4 * Utility functions for the IMAP module.
14 #include "sysdep_decls.h"
17 #include "internet_addressing.h"
18 #include "imap_tools.h"
26 * Output a string to the IMAP client, either as a literal or quoted.
27 * (We do a literal if it has any double-quotes or backslashes.)
29 void imap_strout(char *buf)
34 if (buf == NULL) { /* yeah, we handle this */
38 for (i = 0; i < strlen(buf); ++i) {
39 if ((buf[i] == '\"') || (buf[i] == '\\'))
44 cprintf("{%ld}\r\n%s", (long)strlen(buf), buf);
46 cprintf("\"%s\"", buf);
55 * Break a command down into tokens, taking into consideration the
56 * possibility of escaping spaces using quoted tokens
58 int imap_parameterize(char **args, char *buf)
68 original_len = strlen(buf);
70 for (i = 0; i < original_len; ++i) {
72 if ((isspace(buf[i])) && (!in_quote)) {
74 args[num] = &buf[start];
76 if (args[num][0] == '\"') {
78 args[num][strlen(args[num]) - 1] = 0;
81 } else if ((buf[i] == '\"') && (!in_quote)) {
83 } else if ((buf[i] == '\"') && (in_quote)) {
92 * Convert a struct ctdlroom to an IMAP-compatible mailbox name.
94 void imap_mailboxname(char *buf, int bufsize, struct ctdlroom *qrbuf)
101 * For mailboxes, just do it straight.
102 * Do the Cyrus-compatible thing: all private folders are
103 * subfolders of INBOX.
105 if (qrbuf->QRflags & QR_MAILBOX) {
106 safestrncpy(buf, qrbuf->QRname, bufsize);
107 strcpy(buf, &buf[11]);
108 if (!strcasecmp(buf, MAILROOM)) {
109 strcpy(buf, "INBOX");
112 sprintf(buf2, "INBOX|%s", buf);
117 * Otherwise, prefix the floor name as a "public folders" moniker
120 fl = cgetfloor(qrbuf->QRfloor);
121 snprintf(buf, bufsize, "%s|%s",
127 * Replace delimiter characters with "|" for pseudo-folder-delimiting
129 for (i=0; i<strlen(buf); ++i) {
130 if (buf[i] == FDELIM) buf[i] = '|';
136 * Convert an inputted folder name to our best guess as to what an equivalent
137 * room name should be.
139 * If an error occurs, it returns -1. Otherwise...
141 * The lower eight bits of the return value are the floor number on which the
142 * room most likely resides. The upper eight bits may contain flags,
143 * including IR_MAILBOX if we're dealing with a personal room.
146 int imap_roomname(char *rbuf, int bufsize, char *foldername)
155 if (foldername == NULL) return(-1);
156 levels = num_parms(foldername);
159 * Convert the crispy idiot's reserved names to our reserved names.
160 * Also handle Cyrus-compatible folder names.
162 if (!strcasecmp(foldername, "INBOX")) {
163 safestrncpy(rbuf, MAILROOM, bufsize);
164 ret = (0 | IR_MAILBOX);
166 else if (!strncasecmp(foldername, "INBOX|", 6)) {
167 safestrncpy(rbuf, &foldername[6], bufsize);
168 ret = (0 | IR_MAILBOX);
170 else if (levels > 1) {
171 extract(floorname, foldername, 0);
172 strcpy(roomname, &foldername[strlen(floorname)+1]);
173 for (i = 0; i < MAXFLOORS; ++i) {
175 if (fl->f_flags & F_INUSE) {
176 if (!strcasecmp(floorname, fl->f_name)) {
177 strcpy(rbuf, roomname);
184 /* No subfolderificationalisticism on this one... */
185 safestrncpy(rbuf, foldername, bufsize);
186 ret = (0 | IR_MAILBOX);
191 safestrncpy(rbuf, foldername, bufsize);
192 ret = (0 | IR_MAILBOX);
195 /* Undelimiterizationalisticize the room name (change '|') */
196 for (i=0; i<strlen(rbuf); ++i) {
197 if (rbuf[i] == '|') rbuf[i] = FDELIM;
201 /*** This doesn't work.
203 if (ret & IR_MAILBOX) {
204 if (atol(rbuf) == 0L) {
206 sprintf(rbuf, "%010ld.%s", CC->user.usernum, buf);
211 lprintf(9, "(That translates to \"%s\")\n", rbuf);
220 * Output a struct internet_address_list in the form an IMAP client wants
222 void imap_ial_out(struct internet_address_list *ialist)
224 struct internet_address_list *iptr;
226 if (ialist == NULL) {
232 for (iptr = ialist; iptr != NULL; iptr = iptr->next) {
234 imap_strout(iptr->ial_name);
236 imap_strout(iptr->ial_user);
238 imap_strout(iptr->ial_node);
248 * Determine whether the supplied string is a valid message set.
249 * If the string contains only numbers, colons, commas, and asterisks,
250 * return 1 for a valid message set. If any other character is found,
253 int imap_is_message_set(char *buf)
258 return (0); /* stupidity checks */
259 if (strlen(buf) == 0)
262 if (!strcasecmp(buf, "ALL"))
263 return (1); /* macro? why? */
265 for (i = 0; i < strlen(buf); ++i) { /* now start the scan */
275 return (1); /* looks like we're good */
280 * imap_match.c, based on wildmat.c from INN
281 * hacked for Citadel/IMAP by Daniel Malament
284 /* note: not all return statements use these; don't change them */
285 #define WILDMAT_TRUE 1
286 #define WILDMAT_FALSE 0
287 #define WILDMAT_ABORT -1
288 #define WILDMAT_DELIM '|'
291 * Match text and p, return TRUE, FALSE, or ABORT.
293 static int do_imap_match(const char *supplied_text, const char *supplied_p)
296 char lcase_text[SIZ], lcase_p[SIZ];
297 char *text = lcase_text;
300 /* Copy both strings and lowercase them, in order to
301 * make this entire operation case-insensitive.
303 for (i=0; i<=strlen(supplied_text); ++i)
304 lcase_text[i] = tolower(supplied_text[i]);
305 for (i=0; i<=strlen(supplied_p); ++i)
306 p[i] = tolower(supplied_p[i]);
309 for (; *p; text++, p++) {
310 if ((*text == '\0') && (*p != '*') && (*p != '%')) {
311 return WILDMAT_ABORT;
316 return WILDMAT_FALSE;
321 while (++p, ((*p == '*') || (*p == '%'))) {
322 /* Consecutive stars or %'s act
323 * just like one star.
328 /* Trailing star matches everything. */
332 if ((matched = do_imap_match(text++, p))
337 return WILDMAT_ABORT;
339 while (++p, ((*p == '*') || (*p == '%'))) {
340 /* Consecutive %'s act just like one, but even
341 * a single star makes the sequence act like
351 * Trailing % matches everything
352 * without a delimiter.
355 if (*text == WILDMAT_DELIM) {
356 return WILDMAT_FALSE;
362 while (*text && (*(text - 1) != WILDMAT_DELIM)) {
363 if ((matched = do_imap_match(text++, p))
368 return WILDMAT_ABORT;
372 return (*text == '\0');
378 * Support function for mailbox pattern name matching in LIST and LSUB
379 * Returns nonzero if the supplied mailbox name matches the supplied pattern.
381 int imap_mailbox_matches_pattern(char *pattern, char *mailboxname)
383 /* handle just-star case quickly */
384 if ((pattern[0] == '*') && (pattern[1] == '\0')) {
387 return (do_imap_match(mailboxname, pattern) == WILDMAT_TRUE);
393 * Compare an IMAP date string (date only, no time) to the date found in
396 int imap_datecmp(char *datestr, time_t msgtime) {
401 int day, month, year;
402 int msgday, msgmonth, msgyear;
405 if (datestr == NULL) return(0);
407 /* Expecting a date in the form dd-Mmm-yyyy */
408 extract_token(daystr, datestr, 0, '-');
409 extract_token(monthstr, datestr, 1, '-');
410 extract_token(yearstr, datestr, 2, '-');
413 year = atoi(yearstr);
415 for (i=0; i<12; ++i) {
416 if (!strcasecmp(monthstr, ascmonths[i])) {
421 /* Extract day/month/year from message timestamp */
422 memcpy(&msgtm, localtime(&msgtime), sizeof(struct tm));
423 msgday = msgtm.tm_mday;
424 msgmonth = msgtm.tm_mon;
425 msgyear = msgtm.tm_year + 1900;
427 /* Now start comparing */
429 if (year < msgyear) return(+1);
430 if (year > msgyear) return(-1);
432 if (month < msgmonth) return(+1);
433 if (month > msgmonth) return(-1);
435 if (day < msgday) return(+1);
436 if (day > msgday) return(-1);