* This file contains functions which handle the mapping of Internet addresses
* to users on the Citadel system.
*
- * Copyright (c) 1987-2017 by the citadel.org team
+ * Copyright (c) 1987-2020 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.
* GNU General Public License for more details.
*/
-
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
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 (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);
len = strlen(istr);
pos = 0;
- while (pos < len)
- {
+ while (pos < len) {
if (istr[pos] == '_') istr[pos] = ' ';
pos++;
}
-
ibuflen = CtdlDecodeQuotedPrintable(ibuf, istr, len);
}
else {
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, CtdlGetConfigStr("c_fqdn"))) return(hostalias_localhost);
- if (!strcasecmp(fqdn, CtdlGetConfigStr("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);
}
/* If the last item in a list of recipients was truncated to a partial address,
- * remove it completely in order to avoid choking libSieve
+ * remove it completely in order to avoid choking library functions.
*/
void sanitize_truncated_recipient(char *str)
{
* 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)
-{
+void remove_any_whitespace_to_the_left_or_right_of_at_symbol(char *name) {
unsigned int i;
for (i = 0; i < strlen(name); ++i) {
*/
int alias(char *name)
{ /* process alias and routing info for mail */
- FILE *fp;
- int a, i;
- char aaa[SIZ], bbb[SIZ];
- char *ignetcfg = NULL;
- char *ignetmap = NULL;
+ int a;
+ char aaa[SIZ];
int at = 0;
char node[64];
- char testnode[64];
- char buf[SIZ];
char original_name[256];
safestrncpy(original_name, name, sizeof original_name);
remove_any_whitespace_to_the_left_or_right_of_at_symbol(name);
stripallbut(name, '<', '>');
- fp = fopen(file_mail_aliases, "r");
- if (fp == NULL) {
- fp = fopen("/dev/null", "r");
- }
- if (fp == NULL) {
- return (MES_ERROR);
- }
- strcpy(aaa, "");
- strcpy(bbb, "");
- while (fgets(aaa, sizeof aaa, fp) != NULL) {
- while (isspace(name[0]))
- strcpy(name, &name[1]);
- aaa[strlen(aaa) - 1] = 0;
- strcpy(bbb, "");
- for (a = 0; aaa[a] != '\0'; ++a) {
- if (aaa[a] == ',') {
- strcpy(bbb, &aaa[a + 1]);
- aaa[a] = 0;
- break;
- }
- }
- if (!strcasecmp(name, aaa))
- strcpy(name, bbb);
- }
- fclose(fp);
-
- /* Hit the Global Address Book */
+ /* Hit the email address directory */
if (CtdlDirectoryLookup(aaa, name, sizeof aaa) == 0) {
strcpy(name, aaa);
}
return(MES_INTERNET);
}
- /* Otherwise we look in the IGnet maps for a valid Citadel node.
- * Try directly-connected nodes first...
- */
- ignetcfg = CtdlGetSysConfig(IGNETCFG);
- for (i=0; i<num_tokens(ignetcfg, '\n'); ++i) {
- extract_token(buf, ignetcfg, i, '\n', sizeof buf);
- extract_token(testnode, buf, 0, '|', sizeof testnode);
- if (!strcasecmp(node, testnode)) {
- free(ignetcfg);
- return(MES_IGNET);
- }
- }
- free(ignetcfg);
-
- /*
- * Then try nodes that are two or more hops away.
- */
- ignetmap = CtdlGetSysConfig(IGNETMAP);
- for (i=0; i<num_tokens(ignetmap, '\n'); ++i) {
- extract_token(buf, ignetmap, i, '\n', sizeof buf);
- extract_token(testnode, buf, 0, '|', sizeof testnode);
- if (!strcasecmp(node, testnode)) {
- free(ignetmap);
- return(MES_IGNET);
- }
- }
- free(ignetmap);
-
/* If we get to this point it's an invalid node name */
return (MES_ERROR);
}
*
* Caller needs to free the result using free_recipients()
*/
-recptypes *validate_recipients(const char *supplied_recipients,
- const char *RemoteIdentifier,
- int Flags) {
+recptypes *validate_recipients(const char *supplied_recipients, const char *RemoteIdentifier, int Flags) {
struct CitContext *CCC = CC;
recptypes *ret;
char *recipients = NULL;
ret->errormsg = malloc(len);
ret->recp_local = malloc(len);
ret->recp_internet = malloc(len);
- ret->recp_ignet = malloc(len);
ret->recp_room = malloc(len);
ret->display_recp = malloc(len);
ret->recp_orgroom = malloc(len);
ret->errormsg[0] = 0;
ret->recp_local[0] = 0;
ret->recp_internet[0] = 0;
- ret->recp_ignet[0] = 0;
ret->recp_room[0] = 0;
ret->recp_orgroom[0] = 0;
ret->display_recp[0] = 0;
Flags,
0 /* 0 = not a reply */
);
- if (err)
- {
+ if (err) {
++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 or an attached
- * Citadel directory, the address is invalid. That's
+ * 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.
*/
strcat(ret->recp_internet, this_recp);
}
break;
- case MES_IGNET:
- ++ret->num_ignet;
- if (!IsEmptyStr(ret->recp_ignet)) {
- strcat(ret->recp_ignet, "|");
- }
- strcat(ret->recp_ignet, this_recp);
- break;
case MES_ERROR:
++ret->num_error;
invalid = 1;
}
free(org_recp);
- if ((ret->num_local + ret->num_internet + ret->num_ignet +
- ret->num_room + ret->num_error) == 0) {
+ if ( (ret->num_local + ret->num_internet + ret->num_room + ret->num_error) == 0) {
ret->num_error = (-1);
strcpy(ret->errormsg, "No recipients specified.");
}
- syslog(LOG_DEBUG, "internet_addressing: validate_recipients() = %d local, %d room, %d SMTP, %d IGnet, %d error",
- ret->num_local, ret->num_room, ret->num_internet, ret->num_ignet, ret->num_error
+ 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);
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_ignet != NULL) free(valid->recp_ignet);
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 ((*sField=='\r') || (*sField=='\n'))
{
- int Offset = 1;
- while (((*(sField + Offset) == '\r') ||
- (*(sField + Offset) == '\n') ||
- (isspace(*(sField + Offset)))) &&
- (sField + Offset < pFieldEnd))
- Offset ++;
- sField += Offset;
+ int offset = 1;
+ while ( ( (*(sField + offset) == '\r') || (*(sField + offset) == '\n' )) && (sField + offset < pFieldEnd) ) {
+ offset ++;
+ }
+ sField += offset;
*pField = *sField;
}
else {
}
-/* 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 {
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, "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 );
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);
}
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)) {
/*
* Helper function for CtdlRebuildDirectoryIndex()
- *
- * Call this function as a ForEachUser backend in order to queue up
- * user names, or call it with a null user to make it do the processing.
- * This allows us to maintain the list as a static instead of passing
- * pointers around.
*/
-void CtdlRebuildDirectoryIndex_backend(struct ctdluser *usbuf, void *data) {
-
- struct crdib {
- char name[64];
- char emails[512];
- };
+void CtdlRebuildDirectoryIndex_backend(char *username, void *data) {
- static struct crdib *e = NULL;
- static int num_e = 0;
- static int alloc_e = 0;
+ int j = 0;
+ struct ctdluser usbuf;
- /* this is the calling mode where we add a user */
-
- if (usbuf != NULL) {
- if (num_e >= alloc_e) {
- if (alloc_e == 0) {
- alloc_e = 100;
- e = malloc(sizeof(struct crdib) * alloc_e);
- }
- else {
- alloc_e *= 2;
- e = realloc(e, (sizeof(struct crdib) * alloc_e));
- }
- }
- strcpy(e[num_e].name, usbuf->fullname);
- strcpy(e[num_e].emails, usbuf->emailaddrs);
- ++num_e;
+ if (CtdlGetUser(&usbuf, username) != 0) {
return;
}
- /* this is the calling mode where we do the processing */
-
- int i, j;
- for (i=0; i<num_e; ++i) {
- if ( (!IsEmptyStr(e[i].name)) && (!IsEmptyStr(e[i].emails)) ) {
- for (j=0; j<num_tokens(e[i].emails, '|'); ++j) {
- char one_email[512];
- extract_token(one_email, e[i].emails, j, '|', sizeof one_email);
- CtdlDirectoryAddUser(one_email, e[i].name);
- }
+ 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);
}
}
- free(e);
- num_e = 0;
- alloc_e = 0;
- return;
}
syslog(LOG_INFO, "internet_addressing: rebuilding email address directory index");
cdb_trunc(CDB_DIRECTORY);
ForEachUser(CtdlRebuildDirectoryIndex_backend, NULL);
- CtdlRebuildDirectoryIndex_backend(NULL, 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);
+ }
+
+ 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