12 /* plugin config for all request/connections */
20 plugin_config
**config_storage
;
25 /* init the plugin data */
26 INIT_FUNC(mod_alias_init
) {
29 p
= calloc(1, sizeof(*p
));
36 /* detroy the plugin data */
37 FREE_FUNC(mod_alias_free
) {
40 if (!p
) return HANDLER_GO_ON
;
42 if (p
->config_storage
) {
45 for (i
= 0; i
< srv
->config_context
->used
; i
++) {
46 plugin_config
*s
= p
->config_storage
[i
];
48 if (NULL
== s
) continue;
54 free(p
->config_storage
);
62 /* handle plugin config and check values */
64 SETDEFAULTS_FUNC(mod_alias_set_defaults
) {
68 config_values_t cv
[] = {
69 { "alias.url", NULL
, T_CONFIG_ARRAY
, T_CONFIG_SCOPE_CONNECTION
}, /* 0 */
70 { NULL
, NULL
, T_CONFIG_UNSET
, T_CONFIG_SCOPE_UNSET
}
73 if (!p
) return HANDLER_ERROR
;
75 p
->config_storage
= calloc(1, srv
->config_context
->used
* sizeof(plugin_config
*));
77 for (i
= 0; i
< srv
->config_context
->used
; i
++) {
78 data_config
const* config
= (data_config
const*)srv
->config_context
->data
[i
];
81 s
= calloc(1, sizeof(plugin_config
));
82 s
->alias
= array_init();
83 cv
[0].destination
= s
->alias
;
85 p
->config_storage
[i
] = s
;
87 if (0 != config_insert_values_global(srv
, config
->value
, cv
, i
== 0 ? T_CONFIG_SCOPE_SERVER
: T_CONFIG_SCOPE_CONNECTION
)) {
91 if (!array_is_kvstring(s
->alias
)) {
92 log_error_write(srv
, __FILE__
, __LINE__
, "s",
93 "unexpected value for alias.url; expected list of \"urlpath\" => \"filepath\"");
97 if (s
->alias
->used
>= 2) {
98 const array
*a
= s
->alias
;
101 for (j
= 0; j
< a
->used
; j
++) {
102 const buffer
*prefix
= a
->data
[a
->sorted
[j
]]->key
;
103 for (k
= j
+ 1; k
< a
->used
; k
++) {
104 const buffer
*key
= a
->data
[a
->sorted
[k
]]->key
;
106 if (buffer_string_length(key
) < buffer_string_length(prefix
)) {
109 if (memcmp(key
->ptr
, prefix
->ptr
, buffer_string_length(prefix
)) != 0) {
112 /* ok, they have same prefix. check position */
113 if (a
->sorted
[j
] < a
->sorted
[k
]) {
114 log_error_write(srv
, __FILE__
, __LINE__
, "SBSBS",
115 "url.alias: `", key
, "' will never match as `", prefix
, "' matched first");
116 return HANDLER_ERROR
;
123 return HANDLER_GO_ON
;
128 static int mod_alias_patch_connection(server
*srv
, connection
*con
, plugin_data
*p
) {
130 plugin_config
*s
= p
->config_storage
[0];
134 /* skip the first, the global context */
135 for (i
= 1; i
< srv
->config_context
->used
; i
++) {
136 data_config
*dc
= (data_config
*)srv
->config_context
->data
[i
];
137 s
= p
->config_storage
[i
];
139 /* condition didn't match */
140 if (!config_check_cond(srv
, con
, dc
)) continue;
143 for (j
= 0; j
< dc
->value
->used
; j
++) {
144 data_unset
*du
= dc
->value
->data
[j
];
146 if (buffer_is_equal_string(du
->key
, CONST_STR_LEN("alias.url"))) {
156 PHYSICALPATH_FUNC(mod_alias_physical_handler
) {
157 plugin_data
*p
= p_d
;
158 int uri_len
, basedir_len
;
162 if (buffer_is_empty(con
->physical
.path
)) return HANDLER_GO_ON
;
164 mod_alias_patch_connection(srv
, con
, p
);
166 /* not to include the tailing slash */
167 basedir_len
= buffer_string_length(con
->physical
.basedir
);
168 if ('/' == con
->physical
.basedir
->ptr
[basedir_len
-1]) --basedir_len
;
169 uri_len
= buffer_string_length(con
->physical
.path
) - basedir_len
;
170 uri_ptr
= con
->physical
.path
->ptr
+ basedir_len
;
172 for (k
= 0; k
< p
->conf
.alias
->used
; k
++) {
173 data_string
*ds
= (data_string
*)p
->conf
.alias
->data
[k
];
174 int alias_len
= buffer_string_length(ds
->key
);
176 if (alias_len
> uri_len
) continue;
177 if (buffer_is_empty(ds
->key
)) continue;
179 if (0 == (con
->conf
.force_lowercase_filenames
?
180 strncasecmp(uri_ptr
, ds
->key
->ptr
, alias_len
) :
181 strncmp(uri_ptr
, ds
->key
->ptr
, alias_len
))) {
184 buffer_copy_buffer(con
->physical
.basedir
, ds
->value
);
185 buffer_copy_buffer(srv
->tmp_buf
, ds
->value
);
186 buffer_append_string(srv
->tmp_buf
, uri_ptr
+ alias_len
);
187 buffer_copy_buffer(con
->physical
.path
, srv
->tmp_buf
);
189 return HANDLER_GO_ON
;
194 return HANDLER_GO_ON
;
197 /* this function is called at dlopen() time and inits the callbacks */
199 int mod_alias_plugin_init(plugin
*p
);
200 int mod_alias_plugin_init(plugin
*p
) {
201 p
->version
= LIGHTTPD_VERSION_ID
;
202 p
->name
= buffer_init_string("alias");
204 p
->init
= mod_alias_init
;
205 p
->handle_physical
= mod_alias_physical_handler
;
206 p
->set_defaults
= mod_alias_set_defaults
;
207 p
->cleanup
= mod_alias_free
;