masqmail
view src/fail_msg.c @ 407:164468dd0953
Minor refactoring.
| author | markus schnalke <meillo@marmaro.de> |
|---|---|
| date | Wed, 29 Feb 2012 10:37:21 +0100 |
| parents | b27f66555ba8 |
| children |
line source
1 /*
2 ** MasqMail
3 ** Copyright (C) 2000-2001 Oliver Kurth
4 **
5 ** This program is free software; you can redistribute it and/or modify
6 ** it under the terms of the GNU General Public License as published by
7 ** the Free Software Foundation; either version 2 of the License, or
8 ** (at your option) any later version.
9 **
10 ** This program is distributed in the hope that it will be useful,
11 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ** GNU General Public License for more details.
14 **
15 ** You should have received a copy of the GNU General Public License
16 ** along with this program; if not, write to the Free Software
17 ** Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
20 #include <sys/wait.h>
22 #include "masqmail.h"
23 #include "peopen.h"
24 #include "readsock.h"
26 gboolean
27 fail_msg(message *msg, gchar *template, GList *failed_rcpts, gchar *err_fmt,
28 va_list args)
29 {
30 gboolean ok = FALSE;
31 address *ret_path = NULL;
33 /* do not bounce bounces, send to postmaster instead */
34 if (msg->return_path->local_part[0] == '\0') {
35 GList *node;
37 ret_path = create_address_qualified("postmaster", TRUE,
38 conf.host_name);
39 foreach(failed_rcpts, node) {
40 address *addr = (address *) (node->data);
42 if (addr_isequal_parent(addr, ret_path, strcasecmp)) {
43 logwrite(LOG_ALERT, "%s == %s: postmaster "
44 "address failed\n", msg->uid,
45 addr_string(ret_path));
46 return FALSE;
47 }
48 }
49 } else
50 ret_path = copy_address(msg->return_path);
52 DEBUG(1) debugf("sending failure notice to %s.\n",
53 addr_string(ret_path));
55 if (template) {
56 FILE *file;
57 GList *var_table = var_table_conf(var_table_msg(NULL, msg));
58 gchar *err_msg = g_strdup_vprintf(err_fmt, args);
60 var_table = g_list_prepend(var_table,
61 create_pair_string("err_msg", err_msg));
62 g_free(err_msg);
64 if ((file = fopen(template, "r"))) {
65 FILE *out;
66 gchar *cmd;
67 pid_t pid;
69 cmd = g_strdup_printf(SBINDIR "/masqmail -oi -f <> %s@%s", ret_path->local_part, ret_path->domain);
70 if (!(out = peidopen(cmd, "w", environ, &pid,
71 conf.mail_uid, conf.mail_gid))) {
72 logwrite(LOG_ERR, "peopen failed: %s\n",
73 strerror(errno));
74 } else {
75 gchar fmt[256], line[256];
76 int status, ret;
78 while ((ret = read_sockline(file, fmt, 256, 0, 0)) > 0) {
79 if (fmt[0] == '@') {
80 GList *node;
81 if (strncmp(fmt, "@failed_rcpts", 13) == 0) {
82 foreach(failed_rcpts, node) {
83 address *rcpt = (address *) (node->data);
84 fprintf(out, "\t%s\n", addr_string(rcpt));
85 }
86 } else if (strncmp(fmt, "@msg_headers", 12) == 0) {
87 foreach(msg->hdr_list, node) {
88 header *hdr = (header *) (node->data);
89 fputs(hdr->header, out);
90 }
91 } else if (strncmp(fmt, "@msg_body", 9) == 0) {
92 /* we may have to read the data at this point and remember if we did */
93 gboolean flag = (msg->data_list == NULL);
94 if (flag) {
95 if (!spool_read_data(msg)) {
96 logwrite(LOG_ALERT, "could not open data spool file %s\n", msg->uid);
97 }
98 }
99 foreach(msg->data_list, node) {
100 gchar *line = (gchar *) (node->data);
101 fputs(line, out);
102 }
103 if (flag)
104 msg_free_data(msg);
105 }
106 } else {
107 expand(var_table, fmt, line, 256);
108 fputs(line, out);
109 }
110 }
112 fclose(out);
113 waitpid(pid, &status, 0);
114 if ((WEXITSTATUS(status) != 0) ||
115 WIFSIGNALED(status)) {
116 if (WEXITSTATUS(status)) {
117 logwrite(LOG_WARNING, "child returned %d\n", WEXITSTATUS(status));
118 }
119 if (WIFSIGNALED(status)) {
120 logwrite(LOG_WARNING, "child got signal: %d\n", WTERMSIG(status));
121 }
122 } else {
123 ok = TRUE;
124 }
125 }
126 g_free(cmd);
127 fclose(file);
128 } else {
129 logwrite(LOG_ALERT, "could not open failure message "
130 "template %s: %s\n",
131 conf.errmsg_file, strerror(errno));
132 }
134 destroy_table(var_table);
135 }
137 destroy_address(ret_path);
139 return ok;
140 }
142 /*
143 ** ival : |--|--|----|--------|--------|
144 ** warned: |-------W-------------W------
145 ** result: |nnnyyyynnnnyyyyyyyyyynnnnnnn
146 */
147 static gboolean
148 warn_msg_is_due(message *msg)
149 {
150 time_t now = time(NULL);
152 GList *node;
153 for (node = g_list_last(conf.warn_intervals); node;
154 node = g_list_previous(node)) {
155 gchar *str_ival = (gchar *) (node->data);
156 gint ival = time_interval(str_ival);
157 if (ival < 0) {
158 logwrite(LOG_WARNING, "invalid time interval: %s\n",
159 str_ival);
160 } else {
161 DEBUG(5) debugf("ival = %d\n", ival);
162 DEBUG(5) debugf("now - msg->received_time = %d\n",
163 now - msg->received_time);
164 if ((now - msg->received_time) > ival) {
165 if (msg->warned_time == 0) {
166 return TRUE;
167 }
168 if ((msg->warned_time - msg->received_time) <
169 ival) {
170 return TRUE;
171 }
172 }
173 }
174 }
175 return FALSE;
176 }
178 gboolean
179 warn_msg(message *msg, gchar *template, GList *defered_rcpts, gchar *err_fmt,
180 va_list args)
181 {
182 time_t now = time(NULL);
184 if (warn_msg_is_due(msg)) {
185 if (fail_msg(msg, template, defered_rcpts, err_fmt, args)) {
186 msg->warned_time = now;
187 return TRUE;
188 } else {
189 return FALSE;
190 }
191 }
192 return TRUE;
193 }