--- /dev/null
+/*
+ * Inbox handling rules
+ *
+ * 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.
+ *
+ * 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 <stdlib.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <ctype.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 <sys/wait.h>
+#include <string.h>
+#include <limits.h>
+#include <libcitadel.h>
+#include "citadel.h"
+#include "server.h"
+#include "citserver.h"
+#include "support.h"
+#include "config.h"
+#include "database.h"
+#include "msgbase.h"
+#include "internet_addressing.h"
+#include "ctdl_module.h"
+
+
+#if 0
+
+/*
+ * Callback function to redirect a message to a different folder
+ */
+int ctdl_redirect(void)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+ struct CtdlMessage *msg = NULL;
+ recptypes *valid = NULL;
+ char recp[256];
+
+ safestrncpy(recp, sieve2_getvalue_string(s, "address"), sizeof recp);
+
+ syslog(LOG_DEBUG, "Action is REDIRECT, recipient <%s>", recp);
+
+ valid = validate_recipients(recp, NULL, 0);
+ if (valid == NULL) {
+ syslog(LOG_WARNING, "REDIRECT failed: bad recipient <%s>", recp);
+ return SIEVE2_ERROR_BADARGS;
+ }
+ if (valid->num_error > 0) {
+ syslog(LOG_WARNING, "REDIRECT failed: bad recipient <%s>", recp);
+ free_recipients(valid);
+ return SIEVE2_ERROR_BADARGS;
+ }
+
+ msg = CtdlFetchMessage(cs->msgnum, 1, 1);
+ if (msg == NULL) {
+ syslog(LOG_WARNING, "REDIRECT failed: unable to fetch msg %ld", cs->msgnum);
+ free_recipients(valid);
+ return SIEVE2_ERROR_BADARGS;
+ }
+
+ CtdlSubmitMsg(msg, valid, NULL, 0);
+ cs->cancel_implicit_keep = 1;
+ free_recipients(valid);
+ CM_Free(msg);
+ return SIEVE2_OK;
+}
+
+
+/*
+ * Callback function to indicate that a message *will* be kept in the inbox
+ */
+int ctdl_keep(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+
+ syslog(LOG_DEBUG, "Action is KEEP");
+
+ cs->keep = 1;
+ cs->cancel_implicit_keep = 1;
+ return SIEVE2_OK;
+}
+
+
+/*
+ * Callback function to file a message into a different mailbox
+ */
+int ctdl_fileinto(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+ const char *dest_folder = sieve2_getvalue_string(s, "mailbox");
+ int c;
+ char foldername[256];
+ char original_room_name[ROOMNAMELEN];
+
+ syslog(LOG_DEBUG, "Action is FILEINTO, destination is <%s>", dest_folder);
+
+ /* FILEINTO 'INBOX' is the same thing as KEEP */
+ if ( (!strcasecmp(dest_folder, "INBOX")) || (!strcasecmp(dest_folder, MAILROOM)) ) {
+ cs->keep = 1;
+ cs->cancel_implicit_keep = 1;
+ return SIEVE2_OK;
+ }
+
+ /* Remember what room we came from */
+ safestrncpy(original_room_name, CC->room.QRname, sizeof original_room_name);
+
+ /* First try a mailbox name match (check personal mail folders first) */
+ snprintf(foldername, sizeof foldername, "%010ld.%s", cs->usernum, dest_folder);
+ c = CtdlGetRoom(&CC->room, foldername);
+
+ /* Then a regular room name match (public and private rooms) */
+ if (c != 0) {
+ safestrncpy(foldername, dest_folder, sizeof foldername);
+ c = CtdlGetRoom(&CC->room, foldername);
+ }
+
+ if (c != 0) {
+ syslog(LOG_WARNING, "FILEINTO failed: target <%s> does not exist", dest_folder);
+ return SIEVE2_ERROR_BADARGS;
+ }
+
+ /* Yes, we actually have to go there */
+ CtdlUserGoto(NULL, 0, 0, NULL, NULL, NULL, NULL);
+
+ c = CtdlSaveMsgPointersInRoom(NULL, &cs->msgnum, 1, 0, NULL, 0);
+
+ /* Go back to the room we came from */
+ if (strcasecmp(original_room_name, CC->room.QRname)) {
+ CtdlUserGoto(original_room_name, 0, 0, NULL, NULL, NULL, NULL);
+ }
+
+ if (c == 0) {
+ cs->cancel_implicit_keep = 1;
+ return SIEVE2_OK;
+ }
+ else {
+ return SIEVE2_ERROR_BADARGS;
+ }
+}
+
+
+/*
+ * Callback function to indicate that a message should be discarded.
+ */
+int ctdl_discard(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+
+ syslog(LOG_DEBUG, "Action is DISCARD");
+
+ /* Cancel the implicit keep. That's all there is to it. */
+ cs->cancel_implicit_keep = 1;
+ return SIEVE2_OK;
+}
+
+
+/*
+ * Callback function to indicate that a message should be rejected
+ */
+int ctdl_reject(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+ char *reject_text = NULL;
+
+ syslog(LOG_DEBUG, "Action is REJECT");
+
+ /* If we don't know who sent the message, do a DISCARD instead. */
+ if (IsEmptyStr(cs->sender)) {
+ syslog(LOG_INFO, "Unknown sender. Doing DISCARD instead of REJECT.");
+ return ctdl_discard(s, my);
+ }
+
+ /* Assemble the reject message. */
+ reject_text = malloc(strlen(sieve2_getvalue_string(s, "message")) + 1024);
+ if (reject_text == NULL) {
+ return SIEVE2_ERROR_FAIL;
+ }
+
+ sprintf(reject_text,
+ "Content-type: text/plain\n"
+ "\n"
+ "The message was refused by the recipient's mail filtering program.\n"
+ "The reason given was as follows:\n"
+ "\n"
+ "%s\n"
+ "\n"
+ ,
+ sieve2_getvalue_string(s, "message")
+ );
+
+ quickie_message( /* This delivers the message */
+ NULL,
+ cs->envelope_to,
+ cs->sender,
+ NULL,
+ reject_text,
+ FMT_RFC822,
+ "Delivery status notification"
+ );
+
+ free(reject_text);
+ cs->cancel_implicit_keep = 1;
+ return SIEVE2_OK;
+}
+
+
+/*
+ * Callback function to indicate that a vacation message should be generated
+ */
+int ctdl_vacation(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+ struct sdm_vacation *vptr;
+ int days = 1;
+ const char *message;
+ char *vacamsg_text = NULL;
+ char vacamsg_subject[1024];
+
+ syslog(LOG_DEBUG, "Action is VACATION");
+
+ message = sieve2_getvalue_string(s, "message");
+ if (message == NULL) return SIEVE2_ERROR_BADARGS;
+
+ if (sieve2_getvalue_string(s, "subject") != NULL) {
+ safestrncpy(vacamsg_subject, sieve2_getvalue_string(s, "subject"), sizeof vacamsg_subject);
+ }
+ else {
+ snprintf(vacamsg_subject, sizeof vacamsg_subject, "Re: %s", cs->subject);
+ }
+
+ days = sieve2_getvalue_int(s, "days");
+ if (days < 1) days = 1;
+ if (days > MAX_VACATION) days = MAX_VACATION;
+
+ /* Check to see whether we've already alerted this sender that we're on vacation. */
+ for (vptr = cs->u->first_vacation; vptr != NULL; vptr = vptr->next) {
+ if (!strcasecmp(vptr->fromaddr, cs->sender)) {
+ if ( (time(NULL) - vptr->timestamp) < (days * 86400) ) {
+ syslog(LOG_DEBUG, "Already alerted <%s> recently.", cs->sender);
+ return SIEVE2_OK;
+ }
+ }
+ }
+
+ /* Assemble the reject message. */
+ vacamsg_text = malloc(strlen(message) + 1024);
+ if (vacamsg_text == NULL) {
+ return SIEVE2_ERROR_FAIL;
+ }
+
+ sprintf(vacamsg_text,
+ "Content-type: text/plain charset=utf-8\n"
+ "\n"
+ "%s\n"
+ "\n"
+ ,
+ message
+ );
+
+ quickie_message( /* This delivers the message */
+ NULL,
+ cs->envelope_to,
+ cs->sender,
+ NULL,
+ vacamsg_text,
+ FMT_RFC822,
+ vacamsg_subject
+ );
+
+ free(vacamsg_text);
+
+ /* Now update the list to reflect the fact that we've alerted this sender.
+ * If they're already in the list, just update the timestamp.
+ */
+ for (vptr = cs->u->first_vacation; vptr != NULL; vptr = vptr->next) {
+ if (!strcasecmp(vptr->fromaddr, cs->sender)) {
+ vptr->timestamp = time(NULL);
+ return SIEVE2_OK;
+ }
+ }
+
+ /* If we get to this point, create a new record.
+ */
+ vptr = malloc(sizeof(struct sdm_vacation));
+ memset(vptr, 0, sizeof(struct sdm_vacation));
+ vptr->timestamp = time(NULL);
+ safestrncpy(vptr->fromaddr, cs->sender, sizeof vptr->fromaddr);
+ vptr->next = cs->u->first_vacation;
+ cs->u->first_vacation = vptr;
+
+ return SIEVE2_OK;
+}
+
+
+/*
+ * Callback function to parse message envelope
+ */
+int ctdl_getenvelope(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+
+ syslog(LOG_DEBUG, "Action is GETENVELOPE");
+ syslog(LOG_DEBUG, "EnvFrom: %s", cs->envelope_from);
+ syslog(LOG_DEBUG, "EnvTo: %s", cs->envelope_to);
+
+ if (cs->envelope_from != NULL) {
+ if ((cs->envelope_from[0] != '@')&&(cs->envelope_from[strlen(cs->envelope_from)-1] != '@')) {
+ sieve2_setvalue_string(s, "from", cs->envelope_from);
+ }
+ else {
+ sieve2_setvalue_string(s, "from", "invalid_envelope_from@example.org");
+ }
+ }
+ else {
+ sieve2_setvalue_string(s, "from", "null_envelope_from@example.org");
+ }
+
+
+ if (cs->envelope_to != NULL) {
+ if ((cs->envelope_to[0] != '@') && (cs->envelope_to[strlen(cs->envelope_to)-1] != '@')) {
+ sieve2_setvalue_string(s, "to", cs->envelope_to);
+ }
+ else {
+ sieve2_setvalue_string(s, "to", "invalid_envelope_to@example.org");
+ }
+ }
+ else {
+ sieve2_setvalue_string(s, "to", "null_envelope_to@example.org");
+ }
+
+ return SIEVE2_OK;
+}
+
+
+
+/*
+ * Callback function to fetch message size
+ */
+int ctdl_getsize(sieve2_context_t *s, void *my)
+{
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+ struct MetaData smi;
+
+ GetMetaData(&smi, cs->msgnum);
+
+ if (smi.meta_rfc822_length > 0L) {
+ sieve2_setvalue_int(s, "size", (int)smi.meta_rfc822_length);
+ return SIEVE2_OK;
+ }
+
+ return SIEVE2_ERROR_UNSUPPORTED;
+}
+
+
+/*
+ * Return a pointer to the active Sieve script.
+ * (Caller does NOT own the memory and should not free the returned pointer.)
+ */
+char *get_active_script(struct sdm_userdata *u) {
+ struct sdm_script *sptr;
+
+ for (sptr=u->first_script; sptr!=NULL; sptr=sptr->next) {
+ if (sptr->script_active > 0) {
+ syslog(LOG_DEBUG, "get_active_script() is using script '%s'", sptr->script_name);
+ return(sptr->script_content);
+ }
+ }
+
+ syslog(LOG_DEBUG, "get_active_script() found no active script");
+ return(NULL);
+}
+
+
+/*
+ * Callback function to retrieve the sieve script
+ */
+int ctdl_getscript(sieve2_context_t *s, void *my) {
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+
+ char *active_script = get_active_script(cs->u);
+ if (active_script != NULL) {
+ sieve2_setvalue_string(s, "script", active_script);
+ return SIEVE2_OK;
+ }
+
+ return SIEVE2_ERROR_GETSCRIPT;
+}
+
+
+/*
+ * Callback function to retrieve message headers
+ */
+int ctdl_getheaders(sieve2_context_t *s, void *my) {
+
+ struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
+
+ syslog(LOG_DEBUG, "ctdl_getheaders() was called");
+ sieve2_setvalue_string(s, "allheaders", cs->rfc822headers);
+ return SIEVE2_OK;
+}
+
+
+
+/*
+ * Perform sieve processing for one message (called by sieve_do_room() for each message)
+ */
+void sieve_do_msg(long msgnum, void *userdata) {
+ struct sdm_userdata *u = (struct sdm_userdata *) userdata;
+ sieve2_context_t *sieve2_context;
+ struct ctdl_sieve my;
+ int res;
+ struct CtdlMessage *msg;
+ int i;
+ size_t headers_len = 0;
+ int len = 0;
+
+ if (u == NULL) {
+ syslog(LOG_ERR, "Can't process message <%ld> without userdata!", msgnum);
+ return;
+ }
+
+ sieve2_context = u->sieve2_context;
+
+ syslog(LOG_DEBUG, "Performing sieve processing on msg <%ld>", msgnum);
+
+ /*
+ * Make sure you include message body so you can get those second-level headers ;)
+ */
+ msg = CtdlFetchMessage(msgnum, 1, 1);
+ if (msg == NULL) return;
+
+ /*
+ * Grab the message headers so we can feed them to libSieve.
+ * Use HEADERS_ONLY rather than HEADERS_FAST in order to include second-level headers.
+ */
+ CC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
+ CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ONLY, 0, 1, 0);
+ headers_len = StrLength(CC->redirect_buffer);
+ my.rfc822headers = SmashStrBuf(&CC->redirect_buffer);
+
+ /*
+ * libSieve clobbers the stack if it encounters badly formed
+ * headers. Sanitize our headers by stripping nonprintable
+ * characters.
+ */
+ for (i=0; i<headers_len; ++i) {
+ if (!isascii(my.rfc822headers[i])) {
+ my.rfc822headers[i] = '_';
+ }
+ }
+
+ my.keep = 0; /* Set to 1 to declare an *explicit* keep */
+ my.cancel_implicit_keep = 0; /* Some actions will cancel the implicit keep */
+ my.usernum = atol(CC->room.QRname); /* Keep track of the owner of the room's namespace */
+ my.msgnum = msgnum; /* Keep track of the message number in our local store */
+ my.u = u; /* Hand off a pointer to the rest of this info */
+
+ /* Keep track of the recipient so we can do handling based on it later */
+ process_rfc822_addr(msg->cm_fields[eRecipient], my.recp_user, my.recp_node, my.recp_name);
+
+ /* Keep track of the sender so we can use it for REJECT and VACATION responses */
+ if (!CM_IsEmpty(msg, erFc822Addr)) {
+ safestrncpy(my.sender, msg->cm_fields[erFc822Addr], sizeof my.sender);
+ }
+ else if (!CM_IsEmpty(msg, eAuthor)) {
+ safestrncpy(my.sender, msg->cm_fields[eAuthor], sizeof my.sender);
+ }
+ else {
+ strcpy(my.sender, "");
+ }
+
+ /* Keep track of the subject so we can use it for VACATION responses */
+ if (!CM_IsEmpty(msg, eMsgSubject)) {
+ safestrncpy(my.subject, msg->cm_fields[eMsgSubject], sizeof my.subject);
+ }
+ else {
+ strcpy(my.subject, "");
+ }
+
+ /* Keep track of the envelope-from address (use body-from if not found) */
+ if (!CM_IsEmpty(msg, eMessagePath)) {
+ safestrncpy(my.envelope_from, msg->cm_fields[eMessagePath], sizeof my.envelope_from);
+ stripallbut(my.envelope_from, '<', '>');
+ }
+ else if (!CM_IsEmpty(msg, erFc822Addr)) {
+ safestrncpy(my.envelope_from, msg->cm_fields[erFc822Addr], sizeof my.envelope_from);
+ stripallbut(my.envelope_from, '<', '>');
+ }
+ else {
+ strcpy(my.envelope_from, "");
+ }
+
+ len = strlen(my.envelope_from);
+ for (i=0; i<len; ++i) {
+ if (isspace(my.envelope_from[i])) my.envelope_from[i] = '_';
+ }
+ if (haschar(my.envelope_from, '@') == 0) {
+ strcat(my.envelope_from, "@");
+ strcat(my.envelope_from, CtdlGetConfigStr("c_fqdn"));
+ }
+
+ /* Keep track of the envelope-to address (use body-to if not found) */
+ if (!CM_IsEmpty(msg, eenVelopeTo)) {
+ safestrncpy(my.envelope_to, msg->cm_fields[eenVelopeTo], sizeof my.envelope_to);
+ stripallbut(my.envelope_to, '<', '>');
+ }
+ else if (!CM_IsEmpty(msg, eRecipient)) {
+ safestrncpy(my.envelope_to, msg->cm_fields[eRecipient], sizeof my.envelope_to);
+ stripallbut(my.envelope_to, '<', '>');
+ }
+ else {
+ strcpy(my.envelope_to, "");
+ }
+
+ len = strlen(my.envelope_to);
+ for (i=0; i<len; ++i) {
+ if (isspace(my.envelope_to[i])) my.envelope_to[i] = '_';
+ }
+ if (haschar(my.envelope_to, '@') == 0) {
+ strcat(my.envelope_to, "@");
+ strcat(my.envelope_to, CtdlGetConfigStr("c_fqdn"));
+ }
+
+ CM_Free(msg);
+
+ syslog(LOG_DEBUG, "Calling sieve2_execute()");
+ res = sieve2_execute(sieve2_context, &my);
+ if (res != SIEVE2_OK) {
+ syslog(LOG_ERR, "sieve2_execute() returned %d: %s", res, sieve2_errstr(res));
+ }
+
+ free(my.rfc822headers);
+ my.rfc822headers = NULL;
+
+ /*
+ * Delete the message from the inbox unless either we were told not to, or
+ * if no other action was successfully taken.
+ */
+ if ( (!my.keep) && (my.cancel_implicit_keep) ) {
+ syslog(LOG_DEBUG, "keep is 0 -- deleting message from inbox");
+ CtdlDeleteMessages(CC->room.QRname, &msgnum, 1, "");
+ }
+
+ syslog(LOG_DEBUG, "Completed sieve processing on msg <%ld>", msgnum);
+ u->lastproc = msgnum;
+
+ return;
+}
+
+
+
+/*
+ * Given the on-disk representation of our Sieve config, load
+ * it into an in-memory data structure.
+ */
+void parse_sieve_config(char *conf, struct sdm_userdata *u) {
+ char *ptr;
+ char *c, *vacrec;
+ char keyword[256];
+ struct sdm_script *sptr;
+ struct sdm_vacation *vptr;
+
+ ptr = conf;
+ while (c = ptr, ptr = bmstrcasestr(ptr, CTDLSIEVECONFIGSEPARATOR), ptr != NULL) {
+ *ptr = 0;
+ ptr += strlen(CTDLSIEVECONFIGSEPARATOR);
+
+ extract_token(keyword, c, 0, '|', sizeof keyword);
+
+ if (!strcasecmp(keyword, "lastproc")) {
+ u->lastproc = extract_long(c, 1);
+ }
+
+ else if (!strcasecmp(keyword, "script")) {
+ sptr = malloc(sizeof(struct sdm_script));
+ extract_token(sptr->script_name, c, 1, '|', sizeof sptr->script_name);
+ sptr->script_active = extract_int(c, 2);
+ remove_token(c, 0, '|');
+ remove_token(c, 0, '|');
+ remove_token(c, 0, '|');
+ sptr->script_content = strdup(c);
+ sptr->next = u->first_script;
+ u->first_script = sptr;
+ }
+
+ else if (!strcasecmp(keyword, "vacation")) {
+
+ if (c != NULL) while (vacrec=c, c=strchr(c, '\n'), (c != NULL)) {
+
+ *c = 0;
+ ++c;
+
+ if (strncasecmp(vacrec, "vacation|", 9)) {
+ vptr = malloc(sizeof(struct sdm_vacation));
+ extract_token(vptr->fromaddr, vacrec, 0, '|', sizeof vptr->fromaddr);
+ vptr->timestamp = extract_long(vacrec, 1);
+ vptr->next = u->first_vacation;
+ u->first_vacation = vptr;
+ }
+ }
+ }
+
+ /* ignore unknown keywords */
+ }
+}
+
+/*
+ * We found the Sieve configuration for this user.
+ * Now do something with it.
+ */
+void get_sieve_config_backend(long msgnum, void *userdata) {
+ struct sdm_userdata *u = (struct sdm_userdata *) userdata;
+ struct CtdlMessage *msg;
+ char *conf;
+ long conflen;
+
+ u->config_msgnum = msgnum;
+ msg = CtdlFetchMessage(msgnum, 1, 1);
+ if (msg == NULL) {
+ u->config_msgnum = (-1) ;
+ return;
+ }
+
+ CM_GetAsField(msg, eMesageText, &conf, &conflen);
+
+ CM_Free(msg);
+
+ if (conf != NULL) {
+ parse_sieve_config(conf, u);
+ free(conf);
+ }
+
+}
+
+
+/*
+ * Write our citadel sieve config back to disk
+ *
+ * (Set yes_write_to_disk to nonzero to make it actually write the config;
+ * otherwise it just frees the data structures.)
+ */
+void rewrite_ctdl_sieve_config(struct sdm_userdata *u, int yes_write_to_disk) {
+ StrBuf *text;
+ struct sdm_script *sptr;
+ struct sdm_vacation *vptr;
+
+ text = NewStrBufPlain(NULL, SIZ);
+ StrBufPrintf(text,
+ "Content-type: application/x-citadel-sieve-config\n"
+ "\n"
+ CTDLSIEVECONFIGSEPARATOR
+ "lastproc|%ld"
+ CTDLSIEVECONFIGSEPARATOR
+ ,
+ u->lastproc
+ );
+
+ while (u->first_script != NULL) {
+ StrBufAppendPrintf(text,
+ "script|%s|%d|%s" CTDLSIEVECONFIGSEPARATOR,
+ u->first_script->script_name,
+ u->first_script->script_active,
+ u->first_script->script_content
+ );
+ sptr = u->first_script;
+ u->first_script = u->first_script->next;
+ free(sptr->script_content);
+ free(sptr);
+ }
+
+ if (u->first_vacation != NULL) {
+
+ StrBufAppendPrintf(text, "vacation|\n");
+ while (u->first_vacation != NULL) {
+ if ( (time(NULL) - u->first_vacation->timestamp) < (MAX_VACATION * 86400)) {
+ StrBufAppendPrintf(text, "%s|%ld\n",
+ u->first_vacation->fromaddr,
+ u->first_vacation->timestamp
+ );
+ }
+ vptr = u->first_vacation;
+ u->first_vacation = u->first_vacation->next;
+ free(vptr);
+ }
+ StrBufAppendPrintf(text, CTDLSIEVECONFIGSEPARATOR);
+ }
+
+ if (yes_write_to_disk)
+ {
+ /* Save the config */
+ quickie_message("Citadel", NULL, NULL, u->config_roomname,
+ ChrPtr(text),
+ 4,
+ "Sieve configuration"
+ );
+
+ /* And delete the old one */
+ if (u->config_msgnum > 0) {
+ CtdlDeleteMessages(u->config_roomname, &u->config_msgnum, 1, "");
+ }
+ }
+
+ FreeStrBuf (&text);
+
+}
+
+
+/*
+ * This is our callback registration table for libSieve.
+ */
+sieve2_callback_t ctdl_sieve_callbacks[] = {
+ { SIEVE2_ACTION_REJECT, ctdl_reject },
+ { SIEVE2_ACTION_VACATION, ctdl_vacation },
+ { SIEVE2_ERRCALL_PARSE, ctdl_errparse },
+ { SIEVE2_ERRCALL_RUNTIME, ctdl_errexec },
+ { SIEVE2_ACTION_FILEINTO, ctdl_fileinto },
+ { SIEVE2_ACTION_REDIRECT, ctdl_redirect },
+ { SIEVE2_ACTION_DISCARD, ctdl_discard },
+ { SIEVE2_ACTION_KEEP, ctdl_keep },
+ { SIEVE2_SCRIPT_GETSCRIPT, ctdl_getscript },
+ { SIEVE2_DEBUG_TRACE, ctdl_debug },
+ { SIEVE2_MESSAGE_GETALLHEADERS, ctdl_getheaders },
+ { SIEVE2_MESSAGE_GETSIZE, ctdl_getsize },
+ { SIEVE2_MESSAGE_GETENVELOPE, ctdl_getenvelope },
+ { 0 }
+};
+
+
+/*
+ * Perform sieve processing for a single room
+ */
+void sieve_do_room(char *roomname) {
+
+ struct sdm_userdata u;
+ sieve2_context_t *sieve2_context = NULL; /* Context for sieve parser */
+ int res; /* Return code from libsieve calls */
+ long orig_lastproc = 0;
+
+ memset(&u, 0, sizeof u);
+
+ /* See if the user who owns this 'mailbox' has any Sieve scripts that
+ * require execution.
+ */
+ snprintf(u.config_roomname, sizeof u.config_roomname, "%010ld.%s", atol(roomname), USERCONFIGROOM);
+ if (CtdlGetRoom(&CC->room, u.config_roomname) != 0) {
+ syslog(LOG_DEBUG, "<%s> does not exist. No processing is required.", u.config_roomname);
+ return;
+ }
+
+ /*
+ * Find the sieve scripts and control record and do something
+ */
+ u.config_msgnum = (-1);
+ CtdlForEachMessage(MSGS_LAST, 1, NULL, SIEVECONFIG, NULL, get_sieve_config_backend, (void *)&u );
+
+ if (u.config_msgnum < 0) {
+ syslog(LOG_DEBUG, "No Sieve rules exist. No processing is required.");
+ return;
+ }
+
+ /*
+ * Check to see whether the script is empty and should not be processed.
+ * A script is considered non-empty if it contains at least one semicolon.
+ */
+ if (
+ (get_active_script(&u) == NULL)
+ || (strchr(get_active_script(&u), ';') == NULL)
+ ) {
+ syslog(LOG_DEBUG, "Sieve script is empty. No processing is required.");
+ return;
+ }
+
+ syslog(LOG_DEBUG, "Rules found. Performing Sieve processing for <%s>", roomname);
+
+ if (CtdlGetRoom(&CC->room, roomname) != 0) {
+ syslog(LOG_ERR, "ERROR: cannot load <%s>", roomname);
+ return;
+ }
+
+ /* Initialize the Sieve parser */
+
+ res = sieve2_alloc(&sieve2_context);
+ if (res != SIEVE2_OK) {
+ syslog(LOG_ERR, "sieve2_alloc() returned %d: %s", res, sieve2_errstr(res));
+ return;
+ }
+
+ res = sieve2_callbacks(sieve2_context, ctdl_sieve_callbacks);
+ if (res != SIEVE2_OK) {
+ syslog(LOG_ERR, "sieve2_callbacks() returned %d: %s", res, sieve2_errstr(res));
+ goto BAIL;
+ }
+
+ /* Validate the script */
+
+ struct ctdl_sieve my; /* dummy ctdl_sieve struct just to pass "u" along */
+ memset(&my, 0, sizeof my);
+ my.u = &u;
+ res = sieve2_validate(sieve2_context, &my);
+ if (res != SIEVE2_OK) {
+ syslog(LOG_ERR, "sieve2_validate() returned %d: %s", res, sieve2_errstr(res));
+ goto BAIL;
+ }
+
+ /* Do something useful */
+ u.sieve2_context = sieve2_context;
+ orig_lastproc = u.lastproc;
+ CtdlForEachMessage(MSGS_GT, u.lastproc, NULL, NULL, NULL, sieve_do_msg, (void *) &u);
+
+BAIL:
+ res = sieve2_free(&sieve2_context);
+ if (res != SIEVE2_OK) {
+ syslog(LOG_ERR, "sieve2_free() returned %d: %s", res, sieve2_errstr(res));
+ }
+
+ /* Rewrite the config if we have to (we're not the user right now) */
+ rewrite_ctdl_sieve_config(&u, (u.lastproc > orig_lastproc) ) ;
+}
+
+
+
+
+#endif
+
+
+
+
+/*
+ * Get InBox Rules
+ *
+ * This is a client-facing function which fetches the user's inbox rules -- it omits all lines containing anything other than a rule.
+ */
+void cmd_gibr(char *argbuf) {
+
+ if (CtdlAccessCheck(ac_logged_in)) return;
+
+ cprintf("%d inbox rules for %s\n", LISTING_FOLLOWS, CC->user.fullname);
+
+ struct CtdlMessage *msg = CtdlFetchMessage(CC->user.msgnum_inboxrules, 1, 1);
+ if (msg != NULL) {
+ if (!CM_IsEmpty(msg, eMesageText)) {
+ char *token;
+ char *rest = msg->cm_fields[eMesageText];
+ while ((token = strtok_r(rest, "\n", &rest))) {
+
+ // for backwards compatibility, "# WEBCIT_RULE" is an alias for "rule"
+ if (!strncasecmp(token, "# WEBCIT_RULE|", 14)) {
+ strcpy(token, "rule|");
+ strcpy(&token[5], &token[14]);
+ }
+
+ // Output only lines containing rules.
+ if (!strncasecmp(token, "rule|", 5)) {
+ cprintf("%s\n", token);
+ }
+ }
+ }
+ CM_Free(msg);
+ }
+ cprintf("000\n");
+}
+
+
+/*
+ * Put InBox Rules
+ *
+ * User transmits the new inbox rules for the account. They are inserted into the account, replacing the ones already there.
+ */
+void cmd_pibr(char *argbuf) {
+ if (CtdlAccessCheck(ac_logged_in)) return;
+
+ unbuffer_output();
+ cprintf("%d send new rules\n", SEND_LISTING);
+ char *newrules = CtdlReadMessageBody(HKEY("000"), CtdlGetConfigLong("c_maxmsglen"), NULL, 0);
+ StrBuf *NewConfig = NewStrBufPlain("Content-type: application/x-citadel-sieve-config; charset=UTF-8\nContent-transfer-encoding: 8bit\n\n", -1);
+
+ char *token;
+ char *rest = newrules;
+ while ((token = strtok_r(rest, "\n", &rest))) {
+ // Accept only lines containing rules
+ if (!strncasecmp(token, "rule|", 5)) {
+ StrBufAppendBufPlain(NewConfig, token, -1, 0);
+ StrBufAppendBufPlain(NewConfig, HKEY("\n"), 0);
+ }
+ }
+ free(newrules);
+
+ // Fetch the existing config so we can merge in anything that is NOT a rule
+ // (Does not start with "rule|" but has at least one vertical bar)
+ struct CtdlMessage *msg = CtdlFetchMessage(CC->user.msgnum_inboxrules, 1, 1);
+ if (msg != NULL) {
+ if (!CM_IsEmpty(msg, eMesageText)) {
+ rest = msg->cm_fields[eMesageText];
+ while ((token = strtok_r(rest, "\n", &rest))) {
+ // for backwards compatibility, "# WEBCIT_RULE" is an alias for "rule"
+ if ((strncasecmp(token, "# WEBCIT_RULE|", 14)) && (strncasecmp(token, "rule|", 5)) && (haschar(token, '|'))) {
+ StrBufAppendBufPlain(NewConfig, token, -1, 0);
+ StrBufAppendBufPlain(NewConfig, HKEY("\n"), 0);
+ }
+ }
+ }
+ CM_Free(msg);
+ }
+
+ /* we have composed the new configuration , now save it */
+ long old_msgnum = CC->user.msgnum_inboxrules;
+ char userconfigroomname[ROOMNAMELEN];
+ CtdlMailboxName(userconfigroomname, sizeof userconfigroomname, &CC->user, USERCONFIGROOM);
+ long new_msgnum = quickie_message("Citadel", NULL, NULL, userconfigroomname, ChrPtr(NewConfig), FMT_RFC822, "inbox rules configuration");
+ FreeStrBuf(&NewConfig);
+ CtdlGetUserLock(&CC->user, CC->curr_user);
+ CC->user.msgnum_inboxrules = new_msgnum;
+ CtdlPutUserLock(&CC->user);
+ if (old_msgnum > 0) {
+ syslog(LOG_DEBUG, "Deleting old message %ld from %s", old_msgnum, userconfigroomname);
+ CtdlDeleteMessages(userconfigroomname, &old_msgnum, 1, "");
+ }
+}
+
+
+CTDL_MODULE_INIT(sieve)
+{
+ if (!threading)
+ {
+ // ctdl_sieve_init();
+ CtdlRegisterProtoHook(cmd_gibr, "GIBR", "Get InBox Rules");
+ CtdlRegisterProtoHook(cmd_pibr, "PIBR", "Put InBox Rules");
+ // CtdlRegisterSessionHook(perform_sieve_processing, EVT_HOUSE, PRIO_HOUSE + 10);
+ // CtdlRegisterCleanupHook(cleanup_sieve);
+ }
+
+ /* return our module name for the log */
+ return "inboxrules";
+}
+++ /dev/null
-/*
- * Inbox handling rules
- *
- * 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.
- *
- * 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 <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <ctype.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 <sys/wait.h>
-#include <string.h>
-#include <limits.h>
-#include <libcitadel.h>
-#include "citadel.h"
-#include "server.h"
-#include "citserver.h"
-#include "support.h"
-#include "config.h"
-#include "database.h"
-#include "msgbase.h"
-#include "internet_addressing.h"
-#include "ctdl_module.h"
-
-
-#if 0
-
-/*
- * Callback function to redirect a message to a different folder
- */
-int ctdl_redirect(void)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
- struct CtdlMessage *msg = NULL;
- recptypes *valid = NULL;
- char recp[256];
-
- safestrncpy(recp, sieve2_getvalue_string(s, "address"), sizeof recp);
-
- syslog(LOG_DEBUG, "Action is REDIRECT, recipient <%s>", recp);
-
- valid = validate_recipients(recp, NULL, 0);
- if (valid == NULL) {
- syslog(LOG_WARNING, "REDIRECT failed: bad recipient <%s>", recp);
- return SIEVE2_ERROR_BADARGS;
- }
- if (valid->num_error > 0) {
- syslog(LOG_WARNING, "REDIRECT failed: bad recipient <%s>", recp);
- free_recipients(valid);
- return SIEVE2_ERROR_BADARGS;
- }
-
- msg = CtdlFetchMessage(cs->msgnum, 1, 1);
- if (msg == NULL) {
- syslog(LOG_WARNING, "REDIRECT failed: unable to fetch msg %ld", cs->msgnum);
- free_recipients(valid);
- return SIEVE2_ERROR_BADARGS;
- }
-
- CtdlSubmitMsg(msg, valid, NULL, 0);
- cs->cancel_implicit_keep = 1;
- free_recipients(valid);
- CM_Free(msg);
- return SIEVE2_OK;
-}
-
-
-/*
- * Callback function to indicate that a message *will* be kept in the inbox
- */
-int ctdl_keep(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
-
- syslog(LOG_DEBUG, "Action is KEEP");
-
- cs->keep = 1;
- cs->cancel_implicit_keep = 1;
- return SIEVE2_OK;
-}
-
-
-/*
- * Callback function to file a message into a different mailbox
- */
-int ctdl_fileinto(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
- const char *dest_folder = sieve2_getvalue_string(s, "mailbox");
- int c;
- char foldername[256];
- char original_room_name[ROOMNAMELEN];
-
- syslog(LOG_DEBUG, "Action is FILEINTO, destination is <%s>", dest_folder);
-
- /* FILEINTO 'INBOX' is the same thing as KEEP */
- if ( (!strcasecmp(dest_folder, "INBOX")) || (!strcasecmp(dest_folder, MAILROOM)) ) {
- cs->keep = 1;
- cs->cancel_implicit_keep = 1;
- return SIEVE2_OK;
- }
-
- /* Remember what room we came from */
- safestrncpy(original_room_name, CC->room.QRname, sizeof original_room_name);
-
- /* First try a mailbox name match (check personal mail folders first) */
- snprintf(foldername, sizeof foldername, "%010ld.%s", cs->usernum, dest_folder);
- c = CtdlGetRoom(&CC->room, foldername);
-
- /* Then a regular room name match (public and private rooms) */
- if (c != 0) {
- safestrncpy(foldername, dest_folder, sizeof foldername);
- c = CtdlGetRoom(&CC->room, foldername);
- }
-
- if (c != 0) {
- syslog(LOG_WARNING, "FILEINTO failed: target <%s> does not exist", dest_folder);
- return SIEVE2_ERROR_BADARGS;
- }
-
- /* Yes, we actually have to go there */
- CtdlUserGoto(NULL, 0, 0, NULL, NULL, NULL, NULL);
-
- c = CtdlSaveMsgPointersInRoom(NULL, &cs->msgnum, 1, 0, NULL, 0);
-
- /* Go back to the room we came from */
- if (strcasecmp(original_room_name, CC->room.QRname)) {
- CtdlUserGoto(original_room_name, 0, 0, NULL, NULL, NULL, NULL);
- }
-
- if (c == 0) {
- cs->cancel_implicit_keep = 1;
- return SIEVE2_OK;
- }
- else {
- return SIEVE2_ERROR_BADARGS;
- }
-}
-
-
-/*
- * Callback function to indicate that a message should be discarded.
- */
-int ctdl_discard(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
-
- syslog(LOG_DEBUG, "Action is DISCARD");
-
- /* Cancel the implicit keep. That's all there is to it. */
- cs->cancel_implicit_keep = 1;
- return SIEVE2_OK;
-}
-
-
-/*
- * Callback function to indicate that a message should be rejected
- */
-int ctdl_reject(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
- char *reject_text = NULL;
-
- syslog(LOG_DEBUG, "Action is REJECT");
-
- /* If we don't know who sent the message, do a DISCARD instead. */
- if (IsEmptyStr(cs->sender)) {
- syslog(LOG_INFO, "Unknown sender. Doing DISCARD instead of REJECT.");
- return ctdl_discard(s, my);
- }
-
- /* Assemble the reject message. */
- reject_text = malloc(strlen(sieve2_getvalue_string(s, "message")) + 1024);
- if (reject_text == NULL) {
- return SIEVE2_ERROR_FAIL;
- }
-
- sprintf(reject_text,
- "Content-type: text/plain\n"
- "\n"
- "The message was refused by the recipient's mail filtering program.\n"
- "The reason given was as follows:\n"
- "\n"
- "%s\n"
- "\n"
- ,
- sieve2_getvalue_string(s, "message")
- );
-
- quickie_message( /* This delivers the message */
- NULL,
- cs->envelope_to,
- cs->sender,
- NULL,
- reject_text,
- FMT_RFC822,
- "Delivery status notification"
- );
-
- free(reject_text);
- cs->cancel_implicit_keep = 1;
- return SIEVE2_OK;
-}
-
-
-/*
- * Callback function to indicate that a vacation message should be generated
- */
-int ctdl_vacation(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
- struct sdm_vacation *vptr;
- int days = 1;
- const char *message;
- char *vacamsg_text = NULL;
- char vacamsg_subject[1024];
-
- syslog(LOG_DEBUG, "Action is VACATION");
-
- message = sieve2_getvalue_string(s, "message");
- if (message == NULL) return SIEVE2_ERROR_BADARGS;
-
- if (sieve2_getvalue_string(s, "subject") != NULL) {
- safestrncpy(vacamsg_subject, sieve2_getvalue_string(s, "subject"), sizeof vacamsg_subject);
- }
- else {
- snprintf(vacamsg_subject, sizeof vacamsg_subject, "Re: %s", cs->subject);
- }
-
- days = sieve2_getvalue_int(s, "days");
- if (days < 1) days = 1;
- if (days > MAX_VACATION) days = MAX_VACATION;
-
- /* Check to see whether we've already alerted this sender that we're on vacation. */
- for (vptr = cs->u->first_vacation; vptr != NULL; vptr = vptr->next) {
- if (!strcasecmp(vptr->fromaddr, cs->sender)) {
- if ( (time(NULL) - vptr->timestamp) < (days * 86400) ) {
- syslog(LOG_DEBUG, "Already alerted <%s> recently.", cs->sender);
- return SIEVE2_OK;
- }
- }
- }
-
- /* Assemble the reject message. */
- vacamsg_text = malloc(strlen(message) + 1024);
- if (vacamsg_text == NULL) {
- return SIEVE2_ERROR_FAIL;
- }
-
- sprintf(vacamsg_text,
- "Content-type: text/plain charset=utf-8\n"
- "\n"
- "%s\n"
- "\n"
- ,
- message
- );
-
- quickie_message( /* This delivers the message */
- NULL,
- cs->envelope_to,
- cs->sender,
- NULL,
- vacamsg_text,
- FMT_RFC822,
- vacamsg_subject
- );
-
- free(vacamsg_text);
-
- /* Now update the list to reflect the fact that we've alerted this sender.
- * If they're already in the list, just update the timestamp.
- */
- for (vptr = cs->u->first_vacation; vptr != NULL; vptr = vptr->next) {
- if (!strcasecmp(vptr->fromaddr, cs->sender)) {
- vptr->timestamp = time(NULL);
- return SIEVE2_OK;
- }
- }
-
- /* If we get to this point, create a new record.
- */
- vptr = malloc(sizeof(struct sdm_vacation));
- memset(vptr, 0, sizeof(struct sdm_vacation));
- vptr->timestamp = time(NULL);
- safestrncpy(vptr->fromaddr, cs->sender, sizeof vptr->fromaddr);
- vptr->next = cs->u->first_vacation;
- cs->u->first_vacation = vptr;
-
- return SIEVE2_OK;
-}
-
-
-/*
- * Callback function to parse message envelope
- */
-int ctdl_getenvelope(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
-
- syslog(LOG_DEBUG, "Action is GETENVELOPE");
- syslog(LOG_DEBUG, "EnvFrom: %s", cs->envelope_from);
- syslog(LOG_DEBUG, "EnvTo: %s", cs->envelope_to);
-
- if (cs->envelope_from != NULL) {
- if ((cs->envelope_from[0] != '@')&&(cs->envelope_from[strlen(cs->envelope_from)-1] != '@')) {
- sieve2_setvalue_string(s, "from", cs->envelope_from);
- }
- else {
- sieve2_setvalue_string(s, "from", "invalid_envelope_from@example.org");
- }
- }
- else {
- sieve2_setvalue_string(s, "from", "null_envelope_from@example.org");
- }
-
-
- if (cs->envelope_to != NULL) {
- if ((cs->envelope_to[0] != '@') && (cs->envelope_to[strlen(cs->envelope_to)-1] != '@')) {
- sieve2_setvalue_string(s, "to", cs->envelope_to);
- }
- else {
- sieve2_setvalue_string(s, "to", "invalid_envelope_to@example.org");
- }
- }
- else {
- sieve2_setvalue_string(s, "to", "null_envelope_to@example.org");
- }
-
- return SIEVE2_OK;
-}
-
-
-
-/*
- * Callback function to fetch message size
- */
-int ctdl_getsize(sieve2_context_t *s, void *my)
-{
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
- struct MetaData smi;
-
- GetMetaData(&smi, cs->msgnum);
-
- if (smi.meta_rfc822_length > 0L) {
- sieve2_setvalue_int(s, "size", (int)smi.meta_rfc822_length);
- return SIEVE2_OK;
- }
-
- return SIEVE2_ERROR_UNSUPPORTED;
-}
-
-
-/*
- * Return a pointer to the active Sieve script.
- * (Caller does NOT own the memory and should not free the returned pointer.)
- */
-char *get_active_script(struct sdm_userdata *u) {
- struct sdm_script *sptr;
-
- for (sptr=u->first_script; sptr!=NULL; sptr=sptr->next) {
- if (sptr->script_active > 0) {
- syslog(LOG_DEBUG, "get_active_script() is using script '%s'", sptr->script_name);
- return(sptr->script_content);
- }
- }
-
- syslog(LOG_DEBUG, "get_active_script() found no active script");
- return(NULL);
-}
-
-
-/*
- * Callback function to retrieve the sieve script
- */
-int ctdl_getscript(sieve2_context_t *s, void *my) {
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
-
- char *active_script = get_active_script(cs->u);
- if (active_script != NULL) {
- sieve2_setvalue_string(s, "script", active_script);
- return SIEVE2_OK;
- }
-
- return SIEVE2_ERROR_GETSCRIPT;
-}
-
-
-/*
- * Callback function to retrieve message headers
- */
-int ctdl_getheaders(sieve2_context_t *s, void *my) {
-
- struct ctdl_sieve *cs = (struct ctdl_sieve *)my;
-
- syslog(LOG_DEBUG, "ctdl_getheaders() was called");
- sieve2_setvalue_string(s, "allheaders", cs->rfc822headers);
- return SIEVE2_OK;
-}
-
-
-
-/*
- * Perform sieve processing for one message (called by sieve_do_room() for each message)
- */
-void sieve_do_msg(long msgnum, void *userdata) {
- struct sdm_userdata *u = (struct sdm_userdata *) userdata;
- sieve2_context_t *sieve2_context;
- struct ctdl_sieve my;
- int res;
- struct CtdlMessage *msg;
- int i;
- size_t headers_len = 0;
- int len = 0;
-
- if (u == NULL) {
- syslog(LOG_ERR, "Can't process message <%ld> without userdata!", msgnum);
- return;
- }
-
- sieve2_context = u->sieve2_context;
-
- syslog(LOG_DEBUG, "Performing sieve processing on msg <%ld>", msgnum);
-
- /*
- * Make sure you include message body so you can get those second-level headers ;)
- */
- msg = CtdlFetchMessage(msgnum, 1, 1);
- if (msg == NULL) return;
-
- /*
- * Grab the message headers so we can feed them to libSieve.
- * Use HEADERS_ONLY rather than HEADERS_FAST in order to include second-level headers.
- */
- CC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
- CtdlOutputPreLoadedMsg(msg, MT_RFC822, HEADERS_ONLY, 0, 1, 0);
- headers_len = StrLength(CC->redirect_buffer);
- my.rfc822headers = SmashStrBuf(&CC->redirect_buffer);
-
- /*
- * libSieve clobbers the stack if it encounters badly formed
- * headers. Sanitize our headers by stripping nonprintable
- * characters.
- */
- for (i=0; i<headers_len; ++i) {
- if (!isascii(my.rfc822headers[i])) {
- my.rfc822headers[i] = '_';
- }
- }
-
- my.keep = 0; /* Set to 1 to declare an *explicit* keep */
- my.cancel_implicit_keep = 0; /* Some actions will cancel the implicit keep */
- my.usernum = atol(CC->room.QRname); /* Keep track of the owner of the room's namespace */
- my.msgnum = msgnum; /* Keep track of the message number in our local store */
- my.u = u; /* Hand off a pointer to the rest of this info */
-
- /* Keep track of the recipient so we can do handling based on it later */
- process_rfc822_addr(msg->cm_fields[eRecipient], my.recp_user, my.recp_node, my.recp_name);
-
- /* Keep track of the sender so we can use it for REJECT and VACATION responses */
- if (!CM_IsEmpty(msg, erFc822Addr)) {
- safestrncpy(my.sender, msg->cm_fields[erFc822Addr], sizeof my.sender);
- }
- else if (!CM_IsEmpty(msg, eAuthor)) {
- safestrncpy(my.sender, msg->cm_fields[eAuthor], sizeof my.sender);
- }
- else {
- strcpy(my.sender, "");
- }
-
- /* Keep track of the subject so we can use it for VACATION responses */
- if (!CM_IsEmpty(msg, eMsgSubject)) {
- safestrncpy(my.subject, msg->cm_fields[eMsgSubject], sizeof my.subject);
- }
- else {
- strcpy(my.subject, "");
- }
-
- /* Keep track of the envelope-from address (use body-from if not found) */
- if (!CM_IsEmpty(msg, eMessagePath)) {
- safestrncpy(my.envelope_from, msg->cm_fields[eMessagePath], sizeof my.envelope_from);
- stripallbut(my.envelope_from, '<', '>');
- }
- else if (!CM_IsEmpty(msg, erFc822Addr)) {
- safestrncpy(my.envelope_from, msg->cm_fields[erFc822Addr], sizeof my.envelope_from);
- stripallbut(my.envelope_from, '<', '>');
- }
- else {
- strcpy(my.envelope_from, "");
- }
-
- len = strlen(my.envelope_from);
- for (i=0; i<len; ++i) {
- if (isspace(my.envelope_from[i])) my.envelope_from[i] = '_';
- }
- if (haschar(my.envelope_from, '@') == 0) {
- strcat(my.envelope_from, "@");
- strcat(my.envelope_from, CtdlGetConfigStr("c_fqdn"));
- }
-
- /* Keep track of the envelope-to address (use body-to if not found) */
- if (!CM_IsEmpty(msg, eenVelopeTo)) {
- safestrncpy(my.envelope_to, msg->cm_fields[eenVelopeTo], sizeof my.envelope_to);
- stripallbut(my.envelope_to, '<', '>');
- }
- else if (!CM_IsEmpty(msg, eRecipient)) {
- safestrncpy(my.envelope_to, msg->cm_fields[eRecipient], sizeof my.envelope_to);
- stripallbut(my.envelope_to, '<', '>');
- }
- else {
- strcpy(my.envelope_to, "");
- }
-
- len = strlen(my.envelope_to);
- for (i=0; i<len; ++i) {
- if (isspace(my.envelope_to[i])) my.envelope_to[i] = '_';
- }
- if (haschar(my.envelope_to, '@') == 0) {
- strcat(my.envelope_to, "@");
- strcat(my.envelope_to, CtdlGetConfigStr("c_fqdn"));
- }
-
- CM_Free(msg);
-
- syslog(LOG_DEBUG, "Calling sieve2_execute()");
- res = sieve2_execute(sieve2_context, &my);
- if (res != SIEVE2_OK) {
- syslog(LOG_ERR, "sieve2_execute() returned %d: %s", res, sieve2_errstr(res));
- }
-
- free(my.rfc822headers);
- my.rfc822headers = NULL;
-
- /*
- * Delete the message from the inbox unless either we were told not to, or
- * if no other action was successfully taken.
- */
- if ( (!my.keep) && (my.cancel_implicit_keep) ) {
- syslog(LOG_DEBUG, "keep is 0 -- deleting message from inbox");
- CtdlDeleteMessages(CC->room.QRname, &msgnum, 1, "");
- }
-
- syslog(LOG_DEBUG, "Completed sieve processing on msg <%ld>", msgnum);
- u->lastproc = msgnum;
-
- return;
-}
-
-
-
-/*
- * Given the on-disk representation of our Sieve config, load
- * it into an in-memory data structure.
- */
-void parse_sieve_config(char *conf, struct sdm_userdata *u) {
- char *ptr;
- char *c, *vacrec;
- char keyword[256];
- struct sdm_script *sptr;
- struct sdm_vacation *vptr;
-
- ptr = conf;
- while (c = ptr, ptr = bmstrcasestr(ptr, CTDLSIEVECONFIGSEPARATOR), ptr != NULL) {
- *ptr = 0;
- ptr += strlen(CTDLSIEVECONFIGSEPARATOR);
-
- extract_token(keyword, c, 0, '|', sizeof keyword);
-
- if (!strcasecmp(keyword, "lastproc")) {
- u->lastproc = extract_long(c, 1);
- }
-
- else if (!strcasecmp(keyword, "script")) {
- sptr = malloc(sizeof(struct sdm_script));
- extract_token(sptr->script_name, c, 1, '|', sizeof sptr->script_name);
- sptr->script_active = extract_int(c, 2);
- remove_token(c, 0, '|');
- remove_token(c, 0, '|');
- remove_token(c, 0, '|');
- sptr->script_content = strdup(c);
- sptr->next = u->first_script;
- u->first_script = sptr;
- }
-
- else if (!strcasecmp(keyword, "vacation")) {
-
- if (c != NULL) while (vacrec=c, c=strchr(c, '\n'), (c != NULL)) {
-
- *c = 0;
- ++c;
-
- if (strncasecmp(vacrec, "vacation|", 9)) {
- vptr = malloc(sizeof(struct sdm_vacation));
- extract_token(vptr->fromaddr, vacrec, 0, '|', sizeof vptr->fromaddr);
- vptr->timestamp = extract_long(vacrec, 1);
- vptr->next = u->first_vacation;
- u->first_vacation = vptr;
- }
- }
- }
-
- /* ignore unknown keywords */
- }
-}
-
-/*
- * We found the Sieve configuration for this user.
- * Now do something with it.
- */
-void get_sieve_config_backend(long msgnum, void *userdata) {
- struct sdm_userdata *u = (struct sdm_userdata *) userdata;
- struct CtdlMessage *msg;
- char *conf;
- long conflen;
-
- u->config_msgnum = msgnum;
- msg = CtdlFetchMessage(msgnum, 1, 1);
- if (msg == NULL) {
- u->config_msgnum = (-1) ;
- return;
- }
-
- CM_GetAsField(msg, eMesageText, &conf, &conflen);
-
- CM_Free(msg);
-
- if (conf != NULL) {
- parse_sieve_config(conf, u);
- free(conf);
- }
-
-}
-
-
-/*
- * Write our citadel sieve config back to disk
- *
- * (Set yes_write_to_disk to nonzero to make it actually write the config;
- * otherwise it just frees the data structures.)
- */
-void rewrite_ctdl_sieve_config(struct sdm_userdata *u, int yes_write_to_disk) {
- StrBuf *text;
- struct sdm_script *sptr;
- struct sdm_vacation *vptr;
-
- text = NewStrBufPlain(NULL, SIZ);
- StrBufPrintf(text,
- "Content-type: application/x-citadel-sieve-config\n"
- "\n"
- CTDLSIEVECONFIGSEPARATOR
- "lastproc|%ld"
- CTDLSIEVECONFIGSEPARATOR
- ,
- u->lastproc
- );
-
- while (u->first_script != NULL) {
- StrBufAppendPrintf(text,
- "script|%s|%d|%s" CTDLSIEVECONFIGSEPARATOR,
- u->first_script->script_name,
- u->first_script->script_active,
- u->first_script->script_content
- );
- sptr = u->first_script;
- u->first_script = u->first_script->next;
- free(sptr->script_content);
- free(sptr);
- }
-
- if (u->first_vacation != NULL) {
-
- StrBufAppendPrintf(text, "vacation|\n");
- while (u->first_vacation != NULL) {
- if ( (time(NULL) - u->first_vacation->timestamp) < (MAX_VACATION * 86400)) {
- StrBufAppendPrintf(text, "%s|%ld\n",
- u->first_vacation->fromaddr,
- u->first_vacation->timestamp
- );
- }
- vptr = u->first_vacation;
- u->first_vacation = u->first_vacation->next;
- free(vptr);
- }
- StrBufAppendPrintf(text, CTDLSIEVECONFIGSEPARATOR);
- }
-
- if (yes_write_to_disk)
- {
- /* Save the config */
- quickie_message("Citadel", NULL, NULL, u->config_roomname,
- ChrPtr(text),
- 4,
- "Sieve configuration"
- );
-
- /* And delete the old one */
- if (u->config_msgnum > 0) {
- CtdlDeleteMessages(u->config_roomname, &u->config_msgnum, 1, "");
- }
- }
-
- FreeStrBuf (&text);
-
-}
-
-
-/*
- * This is our callback registration table for libSieve.
- */
-sieve2_callback_t ctdl_sieve_callbacks[] = {
- { SIEVE2_ACTION_REJECT, ctdl_reject },
- { SIEVE2_ACTION_VACATION, ctdl_vacation },
- { SIEVE2_ERRCALL_PARSE, ctdl_errparse },
- { SIEVE2_ERRCALL_RUNTIME, ctdl_errexec },
- { SIEVE2_ACTION_FILEINTO, ctdl_fileinto },
- { SIEVE2_ACTION_REDIRECT, ctdl_redirect },
- { SIEVE2_ACTION_DISCARD, ctdl_discard },
- { SIEVE2_ACTION_KEEP, ctdl_keep },
- { SIEVE2_SCRIPT_GETSCRIPT, ctdl_getscript },
- { SIEVE2_DEBUG_TRACE, ctdl_debug },
- { SIEVE2_MESSAGE_GETALLHEADERS, ctdl_getheaders },
- { SIEVE2_MESSAGE_GETSIZE, ctdl_getsize },
- { SIEVE2_MESSAGE_GETENVELOPE, ctdl_getenvelope },
- { 0 }
-};
-
-
-/*
- * Perform sieve processing for a single room
- */
-void sieve_do_room(char *roomname) {
-
- struct sdm_userdata u;
- sieve2_context_t *sieve2_context = NULL; /* Context for sieve parser */
- int res; /* Return code from libsieve calls */
- long orig_lastproc = 0;
-
- memset(&u, 0, sizeof u);
-
- /* See if the user who owns this 'mailbox' has any Sieve scripts that
- * require execution.
- */
- snprintf(u.config_roomname, sizeof u.config_roomname, "%010ld.%s", atol(roomname), USERCONFIGROOM);
- if (CtdlGetRoom(&CC->room, u.config_roomname) != 0) {
- syslog(LOG_DEBUG, "<%s> does not exist. No processing is required.", u.config_roomname);
- return;
- }
-
- /*
- * Find the sieve scripts and control record and do something
- */
- u.config_msgnum = (-1);
- CtdlForEachMessage(MSGS_LAST, 1, NULL, SIEVECONFIG, NULL, get_sieve_config_backend, (void *)&u );
-
- if (u.config_msgnum < 0) {
- syslog(LOG_DEBUG, "No Sieve rules exist. No processing is required.");
- return;
- }
-
- /*
- * Check to see whether the script is empty and should not be processed.
- * A script is considered non-empty if it contains at least one semicolon.
- */
- if (
- (get_active_script(&u) == NULL)
- || (strchr(get_active_script(&u), ';') == NULL)
- ) {
- syslog(LOG_DEBUG, "Sieve script is empty. No processing is required.");
- return;
- }
-
- syslog(LOG_DEBUG, "Rules found. Performing Sieve processing for <%s>", roomname);
-
- if (CtdlGetRoom(&CC->room, roomname) != 0) {
- syslog(LOG_ERR, "ERROR: cannot load <%s>", roomname);
- return;
- }
-
- /* Initialize the Sieve parser */
-
- res = sieve2_alloc(&sieve2_context);
- if (res != SIEVE2_OK) {
- syslog(LOG_ERR, "sieve2_alloc() returned %d: %s", res, sieve2_errstr(res));
- return;
- }
-
- res = sieve2_callbacks(sieve2_context, ctdl_sieve_callbacks);
- if (res != SIEVE2_OK) {
- syslog(LOG_ERR, "sieve2_callbacks() returned %d: %s", res, sieve2_errstr(res));
- goto BAIL;
- }
-
- /* Validate the script */
-
- struct ctdl_sieve my; /* dummy ctdl_sieve struct just to pass "u" along */
- memset(&my, 0, sizeof my);
- my.u = &u;
- res = sieve2_validate(sieve2_context, &my);
- if (res != SIEVE2_OK) {
- syslog(LOG_ERR, "sieve2_validate() returned %d: %s", res, sieve2_errstr(res));
- goto BAIL;
- }
-
- /* Do something useful */
- u.sieve2_context = sieve2_context;
- orig_lastproc = u.lastproc;
- CtdlForEachMessage(MSGS_GT, u.lastproc, NULL, NULL, NULL, sieve_do_msg, (void *) &u);
-
-BAIL:
- res = sieve2_free(&sieve2_context);
- if (res != SIEVE2_OK) {
- syslog(LOG_ERR, "sieve2_free() returned %d: %s", res, sieve2_errstr(res));
- }
-
- /* Rewrite the config if we have to (we're not the user right now) */
- rewrite_ctdl_sieve_config(&u, (u.lastproc > orig_lastproc) ) ;
-}
-
-
-
-
-#endif
-
-
-
-
-/*
- * Get InBox Rules
- *
- * This is a client-facing function which fetches the user's inbox rules -- it omits all lines containing anything other than a rule.
- */
-void cmd_gibr(char *argbuf) {
-
- if (CtdlAccessCheck(ac_logged_in)) return;
-
- cprintf("%d inbox rules for %s\n", LISTING_FOLLOWS, CC->user.fullname);
-
- struct CtdlMessage *msg = CtdlFetchMessage(CC->user.msgnum_inboxrules, 1, 1);
- if (msg != NULL) {
- if (!CM_IsEmpty(msg, eMesageText)) {
- char *token;
- char *rest = msg->cm_fields[eMesageText];
- while ((token = strtok_r(rest, "\n", &rest))) {
-
- // for backwards compatibility, "# WEBCIT_RULE" is an alias for "rule"
- if (!strncasecmp(token, "# WEBCIT_RULE|", 14)) {
- strcpy(token, "rule|");
- strcpy(&token[5], &token[14]);
- }
-
- // Output only lines containing rules.
- if (!strncasecmp(token, "rule|", 5)) {
- cprintf("%s\n", token);
- }
- }
- }
- CM_Free(msg);
- }
- cprintf("000\n");
-}
-
-
-/*
- * Put InBox Rules
- *
- * User transmits the new inbox rules for the account. They are inserted into the account, replacing the ones already there.
- */
-void cmd_pibr(char *argbuf) {
- if (CtdlAccessCheck(ac_logged_in)) return;
-
- unbuffer_output();
- cprintf("%d send new rules\n", SEND_LISTING);
- char *newrules = CtdlReadMessageBody(HKEY("000"), CtdlGetConfigLong("c_maxmsglen"), NULL, 0);
- StrBuf *NewConfig = NewStrBufPlain("Content-type: application/x-citadel-sieve-config; charset=UTF-8\nContent-transfer-encoding: 8bit\n\n", -1);
-
- char *token;
- char *rest = newrules;
- while ((token = strtok_r(rest, "\n", &rest))) {
- // Accept only lines containing rules
- if (!strncasecmp(token, "rule|", 5)) {
- StrBufAppendBufPlain(NewConfig, token, -1, 0);
- StrBufAppendBufPlain(NewConfig, HKEY("\n"), 0);
- }
- }
- free(newrules);
-
- // Fetch the existing config so we can merge in anything that is NOT a rule
- // (Does not start with "rule|" but has at least one vertical bar)
- struct CtdlMessage *msg = CtdlFetchMessage(CC->user.msgnum_inboxrules, 1, 1);
- if (msg != NULL) {
- if (!CM_IsEmpty(msg, eMesageText)) {
- rest = msg->cm_fields[eMesageText];
- while ((token = strtok_r(rest, "\n", &rest))) {
- // for backwards compatibility, "# WEBCIT_RULE" is an alias for "rule"
- if ((strncasecmp(token, "# WEBCIT_RULE|", 14)) && (strncasecmp(token, "rule|", 5)) && (haschar(token, '|'))) {
- StrBufAppendBufPlain(NewConfig, token, -1, 0);
- StrBufAppendBufPlain(NewConfig, HKEY("\n"), 0);
- }
- }
- }
- CM_Free(msg);
- }
-
- /* we have composed the new configuration , now save it */
- long old_msgnum = CC->user.msgnum_inboxrules;
- char userconfigroomname[ROOMNAMELEN];
- CtdlMailboxName(userconfigroomname, sizeof userconfigroomname, &CC->user, USERCONFIGROOM);
- long new_msgnum = quickie_message("Citadel", NULL, NULL, userconfigroomname, ChrPtr(NewConfig), FMT_RFC822, "inbox rules configuration");
- FreeStrBuf(&NewConfig);
- CtdlGetUserLock(&CC->user, CC->curr_user);
- CC->user.msgnum_inboxrules = new_msgnum;
- CtdlPutUserLock(&CC->user);
- if (old_msgnum > 0) {
- syslog(LOG_DEBUG, "Deleting old message %ld from %s", old_msgnum, userconfigroomname);
- CtdlDeleteMessages(userconfigroomname, &old_msgnum, 1, "");
- }
-}
-
-
-CTDL_MODULE_INIT(sieve)
-{
- if (!threading)
- {
- // ctdl_sieve_init();
- CtdlRegisterProtoHook(cmd_gibr, "GIBR", "Get InBox Rules");
- CtdlRegisterProtoHook(cmd_pibr, "PIBR", "Put InBox Rules");
- // CtdlRegisterSessionHook(perform_sieve_processing, EVT_HOUSE, PRIO_HOUSE + 10);
- // CtdlRegisterCleanupHook(cleanup_sieve);
- }
-
- /* return our module name for the log */
- return "sieve";
-}
projects / citadel.git / commitdiff