webcit/preferences.c

   1 /*
   2  * preferences.c
   3  *
   4  * Manage user preferences with a little help from the Citadel server.
   5  *
   6  * $Id$
   7  */
   8
   9 #include <ctype.h>
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <signal.h>
  15 #include <sys/types.h>
  16 #include <sys/wait.h>
  17 #include <sys/socket.h>
  18 #include <sys/time.h>
  19 #include <limits.h>
  20 #include <netinet/in.h>
  21 #include <netdb.h>
  22 #include <string.h>
  23 #include <pwd.h>
  24 #include <errno.h>
  25 #include <stdarg.h>
  26 #include <pthread.h>
  27 #include <signal.h>
  28 #include "webcit.h"
  29 #include "webserver.h"
  30
  31
  32
  33 void load_preferences(void) {
  34         char buf[SIZ];
  35         long msgnum = 0L;
  36
  37         serv_printf("GOTO %s", USERCONFIGROOM);
  38         serv_gets(buf);
  39         if (buf[0] != '2') return;
  40
  41         serv_puts("MSGS ALL|0|1");
  42         serv_gets(buf);
  43         if (buf[0] == '8') {
  44                 serv_puts("subj|__ WebCit Preferences __");
  45                 serv_puts("000");
  46         }
  47         while (serv_gets(buf), strcmp(buf, "000")) {
  48                 msgnum = atol(buf);
  49         }
  50
  51         if (msgnum > 0L) {
  52                 serv_printf("MSG0 %ld", msgnum);
  53                 serv_gets(buf);
  54                 if (buf[0] == '1') {
  55                         while (serv_gets(buf),
  56                                 (strcmp(buf, "text") && strcmp(buf, "000"))) {
  57                         }
  58                         if (!strcmp(buf, "text")) {
  59                                 while (serv_gets(buf), strcmp(buf, "000")) {
  60                                         if (WC->preferences == NULL) {
  61                                                 WC->preferences = malloc(SIZ);
  62                                                 strcpy(WC->preferences, "");
  63                                         }
  64                                         else {
  65                                                 WC->preferences = realloc(
  66                                                         WC->preferences,
  67                                                         strlen(WC->preferences)
  68                                                         +SIZ
  69                                                 );
  70                                         }
  71                                         strcat(WC->preferences, buf);
  72                                         strcat(WC->preferences, "\n");
  73                                 }
  74                         }
  75                 }
  76         }
  77
  78         /* Go back to the room we're supposed to be in */
  79         serv_printf("GOTO %s", WC->wc_roomname);
  80         serv_gets(buf);
  81 }
  82
  83 /*
  84  * Goto the user's configuration room, creating it if necessary.
  85  * Returns 0 on success or nonzero upon failure.
  86  */
  87 int goto_config_room(void) {
  88         char buf[SIZ];
  89
  90         serv_printf("GOTO %s", USERCONFIGROOM);
  91         serv_gets(buf);
  92         if (buf[0] != '2') { /* try to create the config room if not there */
  93                 serv_printf("CRE8 1|%s|4|0", USERCONFIGROOM);
  94                 serv_gets(buf);
  95                 serv_printf("GOTO %s", USERCONFIGROOM);
  96                 serv_gets(buf);
  97                 if (buf[0] != '2') return(1);
  98         }
  99         return(0);
 100 }
 101
 102
 103 void save_preferences(void) {
 104         char buf[SIZ];
 105         long msgnum = 0L;
 106
 107         if (goto_config_room() != 0) return;    /* oh well. */
 108         serv_puts("MSGS ALL|0|1");
 109         serv_gets(buf);
 110         if (buf[0] == '8') {
 111                 serv_puts("subj|__ WebCit Preferences __");
 112                 serv_puts("000");
 113         }
 114         while (serv_gets(buf), strcmp(buf, "000")) {
 115                 msgnum = atol(buf);
 116         }
 117
 118         if (msgnum > 0L) {
 119                 serv_printf("DELE %ld", msgnum);
 120                 serv_gets(buf);
 121         }
 122
 123         serv_printf("ENT0 1||0|1|__ WebCit Preferences __|");
 124         serv_gets(buf);
 125         if (buf[0] == '4') {
 126                 serv_puts(WC->preferences);
 127                 serv_puts("");
 128                 serv_puts("000");
 129         }
 130
 131         /* Go back to the room we're supposed to be in */
 132         serv_printf("GOTO %s", WC->wc_roomname);
 133         serv_gets(buf);
 134 }
 135
 136 void get_preference(char *key, char *value) {
 137         int num_prefs;
 138         int i;
 139         char buf[SIZ];
 140         char thiskey[SIZ];
 141
 142         strcpy(value, "");
 143
 144         num_prefs = num_tokens(WC->preferences, '\n');
 145         for (i=0; i<num_prefs; ++i) {
 146                 extract_token(buf, WC->preferences, i, '\n');
 147                 extract_token(thiskey, buf, 0, '|');
 148                 if (!strcasecmp(thiskey, key)) {
 149                         extract_token(value, buf, 1, '|');
 150                 }
 151         }
 152 }
 153
 154 void set_preference(char *key, char *value) {
 155         int num_prefs;
 156         int i;
 157         char buf[SIZ];
 158         char thiskey[SIZ];
 159         char *newprefs = NULL;
 160
 161         num_prefs = num_tokens(WC->preferences, '\n');
 162         for (i=0; i<num_prefs; ++i) {
 163                 extract_token(buf, WC->preferences, i, '\n');
 164                 if (num_tokens(buf, '|') == 2) {
 165                         extract_token(thiskey, buf, 0, '|');
 166                         if (strcasecmp(thiskey, key)) {
 167                                 if (newprefs == NULL) newprefs = strdup("");
 168                                 newprefs = realloc(newprefs,
 169                                         strlen(newprefs) + SIZ );
 170                                 strcat(newprefs, buf);
 171                                 strcat(newprefs, "\n");
 172                         }
 173                 }
 174         }
 175
 176
 177         if (newprefs == NULL) newprefs = strdup("");
 178         newprefs = realloc(newprefs, strlen(newprefs) + SIZ);
 179         sprintf(&newprefs[strlen(newprefs)], "%s|%s\n", key, value);
 180
 181         free(WC->preferences);
 182         WC->preferences = newprefs;
 183
 184         save_preferences();
 185 }