citadel/imap_store.c

   1 /*
   2  * $Id$
   3  *
   4  * Implements the STORE command in IMAP.
   5  *
   6  */
   7
   8
   9 #include "sysdep.h"
  10 #include <stdlib.h>
  11 #include <unistd.h>
  12 #include <stdio.h>
  13 #include <fcntl.h>
  14 #include <signal.h>
  15 #include <pwd.h>
  16 #include <errno.h>
  17 #include <sys/types.h>
  18
  19 #if TIME_WITH_SYS_TIME
  20 # include <sys/time.h>
  21 # include <time.h>
  22 #else
  23 # if HAVE_SYS_TIME_H
  24 #  include <sys/time.h>
  25 # else
  26 #  include <time.h>
  27 # endif
  28 #endif
  29
  30 #include <sys/wait.h>
  31 #include <ctype.h>
  32 #include <string.h>
  33 #include <limits.h>
  34 #include "citadel.h"
  35 #include "server.h"
  36 #include "sysdep_decls.h"
  37 #include "citserver.h"
  38 #include "support.h"
  39 #include "config.h"
  40 #include "serv_extensions.h"
  41 #include "room_ops.h"
  42 #include "user_ops.h"
  43 #include "policy.h"
  44 #include "database.h"
  45 #include "msgbase.h"
  46 #include "tools.h"
  47 #include "internet_addressing.h"
  48 #include "serv_imap.h"
  49 #include "imap_tools.h"
  50 #include "imap_fetch.h"
  51 #include "imap_store.h"
  52 #include "genstamp.h"
  53
  54
  55
  56
  57
  58
  59 /*
  60  * imap_do_store() calls imap_do_store_msg() to tweak the settings of
  61  * an individual message.
  62  *
  63  * We also implement the ".SILENT" protocol option here.  :(
  64  */
  65 void imap_do_store_msg(int seq, char *oper, unsigned int bits_to_twiddle) {
  66         int silent = 0;
  67
  68         if (!strncasecmp(oper, "FLAGS", 5)) {
  69                 IMAP->flags[seq] &= IMAP_MASK_SYSTEM;
  70                 IMAP->flags[seq] |= bits_to_twiddle;
  71                 silent = strncasecmp(&oper[5], ".SILENT", 7);
  72         }
  73         else if (!strncasecmp(oper, "+FLAGS", 6)) {
  74                 IMAP->flags[seq] |= bits_to_twiddle;
  75                 silent = strncasecmp(&oper[6], ".SILENT", 7);
  76         }
  77         else if (!strncasecmp(oper, "-FLAGS", 6)) {
  78                 IMAP->flags[seq] &= (~bits_to_twiddle);
  79                 silent = strncasecmp(&oper[6], ".SILENT", 7);
  80         }
  81
  82         if (bits_to_twiddle & IMAP_SEEN) {
  83                 CtdlSetSeen(IMAP->msgids[seq],
  84                                 ((IMAP->flags[seq] & IMAP_SEEN) ? 1 : 0),
  85                                 ctdlsetseen_seen
  86                 );
  87         }
  88         if (bits_to_twiddle & IMAP_ANSWERED) {
  89                 CtdlSetSeen(IMAP->msgids[seq],
  90                                 ((IMAP->flags[seq] & IMAP_ANSWERED) ? 1 : 0),
  91                                 ctdlsetseen_answered
  92                 );
  93         }
  94
  95         /* 'silent' is actually the value returned from a strncasecmp() so
  96          * we want that option only if its value is zero.  Seems backwards
  97          * but that's the way it's supposed to be.
  98          */
  99         if (silent) {
 100                 cprintf("* %d FETCH (", seq+1);
 101                 imap_fetch_flags(seq);
 102                 cprintf(")\r\n");
 103         }
 104 }
 105
 106
 107
 108 /*
 109  * imap_store() calls imap_do_store() to perform the actual bit twiddling
 110  * on the flags.
 111  */
 112 void imap_do_store(int num_items, char **itemlist) {
 113         int i, j;
 114         unsigned int bits_to_twiddle = 0;
 115         char *oper;
 116         char flag[32];
 117         char whichflags[256];
 118         char num_flags;
 119
 120         if (num_items < 2) return;
 121         oper = itemlist[0];
 122
 123         for (i=1; i<num_items; ++i) {
 124                 strcpy(whichflags, itemlist[i]);
 125                 if (whichflags[0]=='(') safestrncpy(whichflags, &whichflags[1], sizeof whichflags);
 126                 if (whichflags[strlen(whichflags)-1]==')') {
 127                         whichflags[strlen(whichflags)-1]=0;
 128                 }
 129                 striplt(whichflags);
 130
 131                 /* A client might twiddle more than one bit at a time.
 132                  * Note that we check for the flag names without the leading
 133                  * backslash because imap_parameterize() strips them out.
 134                  */
 135                 num_flags = num_tokens(whichflags, ' ');
 136                 for (j=0; j<num_flags; ++j) {
 137                         extract_token(flag, whichflags, j, ' ', sizeof flag);
 138
 139                         if ((!strcasecmp(flag, "\\Deleted"))
 140                            || (!strcasecmp(flag, "Deleted"))) {
 141                                 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom()) {
 142                                         bits_to_twiddle |= IMAP_DELETED;
 143                                 }
 144                         }
 145                         if ((!strcasecmp(flag, "\\Seen"))
 146                            || (!strcasecmp(flag, "Seen"))) {
 147                                 bits_to_twiddle |= IMAP_SEEN;
 148                         }
 149                         if ((!strcasecmp(flag, "\\Answered"))
 150                            || (!strcasecmp(flag, "\\Answered"))) {
 151                                 bits_to_twiddle |= IMAP_ANSWERED;
 152                         }
 153                 }
 154         }
 155
 156         if (IMAP->num_msgs > 0) {
 157                 for (i = 0; i < IMAP->num_msgs; ++i) {
 158                         if (IMAP->flags[i] & IMAP_SELECTED) {
 159                                 imap_do_store_msg(i, oper, bits_to_twiddle);
 160                         }
 161                 }
 162         }
 163 }
 164
 165
 166 /*
 167  * This function is called by the main command loop.
 168  */
 169 void imap_store(int num_parms, char *parms[]) {
 170         char items[1024];
 171         char *itemlist[256];
 172         int num_items;
 173         int i;
 174
 175         if (num_parms < 3) {
 176                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 177                 return;
 178         }
 179
 180         if (imap_is_message_set(parms[2])) {
 181                 imap_pick_range(parms[2], 0);
 182         }
 183         else {
 184                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 185                 return;
 186         }
 187
 188         strcpy(items, "");
 189         for (i=3; i<num_parms; ++i) {
 190                 strcat(items, parms[i]);
 191                 if (i < (num_parms-1)) strcat(items, " ");
 192         }
 193
 194         num_items = imap_extract_data_items(itemlist, items);
 195         if (num_items < 1) {
 196                 cprintf("%s BAD invalid data item list\r\n", parms[0]);
 197                 return;
 198         }
 199
 200         imap_do_store(num_items, itemlist);
 201         cprintf("%s OK STORE completed\r\n", parms[0]);
 202 }
 203
 204 /*
 205  * This function is called by the main command loop.
 206  */
 207 void imap_uidstore(int num_parms, char *parms[]) {
 208         char items[1024];
 209         char *itemlist[256];
 210         int num_items;
 211         int i;
 212
 213         if (num_parms < 4) {
 214                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 215                 return;
 216         }
 217
 218         if (imap_is_message_set(parms[3])) {
 219                 imap_pick_range(parms[3], 1);
 220         }
 221         else {
 222                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 223                 return;
 224         }
 225
 226         strcpy(items, "");
 227         for (i=4; i<num_parms; ++i) {
 228                 lprintf(9, "item %d: %s\n", i, parms[i]);
 229                 strcat(items, parms[i]);
 230                 if (i < (num_parms-1)) strcat(items, " ");
 231         }
 232
 233         num_items = imap_extract_data_items(itemlist, items);
 234         if (num_items < 1) {
 235                 cprintf("%s BAD invalid data item list\r\n", parms[0]);
 236                 return;
 237         }
 238
 239         imap_do_store(num_items, itemlist);
 240         cprintf("%s OK UID STORE completed\r\n", parms[0]);
 241 }
 242
 243