Mercurial > dovecot > original-hg > dovecot-1.2
annotate src/lib-storage/mailbox-list.c @ 5839:978722ad6184 HEAD
s/mask/pattern/ for mailbox listing.
author | Timo Sirainen <tss@iki.fi> |
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date | Fri, 29 Jun 2007 19:41:22 +0300 |
parents | ec09ad1d017f |
children | 272796cfee66 |
rev | line source |
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1 /* Copyright (C) 2006-2007 Timo Sirainen */ |
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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 "ioloop.h" |
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6 #include "mkdir-parents.h" |
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7 #include "unlink-directory.h" |
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8 #include "mailbox-list-private.h" |
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9 |
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10 #include <time.h> |
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11 #include <unistd.h> |
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12 #include <dirent.h> |
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13 #include <sys/stat.h> |
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14 |
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15 /* 20 * (200+1) < 4096 which is the standard PATH_MAX. Having these settings |
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16 prevents malicious user from creating eg. "a/a/a/.../a" mailbox name and |
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17 then start renaming them to larger names from end to beginning, which |
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18 eventually would start causing the failures when trying to use too |
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19 long mailbox names. */ |
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20 #define MAILBOX_MAX_HIERARCHY_LEVELS 20 |
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21 #define MAILBOX_MAX_HIERARCHY_NAME_LENGTH 200 |
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22 |
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23 /* Message to show to users when critical error occurs */ |
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24 #define CRITICAL_MSG \ |
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25 "Internal error occurred. Refer to server log for more information." |
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26 #define CRITICAL_MSG_STAMP CRITICAL_MSG " [%Y-%m-%d %H:%M:%S]" |
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27 |
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28 struct mailbox_list_module_register mailbox_list_module_register = { 0 }; |
4814 | 29 |
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30 void (*hook_mailbox_list_created)(struct mailbox_list *list); |
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31 |
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32 static ARRAY_DEFINE(mailbox_list_drivers, const struct mailbox_list *); |
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33 |
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34 static bool mailbox_list_driver_find(const char *name, unsigned int *idx_r) |
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35 { |
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36 const struct mailbox_list *const *drivers; |
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37 unsigned int i, count; |
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38 |
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39 drivers = array_get(&mailbox_list_drivers, &count); |
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40 for (i = 0; i < count; i++) { |
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41 if (strcasecmp(drivers[i]->name, name) == 0) { |
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42 *idx_r = i; |
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43 return TRUE; |
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44 } |
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45 } |
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46 return FALSE; |
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47 } |
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48 |
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49 void mailbox_list_register(const struct mailbox_list *list) |
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50 { |
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51 if (!array_is_created(&mailbox_list_drivers)) |
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52 i_array_init(&mailbox_list_drivers, 4); |
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53 else { |
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54 unsigned int idx; |
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55 |
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56 if (mailbox_list_driver_find(list->name, &idx)) { |
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57 i_fatal("mailbox_list_register(%s): duplicate driver", |
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58 list->name); |
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59 } |
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60 } |
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61 |
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62 array_append(&mailbox_list_drivers, &list, 1); |
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63 } |
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64 |
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65 void mailbox_list_unregister(const struct mailbox_list *list) |
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66 { |
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67 unsigned int idx; |
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68 |
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69 if (!mailbox_list_driver_find(list->name, &idx)) { |
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70 i_fatal("mailbox_list_unregister(%s): unknown driver", |
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71 list->name); |
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72 } |
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73 array_delete(&mailbox_list_drivers, idx, 1); |
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74 |
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75 if (array_count(&mailbox_list_drivers) == 0) |
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76 array_free(&mailbox_list_drivers); |
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77 } |
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78 |
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79 int mailbox_list_init(struct mail_namespace *ns, const char *driver, |
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80 const struct mailbox_list_settings *set, |
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81 enum mailbox_list_flags flags, |
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82 struct mailbox_list **list_r, const char **error_r) |
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83 { |
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84 const struct mailbox_list *const *class_p; |
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85 struct mailbox_list *list; |
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86 unsigned int idx; |
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87 |
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88 if (!mailbox_list_driver_find(driver, &idx)) { |
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89 *error_r = "Unknown mailbox list driver"; |
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90 return -1; |
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91 } |
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92 |
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94 i_assert(set->subscription_fname == NULL || | |
95 *set->subscription_fname != '\0'); | |
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96 |
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97 class_p = array_idx(&mailbox_list_drivers, idx); |
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98 list = (*class_p)->v.alloc(); |
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99 |
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100 list->ns = ns; |
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101 list->flags = flags; |
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102 list->cached_uid = (uid_t)-1; |
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103 list->cached_gid = (gid_t)-1; |
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104 |
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105 /* copy settings */ |
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106 list->set.root_dir = p_strdup(list->pool, set->root_dir); |
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107 list->set.index_dir = set->index_dir == NULL || |
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108 strcmp(set->index_dir, set->root_dir) == 0 ? NULL : |
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109 p_strdup(list->pool, set->index_dir); |
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110 list->set.control_dir = set->control_dir == NULL || |
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111 strcmp(set->control_dir, set->root_dir) == 0 ? NULL : |
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112 p_strdup(list->pool, set->control_dir); |
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113 |
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115 *list->set.index_dir != '\0') { | |
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116 if (mkdir_parents(list->set.index_dir, 0700) < 0 && |
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117 errno != EEXIST) |
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118 i_error("mkdir(%s) failed: %m", list->set.index_dir); |
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119 } |
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120 if (list->set.control_dir != NULL) { |
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121 if (mkdir_parents(list->set.control_dir, 0700) < 0 && |
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122 errno != EEXIST) |
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123 i_error("mkdir(%s) failed: %m", list->set.control_dir); |
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124 } |
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125 |
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126 list->set.inbox_path = p_strdup(list->pool, set->inbox_path); |
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127 list->set.subscription_fname = |
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128 p_strdup(list->pool, set->subscription_fname); |
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129 list->set.maildir_name = p_strdup(list->pool, set->maildir_name); |
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130 |
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131 list->set.mail_storage_flags = set->mail_storage_flags; |
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132 list->set.lock_method = set->lock_method; |
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133 |
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134 if ((flags & MAILBOX_LIST_FLAG_DEBUG) != 0) { |
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135 i_info("%s: root=%s, index=%s, control=%s, inbox=%s", |
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136 driver, list->set.root_dir, |
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137 list->set.index_dir == NULL ? "" : list->set.index_dir, |
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138 list->set.control_dir == NULL ? |
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139 "" : list->set.control_dir, |
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140 list->set.inbox_path == NULL ? |
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141 "" : list->set.inbox_path); |
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142 } |
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143 |
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144 array_create(&list->module_contexts, list->pool, sizeof(void *), 5); |
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145 |
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146 if (hook_mailbox_list_created != NULL) |
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147 hook_mailbox_list_created(list); |
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148 |
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149 list->set.mail_storage_flags = NULL; |
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150 list->set.lock_method = NULL; |
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151 |
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152 *list_r = list; |
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153 return 0; |
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154 } |
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155 |
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156 void mailbox_list_deinit(struct mailbox_list *list) |
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157 { |
5613 | 158 i_free_and_null(list->error_string); |
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159 |
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160 list->v.deinit(list); |
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161 } |
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162 |
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163 const char *mailbox_list_get_driver_name(struct mailbox_list *list) |
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164 { |
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165 return list->name; |
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166 } |
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167 |
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168 char mailbox_list_get_hierarchy_sep(struct mailbox_list *list) |
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169 { |
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170 return list->hierarchy_sep; |
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171 } |
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172 |
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Added mailbox_list to struct mail_namespace. Added a few functions to get
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173 enum mailbox_list_flags mailbox_list_get_flags(struct mailbox_list *list) |
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Added mailbox_list to struct mail_namespace. Added a few functions to get
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174 { |
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175 return list->flags; |
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176 } |
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177 |
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178 struct mail_namespace *mailbox_list_get_namespace(struct mailbox_list *list) |
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179 { |
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180 return list->ns; |
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181 } |
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182 |
5839
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183 bool mailbox_list_is_valid_pattern(struct mailbox_list *list, |
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184 const char *pattern) |
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185 { |
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186 return list->v.is_valid_pattern(list, pattern); |
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187 } |
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188 |
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189 bool mailbox_list_is_valid_existing_name(struct mailbox_list *list, |
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190 const char *name) |
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191 { |
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192 return list->v.is_valid_existing_name(list, name); |
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193 } |
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194 |
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195 bool mailbox_list_is_valid_create_name(struct mailbox_list *list, |
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196 const char *name) |
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197 { |
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198 return list->v.is_valid_create_name(list, name); |
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199 } |
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200 |
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201 const char *mailbox_list_get_path(struct mailbox_list *list, const char *name, |
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202 enum mailbox_list_path_type type) |
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203 { |
5470
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Moved some common code to mailbox-list.c
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|
204 mailbox_list_clear_error(list); |
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205 |
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206 return list->v.get_path(list, name, type); |
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207 } |
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208 |
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Added mailbox_list_get_permissions() and MAILBOX_LIST_ITER_RAW_LIST.
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209 int mailbox_list_get_permissions(struct mailbox_list *list, const char *name, |
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Added mailbox_list_get_permissions() and MAILBOX_LIST_ITER_RAW_LIST.
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210 mode_t *mode_r, uid_t *uid_r, gid_t *gid_r) |
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211 { |
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212 const char *path; |
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213 struct stat st; |
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214 |
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215 mailbox_list_clear_error(list); |
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216 |
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217 path = mailbox_list_get_path(list, name, |
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218 MAILBOX_LIST_PATH_TYPE_MAILBOX); |
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219 if (*path == '\0') |
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220 return -1; |
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221 |
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222 if (stat(path, &st) < 0) { |
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223 if (ENOTFOUND(errno)) |
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224 return 0; |
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225 mailbox_list_set_critical(list, "stat(%s) failed: %m", path); |
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226 return -1; |
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227 } |
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228 |
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229 *mode_r = st.st_mode & 0666; |
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230 |
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231 if (list->cached_uid == (uid_t)-1) |
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232 list->cached_uid = geteuid(); |
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233 *uid_r = list->cached_uid == st.st_uid ? (uid_t)-1 : st.st_uid; |
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|
234 |
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235 if (S_ISDIR(st.st_mode) && (st.st_mode & S_ISGID) != 0) { |
3c8d3c722539
Added mailbox_list_get_permissions() and MAILBOX_LIST_ITER_RAW_LIST.
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changeset
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236 /* directory's GID is used automatically for new files */ |
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237 *gid_r = (gid_t)-1; |
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238 } else { |
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Added mailbox_list_get_permissions() and MAILBOX_LIST_ITER_RAW_LIST.
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239 if (list->cached_gid == (gid_t)-1) |
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240 list->cached_gid = getegid(); |
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241 *gid_r = list->cached_gid == st.st_gid ? (gid_t)-1 : st.st_gid; |
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242 } |
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243 return 1; |
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244 } |
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245 |
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246 const char *mailbox_list_get_temp_prefix(struct mailbox_list *list) |
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247 { |
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248 return list->v.get_temp_prefix(list); |
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249 } |
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250 |
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251 const char *mailbox_list_join_refpattern(struct mailbox_list *list, |
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252 const char *ref, const char *pattern) |
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253 { |
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254 if (list->v.join_refpattern != NULL) |
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255 return list->v.join_refpattern(list, ref, pattern); |
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256 |
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257 /* the default implementation: */ |
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258 if (*ref != '\0') { |
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259 /* merge reference and pattern */ |
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260 pattern = t_strconcat(ref, pattern, NULL); |
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261 } |
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262 return pattern; |
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263 } |
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264 |
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265 int mailbox_list_get_mailbox_name_status(struct mailbox_list *list, |
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266 const char *name, |
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267 enum mailbox_name_status *status) |
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268 { |
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269 mailbox_list_clear_error(list); |
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270 |
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271 if (!mailbox_list_is_valid_existing_name(list, name)) { |
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272 *status = MAILBOX_NAME_INVALID; |
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273 return 0; |
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274 } |
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275 |
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276 return list->v.get_mailbox_name_status(list, name, status); |
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277 } |
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278 |
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279 struct mailbox_list_iterate_context * |
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280 mailbox_list_iter_init(struct mailbox_list *list, const char *pattern, |
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281 enum mailbox_list_iter_flags flags) |
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282 { |
5473 | 283 mailbox_list_clear_error(list); |
284 | |
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285 return list->v.iter_init(list, pattern, flags); |
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286 } |
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287 |
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288 const struct mailbox_info * |
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289 mailbox_list_iter_next(struct mailbox_list_iterate_context *ctx) |
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290 { |
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291 return ctx->list->v.iter_next(ctx); |
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292 } |
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293 |
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294 int mailbox_list_iter_deinit(struct mailbox_list_iterate_context **_ctx) |
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295 { |
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296 struct mailbox_list_iterate_context *ctx = *_ctx; |
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297 |
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298 *_ctx = NULL; |
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299 |
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300 return ctx->list->v.iter_deinit(ctx); |
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301 } |
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302 |
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303 int mailbox_list_set_subscribed(struct mailbox_list *list, |
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304 const char *name, bool set) |
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305 { |
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306 mailbox_list_clear_error(list); |
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307 |
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308 return list->v.set_subscribed(list, name, set); |
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309 } |
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310 |
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311 int mailbox_list_delete_mailbox(struct mailbox_list *list, const char *name) |
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312 { |
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Verify that mailbox name is valid before deleting it.
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313 if (!mailbox_list_is_valid_existing_name(list, name)) { |
5613 | 314 mailbox_list_set_error(list, MAIL_ERROR_PARAMS, |
315 "Invalid mailbox name"); | |
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316 return -1; |
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317 } |
5472 | 318 if (strcmp(name, "INBOX") == 0) { |
5613 | 319 mailbox_list_set_error(list, MAIL_ERROR_NOTPOSSIBLE, |
320 "INBOX can't be deleted."); | |
5472 | 321 return -1; |
322 } | |
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323 return list->v.delete_mailbox(list, name); |
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324 } |
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325 |
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326 int mailbox_list_rename_mailbox(struct mailbox_list *list, |
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327 const char *oldname, const char *newname) |
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328 { |
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329 if (!mailbox_list_is_valid_existing_name(list, oldname) || |
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330 !mailbox_list_is_valid_create_name(list, newname)) { |
5613 | 331 mailbox_list_set_error(list, MAIL_ERROR_PARAMS, |
332 "Invalid mailbox name"); | |
5470
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333 return -1; |
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334 } |
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335 |
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336 return list->v.rename_mailbox(list, oldname, newname); |
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337 } |
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338 |
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339 int mailbox_list_delete_index_control(struct mailbox_list *list, |
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340 const char *name) |
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341 { |
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342 const char *path, *index_dir, *dir; |
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343 |
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344 path = mailbox_list_get_path(list, name, |
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345 MAILBOX_LIST_PATH_TYPE_MAILBOX); |
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346 |
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347 /* delete the index directory first, so that if we crash we don't |
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348 leave indexes for deleted mailboxes lying around */ |
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349 index_dir = mailbox_list_get_path(list, name, |
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350 MAILBOX_LIST_PATH_TYPE_INDEX); |
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351 if (*index_dir != '\0' && strcmp(index_dir, path) != 0) { |
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352 if (unlink_directory(index_dir, TRUE) < 0 && errno != ENOENT) { |
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353 mailbox_list_set_critical(list, |
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354 "unlink_directory(%s) failed: %m", index_dir); |
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355 return -1; |
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356 } |
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357 } |
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358 |
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359 /* control directory next */ |
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360 dir = mailbox_list_get_path(list, name, MAILBOX_LIST_PATH_TYPE_CONTROL); |
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361 if (*dir != '\0' && strcmp(dir, path) != 0 && |
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362 strcmp(dir, index_dir) != 0) { |
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363 if (unlink_directory(dir, TRUE) < 0 && errno != ENOENT) { |
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364 mailbox_list_set_critical(list, |
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365 "unlink_directory(%s) failed: %m", dir); |
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Moved delete/rename operations to mailbox_list API. Fixed mbox/maildir to
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366 return -1; |
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367 } |
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368 } |
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369 return 0; |
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370 } |
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371 |
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372 bool mailbox_list_name_is_too_large(const char *name, char sep) |
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373 { |
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374 unsigned int levels = 1, level_len = 0; |
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375 |
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376 for (; *name != '\0'; name++) { |
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377 if (*name == sep) { |
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378 if (level_len > MAILBOX_MAX_HIERARCHY_NAME_LENGTH) |
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379 return TRUE; |
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380 levels++; |
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381 level_len = 0; |
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382 } else { |
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383 level_len++; |
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384 } |
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385 } |
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386 |
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387 if (level_len > MAILBOX_MAX_HIERARCHY_NAME_LENGTH) |
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388 return TRUE; |
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389 if (levels > MAILBOX_MAX_HIERARCHY_LEVELS) |
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390 return TRUE; |
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391 return FALSE; |
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392 } |
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393 |
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394 enum mailbox_list_file_type mailbox_list_get_file_type(const struct dirent *d) |
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395 { |
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396 enum mailbox_list_file_type type; |
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397 |
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398 #ifdef HAVE_DIRENT_D_TYPE |
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399 switch (d->d_type) { |
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400 case DT_UNKNOWN: |
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401 type = MAILBOX_LIST_FILE_TYPE_UNKNOWN; |
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402 break; |
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403 case DT_REG: |
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404 type = MAILBOX_LIST_FILE_TYPE_FILE; |
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405 break; |
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406 case DT_DIR: |
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407 type = MAILBOX_LIST_FILE_TYPE_DIR; |
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408 break; |
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409 case DT_LNK: |
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410 type = MAILBOX_LIST_FILE_TYPE_SYMLINK; |
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411 break; |
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412 default: |
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413 type = MAILBOX_LIST_FILE_TYPE_OTHER; |
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414 break; |
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415 } |
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416 #else |
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417 type = MAILBOX_LIST_FILE_TYPE_UNKNOWN; |
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418 #endif |
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419 return type; |
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420 } |
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421 |
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422 const char *mailbox_list_get_last_error(struct mailbox_list *list, |
5613 | 423 enum mail_error *error_r) |
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424 { |
5613 | 425 *error_r = list->error; |
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426 |
5613 | 427 return list->error_string != NULL ? list->error_string : |
428 "Unknown internal list error"; | |
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429 } |
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430 |
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431 void mailbox_list_clear_error(struct mailbox_list *list) |
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432 { |
5613 | 433 i_free_and_null(list->error_string); |
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434 |
5613 | 435 list->error = MAIL_ERROR_NONE; |
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436 } |
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437 |
5613 | 438 void mailbox_list_set_error(struct mailbox_list *list, |
439 enum mail_error error, const char *string) | |
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440 { |
5613 | 441 i_free(list->error_string); |
442 list->error_string = i_strdup(string); | |
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443 |
5613 | 444 list->error = error; |
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445 } |
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446 |
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447 void mailbox_list_set_internal_error(struct mailbox_list *list) |
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448 { |
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449 struct tm *tm; |
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450 char str[256]; |
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451 |
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452 tm = localtime(&ioloop_time); |
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453 |
5613 | 454 i_free(list->error_string); |
455 list->error_string = | |
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456 strftime(str, sizeof(str), CRITICAL_MSG_STAMP, tm) > 0 ? |
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457 i_strdup(str) : i_strdup(CRITICAL_MSG); |
5613 | 458 list->error = MAIL_ERROR_TEMP; |
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459 } |
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460 |
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461 void mailbox_list_set_critical(struct mailbox_list *list, const char *fmt, ...) |
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462 { |
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463 va_list va; |
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464 |
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465 va_start(va, fmt); |
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466 i_error("%s", t_strdup_vprintf(fmt, va)); |
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467 va_end(va); |
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468 |
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469 /* critical errors may contain sensitive data, so let user |
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470 see only "Internal error" with a timestamp to make it |
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471 easier to look from log files the actual error message. */ |
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472 mailbox_list_set_internal_error(list); |
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473 } |
5613 | 474 |
475 bool mailbox_list_set_error_from_errno(struct mailbox_list *list) | |
476 { | |
477 const char *error_string; | |
478 enum mail_error error; | |
479 | |
480 if (!mail_error_from_errno(&error, &error_string)) | |
481 return FALSE; | |
482 | |
483 mailbox_list_set_error(list, error, error_string); | |
484 return TRUE; | |
485 } |