Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib-storage/index/shared/shared-storage.c @ 8461:659667d89f69 HEAD
Added list=children option for namespaces.
author | Timo Sirainen <tss@iki.fi> |
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date | Fri, 21 Nov 2008 17:03:27 +0200 |
parents | f5554ae61732 |
children | 027a61241ebb |
rev | line source |
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1 /* Copyright (c) 2008 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 "ioloop.h" |
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7 #include "auth-master.h" |
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8 #include "var-expand.h" |
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9 #include "index-storage.h" |
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10 #include "shared-storage.h" |
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11 |
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12 #include <stdlib.h> |
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13 #include <ctype.h> |
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14 |
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15 #define SHARED_LIST_CONTEXT(obj) \ |
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16 MODULE_CONTEXT(obj, shared_mailbox_list_module) |
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17 |
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18 extern struct mail_storage shared_storage; |
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19 extern struct mailbox shared_mailbox; |
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20 |
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21 static MODULE_CONTEXT_DEFINE_INIT(shared_mailbox_list_module, |
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22 &mailbox_list_module_register); |
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23 |
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24 static struct mail_storage *shared_alloc(void) |
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25 { |
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26 struct shared_storage *storage; |
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27 pool_t pool; |
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28 |
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29 pool = pool_alloconly_create("shared storage", 256); |
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30 storage = p_new(pool, struct shared_storage, 1); |
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31 storage->storage = shared_storage; |
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32 storage->storage.pool = pool; |
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33 storage->storage.storage_class = &shared_storage; |
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34 |
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35 storage->base_dir = p_strdup(pool, getenv("BASE_DIR")); |
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36 if (storage->base_dir == NULL) |
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37 storage->base_dir = PKG_RUNDIR; |
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38 |
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39 return &storage->storage; |
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40 } |
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41 |
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42 static int shared_create(struct mail_storage *_storage, const char *data, |
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43 const char **error_r) |
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44 { |
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45 struct shared_storage *storage = (struct shared_storage *)_storage; |
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46 struct mailbox_list_settings list_set; |
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47 const char *driver, *p; |
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48 char *wildcardp; |
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49 bool have_username; |
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50 |
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51 /* data must begin with the actual mailbox driver */ |
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52 p = strchr(data, ':'); |
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53 if (p == NULL) { |
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54 *error_r = "Shared mailbox location not prefixed with driver"; |
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55 return -1; |
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56 } |
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57 driver = t_strdup_until(data, p); |
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58 storage->location = p_strdup(_storage->pool, data); |
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59 storage->storage_class = mail_storage_find_class(driver); |
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60 if (storage->storage_class == NULL) { |
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61 *error_r = t_strconcat("Unknown shared storage driver: ", |
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62 driver, NULL); |
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63 return -1; |
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64 } |
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65 _storage->mailbox_is_file = storage->storage_class->mailbox_is_file; |
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66 |
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67 wildcardp = strchr(_storage->ns->prefix, '%'); |
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68 if (wildcardp == NULL) { |
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69 *error_r = "Shared namespace prefix doesn't contain %"; |
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70 return -1; |
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71 } |
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72 storage->ns_prefix_pattern = p_strdup(_storage->pool, wildcardp); |
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73 *wildcardp = '\0'; |
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74 |
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75 have_username = FALSE; |
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76 for (p = storage->ns_prefix_pattern; *p != '\0'; p++) { |
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77 if (*p != '%') |
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78 continue; |
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79 if (*++p == '\0') |
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80 break; |
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81 if (*p == 'u' || *p == 'n') |
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82 have_username = TRUE; |
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83 else if (*p != 'd') |
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84 break; |
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85 } |
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86 if (*p != '\0') { |
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87 *error_r = "Shared namespace prefix contains unknown variables"; |
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88 return -1; |
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89 } |
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90 if (!have_username) { |
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91 *error_r = "Shared namespace prefix doesn't contain %u or %n"; |
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92 return -1; |
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93 } |
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94 |
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95 if (mailbox_list_alloc("shared", &_storage->list, error_r) < 0) |
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96 return -1; |
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97 MODULE_CONTEXT_SET_FULL(_storage->list, shared_mailbox_list_module, |
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98 storage, &storage->list_module_ctx); |
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99 |
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100 memset(&list_set, 0, sizeof(list_set)); |
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101 list_set.mail_storage_flags = &_storage->flags; |
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102 list_set.lock_method = &_storage->lock_method; |
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103 mailbox_list_init(_storage->list, _storage->ns, &list_set, |
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104 mail_storage_get_list_flags(_storage->flags)); |
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105 return 0; |
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106 } |
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107 |
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108 static void shared_storage_destroy(struct mail_storage *_storage) |
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109 { |
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110 struct shared_storage *storage = (struct shared_storage *)_storage; |
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111 |
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112 if (storage->auth_master_conn != NULL) |
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113 auth_master_deinit(&storage->auth_master_conn); |
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114 index_storage_destroy(_storage); |
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115 } |
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116 |
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117 static void shared_storage_auth_master_init(struct shared_storage *storage) |
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118 { |
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119 const char *auth_socket_path; |
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120 bool debug; |
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121 |
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122 auth_socket_path = getenv("AUTH_SOCKET_PATH"); |
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123 if (auth_socket_path == NULL) { |
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124 auth_socket_path = t_strconcat(storage->base_dir, |
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125 "/auth-master", NULL); |
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126 } |
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127 |
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128 debug = (storage->storage.flags & MAIL_STORAGE_FLAG_DEBUG) != 0; |
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129 storage->auth_master_conn = auth_master_init(auth_socket_path, debug); |
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130 } |
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131 |
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132 static int |
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133 shared_storage_lookup_home(struct shared_storage *storage, |
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134 const char *user, const char **home_r) |
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135 { |
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136 struct auth_user_reply reply; |
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137 pool_t userdb_pool; |
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138 int ret; |
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139 |
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140 if (storage->auth_master_conn == NULL) |
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141 shared_storage_auth_master_init(storage); |
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142 |
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143 userdb_pool = pool_alloconly_create("userdb lookup", 512); |
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144 ret = auth_master_user_lookup(storage->auth_master_conn, user, |
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145 AUTH_SERVICE_INTERNAL, |
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146 userdb_pool, &reply); |
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147 if (ret > 0) |
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148 *home_r = t_strdup(reply.home); |
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149 pool_unref(&userdb_pool); |
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150 return ret; |
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151 } |
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152 |
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153 static void get_nonexisting_user_location(struct shared_storage *storage, |
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154 string_t *location) |
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155 { |
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156 /* user wasn't found. we'll still need to create the storage |
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157 to avoid exposing which users exist and which don't. */ |
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158 str_append(location, storage->storage_class->name); |
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159 str_append_c(location, ':'); |
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160 |
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161 /* use a reachable but non-existing path as the mail root directory */ |
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162 str_append(location, storage->base_dir); |
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163 str_append(location, PKG_RUNDIR"/user-not-found"); |
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164 } |
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165 |
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166 int shared_storage_get_namespace(struct mail_storage *_storage, |
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167 const char **_name, |
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168 struct mail_namespace **ns_r) |
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169 { |
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170 struct shared_storage *storage = (struct shared_storage *)_storage; |
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171 struct mail_user *user = _storage->ns->user; |
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172 static struct var_expand_table static_tab[] = { |
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173 { 'u', NULL }, |
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174 { 'n', NULL }, |
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175 { 'd', NULL }, |
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176 { 'h', NULL }, |
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177 { '\0', NULL } |
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178 }; |
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179 struct var_expand_table *tab; |
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180 struct mail_namespace *ns; |
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181 const char *domain = NULL, *username = NULL, *userdomain = NULL; |
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182 const char *name, *p, *next, **dest, *error; |
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183 string_t *prefix, *location; |
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184 int ret; |
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185 |
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186 *ns_r = NULL; |
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187 |
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188 p = storage->ns_prefix_pattern; |
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189 for (name = *_name; *p != '\0';) { |
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190 if (*p != '%') { |
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191 if (*p != *name) |
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192 return -1; |
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193 p++; name++; |
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194 continue; |
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195 } |
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196 switch (*++p) { |
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197 case 'd': |
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198 dest = &domain; |
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199 break; |
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200 case 'n': |
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201 dest = &username; |
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202 break; |
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203 case 'u': |
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204 dest = &userdomain; |
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205 break; |
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206 default: |
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207 /* we checked this already above */ |
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208 i_unreached(); |
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209 } |
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210 p++; |
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211 |
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212 next = strchr(name, *p != '\0' ? *p : _storage->ns->sep); |
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213 if (next == NULL) |
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214 return -1; |
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215 |
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216 *dest = t_strdup_until(name, next); |
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217 name = next; |
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218 } |
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219 /* successfully matched the name. */ |
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220 if (userdomain == NULL) { |
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221 i_assert(username != NULL); |
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222 userdomain = domain == NULL ? username : |
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223 t_strconcat(username, "@", domain, NULL); |
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224 } else { |
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225 domain = strchr(userdomain, '@'); |
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226 if (domain == NULL) |
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227 username = userdomain; |
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228 else { |
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229 username = t_strdup_until(userdomain, domain); |
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230 domain++; |
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231 } |
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232 } |
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233 |
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234 /* expand the namespace prefix and see if it already exists. |
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235 this should normally happen only when the mailbox is being opened */ |
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236 tab = t_malloc(sizeof(static_tab)); |
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237 memcpy(tab, static_tab, sizeof(static_tab)); |
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238 tab[0].value = userdomain; |
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239 tab[1].value = username; |
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240 tab[2].value = domain; |
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241 |
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242 prefix = t_str_new(128); |
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243 str_append(prefix, _storage->ns->prefix); |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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244 var_expand(prefix, storage->ns_prefix_pattern, tab); |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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245 |
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246 ns = mail_namespace_find_prefix(user->namespaces, str_c(prefix)); |
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247 if (ns != NULL) { |
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248 *_name = mail_namespace_fix_sep(ns, name); |
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249 *ns_r = ns; |
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250 return 0; |
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251 } |
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252 |
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253 if (!var_has_key(storage->location, 'h')) |
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254 ret = 1; |
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255 else { |
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256 /* we'll need to look up the user's home directory */ |
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257 ret = shared_storage_lookup_home(storage, userdomain, |
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258 &tab[3].value); |
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259 if (ret < 0) { |
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260 mail_storage_set_critical(_storage, "Namespace '%s': " |
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261 "Could not lookup home for user %s", |
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262 _storage->ns->prefix, userdomain); |
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263 return -1; |
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264 } |
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265 } |
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266 |
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267 /* create the new namespace */ |
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268 ns = i_new(struct mail_namespace, 1); |
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269 ns->type = NAMESPACE_SHARED; |
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270 ns->user = user; |
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271 ns->prefix = i_strdup(str_c(prefix)); |
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272 ns->flags = NAMESPACE_FLAG_LIST_PREFIX | NAMESPACE_FLAG_HIDDEN | |
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Subscription handling fixes for subscriptions=no namespaces and shared mailboxes.
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273 NAMESPACE_FLAG_AUTOCREATED; |
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274 ns->sep = _storage->ns->sep; |
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275 |
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276 location = t_str_new(256); |
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277 if (ret > 0) |
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278 var_expand(location, storage->location, tab); |
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279 else |
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280 get_nonexisting_user_location(storage, location); |
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281 if (mail_storage_create(ns, NULL, str_c(location), _storage->flags, |
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282 _storage->lock_method, &error) < 0) { |
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Use mail_storage_set_critical() instead of i_error() directly.
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283 mail_storage_set_critical(_storage, "Namespace '%s': %s", |
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Use mail_storage_set_critical() instead of i_error() directly.
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284 ns->prefix, error); |
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285 return -1; |
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286 } |
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287 mail_user_add_namespace(user, ns); |
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288 _storage->ns->flags |= NAMESPACE_FLAG_USABLE; |
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289 |
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290 *_name = mail_namespace_fix_sep(ns, name); |
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291 *ns_r = ns; |
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292 return 0; |
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293 } |
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294 |
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295 static void shared_mailbox_copy_error(struct mail_storage *shared_storage, |
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296 struct mail_namespace *backend_ns) |
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297 { |
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298 const char *str; |
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299 enum mail_error error; |
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parents:
diff
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|
300 |
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parents:
diff
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|
301 str = mail_storage_get_last_error(backend_ns->storage, &error); |
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parents:
diff
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|
302 mail_storage_set_error(shared_storage, error, str); |
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diff
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|
303 } |
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|
304 |
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parents:
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|
305 static struct mailbox * |
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parents:
diff
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|
306 shared_mailbox_open(struct mail_storage *storage, const char *name, |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
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|
307 struct istream *input, enum mailbox_open_flags flags) |
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parents:
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|
308 { |
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parents:
diff
changeset
|
309 struct mail_namespace *ns; |
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parents:
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|
310 struct mailbox *box; |
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parents:
diff
changeset
|
311 |
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Added initial support for shared mailboxes. Listing isn't supported yet.
Timo Sirainen <tss@iki.fi>
parents:
diff
changeset
|
312 if (input != NULL) { |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
diff
changeset
|
313 mail_storage_set_critical(storage, |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
diff
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|
314 "Shared storage doesn't support streamed mailboxes"); |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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|
315 return NULL; |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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|
316 } |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
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changeset
|
317 |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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|
318 if (shared_storage_get_namespace(storage, &name, &ns) < 0) |
6dd0c6755afe
Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
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|
319 return NULL; |
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parents:
diff
changeset
|
320 |
8319
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Fixed shared mailboxes to work with plugins.
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diff
changeset
|
321 /* if we call the normal mailbox_open() here the plugins will see |
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diff
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|
322 mailbox_open() called twice and they could break. */ |
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323 box = ns->storage->storage_class->v. |
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324 mailbox_open(ns->storage, name, NULL, flags); |
8173
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Added initial support for shared mailboxes. Listing isn't supported yet.
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|
325 if (box == NULL) |
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parents:
diff
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|
326 shared_mailbox_copy_error(storage, ns); |
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4cf249042df6
When autocreating a new shared namespace, drop existing namespaces where we haven't seen any mailboxes.
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diff
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|
327 else |
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328 ns->flags |= NAMESPACE_FLAG_USABLE; |
8173
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329 return box; |
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|
330 } |
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parents:
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|
331 |
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Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
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|
332 static int shared_mailbox_create(struct mail_storage *storage, |
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|
333 const char *name, bool directory) |
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parents:
diff
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334 { |
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parents:
diff
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|
335 struct mail_namespace *ns; |
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parents:
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336 int ret; |
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parents:
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|
337 |
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parents:
diff
changeset
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338 if (shared_storage_get_namespace(storage, &name, &ns) < 0) |
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339 return -1; |
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|
340 |
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341 ret = mail_storage_mailbox_create(ns->storage, name, directory); |
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diff
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|
342 if (ret < 0) |
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parents:
diff
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|
343 shared_mailbox_copy_error(storage, ns); |
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parents:
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|
344 return ret; |
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parents:
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|
345 } |
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parents:
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|
346 |
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Timo Sirainen <tss@iki.fi>
parents:
diff
changeset
|
347 struct mail_storage shared_storage = { |
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parents:
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|
348 MEMBER(name) SHARED_STORAGE_NAME, |
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diff
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|
349 MEMBER(mailbox_is_file) FALSE, /* unknown at this point */ |
6dd0c6755afe
Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
diff
changeset
|
350 |
6dd0c6755afe
Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
diff
changeset
|
351 { |
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parents:
diff
changeset
|
352 NULL, |
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parents:
diff
changeset
|
353 NULL, |
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Added initial support for shared mailboxes. Listing isn't supported yet.
Timo Sirainen <tss@iki.fi>
parents:
diff
changeset
|
354 shared_alloc, |
6dd0c6755afe
Added initial support for shared mailboxes. Listing isn't supported yet.
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parents:
diff
changeset
|
355 shared_create, |
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|
356 shared_storage_destroy, |
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parents:
diff
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|
357 NULL, |
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parents:
diff
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|
358 shared_mailbox_open, |
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parents:
diff
changeset
|
359 shared_mailbox_create |
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parents:
diff
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|
360 } |
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parents:
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|
361 }; |