/*
* This file contains functions which handle the mapping of Internet addresses
* to users on the Citadel system.
+ *
+ * Copyright (c) 1987-2021 by the citadel.org team
+ *
+ * This program is open source software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
*/
#include "sysdep.h"
#include <pwd.h>
#include <errno.h>
#include <sys/types.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
+#include <time.h>
#include <sys/wait.h>
#include <string.h>
#include <limits.h>
#include <iconv.h>
#if 0
-/* This is the non-define version in case of s.b. needing to debug */
+/* This is the non-define version in case it is needed for debugging */
inline void FindNextEnd (char *bptr, char *end)
{
/* Find the next ?Q? */
char encoding[16];
char istr[1024];
iconv_t ic = (iconv_t)(-1) ;
- char *ibuf; /**< Buffer of characters to be converted */
- char *obuf; /**< Buffer for converted characters */
- size_t ibuflen; /**< Length of input buffer */
- size_t obuflen; /**< Length of output buffer */
- char *isav; /**< Saved pointer to input buffer */
- char *osav; /**< Saved pointer to output buffer */
+ char *ibuf; // Buffer of characters to be converted
+ char *obuf; // Buffer for converted characters
+ size_t ibuflen; // Length of input buffer
+ size_t obuflen; // Length of output buffer
+ char *isav; // Saved pointer to input buffer
+ char *osav; // Saved pointer to output buffer
int passes = 0;
int i, len, delta;
int illegal_non_rfc2047_encoding = 0;
/* Sometimes, badly formed messages contain strings which were simply
- * written out directly in some foreign character set instead of
- * using RFC2047 encoding. This is illegal but we will attempt to
- * handle it anyway by converting from a user-specified default
- * charset to UTF-8 if we see any nonprintable characters.
+ * written out directly in some foreign character set instead of
+ * using RFC2047 encoding. This is illegal but we will attempt to
+ * handle it anyway by converting from a user-specified default
+ * charset to UTF-8 if we see any nonprintable characters.
*/
len = strlen(buf);
for (i=0; i<len; ++i) {
if ((buf[i] < 32) || (buf[i] > 126)) {
illegal_non_rfc2047_encoding = 1;
- i = len; ///< take a shortcut, it won't be more than one.
+ i = len; // take a shortcut, it won't be more than one.
}
}
if (illegal_non_rfc2047_encoding) {
if (start != NULL)
FindNextEnd (start, end);
- while ((start != NULL) && (end != NULL))
- {
+ while ((start != NULL) && (end != NULL)) {
next = strstr(end, "=?");
if (next != NULL)
FindNextEnd(next, nextend);
next = NULL;
/* did we find two partitions */
- if ((next != NULL) &&
- ((next - end) > 2))
- {
+ if ((next != NULL) && ((next - end) > 2)) {
ptr = end + 2;
while ((ptr < next) &&
(isspace(*ptr) ||
*/
start = strstr(buf, "=?");
FindNextEnd((start != NULL)? start : buf, end);
- while (start != NULL && end != NULL && end > start)
- {
+ while (start != NULL && end != NULL && end > start) {
extract_token(charset, start, 1, '?', sizeof charset);
extract_token(encoding, start, 2, '?', sizeof encoding);
extract_token(istr, start, 3, '?', sizeof istr);
ibuf = malloc(1024);
isav = ibuf;
- if (!strcasecmp(encoding, "B")) { /**< base64 */
+ if (!strcasecmp(encoding, "B")) { // base64
ibuflen = CtdlDecodeBase64(ibuf, istr, strlen(istr));
}
- else if (!strcasecmp(encoding, "Q")) { /**< quoted-printable */
+ else if (!strcasecmp(encoding, "Q")) { // quoted-printable
size_t len;
- long pos;
+ unsigned long pos;
len = strlen(istr);
pos = 0;
- while (pos < len)
- {
+ while (pos < len) {
if (istr[pos] == '_') istr[pos] = ' ';
pos++;
}
-
ibuflen = CtdlDecodeQuotedPrintable(ibuf, istr, len);
}
else {
- strcpy(ibuf, istr); /**< unknown encoding */
+ strcpy(ibuf, istr); // unknown encoding
ibuflen = strlen(istr);
}
#endif
-
struct trynamebuf {
char buffer1[SIZ];
char buffer2[SIZ];
};
char *inetcfg = NULL;
-struct spamstrings_t *spamstrings = NULL;
-
/*
* Return nonzero if the supplied name is an alias for this host.
char host[256], type[256];
int found = 0;
- if (fqdn == NULL) return(hostalias_nomatch);
- if (IsEmptyStr(fqdn)) return(hostalias_nomatch);
- if (!strcasecmp(fqdn, "localhost")) return(hostalias_localhost);
- if (!strcasecmp(fqdn, config.c_fqdn)) return(hostalias_localhost);
- if (!strcasecmp(fqdn, config.c_nodename)) return(hostalias_localhost);
- if (inetcfg == NULL) return(hostalias_nomatch);
+ if (fqdn == NULL) return(hostalias_nomatch);
+ if (IsEmptyStr(fqdn)) return(hostalias_nomatch);
+ if (!strcasecmp(fqdn, "localhost")) return(hostalias_localhost);
+ if (!strcasecmp(fqdn, CtdlGetConfigStr("c_fqdn"))) return(hostalias_localhost);
+ if (!strcasecmp(fqdn, CtdlGetConfigStr("c_nodename"))) return(hostalias_localhost);
+ if (inetcfg == NULL) return(hostalias_nomatch);
config_lines = num_tokens(inetcfg, '\n');
for (i=0; i<config_lines; ++i) {
found = 0;
/* Process these in a specific order, in case there are multiple matches.
- * We want directory to override masq, for example.
+ * We want localhost to override masq, for example.
*/
if ( (!strcasecmp(type, "masqdomain")) && (!strcasecmp(fqdn, host))) {
found = hostalias_masq;
}
+
if ( (!strcasecmp(type, "localhost")) && (!strcasecmp(fqdn, host))) {
found = hostalias_localhost;
}
+
+ // "directory" used to be a distributed version of "localhost" but they're both the same now
if ( (!strcasecmp(type, "directory")) && (!strcasecmp(fqdn, host))) {
- found = hostalias_directory;
+ found = hostalias_localhost;
}
if (found) return(found);
}
-
return(hostalias_nomatch);
}
+/*
+ * Determine whether a given Internet address belongs to the current user
+ */
+int CtdlIsMe(char *addr, int addr_buf_len)
+{
+ struct recptypes *recp;
+ int i;
+ recp = validate_recipients(addr, NULL, 0);
+ if (recp == NULL) return(0);
+ if (recp->num_local == 0) {
+ free_recipients(recp);
+ return(0);
+ }
+ for (i=0; i<recp->num_local; ++i) {
+ extract_token(addr, recp->recp_local, i, '|', addr_buf_len);
+ if (!strcasecmp(addr, CC->user.fullname)) {
+ free_recipients(recp);
+ return(1);
+ }
+ }
+
+ free_recipients(recp);
+ return(0);
+}
+
+
+/* If the last item in a list of recipients was truncated to a partial address,
+ * remove it completely in order to avoid choking library functions.
+ */
+void sanitize_truncated_recipient(char *str)
+{
+ if (!str) return;
+ if (num_tokens(str, ',') < 2) return;
+
+ int len = strlen(str);
+ if (len < 900) return;
+ if (len > 998) str[998] = 0;
+
+ char *cptr = strrchr(str, ',');
+ if (!cptr) return;
+
+ char *lptr = strchr(cptr, '<');
+ char *rptr = strchr(cptr, '>');
+
+ if ( (lptr) && (rptr) && (rptr > lptr) ) return;
+
+ *cptr = 0;
+}
/*
- * Return 0 if a given string fuzzy-matches a Citadel user account
- *
- * FIXME ... this needs to be updated to handle aliases.
+ * This function is self explanatory.
+ * (What can I say, I'm in a weird mood today...)
+ */
+void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name) {
+ char *ptr;
+ if (!name) return;
+
+ for (ptr=name; *ptr; ++ptr) {
+ while ( (isspace(*ptr)) && (*(ptr+1)=='@') ) {
+ strcpy(ptr, ptr+1);
+ if (ptr > name) --ptr;
+ }
+ while ( (*ptr=='@') && (*(ptr+1)!=0) && (isspace(*(ptr+1))) ) {
+ strcpy(ptr+1, ptr+2);
+ }
+ }
+}
+
+
+/*
+ * Aliasing for network mail.
*/
-int fuzzy_match(struct ctdluser *us, char *matchstring) {
+int alias(char *name) { /* process alias and routing info for mail */
int a;
+ char aaa[SIZ];
+ int at = 0;
+ char node[64];
+
+ char original_name[256];
+ safestrncpy(original_name, name, sizeof original_name);
+
+ striplt(name);
+ remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
+ stripallbut(name, '<', '>');
+
+ /* Hit the email address directory */
+ if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
+ strcpy(name, aaa);
+ }
+
+ if (strcasecmp(original_name, name)) {
+ syslog(LOG_INFO, "internet_addressing: %s is being forwarded to %s", original_name, name);
+ }
+
+ /* Change "user @ xxx" to "user" if xxx is an alias for this host */
+ for (a=0; name[a] != '\0'; ++a) {
+ if (name[a] == '@') {
+ if (CtdlHostAlias(&name[a+1]) == hostalias_localhost) {
+ name[a] = 0;
+ syslog(LOG_DEBUG, "internet_addressing: changed to <%s>", name);
+ break;
+ }
+ }
+ }
+
+ /* determine local or remote type, see citadel.h */
+ at = haschar(name, '@');
+ if (at == 0) return(MES_LOCAL); /* no @'s - local address */
+ if (at > 1) return(MES_ERROR); /* >1 @'s - invalid address */
+ remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
+
+ /* figure out the delivery mode */
+ extract_token(node, name, 1, '@', sizeof node);
+
+ /* If there are one or more dots in the nodename, we assume that it
+ * is an FQDN and will attempt SMTP delivery to the Internet.
+ */
+ if (haschar(node, '.') > 0) {
+ return(MES_INTERNET);
+ }
+
+ /* If we get to this point it's an invalid node name */
+ return (MES_ERROR);
+}
+
+
+/*
+ * Validate recipients, count delivery types and errors, and handle aliasing
+ * FIXME check for dupes!!!!!
+ *
+ * Returns 0 if all addresses are ok, ret->num_error = -1 if no addresses
+ * were specified, or the number of addresses found invalid.
+ *
+ * Caller needs to free the result using free_recipients()
+ */
+struct recptypes *validate_recipients(const char *supplied_recipients, const char *RemoteIdentifier, int Flags) {
+ struct CitContext *CCC = CC;
+ struct recptypes *ret;
+ char *recipients = NULL;
+ char *org_recp;
+ char this_recp[256];
+ char this_recp_cooked[256];
+ char append[SIZ];
long len;
+ int num_recps = 0;
+ int i, j;
+ int mailtype;
+ int invalid;
+ struct ctdluser tempUS;
+ struct ctdlroom tempQR;
+ struct ctdlroom tempQR2;
+ int err = 0;
+ char errmsg[SIZ];
+ int in_quotes = 0;
+
+ /* Initialize */
+ ret = (struct recptypes *) malloc(sizeof(struct recptypes));
+ if (ret == NULL) return(NULL);
+
+ /* Set all strings to null and numeric values to zero */
+ memset(ret, 0, sizeof(struct recptypes));
+
+ if (supplied_recipients == NULL) {
+ recipients = strdup("");
+ }
+ else {
+ recipients = strdup(supplied_recipients);
+ }
- if ( (!strncasecmp(matchstring, "cit", 3))
- && (atol(&matchstring[3]) == us->usernum)) {
- return 0;
+ /* Allocate some memory. Yes, this allocates 500% more memory than we will
+ * actually need, but it's healthier for the heap than doing lots of tiny
+ * realloc() calls instead.
+ */
+ len = strlen(recipients) + 1024;
+ ret->errormsg = malloc(len);
+ ret->recp_local = malloc(len);
+ ret->recp_internet = malloc(len);
+ ret->recp_room = malloc(len);
+ ret->display_recp = malloc(len);
+ ret->recp_orgroom = malloc(len);
+ org_recp = malloc(len);
+
+ ret->errormsg[0] = 0;
+ ret->recp_local[0] = 0;
+ ret->recp_internet[0] = 0;
+ ret->recp_room[0] = 0;
+ ret->recp_orgroom[0] = 0;
+ ret->display_recp[0] = 0;
+
+ ret->recptypes_magic = RECPTYPES_MAGIC;
+
+ /* Change all valid separator characters to commas */
+ for (i=0; !IsEmptyStr(&recipients[i]); ++i) {
+ if ((recipients[i] == ';') || (recipients[i] == '|')) {
+ recipients[i] = ',';
+ }
}
- len = strlen(matchstring);
- for (a=0; !IsEmptyStr(&us->fullname[a]); ++a) {
- if (!strncasecmp(&us->fullname[a],
- matchstring, len)) {
- return 0;
+ /* Now start extracting recipients... */
+
+ while (!IsEmptyStr(recipients)) {
+ for (i=0; i<=strlen(recipients); ++i) {
+ if (recipients[i] == '\"') in_quotes = 1 - in_quotes;
+ if ( ( (recipients[i] == ',') && (!in_quotes) ) || (recipients[i] == 0) ) {
+ safestrncpy(this_recp, recipients, i+1);
+ this_recp[i] = 0;
+ if (recipients[i] == ',') {
+ strcpy(recipients, &recipients[i+1]);
+ }
+ else {
+ strcpy(recipients, "");
+ }
+ break;
+ }
+ }
+
+ striplt(this_recp);
+ if (IsEmptyStr(this_recp))
+ break;
+ syslog(LOG_DEBUG, "internet_addressing: evaluating recipient #%d: %s", num_recps, this_recp);
+ ++num_recps;
+
+ strcpy(org_recp, this_recp);
+ alias(this_recp);
+ alias(this_recp);
+ mailtype = alias(this_recp);
+
+ for (j = 0; !IsEmptyStr(&this_recp[j]); ++j) {
+ if (this_recp[j]=='_') {
+ this_recp_cooked[j] = ' ';
+ }
+ else {
+ this_recp_cooked[j] = this_recp[j];
+ }
+ }
+ this_recp_cooked[j] = '\0';
+ invalid = 0;
+ errmsg[0] = 0;
+ switch(mailtype) {
+ case MES_LOCAL:
+ if (!strcasecmp(this_recp, "sysop")) {
+ ++ret->num_room;
+ strcpy(this_recp, CtdlGetConfigStr("c_aideroom"));
+ if (!IsEmptyStr(ret->recp_room)) {
+ strcat(ret->recp_room, "|");
+ }
+ strcat(ret->recp_room, this_recp);
+ }
+ else if ( (!strncasecmp(this_recp, "room_", 5)) && (!CtdlGetRoom(&tempQR, &this_recp_cooked[5])) ) {
+
+ /* Save room so we can restore it later */
+ tempQR2 = CCC->room;
+ CCC->room = tempQR;
+
+ /* Check permissions to send mail to this room */
+ err = CtdlDoIHavePermissionToPostInThisRoom(
+ errmsg,
+ sizeof errmsg,
+ RemoteIdentifier,
+ Flags,
+ 0 /* 0 = not a reply */
+ );
+ if (err) {
+ ++ret->num_error;
+ invalid = 1;
+ }
+ else {
+ ++ret->num_room;
+ if (!IsEmptyStr(ret->recp_room)) {
+ strcat(ret->recp_room, "|");
+ }
+ strcat(ret->recp_room, &this_recp_cooked[5]);
+
+ if (!IsEmptyStr(ret->recp_orgroom)) {
+ strcat(ret->recp_orgroom, "|");
+ }
+ strcat(ret->recp_orgroom, org_recp);
+
+ }
+
+ /* Restore room in case something needs it */
+ CCC->room = tempQR2;
+
+ }
+ else if (CtdlGetUser(&tempUS, this_recp) == 0) {
+ ++ret->num_local;
+ strcpy(this_recp, tempUS.fullname);
+ if (!IsEmptyStr(ret->recp_local)) {
+ strcat(ret->recp_local, "|");
+ }
+ strcat(ret->recp_local, this_recp);
+ }
+ else if (CtdlGetUser(&tempUS, this_recp_cooked) == 0) {
+ ++ret->num_local;
+ strcpy(this_recp, tempUS.fullname);
+ if (!IsEmptyStr(ret->recp_local)) {
+ strcat(ret->recp_local, "|");
+ }
+ strcat(ret->recp_local, this_recp);
+ }
+ else {
+ ++ret->num_error;
+ invalid = 1;
+ }
+ break;
+ case MES_INTERNET:
+ /* Yes, you're reading this correctly: if the target
+ * domain points back to the local system,
+ * the address is invalid. That's
+ * because if the address were valid, we would have
+ * already translated it to a local address by now.
+ */
+ if (IsDirectory(this_recp, 0)) {
+ ++ret->num_error;
+ invalid = 1;
+ }
+ else {
+ ++ret->num_internet;
+ if (!IsEmptyStr(ret->recp_internet)) {
+ strcat(ret->recp_internet, "|");
+ }
+ strcat(ret->recp_internet, this_recp);
+ }
+ break;
+ case MES_ERROR:
+ ++ret->num_error;
+ invalid = 1;
+ break;
+ }
+ if (invalid) {
+ if (IsEmptyStr(errmsg)) {
+ snprintf(append, sizeof append, "Invalid recipient: %s", this_recp);
+ }
+ else {
+ snprintf(append, sizeof append, "%s", errmsg);
+ }
+ if ( (strlen(ret->errormsg) + strlen(append) + 3) < SIZ) {
+ if (!IsEmptyStr(ret->errormsg)) {
+ strcat(ret->errormsg, "; ");
+ }
+ strcat(ret->errormsg, append);
+ }
}
+ else {
+ if (IsEmptyStr(ret->display_recp)) {
+ strcpy(append, this_recp);
+ }
+ else {
+ snprintf(append, sizeof append, ", %s", this_recp);
+ }
+ if ( (strlen(ret->display_recp)+strlen(append)) < SIZ) {
+ strcat(ret->display_recp, append);
+ }
+ }
+ }
+ free(org_recp);
+
+ if ( (ret->num_local + ret->num_internet + ret->num_room + ret->num_error) == 0) {
+ ret->num_error = (-1);
+ strcpy(ret->errormsg, "No recipients specified.");
}
- return -1;
+
+ syslog(LOG_DEBUG, "internet_addressing: validate_recipients() = %d local, %d room, %d SMTP, %d error",
+ ret->num_local, ret->num_room, ret->num_internet, ret->num_error
+ );
+
+ free(recipients);
+ return(ret);
+}
+
+
+/*
+ * Destructor for recptypes
+ */
+void free_recipients(struct recptypes *valid) {
+
+ if (valid == NULL) {
+ return;
+ }
+
+ if (valid->recptypes_magic != RECPTYPES_MAGIC) {
+ syslog(LOG_ERR, "internet_addressing: attempt to call free_recipients() on some other data type!");
+ abort();
+ }
+
+ if (valid->errormsg != NULL) free(valid->errormsg);
+ if (valid->recp_local != NULL) free(valid->recp_local);
+ if (valid->recp_internet != NULL) free(valid->recp_internet);
+ if (valid->recp_room != NULL) free(valid->recp_room);
+ if (valid->recp_orgroom != NULL) free(valid->recp_orgroom);
+ if (valid->display_recp != NULL) free(valid->display_recp);
+ if (valid->bounce_to != NULL) free(valid->bounce_to);
+ if (valid->envelope_from != NULL) free(valid->envelope_from);
+ if (valid->sending_room != NULL) free(valid->sending_room);
+ free(valid);
+}
+
+
+char *qp_encode_email_addrs(char *source) {
+ char *user, *node, *name;
+ const char headerStr[] = "=?UTF-8?Q?";
+ char *Encoded;
+ char *EncodedName;
+ char *nPtr;
+ int need_to_encode = 0;
+ long SourceLen;
+ long EncodedMaxLen;
+ long nColons = 0;
+ long *AddrPtr;
+ long *AddrUtf8;
+ long nAddrPtrMax = 50;
+ long nmax;
+ int InQuotes = 0;
+ int i, n;
+
+ if (source == NULL) return source;
+ if (IsEmptyStr(source)) return source;
+ syslog(LOG_DEBUG, "internet_addressing: qp_encode_email_addrs <%s>", source);
+
+ AddrPtr = malloc (sizeof (long) * nAddrPtrMax);
+ AddrUtf8 = malloc (sizeof (long) * nAddrPtrMax);
+ memset(AddrUtf8, 0, sizeof (long) * nAddrPtrMax);
+ *AddrPtr = 0;
+ i = 0;
+ while (!IsEmptyStr (&source[i])) {
+ if (nColons >= nAddrPtrMax){
+ long *ptr;
+
+ ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
+ memcpy (ptr, AddrPtr, sizeof (long) * nAddrPtrMax);
+ free (AddrPtr), AddrPtr = ptr;
+
+ ptr = (long *) malloc(sizeof (long) * nAddrPtrMax * 2);
+ memset(&ptr[nAddrPtrMax], 0, sizeof (long) * nAddrPtrMax);
+
+ memcpy (ptr, AddrUtf8, sizeof (long) * nAddrPtrMax);
+ free (AddrUtf8), AddrUtf8 = ptr;
+ nAddrPtrMax *= 2;
+ }
+ if (((unsigned char) source[i] < 32) || ((unsigned char) source[i] > 126)) {
+ need_to_encode = 1;
+ AddrUtf8[nColons] = 1;
+ }
+ if (source[i] == '"') {
+ InQuotes = !InQuotes;
+ }
+ if (!InQuotes && source[i] == ',') {
+ AddrPtr[nColons] = i;
+ nColons++;
+ }
+ i++;
+ }
+ if (need_to_encode == 0) {
+ free(AddrPtr);
+ free(AddrUtf8);
+ return source;
+ }
+
+ SourceLen = i;
+ EncodedMaxLen = nColons * (sizeof(headerStr) + 3) + SourceLen * 3;
+ Encoded = (char*) malloc (EncodedMaxLen);
+
+ for (i = 0; i < nColons; i++) {
+ source[AddrPtr[i]++] = '\0';
+ }
+ /* TODO: if libidn, this might get larger*/
+ user = malloc(SourceLen + 1);
+ node = malloc(SourceLen + 1);
+ name = malloc(SourceLen + 1);
+
+ nPtr = Encoded;
+ *nPtr = '\0';
+ for (i = 0; i < nColons && nPtr != NULL; i++) {
+ nmax = EncodedMaxLen - (nPtr - Encoded);
+ if (AddrUtf8[i]) {
+ process_rfc822_addr(&source[AddrPtr[i]], user, node, name);
+ /* TODO: libIDN here ! */
+ if (IsEmptyStr(name)) {
+ n = snprintf(nPtr, nmax, (i==0)?"%s@%s" : ",%s@%s", user, node);
+ }
+ else {
+ EncodedName = rfc2047encode(name, strlen(name));
+ n = snprintf(nPtr, nmax, (i==0)?"%s <%s@%s>" : ",%s <%s@%s>", EncodedName, user, node);
+ free(EncodedName);
+ }
+ }
+ else {
+ n = snprintf(nPtr, nmax, (i==0)?"%s" : ",%s", &source[AddrPtr[i]]);
+ }
+ if (n > 0 )
+ nPtr += n;
+ else {
+ char *ptr, *nnPtr;
+ ptr = (char*) malloc(EncodedMaxLen * 2);
+ memcpy(ptr, Encoded, EncodedMaxLen);
+ nnPtr = ptr + (nPtr - Encoded), nPtr = nnPtr;
+ free(Encoded), Encoded = ptr;
+ EncodedMaxLen *= 2;
+ i--; /* do it once more with properly lengthened buffer */
+ }
+ }
+ for (i = 0; i < nColons; i++)
+ source[--AddrPtr[i]] = ',';
+
+ free(user);
+ free(node);
+ free(name);
+ free(AddrUtf8);
+ free(AddrPtr);
+ return Encoded;
}
sField < pFieldEnd;
pField++, sField++)
{
- if ((*sField=='\r') || (*sField=='\n')) {
- sField++;
- if (*sField == '\n')
- sField++;
- *pField = *sField;
+ if ((*sField=='\r') || (*sField=='\n'))
+ {
+ int offset = 1;
+ while ( ( (*(sField + offset) == '\r') || (*(sField + offset) == '\n' )) && (sField + offset < pFieldEnd) ) {
+ offset ++;
+ }
+ sField += offset;
+ *pField = *sField;
}
else {
if (*sField=='\"') quote = 1 - quote;
if (!quote) {
- if (isspace(*sField))
- {
+ if (isspace(*sField)) {
*pField = ' ';
pField++;
sField++;
}
-
/*
* Split an RFC822-style address into userid, host, and full name
*
*/
-void process_rfc822_addr(const char *rfc822, char *user, char *node, char *name)
-{
+void process_rfc822_addr(const char *rfc822, char *user, char *node, char *name) {
int a;
strcpy(user, "");
- strcpy(node, config.c_fqdn);
+ strcpy(node, CtdlGetConfigStr("c_fqdn"));
strcpy(name, "");
if (rfc822 == NULL) return;
strcpy(name, &name[1]);
/* and anything to the right of a @ or % */
- for (a = 0; a < strlen(name); ++a) {
- if (name[a] == '@')
+ for (a = 0; name[a] != '\0'; ++a) {
+ if (name[a] == '@') {
name[a] = 0;
- if (name[a] == '%')
+ break;
+ }
+ if (name[a] == '%') {
name[a] = 0;
+ break;
+ }
}
/* but if there are parentheses, that changes the rules... */
strcpy(&name[0], &name[1]);
}
strcpy(&name[0], &name[1]);
- for (a = 0; a < strlen(name); ++a)
- if (name[a] == 34)
+ for (a = 0; name[a] != '\0'; ++a)
+ if (name[a] == 34) {
name[a] = 0;
+ break;
+ }
}
/* extract user id */
strcpy(user, rfc822);
strcpy(user, &user[1]);
/* and anything to the right of a @ or % */
- for (a = 0; a < strlen(user); ++a) {
- if (user[a] == '@')
+ for (a = 0; user[a] != '\0'; ++a) {
+ if (user[a] == '@') {
user[a] = 0;
- if (user[a] == '%')
+ break;
+ }
+ if (user[a] == '%') {
user[a] = 0;
+ break;
+ }
}
&& (haschar(node, '%')==0)
&& (haschar(node, '!')==0)
) {
- strcpy(node, config.c_nodename);
+ strcpy(node, CtdlGetConfigStr("c_nodename"));
}
-
else {
/* strip anything to the left of a @ */
strcpy(node, &node[1]);
/* now get rid of the user portion of a node!user string */
- for (a = 0; a < strlen(node); ++a)
- if (node[a] == '!')
+ for (a = 0; node[a] != '\0'; ++a)
+ if (node[a] == '!') {
node[a] = 0;
+ break;
+ }
}
/* strip leading and trailing spaces in all strings */
}
-
/*
* convert_field() is a helper function for convert_internet_message().
* Given start/end positions for an rfc822 field, it converts it to a Citadel
int i;
const char *colonpos = NULL;
int processed = 0;
- char buf[SIZ];
char user[1024];
char node[1024];
char name[1024];
if (!strcasecmp(key, "Date")) {
parsed_date = parsedate(value);
if (parsed_date < 0L) parsed_date = time(NULL);
- snprintf(buf, sizeof buf, "%ld", (long)parsed_date );
- if (msg->cm_fields[eTimestamp] == NULL)
- msg->cm_fields[eTimestamp] = strdup(buf);
+
+ if (CM_IsEmpty(msg, eTimestamp))
+ CM_SetFieldLONG(msg, eTimestamp, parsed_date);
processed = 1;
}
else if (!strcasecmp(key, "From")) {
process_rfc822_addr(value, user, node, name);
- syslog(LOG_DEBUG, "Converted to <%s@%s> (%s)\n", user, node, name);
- snprintf(addr, sizeof addr, "%s@%s", user, node);
- if (msg->cm_fields[eAuthor] == NULL)
- msg->cm_fields[eAuthor] = strdup(name);
- if (msg->cm_fields[erFc822Addr] == NULL)
- msg->cm_fields[erFc822Addr] = strdup(addr);
+ syslog(LOG_DEBUG, "internet_addressing: converted to <%s@%s> (%s)", user, node, name);
+ snprintf(addr, sizeof(addr), "%s@%s", user, node);
+ if (CM_IsEmpty(msg, eAuthor) && !IsEmptyStr(name)) {
+ CM_SetField(msg, eAuthor, name, -1);
+ }
+ if (CM_IsEmpty(msg, erFc822Addr) && !IsEmptyStr(addr)) {
+ CM_SetField(msg, erFc822Addr, addr, -1);
+ }
processed = 1;
}
else if (!strcasecmp(key, "Subject")) {
- if (msg->cm_fields[eMsgSubject] == NULL)
- msg->cm_fields[eMsgSubject] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eMsgSubject))
+ CM_SetField(msg, eMsgSubject, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "List-ID")) {
- if (msg->cm_fields[eListID] == NULL)
- msg->cm_fields[eListID] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eListID))
+ CM_SetField(msg, eListID, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "To")) {
- if (msg->cm_fields[eRecipient] == NULL)
- msg->cm_fields[eRecipient] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eRecipient))
+ CM_SetField(msg, eRecipient, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "CC")) {
- if (msg->cm_fields[eCarbonCopY] == NULL)
- msg->cm_fields[eCarbonCopY] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eCarbonCopY))
+ CM_SetField(msg, eCarbonCopY, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "Message-ID")) {
- if (msg->cm_fields[emessageId] != NULL) {
- syslog(LOG_WARNING, "duplicate message id\n");
+ if (!CM_IsEmpty(msg, emessageId)) {
+ syslog(LOG_WARNING, "internet_addressing: duplicate message id");
}
+ else {
+ char *pValue;
+ long pValueLen;
- if (msg->cm_fields[emessageId] == NULL) {
- msg->cm_fields[emessageId] = strndup(value, valuelen);
-
+ pValue = value;
+ pValueLen = valuelen;
/* Strip angle brackets */
- while (haschar(msg->cm_fields[emessageId], '<') > 0) {
- strcpy(&msg->cm_fields[emessageId][0],
- &msg->cm_fields[emessageId][1]);
+ while (haschar(pValue, '<') > 0) {
+ pValue ++;
+ pValueLen --;
}
- for (i = 0; i<strlen(msg->cm_fields[emessageId]); ++i)
- if (msg->cm_fields[emessageId][i] == '>')
- msg->cm_fields[emessageId][i] = 0;
+
+ for (i = 0; i <= pValueLen; ++i)
+ if (pValue[i] == '>') {
+ pValueLen = i;
+ break;
+ }
+
+ CM_SetField(msg, emessageId, pValue, pValueLen);
}
processed = 1;
}
else if (!strcasecmp(key, "Return-Path")) {
- if (msg->cm_fields[eMessagePath] == NULL)
- msg->cm_fields[eMessagePath] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eMessagePath))
+ CM_SetField(msg, eMessagePath, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "Envelope-To")) {
- if (msg->cm_fields[eenVelopeTo] == NULL)
- msg->cm_fields[eenVelopeTo] = strndup(value, valuelen);
+ if (CM_IsEmpty(msg, eenVelopeTo))
+ CM_SetField(msg, eenVelopeTo, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "References")) {
- if (msg->cm_fields[eWeferences] != NULL) {
- free(msg->cm_fields[eWeferences]);
- }
- msg->cm_fields[eWeferences] = strndup(value, valuelen);
+ CM_SetField(msg, eWeferences, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "Reply-To")) {
- if (msg->cm_fields[eReplyTo] != NULL) {
- free(msg->cm_fields[eReplyTo]);
- }
- msg->cm_fields[eReplyTo] = strndup(value, valuelen);
+ CM_SetField(msg, eReplyTo, value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "In-reply-to")) {
- if (msg->cm_fields[eWeferences] == NULL) { /* References: supersedes In-reply-to: */
- msg->cm_fields[eWeferences] = strndup(value, valuelen);
- }
+ if (CM_IsEmpty(msg, eWeferences)) /* References: supersedes In-reply-to: */
+ CM_SetField(msg, eWeferences, value, valuelen);
processed = 1;
}
/* Clean up and move on. */
free(key); /* Don't free 'value', it's actually the same buffer */
- return(processed);
+ return processed;
}
/*
* Convert an RFC822 message (headers + body) to a CtdlMessage structure.
* NOTE: the supplied buffer becomes part of the CtdlMessage structure, and
- * will be deallocated when CtdlFreeMessage() is called. Therefore, the
+ * will be deallocated when CM_Free() is called. Therefore, the
* supplied buffer should be DEREFERENCED. It should not be freed or used
* again.
*/
}
-
struct CtdlMessage *convert_internet_message_buf(StrBuf **rfc822)
{
struct CtdlMessage *msg;
const char *pos, *beg, *end, *totalend;
int done, alldone = 0;
- char buf[SIZ];
int converted;
StrBuf *OtherHeaders;
if (pos < totalend)
StrBufAppendBufPlain(OtherHeaders, pos, totalend - pos, 0);
FreeStrBuf(rfc822);
- msg->cm_fields[eMesageText] = SmashStrBuf(&OtherHeaders);
+ CM_SetAsFieldSB(msg, eMesageText, &OtherHeaders);
/* Follow-up sanity checks... */
/* If there's no timestamp on this message, set it to now. */
- if (msg->cm_fields[eTimestamp] == NULL) {
- snprintf(buf, sizeof buf, "%ld", (long)time(NULL));
- msg->cm_fields[eTimestamp] = strdup(buf);
+ if (CM_IsEmpty(msg, eTimestamp)) {
+ CM_SetFieldLONG(msg, eTimestamp, time(NULL));
}
/* If a W (references, or rather, Wefewences) field is present, we
* have to convert it from RFC822 format to Citadel format.
*/
- if (msg->cm_fields[eWeferences] != NULL) {
+ if (!CM_IsEmpty(msg, eWeferences)) {
+ /// todo: API!
convert_references_to_wefewences(msg->cm_fields[eWeferences]);
}
}
-
/*
* Look for a particular header field in an RFC822 message text. If the
* requested field is found, it is unfolded (if necessary) and returned to
}
-
/*****************************************************************************
* DIRECTORY MANAGEMENT FUNCTIONS *
*****************************************************************************/
}
key[keylen++] = 0;
- syslog(LOG_DEBUG, "Directory key is <%s>\n", key);
+ syslog(LOG_DEBUG, "internet_addressing: directory key is <%s>", key);
}
-
-/* Return nonzero if the supplied address is in a domain we keep in
- * the directory
+/*
+ * Return nonzero if the supplied address is in one of "our" domains
*/
int IsDirectory(char *addr, int allow_masq_domains) {
char domain[256];
if ( (h == hostalias_masq) && allow_masq_domains)
return(1);
- if ( (h == hostalias_localhost) || (h == hostalias_directory) ) {
+ if (h == hostalias_localhost) {
return(1);
}
else {
}
-/*
- * Initialize the directory database (erasing anything already there)
- */
-void CtdlDirectoryInit(void) {
- cdb_trunc(CDB_DIRECTORY);
-}
-
-
/*
* Add an Internet e-mail address to the directory for a user
*/
int CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr) {
char key[SIZ];
- if (IsDirectory(internet_addr, 0) == 0)
+ if (IsDirectory(internet_addr, 0) == 0) {
return 0;
- syslog(LOG_DEBUG, "Create directory entry: %s --> %s\n", internet_addr, citadel_addr);
+ }
+ syslog(LOG_DEBUG, "internet_addressing: create directory entry: %s --> %s", internet_addr, citadel_addr);
directory_key(key, internet_addr);
cdb_store(CDB_DIRECTORY, key, strlen(key), citadel_addr, strlen(citadel_addr)+1 );
return 1;
*/
int CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr) {
char key[SIZ];
-
- syslog(LOG_DEBUG, "Delete directory entry: %s --> %s\n", internet_addr, citadel_addr);
+
+ syslog(LOG_DEBUG, "internet_addressing: delete directory entry: %s --> %s", internet_addr, citadel_addr);
directory_key(key, internet_addr);
return cdb_delete(CDB_DIRECTORY, key, strlen(key) ) == 0;
}
char key[SIZ];
/* Dump it in there unchanged, just for kicks */
- safestrncpy(target, internet_addr, targbuflen);
+ if (target != NULL) {
+ safestrncpy(target, internet_addr, targbuflen);
+ }
/* Only do lookups for addresses with hostnames in them */
if (num_tokens(internet_addr, '@') != 2) return(-1);
directory_key(key, internet_addr);
cdbrec = cdb_fetch(CDB_DIRECTORY, key, strlen(key) );
if (cdbrec != NULL) {
- safestrncpy(target, cdbrec->ptr, targbuflen);
+ if (target != NULL) {
+ safestrncpy(target, cdbrec->ptr, targbuflen);
+ }
cdb_free(cdbrec);
return(0);
}
is_harvestable = 1;
strcpy(addr, "");
- if (msg->cm_fields[eAuthor] != NULL) {
+ if (!CM_IsEmpty(msg, eAuthor)) {
strcat(addr, msg->cm_fields[eAuthor]);
}
- if (msg->cm_fields[erFc822Addr] != NULL) {
+ if (!CM_IsEmpty(msg, erFc822Addr)) {
strcat(addr, " <");
strcat(addr, msg->cm_fields[erFc822Addr]);
strcat(addr, ">");
if (i == 0) field = eRecipient;
if (i == 1) field = eCarbonCopY;
- if (msg->cm_fields[field] != NULL) {
+ if (!CM_IsEmpty(msg, field)) {
for (j=0; j<num_tokens(msg->cm_fields[field], ','); ++j) {
extract_token(addr, msg->cm_fields[field], j, ',', sizeof addr);
if (strstr(addr, "=?") != NULL)
utf8ify_rfc822_string(addr);
process_rfc822_addr(addr, user, node, name);
h = CtdlHostAlias(node);
- if ( (h != hostalias_localhost) && (h != hostalias_directory) ) {
+ if (h != hostalias_localhost) {
coll = realloc(coll, strlen(coll) + strlen(addr) + 4);
if (coll == NULL) return(NULL);
if (!IsEmptyStr(coll)) {
}
return(coll);
}
+
+
+/*
+ * Helper function for CtdlRebuildDirectoryIndex()
+ */
+void CtdlRebuildDirectoryIndex_backend(char *username, void *data) {
+
+ int j = 0;
+ struct ctdluser usbuf;
+
+ if (CtdlGetUser(&usbuf, username) != 0) {
+ return;
+ }
+
+ if ( (!IsEmptyStr(usbuf.fullname)) && (!IsEmptyStr(usbuf.emailaddrs)) ) {
+ for (j=0; j<num_tokens(usbuf.emailaddrs, '|'); ++j) {
+ char one_email[512];
+ extract_token(one_email, usbuf.emailaddrs, j, '|', sizeof one_email);
+ CtdlDirectoryAddUser(one_email, usbuf.fullname);
+ }
+ }
+}
+
+
+/*
+ * Initialize the directory database (erasing anything already there)
+ */
+void CtdlRebuildDirectoryIndex(void) {
+ syslog(LOG_INFO, "internet_addressing: rebuilding email address directory index");
+ cdb_trunc(CDB_DIRECTORY);
+ ForEachUser(CtdlRebuildDirectoryIndex_backend, NULL);
+}
+
+
+/*
+ * Configure Internet email addresses for a user account, updating the Directory Index in the process
+ */
+void CtdlSetEmailAddressesForUser(char *requested_user, char *new_emailaddrs)
+{
+ struct ctdluser usbuf;
+ int i;
+ char buf[SIZ];
+
+ if (CtdlGetUserLock(&usbuf, requested_user) != 0) { // We are relying on the fact that the DirectoryIndex functions don't lock.
+ return; // Silently fail here if we can't acquire a lock on the user record.
+ }
+
+ syslog(LOG_DEBUG, "internet_addressing: setting email addresses for <%s> to <%s>", usbuf.fullname, new_emailaddrs);
+
+ /* Delete all of the existing directory index records for the user (easier this way) */
+ for (i=0; i<num_tokens(usbuf.emailaddrs, '|'); ++i) {
+ extract_token(buf, usbuf.emailaddrs, i, '|', sizeof buf);
+ CtdlDirectoryDelUser(buf, requested_user);
+ }
+
+ strcpy(usbuf.emailaddrs, new_emailaddrs); // make it official.
+
+ /* Index all of the new email addresses (they've already been sanitized) */
+ for (i=0; i<num_tokens(usbuf.emailaddrs, '|'); ++i) {
+ extract_token(buf, usbuf.emailaddrs, i, '|', sizeof buf);
+ CtdlDirectoryAddUser(buf, requested_user);
+ }
+
+ CtdlPutUserLock(&usbuf);
+}
+
+
+/*
+ * Auto-generate an Internet email address for a user account
+ */
+void AutoGenerateEmailAddressForUser(struct ctdluser *user)
+{
+ char synthetic_email_addr[1024];
+ int i, j;
+ int u = 0;
+
+ for (i=0; u==0; ++i) {
+ if (i == 0) {
+ // first try just converting the user name to lowercase and replacing spaces with underscores
+ snprintf(synthetic_email_addr, sizeof synthetic_email_addr, "%s@%s", user->fullname, CtdlGetConfigStr("c_fqdn"));
+ for (j=0; ((synthetic_email_addr[j] != '\0')&&(synthetic_email_addr[j] != '@')); j++) {
+ synthetic_email_addr[j] = tolower(synthetic_email_addr[j]);
+ if (!isalnum(synthetic_email_addr[j])) {
+ synthetic_email_addr[j] = '_';
+ }
+ }
+ }
+ else if (i == 1) {
+ // then try 'ctdl' followed by the user number
+ snprintf(synthetic_email_addr, sizeof synthetic_email_addr, "ctdl%08lx@%s", user->usernum, CtdlGetConfigStr("c_fqdn"));
+ }
+ else if (i > 1) {
+ // oof. just keep trying other numbers until we find one
+ snprintf(synthetic_email_addr, sizeof synthetic_email_addr, "ctdl%08x@%s", i, CtdlGetConfigStr("c_fqdn"));
+ }
+ u = CtdlDirectoryLookup(NULL, synthetic_email_addr, 0);
+ syslog(LOG_DEBUG, "user_ops: address <%s> lookup returned <%d>", synthetic_email_addr, u);
+ }
+
+ CtdlSetEmailAddressesForUser(user->fullname, synthetic_email_addr);
+ strncpy(CC->user.emailaddrs, synthetic_email_addr, sizeof(user->emailaddrs));
+ syslog(LOG_DEBUG, "user_ops: auto-generated email address <%s> for <%s>", synthetic_email_addr, user->fullname);
+}
projects / citadel.git / blobdiff