 #include "webcit.h"
   6 #include "webserver.h"
   7
   8 struct serv_info serv_info; /**< our connection data to the server */
   9 HashList *ServHash = NULL;//// TODO;
  10 /*
  11  * get info about the server we've connected to
  12  *
  13  * browser_host         the citadell we want to connect to
  14  * user_agent           which browser uses our client?
  15  */
  16 void get_serv_info(char *browser_host, char *user_agent)
  17 {
  18         char buf[SIZ];
  19         int a;
  20
  21         /** Tell the server what kind of client is connecting */
  22         serv_printf("IDEN %d|%d|%d|%s|%s",
  23                 DEVELOPER_ID,
  24                 CLIENT_ID,
  25                 CLIENT_VERSION,
  26                 user_agent,
  27                 browser_host
  28         );
  29         serv_getln(buf, sizeof buf);
  30
  31         /** Tell the server what kind of richtext we prefer */
  32         serv_puts("MSGP text/html|text/plain");
  33         serv_getln(buf, sizeof buf);
  34
  35         /*
  36          * Tell the server that when we save a calendar event, we
  37          * want invitations to be generated by the Citadel server
  38          * instead of by the client.
  39          */
  40         serv_puts("ICAL sgi|1");
  41         serv_getln(buf, sizeof buf);
  42
  43         /** Now ask the server to tell us a little bit about itself... */
  44         serv_puts("INFO");
  45         serv_getln(buf, sizeof buf);
  46         if (buf[0] != '1')
  47                 return;
  48
  49         a = 0;
  50         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
  51                 switch (a) {
  52                 case 0:
  53                         serv_info.serv_pid = atoi(buf);
  54                         WC->ctdl_pid = serv_info.serv_pid;
  55                         break;
  56                 case 1:
  57                         safestrncpy(serv_info.serv_nodename, buf, sizeof serv_info.serv_nodename);
  58                         break;
  59                 case 2:
  60                         safestrncpy(serv_info.serv_humannode, buf, sizeof serv_info.serv_humannode);
  61                         break;
  62                 case 3:
  63                         safestrncpy(serv_info.serv_fqdn, buf, sizeof serv_info.serv_fqdn);
  64                         break;
  65                 case 4:
  66                         safestrncpy(serv_info.serv_software, buf, sizeof serv_info.serv_software);
  67                         break;
  68                 case 5:
  69                         serv_info.serv_rev_level = atoi(buf);
  70                         break;
  71                 case 6:
  72                         safestrncpy(serv_info.serv_bbs_city, buf, sizeof serv_info.serv_bbs_city);
  73                         break;
  74                 case 7:
  75                         safestrncpy(serv_info.serv_sysadm, buf, sizeof serv_info.serv_sysadm);
  76                         break;
  77                 case 9:
  78                         safestrncpy(serv_info.serv_moreprompt, buf, sizeof serv_info.serv_moreprompt);
  79                         break;
  80                 case 14:
  81                         serv_info.serv_supports_ldap = atoi(buf);
  82                         break;
  83                 case 15:
  84                         serv_info.serv_newuser_disabled = atoi(buf);
  85                         break;
  86                 case 16:
  87                         safestrncpy(serv_info.serv_default_cal_zone, buf, sizeof serv_info.serv_default_cal_zone);
  88                         break;
  89                 case 20:
  90                         serv_info.serv_supports_sieve = atoi(buf);
  91                         break;
  92                 case 21:
  93                         serv_info.serv_fulltext_enabled = atoi(buf);
  94                         break;
  95                 case 22:
  96                         safestrncpy(serv_info.serv_svn_revision, buf, sizeof serv_info.serv_svn_revision);
  97                         break;
  98                 case 23:
  99                         serv_info.serv_supports_openid = atoi(buf);
 100                         break;
 101                 }
 102                 ++a;
 103         }
 104 }
 105
 106
 107
 108 /**
 109  * \brief Read Citadel variformat text and spit it out as HTML.
 110  * \param align html align string
 111  */
 112 void fmout(char *align)
 113 {
 114         int intext = 0;
 115         int bq = 0;
 116         char buf[SIZ];
 117
 118         wprintf("<div align=%s>\n", align);
 119         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 120
 121                 if ((intext == 1) && (isspace(buf[0]))) {
 122                         wprintf("<br />");
 123                 }
 124                 intext = 1;
 125
 126                 /**
 127                  * Quoted text should be displayed in italics and in a
 128                  * different colour.  This code understands Citadel-style
 129                  * " >" quotes and will convert to <BLOCKQUOTE> tags.
 130                  */
 131                 if ((bq == 0) && (!strncmp(buf, " >", 2))) {
 132                         wprintf("<BLOCKQUOTE>");
 133                         bq = 1;
 134                 } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
 135                         wprintf("</BLOCKQUOTE>");
 136                         bq = 0;
 137                 }
 138                 if ((bq == 1) && (!strncmp(buf, " >", 2))) {
 139                         strcpy(buf, &buf[2]);
 140                 }
 141                 /** Activate embedded URL's */
 142                 url(buf, sizeof(buf));
 143
 144                 escputs(buf);
 145                 wprintf("\n");
 146         }
 147         if (bq == 1) {
 148                 wprintf("</I>");
 149         }
 150         wprintf("</div><br />\n");
 151 }
 152
 153
 154
 155
 156 /**
 157  * \brief Read Citadel variformat text and spit it out as HTML in a form
 158  * suitable for embedding in another message (forward/quote).
 159  * (NO LINEBREAKS ALLOWED HERE!)
 160  */
 161 void pullquote_fmout(void) {
 162         int intext = 0;
 163         int bq = 0;
 164         char buf[SIZ];
 165
 166         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 167
 168                 if ((intext == 1) && (isspace(buf[0]))) {
 169                         wprintf("<br />");
 170                 }
 171                 intext = 1;
 172
 173                 /**
 174                  * Quoted text should be displayed in italics and in a
 175                  * different colour.  This code understands Citadel-style
 176                  * " >" quotes and will convert to <BLOCKQUOTE> tags.
 177                  */
 178                 if ((bq == 0) && (!strncmp(buf, " >", 2))) {
 179                         wprintf("<BLOCKQUOTE>");
 180                         bq = 1;
 181                 } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
 182                         wprintf("</BLOCKQUOTE>");
 183                         bq = 0;
 184                 }
 185                 if ((bq == 1) && (!strncmp(buf, " >", 2))) {
 186                         strcpy(buf, &buf[2]);
 187                 }
 188
 189                 msgescputs(buf);
 190         }
 191         if (bq == 1) {
 192                 wprintf("</I>");
 193         }
 194 }
 195
 196
 197
 198
 199 /**
 200  * \brief Transmit message text (in memory) to the server.
 201  *
 202  * \param ptr Pointer to the message being transmitted
 203  */
 204 void text_to_server(char *ptr)
 205 {
 206         char buf[256];
 207         int ch, a, pos, len;
 208
 209         pos = 0;
 210         buf[0] = 0;
 211
 212         while (ptr[pos] != 0) {
 213                 ch = ptr[pos++];
 214                 if (ch == 10) {
 215                         len = strlen(buf);
 216                         while ( (isspace(buf[len - 1]))
 217                                 && (buf[0] !=  '\0')
 218                                 && (buf[1] !=  '\0') )
 219                                 buf[--len] = 0;
 220                         serv_puts(buf);
 221                         buf[0] = 0;
 222                         if (ptr[pos] != 0) strcat(buf, " ");
 223                 } else {
 224                         a = strlen(buf);
 225                         buf[a + 1] = 0;
 226                         buf[a] = ch;
 227                         if ((ch == 32) && (strlen(buf) > 200)) {
 228                                 buf[a] = 0;
 229                                 serv_puts(buf);
 230                                 buf[0] = 0;
 231                         }
 232                         if (strlen(buf) > 250) {
 233                                 serv_puts(buf);
 234                                 buf[0] = 0;
 235                         }
 236                 }
 237         }
 238         serv_puts(buf);
 239 }
 240
 241
 242 /**
 243  * \brief Transmit message text (in memory) to the server,
 244  *        converting to Quoted-Printable encoding as we go.
 245  *
 246  * \param ptr Pointer to the message being transmitted
 247  */
 248 void text_to_server_qp(char *ptr)
 249 {
 250         unsigned char ch, buf[256];
 251         int pos;
 252         int output_len = 0;
 253
 254         pos = 0;
 255         buf[0] = 0;
 256         output_len = 0;
 257
 258         while (ptr[pos] != 0) {
 259                 ch = (unsigned char)(ptr[pos++]);
 260
 261                 if (ch == 13) {
 262                         /* ignore carriage returns */
 263                 }
 264                 else if (ch == 10) {
 265                         /* hard line break */
 266                         if (output_len > 0) {
 267                                 if (isspace(buf[output_len-1])) {
 268                                         sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 269                                         output_len += 2;
 270                                 }
 271                         }
 272                         buf[output_len++] = 0;
 273                         serv_puts((char *)buf);
 274                         output_len = 0;
 275                 }
 276                 else if (ch == 9) {
 277                         buf[output_len++] = ch;
 278                 }
 279                 else if ( (ch >= 32) && (ch <= 60) ) {
 280                         buf[output_len++] = ch;
 281                 }
 282                 else if ( (ch >= 62) && (ch <= 126) ) {
 283                         buf[output_len++] = ch;
 284                 }
 285                 else {
 286                         sprintf((char *)&buf[output_len], "=%02X", ch);
 287                         output_len += 3;
 288                 }
 289
 290                 if (output_len > 72) {
 291                         /* soft line break */
 292                         if (isspace(buf[output_len-1])) {
 293                                 sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 294                                 output_len += 2;
 295                         }
 296                         buf[output_len++] = '=';
 297                         buf[output_len++] = 0;
 298                         serv_puts((char *)buf);
 299                         output_len = 0;
 300                 }
 301         }
 302
 303         /* end of data - transmit anything that's left */
 304         if (output_len > 0) {
 305                 if (isspace(buf[output_len-1])) {
 306                         sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
 307                         output_len += 2;
 308                 }
 309                 buf[output_len++] = 0;
 310                 serv_puts((char *)buf);
 311                 output_len = 0;
 312         }
 313 }
 314
 315
 316
 317
 318 /**
 319  * \brief translate server message output to text
 320  * (used for editing room info files and such)
 321  */
 322 void server_to_text()
 323 {
 324         char buf[SIZ];
 325
 326         int count = 0;
 327
 328         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 329                 if ((buf[0] == 32) && (count > 0)) {
 330                         wprintf("\n");
 331                 }
 332                 wprintf("%s", buf);
 333                 ++count;
 334         }
 335 }
 336
 337
 338
 339 /**
 340  * Read binary data from server into memory using a series of
 341  * server READ commands.
 342  * \param buffer the output buffer
 343  * \param total_len the maximal length of buffer
 344  */
 345 void read_server_binary(char *buffer, size_t total_len) {
 346         char buf[SIZ];
 347         size_t bytes = 0;
 348         size_t thisblock = 0;
 349
 350         memset(buffer, 0, total_len);
 351         while (bytes < total_len) {
 352                 thisblock = 4095;
 353                 if ((total_len - bytes) < thisblock) {
 354                         thisblock = total_len - bytes;
 355                         if (thisblock == 0) return;
 356                 }
 357                 serv_printf("READ %d|%d", (int)bytes, (int)thisblock);
 358                 serv_getln(buf, sizeof buf);
 359                 if (buf[0] == '6') {
 360                         thisblock = (size_t)atoi(&buf[4]);
 361                         if (!WC->connected) return;
 362                         serv_read(&buffer[bytes], thisblock);
 363                         bytes += thisblock;
 364                 }
 365                 else {
 366                         lprintf(3, "Error: %s\n", &buf[4]);
 367                         return;
 368                 }
 369         }
 370 }
 371
 372
 373 /**
 374  * \brief Read text from server, appending to a string buffer until the
 375  * usual 000 terminator is found.  Caller is responsible for freeing
 376  * the returned pointer.
 377  */
 378 char *read_server_text(void) {
 379         char *text = NULL;
 380         size_t bytes_allocated = 0;
 381         size_t bytes_read = 0;
 382         int linelen;
 383         char buf[SIZ];
 384
 385         text = malloc(SIZ);
 386         if (text == NULL) {
 387                 return(NULL);
 388         }
 389         text[0] = 0;
 390         bytes_allocated = SIZ;
 391
 392         while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
 393                 linelen = strlen(buf);
 394                 buf[linelen] = '\n';
 395                 buf[linelen+1] = 0;
 396                 ++linelen;
 397
 398                 if ((bytes_read + linelen) >= (bytes_allocated - 2)) {
 399                         bytes_allocated = 2 * bytes_allocated;
 400                         text = realloc(text, bytes_allocated);
 401                 }
 402
 403                 strcpy(&text[bytes_read], buf);
 404                 bytes_read += linelen;
 405         }
 406
 407         return(text);
 408 }
 409
 410
 411
 412 /*@}*/