1/* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements.  See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License.  You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include "httpd.h"
18#include "http_config.h"
19#include "apr_strings.h"
20
21#include "mod_dav.h"
22#include "repos.h"
23
24/* per-server configuration */
25typedef struct {
26    const char *lockdb_path;
27
28} dav_fs_server_conf;
29
30extern module AP_MODULE_DECLARE_DATA dav_fs_module;
31
32const char *dav_get_lockdb_path(const request_rec *r)
33{
34    dav_fs_server_conf *conf;
35
36    conf = ap_get_module_config(r->server->module_config, &dav_fs_module);
37    return conf->lockdb_path;
38}
39
40static void *dav_fs_create_server_config(apr_pool_t *p, server_rec *s)
41{
42    return apr_pcalloc(p, sizeof(dav_fs_server_conf));
43}
44
45static void *dav_fs_merge_server_config(apr_pool_t *p,
46                                        void *base, void *overrides)
47{
48    dav_fs_server_conf *parent = base;
49    dav_fs_server_conf *child = overrides;
50    dav_fs_server_conf *newconf;
51
52    newconf = apr_pcalloc(p, sizeof(*newconf));
53
54    newconf->lockdb_path =
55        child->lockdb_path ? child->lockdb_path : parent->lockdb_path;
56
57    return newconf;
58}
59
60/*
61 * Command handler for the DAVLockDB directive, which is TAKE1
62 */
63static const char *dav_fs_cmd_davlockdb(cmd_parms *cmd, void *config,
64                                        const char *arg1)
65{
66    dav_fs_server_conf *conf;
67    conf = ap_get_module_config(cmd->server->module_config,
68                                &dav_fs_module);
69    conf->lockdb_path = ap_server_root_relative(cmd->pool, arg1);
70
71    if (!conf->lockdb_path) {
72        return apr_pstrcat(cmd->pool, "Invalid DAVLockDB path ",
73                           arg1, NULL);
74    }
75
76    return NULL;
77}
78
79static const command_rec dav_fs_cmds[] =
80{
81    /* per server */
82    AP_INIT_TAKE1("DAVLockDB", dav_fs_cmd_davlockdb, NULL, RSRC_CONF,
83                  "specify a lock database"),
84
85    { NULL }
86};
87
88static void register_hooks(apr_pool_t *p)
89{
90    dav_hook_gather_propsets(dav_fs_gather_propsets, NULL, NULL,
91                             APR_HOOK_MIDDLE);
92    dav_hook_find_liveprop(dav_fs_find_liveprop, NULL, NULL, APR_HOOK_MIDDLE);
93    dav_hook_insert_all_liveprops(dav_fs_insert_all_liveprops, NULL, NULL,
94                                  APR_HOOK_MIDDLE);
95
96    dav_fs_register(p);
97}
98
99module AP_MODULE_DECLARE_DATA dav_fs_module =
100{
101    STANDARD20_MODULE_STUFF,
102    NULL,                        /* dir config creater */
103    NULL,                        /* dir merger --- default is to override */
104    dav_fs_create_server_config, /* server config */
105    dav_fs_merge_server_config,  /* merge server config */
106    dav_fs_cmds,                 /* command table */
107    register_hooks,              /* register hooks */
108};
109