1 #ifndef MAILBOX_LIST_PRIVATE_H
2 #define MAILBOX_LIST_PRIVATE_H
3 
4 #include "mailbox-log.h"
5 #include "mailbox-list-notify.h"
6 #include "mail-namespace.h"
7 #include "mailbox-list.h"
8 #include "mailbox-list-iter.h"
9 #include "mail-storage-settings.h"
10 
11 #define MAILBOX_LIST_NAME_MAILDIRPLUSPLUS "maildir++"
12 #define MAILBOX_LIST_NAME_IMAPDIR "imapdir"
13 #define MAILBOX_LIST_NAME_FS "fs"
14 #define MAILBOX_LIST_NAME_INDEX "index"
15 #define MAILBOX_LIST_NAME_NONE "none"
16 
17 #define MAILBOX_LIST_INDEX_DEFAULT_PREFIX "dovecot.list.index"
18 #define MAILBOX_LOG_FILE_NAME "dovecot.mailbox.log"
19 
20 #define T_MAILBOX_LIST_ERR_NOT_FOUND(list, name) \
21 	t_strdup_printf(MAIL_ERRSTR_MAILBOX_NOT_FOUND, \
22 			mailbox_list_get_vname(list, name))
23 
24 struct stat;
25 struct dirent;
26 struct fs;
27 struct imap_match_glob;
28 struct mailbox_tree_context;
29 struct mailbox_list_notify;
30 struct mailbox_list_notify_rec;
31 
32 #define MAILBOX_INFO_FLAGS_FINISHED(flags) \
33 	(((flags) & (MAILBOX_SELECT | MAILBOX_NOSELECT | \
34 		     MAILBOX_NONEXISTENT)) != 0)
35 
36 struct mailbox_list_vfuncs {
37 	struct mailbox_list *(*alloc)(void);
38 	int (*init)(struct mailbox_list *list, const char **error_r);
39 	void (*deinit)(struct mailbox_list *list);
40 
41 	int (*get_storage)(struct mailbox_list **list, const char *vname,
42 			   struct mail_storage **storage_r);
43 
44 	char (*get_hierarchy_sep)(struct mailbox_list *list);
45 	const char *(*get_vname)(struct mailbox_list *list,
46 				 const char *storage_name);
47 	const char *(*get_storage_name)(struct mailbox_list *list,
48 					const char *vname);
49 	int (*get_path)(struct mailbox_list *list, const char *name,
50 			enum mailbox_list_path_type type, const char **path_r);
51 
52 	const char *(*get_temp_prefix)(struct mailbox_list *list, bool global);
53 	const char *(*join_refpattern)(struct mailbox_list *list,
54 				       const char *ref, const char *pattern);
55 
56 	struct mailbox_list_iterate_context *
57 		(*iter_init)(struct mailbox_list *list,
58 			     const char *const *patterns,
59 			     enum mailbox_list_iter_flags flags);
60 	const struct mailbox_info *
61 		(*iter_next)(struct mailbox_list_iterate_context *ctx);
62 	int (*iter_deinit)(struct mailbox_list_iterate_context *ctx);
63 
64 	int (*get_mailbox_flags)(struct mailbox_list *list,
65 				 const char *dir, const char *fname,
66 				 enum mailbox_list_file_type type,
67 				 enum mailbox_info_flags *flags_r);
68 	/* Returns TRUE if name is mailbox's internal file/directory.
69 	   If it does, mailbox deletion assumes it can safely delete it. */
70 	bool (*is_internal_name)(struct mailbox_list *list, const char *name);
71 
72 	/* Read subscriptions from src_list, but place them into
73 	   dest_list->subscriptions. Set errors to dest_list. */
74 	int (*subscriptions_refresh)(struct mailbox_list *src_list,
75 				     struct mailbox_list *dest_list);
76 	int (*set_subscribed)(struct mailbox_list *list,
77 			      const char *name, bool set);
78 	int (*delete_mailbox)(struct mailbox_list *list, const char *name);
79 	int (*delete_dir)(struct mailbox_list *list, const char *name);
80 	int (*delete_symlink)(struct mailbox_list *list, const char *name);
81 	int (*rename_mailbox)(struct mailbox_list *oldlist, const char *oldname,
82 			      struct mailbox_list *newlist, const char *newname);
83 
84 	int (*notify_init)(struct mailbox_list *list,
85 			   enum mailbox_list_notify_event mask,
86 			   struct mailbox_list_notify **notify_r);
87 	int (*notify_next)(struct mailbox_list_notify *notify,
88 			   const struct mailbox_list_notify_rec **rec_r);
89 	void (*notify_deinit)(struct mailbox_list_notify *notify);
90 	void (*notify_wait)(struct mailbox_list_notify *notify,
91 			    void (*callback)(void *context), void *context);
92 	void (*notify_flush)(struct mailbox_list_notify *notify);
93 };
94 
95 struct mailbox_list_module_register {
96 	unsigned int id;
97 };
98 
99 union mailbox_list_module_context {
100 	struct mailbox_list_vfuncs super;
101 	struct mailbox_list_module_register *reg;
102 };
103 
104 struct mailbox_list {
105 	const char *name;
106 	enum mailbox_list_properties props;
107 	size_t mailbox_name_max_length;
108 
109 	struct mailbox_list_vfuncs v, *vlast;
110 
111 /* private: */
112 	pool_t pool;
113 	struct mail_namespace *ns;
114 	struct mailbox_list_settings set;
115 	const struct mail_storage_settings *mail_set;
116 	enum mailbox_list_flags flags;
117 
118 	/* may not be set yet, use mailbox_list_get_permissions() to access */
119 	struct mailbox_permissions root_permissions;
120 
121 	struct mailbox_tree_context *subscriptions;
122 	time_t subscriptions_mtime, subscriptions_read_time;
123 
124 	struct mailbox_log *changelog;
125 	time_t changelog_timestamp;
126 
127 	struct file_lock *lock;
128 	int lock_refcount;
129 
130 	pool_t guid_cache_pool;
131 	HASH_TABLE(uint8_t *, struct mailbox_guid_cache_rec *) guid_cache;
132 	bool guid_cache_errors;
133 
134 	/* Last error set in mailbox_list_set_critical(). */
135 	char *last_internal_error;
136 
137 	char *error_string;
138 	enum mail_error error;
139 	bool temporary_error;
140 	ARRAY(struct mail_storage_error) error_stack;
141 
142 	ARRAY(union mailbox_list_module_context *) module_contexts;
143 
144 	bool index_root_dir_created:1;
145 	bool list_index_root_dir_created:1;
146 	bool guid_cache_updated:1;
147 	bool disable_rebuild_on_corruption:1;
148 	bool guid_cache_invalidated:1;
149 	bool last_error_is_internal:1;
150 };
151 
152 union mailbox_list_iterate_module_context {
153 	struct mailbox_list_module_register *reg;
154 };
155 
156 struct mailbox_list_iterate_context {
157 	struct mailbox_list *list;
158 	pool_t pool;
159 	enum mailbox_list_iter_flags flags;
160 	bool failed;
161 	bool index_iteration;
162 
163 	struct imap_match_glob *glob;
164 	struct mailbox_list_autocreate_iterate_context *autocreate_ctx;
165 	struct mailbox_info specialuse_info;
166 
167 	ARRAY(union mailbox_list_iterate_module_context *) module_contexts;
168 };
169 
170 struct mailbox_list_iter_update_context {
171 	struct mailbox_list_iterate_context *iter_ctx;
172 	struct mailbox_tree_context *tree_ctx;
173 
174 	struct imap_match_glob *glob;
175 	enum mailbox_info_flags leaf_flags, parent_flags;
176 
177 	bool update_only:1;
178 	bool match_parents:1;
179 };
180 
181 /* Modules should use do "my_id = mailbox_list_module_id++" and
182    use objects' module_contexts[id] for their own purposes. */
183 extern struct mailbox_list_module_register mailbox_list_module_register;
184 
185 void mailbox_lists_init(void);
186 void mailbox_lists_deinit(void);
187 
188 void mailbox_list_settings_init_defaults(struct mailbox_list_settings *set_r);
189 int mailbox_list_settings_parse(struct mail_user *user, const char *data,
190 				struct mailbox_list_settings *set_r,
191 				const char **error_r);
192 const char *
193 mailbox_list_escape_name_params(const char *vname, const char *ns_prefix,
194 				char ns_sep, char list_sep, char escape_char,
195 				const char *maildir_name);
196 const char *
197 mailbox_list_unescape_name_params(const char *src, const char *ns_prefix,
198 				  char ns_sep, char list_sep, char escape_char);
199 
200 const char *mailbox_list_default_get_storage_name(struct mailbox_list *list,
201 						  const char *vname);
202 const char *mailbox_list_default_get_vname(struct mailbox_list *list,
203 					   const char *storage_name);
204 const char *mailbox_list_get_unexpanded_path(struct mailbox_list *list,
205 					     enum mailbox_list_path_type type);
206 bool mailbox_list_set_get_root_path(const struct mailbox_list_settings *set,
207 				    enum mailbox_list_path_type type,
208 				    const char **path_r);
209 
210 int mailbox_list_delete_index_control(struct mailbox_list *list,
211 				      const char *name);
212 
213 void mailbox_list_iter_update(struct mailbox_list_iter_update_context *ctx,
214 			      const char *name);
215 int mailbox_list_iter_subscriptions_refresh(struct mailbox_list *list);
216 const struct mailbox_info *
217 mailbox_list_iter_default_next(struct mailbox_list_iterate_context *ctx);
218 
219 enum mailbox_list_file_type mailbox_list_get_file_type(const struct dirent *d);
220 int mailbox_list_dirent_is_alias_symlink(struct mailbox_list *list,
221 					 const char *dir_path,
222 					 const struct dirent *d);
223 bool mailbox_list_try_get_absolute_path(struct mailbox_list *list,
224 					const char **name);
225 void mailbox_permissions_copy(struct mailbox_permissions *dest,
226 			      const struct mailbox_permissions *src,
227 			      pool_t pool);
228 
229 void mailbox_list_add_change(struct mailbox_list *list,
230 			     enum mailbox_log_record_type type,
231 			     const guid_128_t guid_128);
232 void mailbox_name_get_sha128(const char *name, guid_128_t guid_128_r);
233 
234 void mailbox_list_clear_error(struct mailbox_list *list);
235 void mailbox_list_set_error(struct mailbox_list *list,
236 			    enum mail_error error, const char *string);
237 void mailbox_list_set_critical(struct mailbox_list *list, const char *fmt, ...)
238 	ATTR_FORMAT(2, 3);
239 void mailbox_list_set_internal_error(struct mailbox_list *list);
240 bool mailbox_list_set_error_from_errno(struct mailbox_list *list);
241 
242 const struct mailbox_info *
243 mailbox_list_iter_autocreate_filter(struct mailbox_list_iterate_context *ctx,
244 				    const struct mailbox_info *_info);
245 
246 int mailbox_list_lock(struct mailbox_list *list);
247 void mailbox_list_unlock(struct mailbox_list *list);
248 
249 #endif
250