/*
- * $Id$
- *
* This file contains functions which handle the mapping of Internet addresses
* to users on the Citadel system.
*/
-#ifdef DLL_EXPORT
-#define IN_LIBCIT
-#endif
-
#include "sysdep.h"
#include <stdlib.h>
#include <unistd.h>
#include <sys/wait.h>
#include <string.h>
#include <limits.h>
+#include <libcitadel.h>
#include "citadel.h"
#include "server.h"
-#include "serv_extensions.h"
#include "sysdep_decls.h"
#include "citserver.h"
#include "support.h"
#include "config.h"
-#include "tools.h"
#include "msgbase.h"
#include "internet_addressing.h"
#include "user_ops.h"
#include "parsedate.h"
#include "database.h"
+#include "ctdl_module.h"
#ifndef HAVE_SNPRINTF
#include "snprintf.h"
#endif
+#ifdef HAVE_ICONV
+#include <iconv.h>
+
+#if 0
+/* This is the non-define version in case of s.b. needing to debug */
+inline void FindNextEnd (char *bptr, char *end)
+{
+ /* Find the next ?Q? */
+ end = strchr(bptr + 2, '?');
+ if (end == NULL) return NULL;
+ if (((*(end + 1) == 'B') || (*(end + 1) == 'Q')) &&
+ (*(end + 2) == '?')) {
+ /* skip on to the end of the cluster, the next ?= */
+ end = strstr(end + 3, "?=");
+ }
+ else
+ /* sort of half valid encoding, try to find an end. */
+ end = strstr(bptr, "?=");
+}
+#endif
+
+#define FindNextEnd(bptr, end) { \
+ end = strchr(bptr + 2, '?'); \
+ if (end != NULL) { \
+ if (((*(end + 1) == 'B') || (*(end + 1) == 'Q')) && (*(end + 2) == '?')) { \
+ end = strstr(end + 3, "?="); \
+ } else end = strstr(bptr, "?="); \
+ } \
+}
+
+/*
+ * Handle subjects with RFC2047 encoding such as:
+ * =?koi8-r?B?78bP0s3Mxc7JxSDXz9rE1dvO2c3JINvB0sHNySDP?=
+ */
+void utf8ify_rfc822_string(char *buf) {
+ char *start, *end, *next, *nextend, *ptr;
+ char newbuf[1024];
+ char charset[128];
+ 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 */
+ 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.
+ */
+ 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.
+ }
+ }
+ if (illegal_non_rfc2047_encoding) {
+ const char *default_header_charset = "iso-8859-1";
+ if ( (strcasecmp(default_header_charset, "UTF-8")) && (strcasecmp(default_header_charset, "us-ascii")) ) {
+ ctdl_iconv_open("UTF-8", default_header_charset, &ic);
+ if (ic != (iconv_t)(-1) ) {
+ ibuf = malloc(1024);
+ isav = ibuf;
+ safestrncpy(ibuf, buf, 1024);
+ ibuflen = strlen(ibuf);
+ obuflen = 1024;
+ obuf = (char *) malloc(obuflen);
+ osav = obuf;
+ iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
+ osav[1024-obuflen] = 0;
+ strcpy(buf, osav);
+ free(osav);
+ iconv_close(ic);
+ free(isav);
+ }
+ }
+ }
+
+ /* pre evaluate the first pair */
+ nextend = end = NULL;
+ len = strlen(buf);
+ start = strstr(buf, "=?");
+ if (start != NULL)
+ FindNextEnd (start, end);
+
+ while ((start != NULL) && (end != NULL))
+ {
+ next = strstr(end, "=?");
+ if (next != NULL)
+ FindNextEnd(next, nextend);
+ if (nextend == NULL)
+ next = NULL;
+
+ /* did we find two partitions */
+ if ((next != NULL) &&
+ ((next - end) > 2))
+ {
+ ptr = end + 2;
+ while ((ptr < next) &&
+ (isspace(*ptr) ||
+ (*ptr == '\r') ||
+ (*ptr == '\n') ||
+ (*ptr == '\t')))
+ ptr ++;
+ /* did we find a gab just filled with blanks? */
+ if (ptr == next)
+ {
+ memmove (end + 2,
+ next,
+ len - (next - start));
+
+ /* now terminate the gab at the end */
+ delta = (next - end) - 2;
+ len -= delta;
+ buf[len] = '\0';
+
+ /* move next to its new location. */
+ next -= delta;
+ nextend -= delta;
+ }
+ }
+ /* our next-pair is our new first pair now. */
+ start = next;
+ end = nextend;
+ }
+
+ /* Now we handle foreign character sets properly encoded
+ * in RFC2047 format.
+ */
+ start = strstr(buf, "=?");
+ FindNextEnd((start != NULL)? start : buf, end);
+ 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 */
+ ibuflen = CtdlDecodeBase64(ibuf, istr, strlen(istr));
+ }
+ else if (!strcasecmp(encoding, "Q")) { /**< quoted-printable */
+ size_t len;
+ long pos;
+
+ len = strlen(istr);
+ pos = 0;
+ while (pos < len)
+ {
+ if (istr[pos] == '_') istr[pos] = ' ';
+ pos++;
+ }
+
+ ibuflen = CtdlDecodeQuotedPrintable(ibuf, istr, len);
+ }
+ else {
+ strcpy(ibuf, istr); /**< unknown encoding */
+ ibuflen = strlen(istr);
+ }
+
+ ctdl_iconv_open("UTF-8", charset, &ic);
+ if (ic != (iconv_t)(-1) ) {
+ obuflen = 1024;
+ obuf = (char *) malloc(obuflen);
+ osav = obuf;
+ iconv(ic, &ibuf, &ibuflen, &obuf, &obuflen);
+ osav[1024-obuflen] = 0;
+
+ end = start;
+ end++;
+ strcpy(start, "");
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ strcpy(end, &end[1]);
+
+ snprintf(newbuf, sizeof newbuf, "%s%s%s", buf, osav, end);
+ strcpy(buf, newbuf);
+ free(osav);
+ iconv_close(ic);
+ }
+ else {
+ end = start;
+ end++;
+ strcpy(start, "");
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ remove_token(end, 0, '?');
+ strcpy(end, &end[1]);
+
+ snprintf(newbuf, sizeof newbuf, "%s(unreadable)%s", buf, end);
+ strcpy(buf, newbuf);
+ }
+
+ free(isav);
+
+ /*
+ * Since spammers will go to all sorts of absurd lengths to get their
+ * messages through, there are LOTS of corrupt headers out there.
+ * So, prevent a really badly formed RFC2047 header from throwing
+ * this function into an infinite loop.
+ */
+ ++passes;
+ if (passes > 20) return;
+
+ start = strstr(buf, "=?");
+ FindNextEnd((start != NULL)? start : buf, end);
+ }
+
+}
+#else
+inline void utf8ify_rfc822_string(char *a){};
+
+#endif
+
+
+
struct trynamebuf {
char buffer1[SIZ];
char buffer2[SIZ];
int CtdlHostAlias(char *fqdn) {
int config_lines;
int i;
- char buf[SIZ];
- char host[SIZ], type[SIZ];
+ char buf[256];
+ char host[256], type[256];
+ int found = 0;
if (fqdn == NULL) return(hostalias_nomatch);
- if (strlen(fqdn) == 0) 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);
config_lines = num_tokens(inetcfg, '\n');
for (i=0; i<config_lines; ++i) {
- extract_token(buf, inetcfg, i, '\n');
- extract_token(host, buf, 0, '|');
- extract_token(type, buf, 1, '|');
+ extract_token(buf, inetcfg, i, '\n', sizeof buf);
+ extract_token(host, buf, 0, '|', sizeof host);
+ extract_token(type, buf, 1, '|', sizeof type);
- if ( (!strcasecmp(type, "localhost"))
- && (!strcasecmp(fqdn, host)))
- return(hostalias_localhost);
+ found = 0;
- if ( (!strcasecmp(type, "gatewaydomain"))
- && (!strcasecmp(&fqdn[strlen(fqdn)-strlen(host)], host)))
- return(hostalias_gatewaydomain);
+ /* Process these in a specific order, in case there are multiple matches.
+ * We want directory to override masq, for example.
+ */
- if ( (!strcasecmp(type, "directory"))
- && (!strcasecmp(&fqdn[strlen(fqdn)-strlen(host)], host)))
- return(hostalias_directory);
+ if ( (!strcasecmp(type, "masqdomain")) && (!strcasecmp(fqdn, host))) {
+ found = hostalias_masq;
+ }
+ if ( (!strcasecmp(type, "localhost")) && (!strcasecmp(fqdn, host))) {
+ found = hostalias_localhost;
+ }
+ if ( (!strcasecmp(type, "directory")) && (!strcasecmp(fqdn, host))) {
+ found = hostalias_directory;
+ }
+ if (found) return(found);
}
return(hostalias_nomatch);
*
* FIXME ... this needs to be updated to handle aliases.
*/
-int fuzzy_match(struct usersupp *us, char *matchstring) {
+int fuzzy_match(struct ctdluser *us, char *matchstring) {
int a;
+ long len;
if ( (!strncasecmp(matchstring, "cit", 3))
&& (atol(&matchstring[3]) == us->usernum)) {
return 0;
}
-
- for (a=0; a<strlen(us->fullname); ++a) {
+ len = strlen(matchstring);
+ for (a=0; !IsEmptyStr(&us->fullname[a]); ++a) {
if (!strncasecmp(&us->fullname[a],
- matchstring, strlen(matchstring))) {
+ matchstring, len)) {
return 0;
}
}
/*
* Unfold a multi-line field into a single line, removing multi-whitespaces
*/
-void unfold_rfc822_field(char *field) {
- int i;
+void unfold_rfc822_field(char **field, char **FieldEnd)
+{
int quote = 0;
+ char *pField = *field;
+ char *sField;
+ char *pFieldEnd = *FieldEnd;
+
+ while (isspace(*pField))
+ pField++;
+ /* remove leading/trailing whitespace */
+ ;
- striplt(field); /* remove leading/trailing whitespace */
+ while (isspace(*pFieldEnd))
+ pFieldEnd --;
+ *FieldEnd = pFieldEnd;
/* convert non-space whitespace to spaces, and remove double blanks */
- for (i=0; i<strlen(field); ++i) {
- if (field[i]=='\"') quote = 1 - quote;
- if (!quote) {
- if (isspace(field[i])) field[i] = ' ';
- while (isspace(field[i]) && isspace(field[i+1])) {
- strcpy(&field[i+1], &field[i+2]);
+ for (sField = *field = pField;
+ sField < pFieldEnd;
+ pField++, sField++)
+ {
+ if ((*sField=='\r') || (*sField=='\n')) {
+ sField++;
+ if (*sField == '\n')
+ sField++;
+ *pField = *sField;
+ }
+ else {
+ if (*sField=='\"') quote = 1 - quote;
+ if (!quote) {
+ if (isspace(*sField))
+ {
+ *pField = ' ';
+ pField++;
+ sField++;
+
+ while ((sField < pFieldEnd) &&
+ isspace(*sField))
+ sField++;
+ *pField = *sField;
+ }
+ else *pField = *sField;
}
+ else *pField = *sField;
}
}
+ *pField = '\0';
+ *FieldEnd = pField - 1;
}
strcpy(node, config.c_fqdn);
strcpy(name, "");
+ if (rfc822 == NULL) return;
+
/* extract full name - first, it's From minus <userid> */
strcpy(name, rfc822);
stripout(name, '<', '>');
/* strip anything to the left of a bang */
- while ((strlen(name) > 0) && (haschar(name, '!') > 0))
+ while ((!IsEmptyStr(name)) && (haschar(name, '!') > 0))
strcpy(name, &name[1]);
/* and anything to the right of a @ or % */
/* but if there are a set of quotes, that supersedes everything */
if (haschar(rfc822, 34) == 2) {
strcpy(name, rfc822);
- while ((strlen(name) > 0) && (name[0] != 34)) {
+ while ((!IsEmptyStr(name)) && (name[0] != 34)) {
strcpy(&name[0], &name[1]);
}
strcpy(&name[0], &name[1]);
}
/* strip anything to the left of a bang */
- while ((strlen(user) > 0) && (haschar(user, '!') > 0))
+ while ((!IsEmptyStr(user)) && (haschar(user, '!') > 0))
strcpy(user, &user[1]);
/* and anything to the right of a @ or % */
else {
/* strip anything to the left of a @ */
- while ((strlen(node) > 0) && (haschar(node, '@') > 0))
+ while ((!IsEmptyStr(node)) && (haschar(node, '@') > 0))
strcpy(node, &node[1]);
/* strip anything to the left of a % */
- while ((strlen(node) > 0) && (haschar(node, '%') > 0))
+ while ((!IsEmptyStr(node)) && (haschar(node, '%') > 0))
strcpy(node, &node[1]);
/* reduce multiple system bang paths to node!user */
- while ((strlen(node) > 0) && (haschar(node, '!') > 1))
+ while ((!IsEmptyStr(node)) && (haschar(node, '!') > 1))
strcpy(node, &node[1]);
/* now get rid of the user portion of a node!user string */
striplt(user);
striplt(node);
striplt(name);
+
+ /* If we processed a string that had the address in angle brackets
+ * but no name outside the brackets, we now have an empty name. In
+ * this case, use the user portion of the address as the name.
+ */
+ if ((IsEmptyStr(name)) && (!IsEmptyStr(user))) {
+ strcpy(name, user);
+ }
}
* structure, implying that the source field should be removed from the
* message text.
*/
-int convert_field(struct CtdlMessage *msg, int beg, int end) {
- char *rfc822;
- char *key, *value;
+int convert_field(struct CtdlMessage *msg, const char *beg, const char *end) {
+ char *key, *value, *valueend;
+ long len;
+ const char *pos;
int i;
- int colonpos = (-1);
+ const char *colonpos = NULL;
int processed = 0;
char buf[SIZ];
char user[1024];
char name[1024];
char addr[1024];
time_t parsed_date;
+ long valuelen;
- rfc822 = msg->cm_fields['M']; /* M field contains rfc822 text */
- for (i = end; i >= beg; --i) {
- if (rfc822[i] == ':') colonpos = i;
+ for (pos = end; pos >= beg; pos--) {
+ if (*pos == ':') colonpos = pos;
}
- if (colonpos < 0) return(0); /* no colon? not a valid header line */
+ if (colonpos == NULL) return(0); /* no colon? not a valid header line */
- key = mallok((end - beg) + 2);
- safestrncpy(key, &rfc822[beg], (end-beg)+1);
- key[colonpos - beg] = 0;
+ len = end - beg;
+ key = malloc(len + 2);
+ memcpy(key, beg, len + 1);
+ key[len] = '\0';
+ valueend = key + len;
+ * ( key + (colonpos - beg) ) = '\0';
value = &key[(colonpos - beg) + 1];
- unfold_rfc822_field(value);
+/* printf("Header: [%s]\nValue: [%s]\n", key, value); */
+ unfold_rfc822_field(&value, &valueend);
+ valuelen = valueend - value + 1;
+/* printf("UnfoldedValue: [%s]\n", value); */
/*
* Here's the big rfc822-to-citadel loop.
if (parsed_date < 0L) parsed_date = time(NULL);
snprintf(buf, sizeof buf, "%ld", (long)parsed_date );
if (msg->cm_fields['T'] == NULL)
- msg->cm_fields['T'] = strdoop(buf);
+ msg->cm_fields['T'] = strdup(buf);
processed = 1;
}
else if (!strcasecmp(key, "From")) {
process_rfc822_addr(value, user, node, name);
- lprintf(9, "Converted to <%s@%s> (%s)\n", 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['A'] == NULL)
- msg->cm_fields['A'] = strdoop(name);
+ msg->cm_fields['A'] = strdup(name);
processed = 1;
if (msg->cm_fields['F'] == NULL)
- msg->cm_fields['F'] = strdoop(addr);
+ msg->cm_fields['F'] = strdup(addr);
processed = 1;
}
else if (!strcasecmp(key, "Subject")) {
if (msg->cm_fields['U'] == NULL)
- msg->cm_fields['U'] = strdoop(value);
+ msg->cm_fields['U'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "List-ID")) {
+ if (msg->cm_fields['L'] == NULL)
+ msg->cm_fields['L'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "To")) {
+ if (msg->cm_fields['R'] == NULL)
+ msg->cm_fields['R'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "CC")) {
+ if (msg->cm_fields['Y'] == NULL)
+ msg->cm_fields['Y'] = strndup(value, valuelen);
processed = 1;
}
else if (!strcasecmp(key, "Message-ID")) {
if (msg->cm_fields['I'] != NULL) {
- lprintf(5, "duplicate message id\n");
+ syslog(LOG_WARNING, "duplicate message id\n");
}
if (msg->cm_fields['I'] == NULL) {
- msg->cm_fields['I'] = strdoop(value);
+ msg->cm_fields['I'] = strndup(value, valuelen);
/* Strip angle brackets */
while (haschar(msg->cm_fields['I'], '<') > 0) {
processed = 1;
}
+ else if (!strcasecmp(key, "Return-Path")) {
+ if (msg->cm_fields['P'] == NULL)
+ msg->cm_fields['P'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "Envelope-To")) {
+ if (msg->cm_fields['V'] == NULL)
+ msg->cm_fields['V'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "References")) {
+ if (msg->cm_fields['W'] != NULL) {
+ free(msg->cm_fields['W']);
+ }
+ msg->cm_fields['W'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "Reply-To")) {
+ if (msg->cm_fields['K'] != NULL) {
+ free(msg->cm_fields['K']);
+ }
+ msg->cm_fields['K'] = strndup(value, valuelen);
+ processed = 1;
+ }
+
+ else if (!strcasecmp(key, "In-reply-to")) {
+ if (msg->cm_fields['W'] == NULL) { /* References: supersedes In-reply-to: */
+ msg->cm_fields['W'] = strndup(value, valuelen);
+ }
+ processed = 1;
+ }
+
+
+
/* Clean up and move on. */
- phree(key); /* Don't free 'value', it's actually the same buffer */
+ free(key); /* Don't free 'value', it's actually the same buffer */
return(processed);
}
+/*
+ * Convert RFC822 references format (References) to Citadel references format (Weferences)
+ */
+void convert_references_to_wefewences(char *str) {
+ int bracket_nesting = 0;
+ char *ptr = str;
+ char *moveptr = NULL;
+ char ch;
+
+ while(*ptr) {
+ ch = *ptr;
+ if (ch == '>') {
+ --bracket_nesting;
+ if (bracket_nesting < 0) bracket_nesting = 0;
+ }
+ if ((ch == '>') && (bracket_nesting == 0) && (*(ptr+1)) && (ptr>str) ) {
+ *ptr = '|';
+ ++ptr;
+ }
+ else if (bracket_nesting > 0) {
+ ++ptr;
+ }
+ else {
+ moveptr = ptr;
+ while (*moveptr) {
+ *moveptr = *(moveptr+1);
+ ++moveptr;
+ }
+ }
+ if (ch == '<') ++bracket_nesting;
+ }
+
+}
+
+
/*
* Convert an RFC822 message (headers + body) to a CtdlMessage structure.
* NOTE: the supplied buffer becomes part of the CtdlMessage structure, and
* again.
*/
struct CtdlMessage *convert_internet_message(char *rfc822) {
+ StrBuf *RFCBuf = NewStrBufPlain(rfc822, -1);
+ free (rfc822);
+ return convert_internet_message_buf(&RFCBuf);
+}
+
+
+struct CtdlMessage *convert_internet_message_buf(StrBuf **rfc822)
+{
struct CtdlMessage *msg;
- int pos, beg, end, msglen;
- int done;
+ const char *pos, *beg, *end, *totalend;
+ int done, alldone = 0;
char buf[SIZ];
int converted;
+ StrBuf *OtherHeaders;
- msg = mallok(sizeof(struct CtdlMessage));
+ msg = malloc(sizeof(struct CtdlMessage));
if (msg == NULL) return msg;
memset(msg, 0, sizeof(struct CtdlMessage));
msg->cm_magic = CTDLMESSAGE_MAGIC; /* self check */
msg->cm_anon_type = 0; /* never anonymous */
msg->cm_format_type = FMT_RFC822; /* internet message */
- msg->cm_fields['M'] = rfc822;
- lprintf(9, "Unconverted RFC822 message length = %ld\n", (long)strlen(rfc822));
- pos = 0;
+ pos = ChrPtr(*rfc822);
+ totalend = pos + StrLength(*rfc822);
done = 0;
+ OtherHeaders = NewStrBufPlain(NULL, StrLength(*rfc822));
- while (!done) {
+ while (!alldone) {
/* Locate beginning and end of field, keeping in mind that
* some fields might be multiline
*/
- beg = pos;
- end = (-1);
+ end = beg = pos;
- msglen = strlen(rfc822);
- while ( (end < 0) && (done == 0) ) {
+ while ((end < totalend) &&
+ (end == beg) &&
+ (done == 0) )
+ {
- if ((rfc822[pos]=='\n')
- && (!isspace(rfc822[pos+1]))) {
+ if ( (*pos=='\n') && ((*(pos+1))!=0x20) && ((*(pos+1))!=0x09) )
+ {
end = pos;
}
- /* done with headers? (commented out; see below)
- if ( ((rfc822[pos]=='\n')
- ||(rfc822[pos]=='\r') )
- && ( (rfc822[pos+1]=='\n')
- ||(rfc822[pos+1]=='\r')) ) {
- end = pos;
- done = 1;
+ /* done with headers? */
+ if ((*pos=='\n') &&
+ ( (*(pos+1)=='\n') ||
+ (*(pos+1)=='\r')) )
+ {
+ alldone = 1;
}
- */
- /* done with headers? (try this way instead) */
- if ( (rfc822[pos]=='\n')
- && ( (rfc822[pos+1]=='\n')
- ||(rfc822[pos+1]=='\r')) ) {
- end = pos;
- done = 1;
- }
-
- if (pos >= (msglen-1) ) {
+ if (pos >= (totalend - 1) )
+ {
end = pos;
done = 1;
}
converted = convert_field(msg, beg, end);
/* Strip the field out of the RFC822 header if we used it */
- if (converted) {
- strcpy(&rfc822[beg], &rfc822[pos]);
- pos = beg;
+ if (!converted) {
+ StrBufAppendBufPlain(OtherHeaders, beg, end - beg, 0);
+ StrBufAppendBufPlain(OtherHeaders, HKEY("\n"), 0);
}
/* If we've hit the end of the message, bail out */
- if (pos > strlen(rfc822)) done = 1;
+ if (pos >= totalend)
+ alldone = 1;
}
+ StrBufAppendBufPlain(OtherHeaders, HKEY("\n"), 0);
+ if (pos < totalend)
+ StrBufAppendBufPlain(OtherHeaders, pos, totalend - pos, 0);
+ FreeStrBuf(rfc822);
+ msg->cm_fields['M'] = SmashStrBuf(&OtherHeaders);
/* Follow-up sanity checks... */
/* If there's no timestamp on this message, set it to now. */
if (msg->cm_fields['T'] == NULL) {
snprintf(buf, sizeof buf, "%ld", (long)time(NULL));
- msg->cm_fields['T'] = strdoop(buf);
+ msg->cm_fields['T'] = strdup(buf);
+ }
+
+ /* 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['W'] != NULL) {
+ convert_references_to_wefewences(msg->cm_fields['W']);
}
- lprintf(9, "RFC822 length remaining after conversion = %ld\n",
- (long)strlen(rfc822));
return msg;
}
* The caller is responsible for freeing the returned buffer. If the requested
* field is not present, or anything else goes wrong, it returns NULL.
*/
-char *rfc822_fetch_field(char *rfc822, char *fieldname) {
- int pos = 0;
- int beg, end;
- int done = 0;
- int colonpos, i;
+char *rfc822_fetch_field(const char *rfc822, const char *fieldname) {
char *fieldbuf = NULL;
+ const char *end_of_headers;
+ const char *field_start;
+ const char *ptr;
+ char *cont;
+ char fieldhdr[SIZ];
/* Should never happen, but sometimes we get stupid */
if (rfc822 == NULL) return(NULL);
if (fieldname == NULL) return(NULL);
- while (!done) {
-
- /* Locate beginning and end of field, keeping in mind that
- * some fields might be multiline
- */
- beg = pos;
- end = (-1);
- for (pos=beg; ((pos<=strlen(rfc822))&&(end<0)); ++pos) {
- if ((rfc822[pos]=='\n')
- && (!isspace(rfc822[pos+1]))) {
- end = pos;
- }
- if ( (rfc822[pos]=='\n') /* done w. headers? */
- && ( (rfc822[pos+1]=='\n')
- ||(rfc822[pos+1]=='\r'))) {
- end = pos;
- done = 1;
- }
+ snprintf(fieldhdr, sizeof fieldhdr, "%s:", fieldname);
- }
+ /* Locate the end of the headers, so we don't run past that point */
+ end_of_headers = cbmstrcasestr(rfc822, "\n\r\n");
+ if (end_of_headers == NULL) {
+ end_of_headers = cbmstrcasestr(rfc822, "\n\n");
+ }
+ if (end_of_headers == NULL) return (NULL);
+
+ field_start = cbmstrcasestr(rfc822, fieldhdr);
+ if (field_start == NULL) return(NULL);
+ if (field_start > end_of_headers) return(NULL);
+
+ fieldbuf = malloc(SIZ);
+ strcpy(fieldbuf, "");
+
+ ptr = field_start;
+ ptr = cmemreadline(ptr, fieldbuf, SIZ-strlen(fieldbuf) );
+ while ( (isspace(ptr[0])) && (ptr < end_of_headers) ) {
+ strcat(fieldbuf, " ");
+ cont = &fieldbuf[strlen(fieldbuf)];
+ ptr = cmemreadline(ptr, cont, SIZ-strlen(fieldbuf) );
+ striplt(cont);
+ }
- /* At this point we have a field. Is it The One? */
- if (end > beg) {
- fieldbuf = mallok((end-beg)+3);
- if (fieldbuf == NULL) return(NULL);
- safestrncpy(fieldbuf, &rfc822[beg], (end-beg)+1);
- unfold_rfc822_field(fieldbuf);
- colonpos = (-1);
- for (i = strlen(fieldbuf); i >= 0; --i) {
- if (fieldbuf[i] == ':') colonpos = i;
- }
- if (colonpos > 0) {
- fieldbuf[colonpos] = 0;
- if (!strcasecmp(fieldbuf, fieldname)) {
- strcpy(fieldbuf, &fieldbuf[colonpos+1]);
- striplt(fieldbuf);
- return(fieldbuf);
- }
- }
- phree(fieldbuf);
- }
+ strcpy(fieldbuf, &fieldbuf[strlen(fieldhdr)]);
+ striplt(fieldbuf);
- /* If we've hit the end of the message, bail out */
- if (pos > strlen(rfc822)) done = 1;
- }
- return(NULL);
+ return(fieldbuf);
}
int i;
int keylen = 0;
- for (i=0; i<strlen(addr); ++i) {
+ for (i=0; !IsEmptyStr(&addr[i]); ++i) {
if (!isspace(addr[i])) {
key[keylen++] = tolower(addr[i]);
}
}
key[keylen++] = 0;
- lprintf(9, "Directory key is <%s>\n", key);
+ syslog(LOG_DEBUG, "Directory key is <%s>\n", key);
}
/* Return nonzero if the supplied address is in a domain we keep in
* the directory
*/
-int IsDirectory(char *addr) {
- char domain[SIZ];
+int IsDirectory(char *addr, int allow_masq_domains) {
+ char domain[256];
int h;
- extract_token(domain, addr, 1, '@');
+ extract_token(domain, addr, 1, '@', sizeof domain);
striplt(domain);
h = CtdlHostAlias(domain);
- lprintf(9, "IsDirectory(%s)\n", domain);
+ if ( (h == hostalias_masq) && allow_masq_domains)
+ return(1);
+
if ( (h == hostalias_localhost) || (h == hostalias_directory) ) {
- lprintf(9, " ...yes\n");
return(1);
}
else {
- lprintf(9, " ...no\n");
return(0);
}
}
/*
* Add an Internet e-mail address to the directory for a user
*/
-void CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr) {
+int CtdlDirectoryAddUser(char *internet_addr, char *citadel_addr) {
char key[SIZ];
- lprintf(9, "Dir: %s --> %s\n",
- internet_addr, citadel_addr);
- if (IsDirectory(internet_addr) == 0) return;
-
+ if (IsDirectory(internet_addr, 0) == 0)
+ return 0;
+ syslog(LOG_DEBUG, "Create directory entry: %s --> %s\n", internet_addr, citadel_addr);
directory_key(key, internet_addr);
-
- cdb_store(CDB_DIRECTORY, key, strlen(key),
- citadel_addr, strlen(citadel_addr)+1 );
+ cdb_store(CDB_DIRECTORY, key, strlen(key), citadel_addr, strlen(citadel_addr)+1 );
+ return 1;
}
* (NOTE: we don't actually use or need the citadel_addr variable; it's merely
* here because the callback API expects to be able to send it.)
*/
-void CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr) {
+int CtdlDirectoryDelUser(char *internet_addr, char *citadel_addr) {
char key[SIZ];
+ syslog(LOG_DEBUG, "Delete directory entry: %s --> %s\n", internet_addr, citadel_addr);
directory_key(key, internet_addr);
- cdb_delete(CDB_DIRECTORY, key, strlen(key) );
+ return cdb_delete(CDB_DIRECTORY, key, strlen(key) ) == 0;
}
* On success: returns 0, and Citadel address stored in 'target'
* On failure: returns nonzero
*/
-int CtdlDirectoryLookup(char *target, char *internet_addr) {
+int CtdlDirectoryLookup(char *target, char *internet_addr, size_t targbuflen) {
struct cdbdata *cdbrec;
char key[SIZ];
/* Dump it in there unchanged, just for kicks */
- strcpy(target, internet_addr);
+ safestrncpy(target, internet_addr, targbuflen);
/* Only do lookups for addresses with hostnames in them */
if (num_tokens(internet_addr, '@') != 2) return(-1);
/* Only do lookups for domains in the directory */
- if (IsDirectory(internet_addr) == 0) return(-1);
+ if (IsDirectory(internet_addr, 0) == 0) return(-1);
directory_key(key, internet_addr);
cdbrec = cdb_fetch(CDB_DIRECTORY, key, strlen(key) );
if (cdbrec != NULL) {
- safestrncpy(target, cdbrec->ptr, SIZ);
+ safestrncpy(target, cdbrec->ptr, targbuflen);
cdb_free(cdbrec);
return(0);
}
return(-1);
}
+
+
+/*
+ * Harvest any email addresses that someone might want to have in their
+ * "collected addresses" book.
+ */
+char *harvest_collected_addresses(struct CtdlMessage *msg) {
+ char *coll = NULL;
+ char addr[256];
+ char user[256], node[256], name[256];
+ int is_harvestable;
+ int i, j, h;
+ int field = 0;
+
+ if (msg == NULL) return(NULL);
+
+ is_harvestable = 1;
+ strcpy(addr, "");
+ if (msg->cm_fields['A'] != NULL) {
+ strcat(addr, msg->cm_fields['A']);
+ }
+ if (msg->cm_fields['F'] != NULL) {
+ strcat(addr, " <");
+ strcat(addr, msg->cm_fields['F']);
+ strcat(addr, ">");
+ if (IsDirectory(msg->cm_fields['F'], 0)) {
+ is_harvestable = 0;
+ }
+ }
+
+ if (is_harvestable) {
+ coll = strdup(addr);
+ }
+ else {
+ coll = strdup("");
+ }
+
+ if (coll == NULL) return(NULL);
+
+ /* Scan both the R (To) and Y (CC) fields */
+ for (i = 0; i < 2; ++i) {
+ if (i == 0) field = 'R' ;
+ if (i == 1) field = 'Y' ;
+
+ if (msg->cm_fields[field] != NULL) {
+ 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) ) {
+ coll = realloc(coll, strlen(coll) + strlen(addr) + 4);
+ if (coll == NULL) return(NULL);
+ if (!IsEmptyStr(coll)) {
+ strcat(coll, ",");
+ }
+ striplt(addr);
+ strcat(coll, addr);
+ }
+ }
+ }
+ }
+
+ if (IsEmptyStr(coll)) {
+ free(coll);
+ return(NULL);
+ }
+ return(coll);
+}