masqmail

view src/queue.c @ 281:ea5f86e0a81c

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modes are now enforced exclusive Other MTAs (exim, postfix) are more relaxing, but as combinations of exclusive modes are senseless we behave more obvious if we fail early. This makes understanding the behavior easier too.
author markus schnalke <meillo@marmaro.de>
date Tue, 07 Dec 2010 14:04:56 -0300
parents 5a0e8ed56c2a
children a7a387253b2f
line source
1 /* MasqMail
2 Copyright (C) 1999-2001 Oliver Kurth
3 Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 */
19
20 #include <sys/stat.h>
21 #include <glob.h>
22
23 #include "masqmail.h"
24
25 static void
26 mix_arr(int *buf, int len)
27 {
28 int i;
29
30 for (i = 0; i < len; i++)
31 buf[i] = i;
32 for (i = 0; i < len - 1; i++) {
33 int j = (int) ((float) (len - i) * ((float) rand()) / (RAND_MAX + 1.0));
34 int tmp;
35
36 if (i != j) {
37 tmp = buf[i];
38 buf[i] = buf[j];
39 buf[j] = tmp;
40 }
41 }
42 }
43
44 GList*
45 read_queue(gboolean do_readdata)
46 {
47 GList *msg_list = NULL;
48 glob_t gl;
49 gchar *pattern;
50 int i, *idx_arr;
51
52 /* Escaping the question marks prevents them from being
53 interpreted as trigraphs */
54 pattern = g_strdup_printf("%s/input/?????\?-??\?-?\?-H", conf.spool_dir);
55 gl.gl_offs = 0;
56 glob(pattern, 0, NULL, &gl);
57
58 g_free(pattern);
59
60 DEBUG(4) {
61 int i;
62 for (i = 0; i < gl.gl_pathc; i++) {
63 debugf("spoolfile: %s\n", gl.gl_pathv[i]);
64 }
65 }
66
67 idx_arr = g_malloc(sizeof(int) * gl.gl_pathc);
68 mix_arr(idx_arr, gl.gl_pathc);
69
70 for (i = 0; i < gl.gl_pathc; i++) {
71 gchar *uid;
72
73 /* copy 13 chars, offset spooldir path + 7 chars for /input/ */
74 /* uid length = 6 chars + '-' + 3 chars + '-' + 2 = 13 chars */
75 uid = g_strndup(&(gl.gl_pathv[idx_arr[i]][strlen(conf.spool_dir) + 7]), 13);
76
77 DEBUG(5) debugf("uid: %s\n", uid);
78
79 msg_list = g_list_append(msg_list, msg_spool_read(uid, do_readdata));
80
81 DEBUG(5) debugf("after read spool file for %s\n", uid);
82
83 g_free(uid);
84 }
85 return msg_list;
86 }
87
88 gboolean
89 queue_run()
90 {
91 GList *msg_list;
92 gboolean ok = TRUE;
93
94 logwrite(LOG_NOTICE, "Starting queue run.\n");
95 msg_list = read_queue(FALSE);
96 if (msg_list) {
97 ok = deliver_msg_list(msg_list, DLVR_ALL);
98 DEBUG(5) debugf(" deliver_msg_list() returned: %d\n", ok);
99 destroy_msg_list(msg_list);
100 }
101 logwrite(LOG_NOTICE, "Finished queue run.\n");
102
103 return ok;
104 }
105
106 gboolean
107 queue_run_online()
108 {
109 GList *msg_list;
110 gboolean ok = TRUE;
111
112 logwrite(LOG_NOTICE, "Starting online queue run.\n");
113 msg_list = read_queue(FALSE);
114 if (msg_list) {
115 ok = deliver_msg_list(msg_list, DLVR_ONLINE);
116 DEBUG(5) debugf(" deliver_msg_list() returned: %d\n", ok);
117 destroy_msg_list(msg_list);
118 }
119 logwrite(LOG_NOTICE, "Finished online queue run.\n");
120
121 return ok;
122 }
123
124 static gchar*
125 format_difftime(double secs)
126 {
127 if (secs > 86400)
128 return g_strdup_printf("%.1fd", secs / 86400);
129 else if (secs > 3600)
130 return g_strdup_printf("%.1fh", secs / 3600);
131 else if (secs > 60)
132 return g_strdup_printf("%.1fm", secs / 60);
133 else
134 return g_strdup_printf("%.0fs", secs);
135 }
136
137 void
138 queue_list()
139 {
140 GList *msg_list;
141 GList *msg_node;
142
143 msg_list = read_queue(FALSE);
144
145 if (msg_list == NULL) {
146 printf("mail queue is empty.\n");
147 return;
148 }
149
150 foreach(msg_list, msg_node) {
151 message *msg = (message *) (msg_node->data);
152 GList *rcpt_node;
153 gchar *size_str = NULL;
154 gchar *time_str = NULL;
155 gchar *host_str = NULL;
156 gchar *ident_str = NULL;
157
158 if (msg->data_size >= 0)
159 size_str = g_strdup_printf(" size=%d", msg->data_size);
160 if (msg->received_time > 0) {
161 gchar *tmp_str;
162 time_str = g_strdup_printf(" age=%s", tmp_str = format_difftime(difftime(time(NULL), msg->received_time)));
163 g_free(tmp_str);
164 }
165 if (msg->received_host != NULL)
166 host_str = g_strdup_printf(" host=%s", msg->received_host);
167 if (msg->ident != NULL)
168 ident_str = g_strdup_printf(" ident=%s", msg->ident);
169
170 printf("%s <= %s%s%s%s%s\n", msg->uid, addr_string(msg->return_path), size_str ? size_str : "",
171 time_str ? time_str : "", host_str ? host_str : "", ident_str ? ident_str : "");
172
173 if (size_str)
174 g_free(size_str);
175 if (time_str)
176 g_free(time_str);
177 if (host_str)
178 g_free(host_str);
179 if (ident_str)
180 g_free(ident_str);
181
182 foreach(msg->rcpt_list, rcpt_node) {
183 address *rcpt = (address *) (rcpt_node->data);
184
185 printf(" %s %s\n", addr_is_delivered(rcpt) ? "=>" : (addr_is_failed(rcpt) ? "!=" : "=="), addr_string(rcpt));
186 }
187 g_free(msg);
188 }
189 }
190
191 gboolean
192 queue_delete(gchar * uid)
193 {
194 gboolean hdr_ok = TRUE;
195 gboolean dat_ok = TRUE;
196 gchar *hdr_name = g_strdup_printf("%s/input/%s-H", conf.spool_dir, uid);
197 gchar *dat_name = g_strdup_printf("%s/input/%s-D", conf.spool_dir, uid);
198 struct stat stat_buf;
199
200 if (!spool_lock(uid)) {
201 fprintf(stderr, "message %s is locked.\n", uid);
202 return FALSE;
203 }
204
205 if (stat(hdr_name, &stat_buf) == 0) {
206 if (unlink(hdr_name) != 0) {
207 fprintf(stderr, "could not unlink %s: %s\n", hdr_name, strerror(errno));
208 hdr_ok = FALSE;
209 }
210 } else {
211 fprintf(stderr, "could not stat file %s: %s\n", hdr_name, strerror(errno));
212 hdr_ok = FALSE;
213 }
214 if (stat(dat_name, &stat_buf) == 0) {
215 if (unlink(dat_name) != 0) {
216 fprintf(stderr, "could not unlink %s: %s\n", dat_name, strerror(errno));
217 dat_ok = FALSE;
218 }
219 } else {
220 fprintf(stderr, "could not stat file %s: %s\n", dat_name, strerror(errno));
221 dat_ok = FALSE;
222 }
223 printf("message %s deleted\n", uid);
224
225 spool_unlock(uid);
226
227 return (dat_ok && hdr_ok);
228 }