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                         NULL, NULL
  87                 );
  88         }
  89         if (bits_to_twiddle & IMAP_ANSWERED) {
  90                 CtdlSetSeen(IMAP->msgids[seq],
  91                         ((IMAP->flags[seq] & IMAP_ANSWERED) ? 1 : 0),
  92                         ctdlsetseen_answered,
  93                         NULL, NULL
  94                 );
  95         }
  96
  97         /* 'silent' is actually the value returned from a strncasecmp() so
  98          * we want that option only if its value is zero.  Seems backwards
  99          * but that's the way it's supposed to be.
 100          */
 101         if (silent) {
 102                 cprintf("* %d FETCH (", seq+1);
 103                 imap_fetch_flags(seq);
 104                 cprintf(")\r\n");
 105         }
 106 }
 107
 108
 109
 110 /*
 111  * imap_store() calls imap_do_store() to perform the actual bit twiddling
 112  * on the flags.
 113  */
 114 void imap_do_store(int num_items, char **itemlist) {
 115         int i, j;
 116         unsigned int bits_to_twiddle = 0;
 117         char *oper;
 118         char flag[32];
 119         char whichflags[256];
 120         char num_flags;
 121
 122         if (num_items < 2) return;
 123         oper = itemlist[0];
 124
 125         for (i=1; i<num_items; ++i) {
 126                 strcpy(whichflags, itemlist[i]);
 127                 if (whichflags[0]=='(') safestrncpy(whichflags, &whichflags[1], sizeof whichflags);
 128                 if (whichflags[strlen(whichflags)-1]==')') {
 129                         whichflags[strlen(whichflags)-1]=0;
 130                 }
 131                 striplt(whichflags);
 132
 133                 /* A client might twiddle more than one bit at a time.
 134                  * Note that we check for the flag names without the leading
 135                  * backslash because imap_parameterize() strips them out.
 136                  */
 137                 num_flags = num_tokens(whichflags, ' ');
 138                 for (j=0; j<num_flags; ++j) {
 139                         extract_token(flag, whichflags, j, ' ', sizeof flag);
 140
 141                         if ((!strcasecmp(flag, "\\Deleted"))
 142                            || (!strcasecmp(flag, "Deleted"))) {
 143                                 if (CtdlDoIHavePermissionToDeleteMessagesFromThisRoom()) {
 144                                         bits_to_twiddle |= IMAP_DELETED;
 145                                 }
 146                         }
 147                         if ((!strcasecmp(flag, "\\Seen"))
 148                            || (!strcasecmp(flag, "Seen"))) {
 149                                 bits_to_twiddle |= IMAP_SEEN;
 150                         }
 151                         if ((!strcasecmp(flag, "\\Answered"))
 152                            || (!strcasecmp(flag, "\\Answered"))) {
 153                                 bits_to_twiddle |= IMAP_ANSWERED;
 154                         }
 155                 }
 156         }
 157
 158         if (IMAP->num_msgs > 0) {
 159                 for (i = 0; i < IMAP->num_msgs; ++i) {
 160                         if (IMAP->flags[i] & IMAP_SELECTED) {
 161                                 imap_do_store_msg(i, oper, bits_to_twiddle);
 162                         }
 163                 }
 164         }
 165 }
 166
 167
 168 /*
 169  * This function is called by the main command loop.
 170  */
 171 void imap_store(int num_parms, char *parms[]) {
 172         char items[1024];
 173         char *itemlist[256];
 174         int num_items;
 175         int i;
 176
 177         if (num_parms < 3) {
 178                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 179                 return;
 180         }
 181
 182         if (imap_is_message_set(parms[2])) {
 183                 imap_pick_range(parms[2], 0);
 184         }
 185         else {
 186                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 187                 return;
 188         }
 189
 190         strcpy(items, "");
 191         for (i=3; i<num_parms; ++i) {
 192                 strcat(items, parms[i]);
 193                 if (i < (num_parms-1)) strcat(items, " ");
 194         }
 195
 196         num_items = imap_extract_data_items(itemlist, items);
 197         if (num_items < 1) {
 198                 cprintf("%s BAD invalid data item list\r\n", parms[0]);
 199                 return;
 200         }
 201
 202         imap_do_store(num_items, itemlist);
 203
 204 #ifdef INSTANT_EXPUNGE
 205         /*
 206          * The following two commands implement "instant expunge"
 207          * which is experimental.
 208          */
 209         imap_do_expunge();
 210         imap_rescan_msgids();
 211 #endif /* INSTANT_EXPUNGE */
 212
 213         cprintf("%s OK STORE completed\r\n", parms[0]);
 214 }
 215
 216 /*
 217  * This function is called by the main command loop.
 218  */
 219 void imap_uidstore(int num_parms, char *parms[]) {
 220         char items[1024];
 221         char *itemlist[256];
 222         int num_items;
 223         int i;
 224
 225         if (num_parms < 4) {
 226                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 227                 return;
 228         }
 229
 230         if (imap_is_message_set(parms[3])) {
 231                 imap_pick_range(parms[3], 1);
 232         }
 233         else {
 234                 cprintf("%s BAD invalid parameters\r\n", parms[0]);
 235                 return;
 236         }
 237
 238         strcpy(items, "");
 239         for (i=4; i<num_parms; ++i) {
 240                 strcat(items, parms[i]);
 241                 if (i < (num_parms-1)) strcat(items, " ");
 242         }
 243
 244         num_items = imap_extract_data_items(itemlist, items);
 245         if (num_items < 1) {
 246                 cprintf("%s BAD invalid data item list\r\n", parms[0]);
 247                 return;
 248         }
 249
 250         imap_do_store(num_items, itemlist);
 251         cprintf("%s OK UID STORE completed\r\n", parms[0]);
 252 }
 253
 254