masqmail-0.2

view src/fail_msg.c @ 171:349518b940db

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added support for STARTTLS wrappers added the route config option `instant_helo' which causes masqmail, as SMTP client, not to wait for the server's 220 greeting. Instead if says EHLO right at once. You'll need this for STARTTLS wrappers that usually eat the greeting line.
author meillo@marmaro.de
date Thu, 22 Jul 2010 23:30:05 +0200
parents 26e34ae9a3e3
children
line source
1 /* MasqMail
2 Copyright (C) 2000-2001 Oliver Kurth
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 */
18
19 #include <sys/wait.h>
20
21 #include "masqmail.h"
22 #include "peopen.h"
23 #include "readsock.h"
24
25 gboolean
26 fail_msg(message * msg, gchar * template, GList * failed_rcpts, gchar * err_fmt, va_list args)
27 {
28 gboolean ok = FALSE;
29 address *ret_path = NULL;
30
31 /* do not bounce bounces, send to postmaster instead */
32 if (msg->return_path->local_part[0] == '\0') {
33 GList *node;
34
35 ret_path = create_address_qualified("postmaster", TRUE, conf.host_name);
36 foreach(failed_rcpts, node) {
37 address *addr = (address *) (node->data);
38 if (addr_isequal_parent(addr, ret_path)) {
39 logwrite(LOG_ALERT, "%s == %s: postmaster address failed\n", msg->uid, addr_string(ret_path));
40 return FALSE;
41 }
42 }
43 } else
44 ret_path = copy_address(msg->return_path);
45
46 DEBUG(1) debugf("sending failure notice to %s.\n", addr_string(ret_path));
47
48 if (template) {
49 FILE *file;
50 GList *var_table = var_table_conf(var_table_msg(NULL, msg));
51 gchar *err_msg = g_strdup_vprintf(err_fmt, args);
52
53 var_table = g_list_prepend(var_table, create_pair_string("err_msg", err_msg));
54 g_free(err_msg);
55
56 if ((file = fopen(template, "r"))) {
57 FILE *out;
58 gchar *cmd;
59 pid_t pid;
60
61 // cmd = g_strdup_printf(SBINDIR"/masqmail -oi -f \"<>\" %s@%s",
62 // ret_path->local_part, ret_path->domain);
63 cmd = g_strdup_printf(SBINDIR "/masqmail -oi -f <> %s@%s", ret_path->local_part, ret_path->domain);
64 if ((out = peidopen(cmd, "w", environ, &pid, conf.mail_uid, conf.mail_gid))) {
65 gchar fmt[256], line[256];
66 int status, ret;
67
68 while ((ret = read_sockline(file, fmt, 256, 0, 0)) > 0) {
69 if (fmt[0] == '@') {
70 GList *node;
71 if (strncmp(fmt, "@failed_rcpts", 13) == 0) {
72 foreach(failed_rcpts, node) {
73 address *rcpt = (address *) (node->data);
74 fprintf(out, "\t%s\n", addr_string(rcpt));
75 }
76 } else if (strncmp(fmt, "@msg_headers", 12) == 0) {
77 foreach(msg->hdr_list, node) {
78 header *hdr = (header *) (node->data);
79 fputs(hdr->header, out);
80 }
81 } else if (strncmp(fmt, "@msg_body", 9) == 0) {
82 /* we may have to read the data at this point and remember if we did */
83 gboolean flag = (msg->data_list == NULL);
84 if (flag) {
85 if (!spool_read_data(msg)) {
86 logwrite(LOG_ALERT, "could not open data spool file %s\n", msg->uid);
87 }
88 }
89 foreach(msg->data_list, node) {
90 gchar *line = (gchar *) (node->data);
91 fputs(line, out);
92 }
93 if (flag)
94 msg_free_data(msg);
95 }
96 } else {
97 expand(var_table, fmt, line, 256);
98 fputs(line, out);
99 }
100 }
101
102 fclose(out);
103 waitpid(pid, &status, 0);
104 if ((WEXITSTATUS(status) != EXIT_SUCCESS) || WIFSIGNALED(status)) {
105 if (WEXITSTATUS(status) != EXIT_SUCCESS)
106 logwrite(LOG_WARNING, "child returned %d\n", WEXITSTATUS(status));
107 if (WIFSIGNALED(status))
108 logwrite(LOG_WARNING, "child got signal: %d\n", WTERMSIG(status));
109 } else
110 ok = TRUE;
111 } else {
112 logwrite(LOG_ERR, "peopen failed: %s\n", strerror(errno));
113 }
114 g_free(cmd);
115 fclose(file);
116 } else
117 logwrite(LOG_ALERT, "could not open failure message template %s: %s\n", conf.errmsg_file, strerror(errno));
118
119 destroy_table(var_table);
120 }
121
122 destroy_address(ret_path);
123
124 return ok;
125 }
126
127 /*
128 ival : |--|--|----|--------|--------|
129 warned: |-------W-------------W------
130 result: |nnnyyyynnnnyyyyyyyyyynnnnnnn
131 */
132
133 static gboolean
134 warn_msg_is_due(message * msg)
135 {
136 time_t now = time(NULL);
137 gint dummy;
138
139 GList *node;
140 for (node = g_list_last(conf.warn_intervals); node; node = g_list_previous(node)) {
141 gchar *str_ival = (gchar *) (node->data);
142 gint ival = time_interval(str_ival, &dummy);
143 if (ival >= 0) {
144 DEBUG(5) debugf("ival = %d\n", ival);
145 DEBUG(5) debugf("now - msg->received_time = %d\n", now - msg->received_time);
146 if ((now - msg->received_time) > ival) {
147 if (msg->warned_time != 0) {
148 if ((msg->warned_time - msg->received_time) < ival)
149 return TRUE;
150 } else
151 return TRUE;
152 }
153 } else
154 logwrite(LOG_WARNING, "invalid time interval: %s\n", str_ival);
155 }
156 return FALSE;
157 }
158
159 gboolean
160 warn_msg(message * msg, gchar * template, GList * defered_rcpts, gchar * err_fmt, va_list args)
161 {
162 time_t now = time(NULL);
163
164 if (warn_msg_is_due(msg)) {
165 if (fail_msg(msg, template, defered_rcpts, err_fmt, args)) {
166 msg->warned_time = now;
167 return TRUE;
168 } else
169 return FALSE;
170 }
171 return TRUE;
172 }