X-Git-Url: https://code.citadel.org/?a=blobdiff_plain;f=citadel%2Fmodules%2Fsmtp%2Fserv_smtpclient.c;h=b8081fa2c396369514685f9f3c280fa80a9dc9e7;hb=78a4a16e111b8d56d72ff2714995282ddb8728e0;hp=372dddbc49e8abdcbde463560a18c7dada792538;hpb=3f6d0a56adb237cd673176e75605ea2e038b0860;p=citadel.git

diff --git a/citadel/modules/smtp/serv_smtpclient.c b/citadel/modules/smtp/serv_smtpclient.c
index 372dddbc4..b8081fa2c 100644
--- a/citadel/modules/smtp/serv_smtpclient.c
+++ b/citadel/modules/smtp/serv_smtpclient.c
@@ -3,7 +3,7 @@
  *
  * This is the new, exciting, clever version that makes libcurl do all the work  :)
  *
- * Copyright (c) 1997-2017 by the citadel.org team
+ * Copyright (c) 1997-2018 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 as published
@@ -22,14 +22,14 @@
 #include <sysconfig.h>
 
 #if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
+#include <sys/time.h>
+#include <time.h>
 #else
-# if HAVE_SYS_TIME_H
-#  include <sys/time.h>
-# else
-#  include <time.h>
-# endif
+#if HAVE_SYS_TIME_H
+#include <sys/time.h>
+#else
+#include <time.h>
+#endif
 #endif
 
 #include <ctype.h>
@@ -68,7 +68,8 @@ int smtpq_alloc = 0;		// current allocation size for smtpq
 /*
  * Initialize the SMTP outbound queue
  */
-void smtp_init_spoolout(void) {
+void smtp_init_spoolout(void)
+{
 	struct ctdlroom qrbuf;
 
 	/*
@@ -93,7 +94,7 @@ void smtp_init_spoolout(void) {
  * not happen because the delivery instructions message does not
  * contain a recipient.
  */
-int smtp_aftersave(struct CtdlMessage *msg, recptypes *recps)
+int smtp_aftersave(struct CtdlMessage *msg, recptypes * recps)
 {
 	if ((recps != NULL) && (recps->num_internet > 0)) {
 		struct CtdlMessage *imsg = NULL;
@@ -105,14 +106,10 @@ int smtp_aftersave(struct CtdlMessage *msg, recptypes *recps)
 		syslog(LOG_DEBUG, "smtpclient: generating delivery instructions");
 
 		StrBufPrintf(SpoolMsg,
-			     "Content-type: "SPOOLMIME"\n"
+			     "Content-type: " SPOOLMIME "\n"
 			     "\n"
 			     "msgid|%s\n"
-			     "submitted|%ld\n"
-			     "bounceto|%s\n",
-			     msg->cm_fields[eVltMsgNum],
-			     (long)time(NULL),
-			     recps->bounce_to);
+			     "submitted|%ld\n" "bounceto|%s\n", msg->cm_fields[eVltMsgNum], (long) time(NULL), recps->bounce_to);
 
 		if (recps->envelope_from != NULL) {
 			StrBufAppendBufPlain(SpoolMsg, HKEY("envelope_from|"), 0);
@@ -126,7 +123,7 @@ int smtp_aftersave(struct CtdlMessage *msg, recptypes *recps)
 		}
 
 		nTokens = num_tokens(recps->recp_internet, '|');
-	  	for (i = 0; i < nTokens; i++) {
+		for (i = 0; i < nTokens; i++) {
 			long len;
 			len = extract_token(recipient, recps->recp_internet, i, '|', sizeof recipient);
 			if (len > 0) {
@@ -164,7 +161,7 @@ static size_t upload_source(void *ptr, size_t size, size_t nmemb, void *userp)
 	sendbytes = (size * nmemb);
 
 	if (s->bytes_sent >= s->bytes_total) {
-		return(0);					// we are donez0r
+		return (0);	// no data remaining; we are done
 	}
 
 	if (sendbytes > (s->bytes_total - s->bytes_sent)) {
@@ -172,11 +169,34 @@ static size_t upload_source(void *ptr, size_t size, size_t nmemb, void *userp)
 	}
 
 	send_this = ChrPtr(s->TheMessage);
-	send_this += s->bytes_sent;				// start where we last left off
+	send_this += s->bytes_sent;	// start where we last left off
 
 	memcpy(ptr, send_this, sendbytes);
 	s->bytes_sent += sendbytes;
-	return(sendbytes);					// return the number of bytes _actually_ copied
+	return (sendbytes);	// return the number of bytes _actually_ copied
+}
+
+
+/*
+ * The libcurl API doesn't provide a way to capture the actual SMTP result message returned
+ * by the remote server.  This is an ugly way to extract it, by capturing debug data from
+ * the library and filtering on the lines we want.
+ */
+int ctdl_libcurl_smtp_debug_callback(CURL * handle, curl_infotype type, char *data, size_t size, void *userptr)
+{
+	if (type != CURLINFO_HEADER_IN)
+		return 0;
+	if (!userptr)
+		return 0;
+	char *debugbuf = (char *) userptr;
+
+	int len = strlen(debugbuf);
+	if (len + size > SIZ)
+		return 0;
+
+	memcpy(&debugbuf[len], data, size);
+	debugbuf[len + size] = 0;
+	return 0;
 }
 
 
@@ -184,7 +204,7 @@ static size_t upload_source(void *ptr, size_t size, size_t nmemb, void *userp)
  * Attempt a delivery to one recipient.
  * Returns a three-digit SMTP status code.
  */
-int smtp_attempt_delivery(long msgid, char *recp, char *envelope_from)
+int smtp_attempt_delivery(long msgid, char *recp, char *envelope_from, char *response)
 {
 	struct smtpmsgsrc s;
 	char *fromaddr = NULL;
@@ -203,79 +223,104 @@ int smtp_attempt_delivery(long msgid, char *recp, char *envelope_from)
 
 	syslog(LOG_DEBUG, "smtpclient: smtp_attempt_delivery(%ld, %s)", msgid, recp);
 
-	process_rfc822_addr(recp, user, node, name);		// split recipient address into username, hostname, displayname
+	process_rfc822_addr(recp, user, node, name);	// split recipient address into username, hostname, displayname
 	num_mx = getmx(mxes, node);
 	if (num_mx < 1) {
-		return(421);
+		return (421);
 	}
 
 	CC->redirect_buffer = NewStrBufPlain(NULL, SIZ);
 	CtdlOutputMsg(msgid, MT_RFC822, HEADERS_ALL, 0, 1, NULL, 0, NULL, &fromaddr, NULL);
 	s.TheMessage = CC->redirect_buffer;
-	s.bytes_total =  StrLength(CC->redirect_buffer);
+	s.bytes_total = StrLength(CC->redirect_buffer);
 	s.bytes_sent = 0;
 	CC->redirect_buffer = NULL;
 	response_code = 421;
 
-	for (i=0; ((i<num_mx)&&((response_code/100)==4)); ++i) {				// keep trying MXes until one works or we run out
-		response_code = 421;								// default 421 makes non-protocol errors transient
-		s.bytes_sent = 0;								// rewind our buffer in case we try multiple MXes
+	for (i = 0; ((i < num_mx) && ((response_code / 100) == 4)); ++i) {	// keep trying MXes until one works or we run out
+		response_code = 421;	// default 421 makes non-protocol errors transient
+		s.bytes_sent = 0;	// rewind our buffer in case we try multiple MXes
 
 		curl = curl_easy_init();
 		if (curl) {
+			response[0] = 0;
 
 			if (!IsEmptyStr(envelope_from)) {
 				curl_easy_setopt(curl, CURLOPT_MAIL_FROM, envelope_from);
-			}
-			else {
+			} else {
 				curl_easy_setopt(curl, CURLOPT_MAIL_FROM, fromaddr);
 			}
-	
+
 			recipients = curl_slist_append(recipients, recp);
 			curl_easy_setopt(curl, CURLOPT_MAIL_RCPT, recipients);
 			curl_easy_setopt(curl, CURLOPT_READFUNCTION, upload_source);
 			curl_easy_setopt(curl, CURLOPT_READDATA, &s);
-			curl_easy_setopt(curl, CURLOPT_UPLOAD, 1);						// tell libcurl we are uploading
-			curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);						// Time out after 20 seconds
-			// curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_TRY); athos-mn
+			curl_easy_setopt(curl, CURLOPT_UPLOAD, 1);	// tell libcurl we are uploading
+			curl_easy_setopt(curl, CURLOPT_TIMEOUT, 20L);	// Time out after 20 seconds
+			if (CtdlGetConfigInt("c_smtpclient_disable_starttls") == 0) {
+				curl_easy_setopt(curl, CURLOPT_USE_SSL, CURLUSESSL_TRY);	// Attempt STARTTLS if offered
+			}
 			curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L);
 			curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L);
-			// curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, curl_error_buffer);
+			curl_easy_setopt(curl, CURLOPT_DEBUGFUNCTION, ctdl_libcurl_smtp_debug_callback);
+			curl_easy_setopt(curl, CURLOPT_DEBUGDATA, (void *) response);
+			curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
 
 			// Construct an SMTP URL in the form of:
-			// 	smtp[s]://target_host/source_host
+			//      smtp[s]://target_host/source_host
 			// This looks weird but libcurl uses that last part to set our name for EHLO or HELO.
 			// We check for "smtp://" and "smtps://" because the admin may have put those prefixes in a smart-host entry.
 			// If there is no prefix we add "smtp://"
 			extract_token(try_this_mx, mxes, i, '|', (sizeof try_this_mx - 7));
-			snprintf(smtp_url, sizeof smtp_url,
-				"%s%s/%s",
-				(((!strncasecmp(try_this_mx, HKEY("smtp://"))) || (!strncasecmp(try_this_mx, HKEY("smtps://")))) ? "" : "smtp://"),
-				try_this_mx,
-				CtdlGetConfigStr("c_fqdn")
-			);
+			snprintf(smtp_url, sizeof smtp_url, "%s%s/%s", (((!strncasecmp(try_this_mx, HKEY("smtp://")))
+									 ||
+									 (!strncasecmp
+									  (try_this_mx,
+									   HKEY("smtps://")))) ? "" : "smtp://"),
+				 try_this_mx, CtdlGetConfigStr("c_fqdn")
+			    );
 			curl_easy_setopt(curl, CURLOPT_URL, smtp_url);
-			syslog(LOG_DEBUG, "smtpclient: trying %s", smtp_url);				// send the message
+			syslog(LOG_DEBUG, "smtpclient: trying %s", smtp_url);	// send the message
 			res = curl_easy_perform(curl);
 			curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
-			syslog(LOG_DEBUG, "smtpclient: libcurl returned %d (%s) , SMTP response %ld",
-				res, curl_easy_strerror(res), response_code
-			);
+			syslog(LOG_DEBUG,
+			       "smtpclient: libcurl returned %d (%s) , SMTP response %ld",
+			       res, curl_easy_strerror(res), response_code);
 
-			if ((res != CURLE_OK) && (response_code == 0)) {				// check for errors
+			if ((res != CURLE_OK) && (response_code == 0)) {	// check for errors
 				response_code = 421;
 			}
 
 			curl_slist_free_all(recipients);
-			recipients = NULL;								// this gets reused; avoid double-free
+			recipients = NULL;	// this gets reused; avoid double-free
 			curl_easy_cleanup(curl);
-			curl = NULL;									// this gets reused; avoid double-free
+			curl = NULL;	// this gets reused; avoid double-free
+
+			/* Trim the error message buffer down to just the actual message */
+			char response_code_str[4];
+			snprintf(response_code_str, sizeof response_code_str, "%ld", response_code);
+			char *respstart = strstr(response, response_code_str);
+			if (respstart == NULL) {
+				strcpy(response, smtpstatus(response_code));
+			} else {
+				strcpy(response, respstart);
+				char *p;
+				for (p = response; *p != 0; ++p) {
+					if (*p == '\n')
+						*p = ' ';
+					if (*p == '\r')
+						*p = ' ';
+					if (!isprint(*p))
+						*p = ' ';
+				}
+			}
 		}
 	}
 
 	FreeStrBuf(&s.TheMessage);
-	if (fromaddr) free(fromaddr);
-	return((int)response_code);
+	if (fromaddr)
+		free(fromaddr);
+	return ((int) response_code);
 }
 
 
@@ -292,6 +337,7 @@ void smtp_process_one_msg(long qmsgnum)
 	int num_delayed = 0;
 	long deletes[2];
 	int delete_this_queue = 0;
+	char server_response[SIZ];
 
 	msg = CtdlFetchMessage(qmsgnum, 1, 1);
 	if (msg == NULL) {
@@ -306,13 +352,13 @@ void smtp_process_one_msg(long qmsgnum)
 	// if the queue message has any CRLF's convert them to LF's
 	char *crlf = NULL;
 	while (crlf = strstr(instr, "\r\n"), crlf != NULL) {
-		strcpy(crlf, crlf+1);
+		strcpy(crlf, crlf + 1);
 	}
 
 	// Strip out the headers and we are now left with just the instructions.
 	char *soi = strstr(instr, "\n\n");
 	if (soi) {
-		strcpy(instr, soi+2);
+		strcpy(instr, soi + 2);
 	}
 
 	long msgid = 0;
@@ -322,26 +368,29 @@ void smtp_process_one_msg(long qmsgnum)
 	char *envelope_from = NULL;
 
 	char cfgline[SIZ];
-	for (i=0; i<num_tokens(instr, '\n'); ++i) {
+	for (i = 0; i < num_tokens(instr, '\n'); ++i) {
 		extract_token(cfgline, instr, i, '\n', sizeof cfgline);
-		if (!strncasecmp(cfgline, HKEY("msgid|")))		msgid = atol(&cfgline[6]);
-		if (!strncasecmp(cfgline, HKEY("submitted|")))		submitted = atol(&cfgline[10]);
-		if (!strncasecmp(cfgline, HKEY("attempted|")))		attempted = atol(&cfgline[10]);
-		if (!strncasecmp(cfgline, HKEY("bounceto|")))		bounceto = strdup(&cfgline[9]);
-		if (!strncasecmp(cfgline, HKEY("envelope_from|")))	envelope_from = strdup(&cfgline[14]);
+		if (!strncasecmp(cfgline, HKEY("msgid|")))
+			msgid = atol(&cfgline[6]);
+		if (!strncasecmp(cfgline, HKEY("submitted|")))
+			submitted = atol(&cfgline[10]);
+		if (!strncasecmp(cfgline, HKEY("attempted|")))
+			attempted = atol(&cfgline[10]);
+		if (!strncasecmp(cfgline, HKEY("bounceto|")))
+			bounceto = strdup(&cfgline[9]);
+		if (!strncasecmp(cfgline, HKEY("envelope_from|")))
+			envelope_from = strdup(&cfgline[14]);
 	}
 
 	int should_try_now = 0;
-	if (attempted < submitted) {				// If no attempts have been made yet, try now
+	if (attempted < submitted) {	// If no attempts have been made yet, try now
 		should_try_now = 1;
-	}
-	else if ((attempted - submitted) <= 14400) {
-		if ((time(NULL) - attempted) > 1800) {		// First four hours, retry every 30 minutes
+	} else if ((attempted - submitted) <= 14400) {
+		if ((time(NULL) - attempted) > 1800) {	// First four hours, retry every 30 minutes
 			should_try_now = 1;
 		}
-	}
-	else {
-		if ((time(NULL) - attempted) > 14400) {		// After that, retry once every 4 hours
+	} else {
+		if ((time(NULL) - attempted) > 14400) {	// After that, retry once every 4 hours
 			should_try_now = 1;
 		}
 	}
@@ -349,35 +398,38 @@ void smtp_process_one_msg(long qmsgnum)
 	if (should_try_now) {
 		syslog(LOG_DEBUG, "smtpclient: %ld attempting delivery now", qmsgnum);
 		StrBuf *NewInstr = NewStrBuf();
-		StrBufAppendPrintf(NewInstr, "Content-type: "SPOOLMIME"\n\n");
+		StrBufAppendPrintf(NewInstr, "Content-type: " SPOOLMIME "\n\n");
 		StrBufAppendPrintf(NewInstr, "msgid|%ld\n", msgid);
 		StrBufAppendPrintf(NewInstr, "submitted|%ld\n", submitted);
-		if (bounceto) StrBufAppendPrintf(NewInstr, "bounceto|%s\n", bounceto);
-		if (envelope_from) StrBufAppendPrintf(NewInstr, "envelope_from|%s\n", envelope_from);
+		if (bounceto)
+			StrBufAppendPrintf(NewInstr, "bounceto|%s\n", bounceto);
+		if (envelope_from)
+			StrBufAppendPrintf(NewInstr, "envelope_from|%s\n", envelope_from);
 
-		for (i=0; i<num_tokens(instr, '\n'); ++i) {
+		for (i = 0; i < num_tokens(instr, '\n'); ++i) {
 			extract_token(cfgline, instr, i, '\n', sizeof cfgline);
 			if (!strncasecmp(cfgline, HKEY("remote|"))) {
 				char recp[SIZ];
 				int previous_result = extract_int(cfgline, 2);
-				if ((previous_result == 0) || (previous_result == 4)) {
+				if ((previous_result == 0)
+				    || (previous_result == 4)) {
 					int new_result = 421;
 					extract_token(recp, cfgline, 1, '|', sizeof recp);
-					new_result = smtp_attempt_delivery(msgid, recp, envelope_from);
-					syslog(LOG_DEBUG, "smtpclient: recp: <%s> , result: %d (%s)", recp, new_result, smtpstatus(new_result));
+					new_result = smtp_attempt_delivery(msgid, recp, envelope_from, server_response);
+					syslog(LOG_DEBUG,
+					       "smtpclient: recp: <%s> , result: %d (%s)", recp, new_result, server_response);
 					if ((new_result / 100) == 2) {
 						++num_success;
-					}
-					else {
+					} else {
 						if ((new_result / 100) == 5) {
 							++num_fail;
-						}
-						else {
+						} else {
 							++num_delayed;
 						}
-						StrBufAppendPrintf(NewInstr, "remote|%s|%ld|%ld (%s)\n",
-							recp, (new_result / 100) , new_result, smtpstatus(new_result)
-						);
+						StrBufAppendPrintf
+						    (NewInstr,
+						     "remote|%s|%ld|%ld (%s)\n",
+						     recp, (new_result / 100), new_result, server_response);
 					}
 				}
 			}
@@ -388,7 +440,9 @@ void smtp_process_one_msg(long qmsgnum)
 		// All deliveries have now been attempted.  Now determine the disposition of this queue entry.
 
 		time_t age = time(NULL) - submitted;
-		syslog(LOG_DEBUG, "smtpclient: submission age: %ldd%ldh%ldm%lds", (age/86400) , ((age%86400)/3600) , ((age%3600)/60) , (age%60));
+		syslog(LOG_DEBUG,
+		       "smtpclient: submission age: %ldd%ldh%ldm%lds",
+		       (age / 86400), ((age % 86400) / 3600), ((age % 3600) / 60), (age % 60));
 		syslog(LOG_DEBUG, "smtpclient: num_success=%d , num_fail=%d , num_delayed=%d", num_success, num_fail, num_delayed);
 
 		// If there are permanent fails on this attempt, deliver a bounce to the user.
@@ -396,48 +450,46 @@ void smtp_process_one_msg(long qmsgnum)
 		if (num_fail > 0) {
 			smtp_do_bounce(ChrPtr(NewInstr), SDB_BOUNCE_FATALS);
 		}
-
 		// If all deliveries have either succeeded or failed, we are finished with this queue entry.
 		//
 		if (num_delayed == 0) {
 			delete_this_queue = 1;
 		}
-
-		// If it's been more than five days, give up and tell the sender we #failed
+		// If it's been more than five days, give up and tell the sender that delivery failed
 		//
 		else if ((time(NULL) - submitted) > SMTP_DELIVER_FAIL) {
 			smtp_do_bounce(ChrPtr(NewInstr), SDB_BOUNCE_ALL);
 			delete_this_queue = 1;
 		}
-
-		// If it's been more than four hours but less than five days, warn the sender that I've Been Delayed
+		// If it's been more than four hours but less than five days, warn the sender that delivery is delayed
 		//
-		else if ( ((attempted - submitted) < SMTP_DELIVER_WARN) && ((time(NULL) - submitted) >= SMTP_DELIVER_WARN) ) {
+		else if (((attempted - submitted) < SMTP_DELIVER_WARN)
+			 && ((time(NULL) - submitted) >= SMTP_DELIVER_WARN)) {
 			smtp_do_bounce(ChrPtr(NewInstr), SDB_WARN);
 		}
-	
+
 		if (delete_this_queue) {
 			syslog(LOG_DEBUG, "smtpclient: %ld deleting", qmsgnum);
 			deletes[0] = qmsgnum;
 			deletes[1] = msgid;
 			CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, deletes, 2, "");
-			FreeStrBuf(&NewInstr);						// We have to free NewInstr here, no longer needed
-		}
-		else {
+			FreeStrBuf(&NewInstr);	// We have to free NewInstr here, no longer needed
+		} else {
 			// replace the old queue entry with the new one
 			syslog(LOG_DEBUG, "smtpclient: %ld rewriting", qmsgnum);
-			msg = convert_internet_message_buf(&NewInstr);			// This function will free NewInstr for us
+			msg = convert_internet_message_buf(&NewInstr);	// This function will free NewInstr for us
 			CtdlSubmitMsg(msg, NULL, SMTP_SPOOLOUT_ROOM, 0);
 			CM_Free(msg);
 			CtdlDeleteMessages(SMTP_SPOOLOUT_ROOM, &qmsgnum, 1, "");
 		}
-	}
-	else {
+	} else {
 		syslog(LOG_DEBUG, "smtpclient: %ld retry time not reached", qmsgnum);
 	}
 
-	if (bounceto != NULL)		free(bounceto);
-	if (envelope_from != NULL)	free(envelope_from);
+	if (bounceto != NULL)
+		free(bounceto);
+	if (envelope_from != NULL)
+		free(envelope_from);
 	free(instr);
 }
 
@@ -445,7 +497,8 @@ void smtp_process_one_msg(long qmsgnum)
 /*
  * Callback for smtp_do_queue()
  */
-void smtp_add_msg(long msgnum, void *userdata) {
+void smtp_add_msg(long msgnum, void *userdata)
+{
 
 	if (smtpq == NULL) {
 		smtpq_count = 0;
@@ -465,7 +518,8 @@ void smtp_add_msg(long msgnum, void *userdata) {
 /*
  * Run through the queue sending out messages.
  */
-void smtp_do_queue(void) {
+void smtp_do_queue(void)
+{
 	int i = 0;
 
 	/*
@@ -474,27 +528,27 @@ void smtp_do_queue(void) {
 	 * don't really require extremely fine granularity here, we'll do it
 	 * with a static variable instead.
 	 */
-	if (doing_smtpclient) return;
+	if (doing_smtpclient)
+		return;
 	doing_smtpclient = 1;
 
 	syslog(LOG_DEBUG, "smtpclient: start queue run");
-	pthread_setspecific(MyConKey, (void *)&smtp_client_CC);
+	pthread_setspecific(MyConKey, (void *) &smtp_client_CC);
 
 	if (CtdlGetRoom(&CC->room, SMTP_SPOOLOUT_ROOM) != 0) {
 		syslog(LOG_WARNING, "Cannot find room <%s>", SMTP_SPOOLOUT_ROOM);
 		doing_smtpclient = 0;
 		return;
 	}
-
 	// Put the queue in memory so we can close the db cursor
 	CtdlForEachMessage(MSGS_ALL, 0L, NULL, SPOOLMIME, NULL, smtp_add_msg, NULL);
 
 	// We are ready to run through the queue now.
-	for (i=0; i<smtpq_count; ++i) {
+	for (i = 0; i < smtpq_count; ++i) {
 		smtp_process_one_msg(smtpq[i]);
 	}
 
-	smtpq_count = 0;		// don't free it, we will use this memory on the next run
+	smtpq_count = 0;	// don't free it, we will use this memory on the next run
 	doing_smtpclient = 0;
 	syslog(LOG_DEBUG, "smtpclient: end queue run");
 }
@@ -505,8 +559,7 @@ void smtp_do_queue(void) {
  */
 CTDL_MODULE_INIT(smtpclient)
 {
-	if (!threading)
-	{
+	if (!threading) {
 		CtdlFillSystemContext(&smtp_client_CC, "SMTP_Send");
 		CtdlRegisterMessageHook(smtp_aftersave, EVT_AFTERSAVE);
 		CtdlRegisterSessionHook(smtp_do_queue, EVT_TIMER, PRIO_AGGR + 50);
@@ -514,5 +567,5 @@ CTDL_MODULE_INIT(smtpclient)
 	}
 
 	/* return our module id for the log */
- 	return "smtpclient";
+	return "smtpclient";
 }