annotate src/plugins/acl/acl-backend-vfile-acllist.c @ 9207:bf4f542ec6df HEAD

acl+mbox: Create also temp acllist file to control directory.
author Timo Sirainen <tss@iki.fi>
date Tue, 07 Jul 2009 22:37:42 -0400
parents 4c8175452173
children 00cd9aacd03c
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1 /* Copyright (c) 2007-2009 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "array.h"
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5 #include "str.h"
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6 #include "safe-mkstemp.h"
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7 #include "istream.h"
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8 #include "ostream.h"
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9 #include "mail-namespace.h"
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10 #include "mail-storage.h"
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11 #include "acl-plugin.h"
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12 #include "acl-cache.h"
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13 #include "acl-lookup-dict.h"
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14 #include "acl-backend-vfile.h"
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15
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16 #include <stdio.h>
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17 #include <unistd.h>
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18 #include <fcntl.h>
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19 #include <sys/stat.h>
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20
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21 struct acl_mailbox_list_context_vfile {
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22 struct acl_mailbox_list_context ctx;
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23
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24 unsigned int idx;
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25 };
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26
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27 static void
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28 acllist_clear(struct acl_backend_vfile *backend, uoff_t file_size)
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29 {
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30 if (backend->acllist_pool == NULL) {
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31 backend->acllist_pool =
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32 pool_alloconly_create("vfile acllist",
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33 I_MAX(file_size / 2, 128));
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34 i_array_init(&backend->acllist, I_MAX(16, file_size / 60));
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35 } else {
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36 p_clear(backend->acllist_pool);
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37 array_clear(&backend->acllist);
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38 }
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39 }
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40
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41 static const char *acl_list_get_root_dir(struct acl_backend_vfile *backend)
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42 {
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43 struct mail_storage *storage;
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44 const char *rootdir, *maildir;
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45 bool is_file;
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46
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47 rootdir = mailbox_list_get_path(backend->backend.list, NULL,
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48 MAILBOX_LIST_PATH_TYPE_DIR);
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49
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50 storage = mailbox_list_get_namespace(backend->backend.list)->storage;
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51 (void)mail_storage_get_mailbox_path(storage, "", &is_file);
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52 if (is_file) {
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53 maildir = mailbox_list_get_path(backend->backend.list, NULL,
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54 MAILBOX_LIST_PATH_TYPE_MAILBOX);
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55 if (strcmp(maildir, rootdir) == 0) {
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56 /* dovecot-acl-list would show up as a mailbox if we
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57 created it to root dir. since we don't really have
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58 any other good alternatives, place it to control
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59 dir */
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60 rootdir = mailbox_list_get_path(backend->backend.list,
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61 NULL, MAILBOX_LIST_PATH_TYPE_CONTROL);
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62 }
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63 }
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64 return rootdir;
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65 }
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66
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67 static const char *acl_list_get_path(struct acl_backend_vfile *backend)
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68 {
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69 return t_strconcat(acl_list_get_root_dir(backend),
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70 "/"ACLLIST_FILENAME, NULL);
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71 }
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72
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73 static int acl_backend_vfile_acllist_read(struct acl_backend_vfile *backend)
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74 {
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75 struct acl_backend_vfile_acllist acllist;
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76 struct istream *input;
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77 struct stat st;
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78 const char *path, *line, *p;
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79 int fd, ret = 0;
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80
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81 backend->acllist_last_check = ioloop_time;
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82
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83 path = acl_list_get_path(backend);
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84 if (path == NULL) {
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85 /* we're never going to build acllist for this namespace. */
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86 i_array_init(&backend->acllist, 1);
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87 return 0;
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88 }
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89
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90 if (backend->acllist_mtime != 0) {
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91 /* see if the file's mtime has changed */
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92 if (stat(path, &st) < 0) {
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93 if (errno == ENOENT)
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94 backend->acllist_mtime = 0;
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95 else
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96 i_error("stat(%s) failed: %m", path);
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97 return -1;
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98 }
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99 if (st.st_mtime == backend->acllist_mtime)
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100 return 0;
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101 }
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102
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103 fd = open(path, O_RDONLY);
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104 if (fd == -1) {
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105 if (errno == ENOENT) {
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106 backend->acllist_mtime = 0;
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107 return -1;
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108 }
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109 i_error("open(%s) failed: %m", path);
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110 return -1;
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111 }
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112 if (fstat(fd, &st) < 0) {
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113 i_error("fstat(%s) failed: %m", path);
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114 (void)close(fd);
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115 return -1;
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116 }
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117 backend->acllist_mtime = st.st_mtime;
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118 acllist_clear(backend, st.st_size);
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119
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120 input = i_stream_create_fd(fd, (size_t)-1, FALSE);
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121 while ((line = i_stream_read_next_line(input)) != NULL) {
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122 acllist.mtime = 0;
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123 for (p = line; *p >= '0' && *p <= '9'; p++)
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124 acllist.mtime = acllist.mtime * 10 + (*p - '0');
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125
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126 if (p == line || *p != ' ' || p[1] == '\0') {
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diff changeset
127 i_error("Broken acllist file: %s", path);
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128 if (unlink(path) < 0 && errno != ENOENT)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
129 i_error("unlink(%s) failed: %m", path);
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diff changeset
130 return -1;
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parents:
diff changeset
131 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
132 acllist.name = p_strdup(backend->acllist_pool, p + 1);
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parents:
diff changeset
133 array_append(&backend->acllist, &acllist, 1);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
134 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
135 if (input->stream_errno != 0)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
136 ret = -1;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
137 i_stream_destroy(&input);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
138
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
139 if (close(fd) < 0)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
140 i_error("close(%s) failed: %m", path);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
141 return ret;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
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142 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
143
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
144 void acl_backend_vfile_acllist_refresh(struct acl_backend_vfile *backend)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
145 {
8896
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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diff changeset
146 i_assert(!backend->iterating_acllist);
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diff changeset
147
5983
272796cfee66 compiler warning fixes
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diff changeset
148 if (backend->acllist_last_check +
272796cfee66 compiler warning fixes
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diff changeset
149 (time_t)backend->cache_secs > ioloop_time)
5552
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diff changeset
150 return;
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diff changeset
151
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
152 if (acl_backend_vfile_acllist_read(backend) < 0) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
153 acllist_clear(backend, 0);
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154 if (!backend->rebuilding_acllist)
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155 (void)acl_backend_vfile_acllist_rebuild(backend);
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156 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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157 }
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diff changeset
158
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diff changeset
159 static int
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diff changeset
160 acllist_append(struct acl_backend_vfile *backend, struct ostream *output,
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diff changeset
161 struct mail_storage *storage, const char *name)
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162 {
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163 struct acl_object *aclobj;
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diff changeset
164 struct acl_object_list_iter *iter;
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165 struct acl_rights rights;
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parents:
diff changeset
166 struct acl_backend_vfile_acllist acllist;
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diff changeset
167 int ret;
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diff changeset
168
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diff changeset
169 acl_cache_flush(backend->backend.cache, name);
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170 aclobj = acl_object_init_from_name(&backend->backend, storage, name);
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171
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diff changeset
172 iter = acl_object_list_init(aclobj);
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diff changeset
173 while ((ret = acl_object_list_next(iter, &rights)) > 0) {
8430
23aee2534249 acl: When lookup ACLs are changed, make sure dovecot-acl-list is updated.
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parents: 8212
diff changeset
174 if (acl_rights_has_nonowner_lookup_changes(&rights))
5552
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diff changeset
175 break;
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diff changeset
176 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
177 acl_object_list_deinit(&iter);
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diff changeset
178
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diff changeset
179 if (acl_backend_vfile_object_get_mtime(aclobj, &acllist.mtime) < 0)
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180 ret = -1;
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diff changeset
181
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
182 if (ret > 0) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
183 acllist.name = p_strdup(backend->acllist_pool, name);
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diff changeset
184 array_append(&backend->acllist, &acllist, 1);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
185
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
186 T_BEGIN {
6940
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6774
diff changeset
187 const char *line;
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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diff changeset
188 line = t_strdup_printf("%s %s\n",
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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parents: 6774
diff changeset
189 dec2str(acllist.mtime), name);
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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parents: 6774
diff changeset
190 o_stream_send_str(output, line);
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
191 } T_END;
5552
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192 }
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diff changeset
193 acl_object_deinit(&aclobj);
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parents:
diff changeset
194 return ret < 0 ? -1 : 0;
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parents:
diff changeset
195 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
196
9154
8206c38856ff acl: If dovecot-acl-list writing fails, delete it so it gets rebuilt later.
Timo Sirainen <tss@iki.fi>
parents: 8901
diff changeset
197 static int
8206c38856ff acl: If dovecot-acl-list writing fails, delete it so it gets rebuilt later.
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parents: 8901
diff changeset
198 acl_backend_vfile_acllist_try_rebuild(struct acl_backend_vfile *backend)
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
199 {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
200 struct mailbox_list *list = backend->backend.list;
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parents:
diff changeset
201 struct mail_namespace *ns;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
202 struct mailbox_list_iterate_context *iter;
5807
ec09ad1d017f mailbox_list_iter_next() returns now const pointer.
Timo Sirainen <tss@iki.fi>
parents: 5552
diff changeset
203 const struct mailbox_info *info;
9207
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
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parents: 9205
diff changeset
204 const char *rootdir, *origin, *acllist_path;
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
205 struct ostream *output;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
206 struct stat st;
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parents:
diff changeset
207 string_t *path;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
208 mode_t mode;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
209 gid_t gid;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
210 int fd, ret;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
211
8896
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
Timo Sirainen <tss@iki.fi>
parents: 8767
diff changeset
212 i_assert(!backend->rebuilding_acllist);
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
Timo Sirainen <tss@iki.fi>
parents: 8767
diff changeset
213
9207
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Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
214 rootdir = acl_list_get_root_dir(backend);
8212
909ed7cd98a5 ACL: Handle shared namespaces.
Timo Sirainen <tss@iki.fi>
parents: 7428
diff changeset
215 if (rootdir == NULL)
909ed7cd98a5 ACL: Handle shared namespaces.
Timo Sirainen <tss@iki.fi>
parents: 7428
diff changeset
216 return 0;
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
217
8901
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
218 ns = mailbox_list_get_namespace(list);
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
219 if ((ns->flags & NAMESPACE_FLAG_UNUSABLE) != 0) {
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
220 /* we can't write anything here */
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
221 return 0;
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
222 }
703214a10642 acl: Don't try to create dovecot-acl-list file for unknown users' auto-created namespaces.
Timo Sirainen <tss@iki.fi>
parents: 8896
diff changeset
223
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
224 path = t_str_new(256);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
225 str_printfa(path, "%s/%s", rootdir, mailbox_list_get_temp_prefix(list));
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
226
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
227 /* Build it into a temporary file and rename() over. There's no need
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
228 to use locking, because even if multiple processes are rebuilding
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
229 the file at the same time the result should be the same. */
9168
2bbf175bb6d3 Whenever file's group changing fails, show the group origin in the error message.
Timo Sirainen <tss@iki.fi>
parents: 9154
diff changeset
230 mailbox_list_get_permissions(list, NULL, &mode, &gid, &origin);
2bbf175bb6d3 Whenever file's group changing fails, show the group origin in the error message.
Timo Sirainen <tss@iki.fi>
parents: 9154
diff changeset
231 fd = safe_mkstemp_group(path, mode, gid, origin);
9207
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
232 if (fd == -1 && errno == ENOENT) {
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
233 if (mailbox_list_create_parent_dir(backend->backend.list, NULL,
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
234 str_c(path)) < 0)
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
235 return -1;
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
236 fd = safe_mkstemp_group(path, mode, gid, origin);
bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
Timo Sirainen <tss@iki.fi>
parents: 9205
diff changeset
237 }
6774
532b29891022 Log error if safe_mkstemp() fails
Timo Sirainen <tss@iki.fi>
parents: 6773
diff changeset
238 if (fd == -1) {
7428
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
239 if (errno == EACCES) {
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
240 /* Ignore silently if we can't create it */
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
241 return 0;
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
242 }
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
243 i_error("dovecot-acl-list creation failed: "
d6f1eb00e4d3 If dovecot-acl-list can't be created because of permission problems, it's
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
244 "safe_mkstemp(%s) failed: %m", str_c(path));
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
245 return -1;
6774
532b29891022 Log error if safe_mkstemp() fails
Timo Sirainen <tss@iki.fi>
parents: 6773
diff changeset
246 }
6161
c62f7ee79446 Split o_stream_create_file() to _create_fd() and _create_fd_file().
Timo Sirainen <tss@iki.fi>
parents: 6142
diff changeset
247 output = o_stream_create_fd_file(fd, 0, FALSE);
5552
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
248
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
249 ret = 0;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
250 acllist_clear(backend, 0);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
251
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
252 backend->rebuilding_acllist = TRUE;
5829
1d73153584d2 Mailbox listing API changed to support more features. Used to implement
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parents: 5807
diff changeset
253 iter = mailbox_list_iter_init(list, "*", MAILBOX_LIST_ITER_RAW_LIST |
1d73153584d2 Mailbox listing API changed to support more features. Used to implement
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parents: 5807
diff changeset
254 MAILBOX_LIST_ITER_RETURN_NO_FLAGS);
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parents:
diff changeset
255 while ((info = mailbox_list_iter_next(iter)) != NULL) {
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parents:
diff changeset
256 if (acllist_append(backend, output, ns->storage,
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
257 info->name) < 0) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
258 ret = -1;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
259 break;
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260 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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261 }
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262
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8206c38856ff acl: If dovecot-acl-list writing fails, delete it so it gets rebuilt later.
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parents: 8901
diff changeset
263 if (output->stream_errno != 0) {
8206c38856ff acl: If dovecot-acl-list writing fails, delete it so it gets rebuilt later.
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parents: 8901
diff changeset
264 i_error("write(%s) failed: %m", str_c(path));
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265 ret = -1;
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266 }
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diff changeset
267 if (mailbox_list_iter_deinit(&iter) < 0)
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268 ret = -1;
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269 o_stream_destroy(&output);
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270
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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271 if (ret == 0) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
272 if (fstat(fd, &st) < 0) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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diff changeset
273 i_error("fstat(%s) failed: %m", str_c(path));
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274 ret = -1;
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275 }
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276 }
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277 if (close(fd) < 0) {
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278 i_error("close(%s) failed: %m", str_c(path));
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279 ret = -1;
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280 }
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281
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bf4f542ec6df acl+mbox: Create also temp acllist file to control directory.
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282 if (ret == 0) {
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283 acllist_path = acl_list_get_path(backend);
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284 if (rename(str_c(path), acllist_path) < 0) {
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285 i_error("rename(%s, %s) failed: %m",
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286 str_c(path), acllist_path);
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287 ret = -1;
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288 }
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289 }
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290 if (ret == 0) {
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dfe39e9a9e78 Initial support for LISTing users with shared mailboxes.
Timo Sirainen <tss@iki.fi>
parents: 8430
diff changeset
291 struct acl_user *auser = ACL_USER_CONTEXT(ns->user);
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292
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293 backend->acllist_mtime = st.st_mtime;
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294 backend->acllist_last_check = ioloop_time;
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dfe39e9a9e78 Initial support for LISTing users with shared mailboxes.
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295 /* FIXME: dict reubild is expensive, try to avoid it */
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parents: 8430
diff changeset
296 (void)acl_lookup_dict_rebuild(auser->acl_lookup_dict);
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297 } else {
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298 acllist_clear(backend, 0);
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299 if (unlink(str_c(path)) < 0 && errno != ENOENT)
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300 i_error("unlink(%s) failed: %m", str_c(path));
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301 }
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db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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302 backend->rebuilding_acllist = FALSE;
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303 return ret;
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304 }
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305
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306 int acl_backend_vfile_acllist_rebuild(struct acl_backend_vfile *backend)
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307 {
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parents: 9168
diff changeset
308 const char *acllist_path;
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parents: 8901
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309
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310 if (acl_backend_vfile_acllist_try_rebuild(backend) == 0)
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parents: 8901
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311 return 0;
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parents: 8901
diff changeset
312 else {
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parents: 8901
diff changeset
313 /* delete it to make sure it gets rebuilt later */
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diff changeset
314 acllist_path = acl_list_get_path(backend);
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parents: 8901
diff changeset
315 if (unlink(acllist_path) < 0 && errno != ENOENT)
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parents: 8901
diff changeset
316 i_error("unlink(%s) failed: %m", acllist_path);
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parents: 8901
diff changeset
317 return -1;
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parents: 8901
diff changeset
318 }
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parents: 8901
diff changeset
319 }
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parents: 8901
diff changeset
320
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parents:
diff changeset
321 static const struct acl_backend_vfile_acllist *
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parents:
diff changeset
322 acl_backend_vfile_acllist_find(struct acl_backend_vfile *backend,
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
323 const char *name)
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diff changeset
324 {
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diff changeset
325 const struct acl_backend_vfile_acllist *acllist;
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diff changeset
326 unsigned int i, count;
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parents:
diff changeset
327
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diff changeset
328 acllist = array_get(&backend->acllist, &count);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
329 for (i = 0; i < count; i++) {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
330 if (strcmp(acllist[i].name, name) == 0)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
331 return &acllist[i];
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parents:
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332 }
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parents:
diff changeset
333 return NULL;
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parents:
diff changeset
334 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
335
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
336 void acl_backend_vfile_acllist_verify(struct acl_backend_vfile *backend,
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
337 const char *name, time_t mtime)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
338 {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
339 const struct acl_backend_vfile_acllist *acllist;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
340
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db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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parents: 8767
diff changeset
341 if (backend->rebuilding_acllist || backend->iterating_acllist)
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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parents: 8767
diff changeset
342 return;
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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parents: 8767
diff changeset
343
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parents:
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344 acl_backend_vfile_acllist_refresh(backend);
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parents:
diff changeset
345 acllist = acl_backend_vfile_acllist_find(backend, name);
8896
db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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parents: 8767
diff changeset
346 if (acllist != NULL && acllist->mtime != mtime)
5552
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parents:
diff changeset
347 (void)acl_backend_vfile_acllist_rebuild(backend);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
348 }
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349
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
350 struct acl_mailbox_list_context *
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
351 acl_backend_vfile_nonowner_iter_init(struct acl_backend *_backend)
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parents:
diff changeset
352 {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
353 struct acl_backend_vfile *backend =
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parents:
diff changeset
354 (struct acl_backend_vfile *)_backend;
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parents:
diff changeset
355 struct acl_mailbox_list_context_vfile *ctx;
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parents:
diff changeset
356
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
357 acl_backend_vfile_acllist_refresh(backend);
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parents:
diff changeset
358
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
359 ctx = i_new(struct acl_mailbox_list_context_vfile, 1);
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parents:
diff changeset
360 ctx->ctx.backend = _backend;
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db0072f7c6b4 acl: Fixed crash when rebuilding dovecot-acl-list file.
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parents: 8767
diff changeset
361 backend->iterating_acllist = TRUE;
5552
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362 return &ctx->ctx;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
363 }
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
364
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
365 int acl_backend_vfile_nonowner_iter_next(struct acl_mailbox_list_context *_ctx,
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
366 const char **name_r)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
367 {
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
368 struct acl_mailbox_list_context_vfile *ctx =
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
369 (struct acl_mailbox_list_context_vfile *)_ctx;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
370 struct acl_backend_vfile *backend =
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
371 (struct acl_backend_vfile *)_ctx->backend;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
372 const struct acl_backend_vfile_acllist *acllist;
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
373 unsigned int count;
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parents:
diff changeset
374
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
375 acllist = array_get(&backend->acllist, &count);
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
376 if (ctx->idx == count)
71b5fd371b9a Create dovecot-acl-list file that lists all mailboxes where non-owner has
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parents:
diff changeset
377 return 0;
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378
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379 *name_r = acllist[ctx->idx++].name;
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380 return 1;
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381 }
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382
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383 void
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384 acl_backend_vfile_nonowner_iter_deinit(struct acl_mailbox_list_context *ctx)
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385 {
8896
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386 struct acl_backend_vfile *backend =
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387 (struct acl_backend_vfile *)ctx->backend;
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388
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389 backend->iterating_acllist = FALSE;
5552
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390 i_free(ctx);
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391 }