1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
#include "first.h"
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "buffer.h"
#include "http_header.h"
#include "log.h"
#include "plugin.h"
#include "request.h"
#include "stat_cache.h"
typedef struct {
const array *indexfiles;
} plugin_config;
typedef struct {
PLUGIN_DATA;
plugin_config defaults;
plugin_config conf;
} plugin_data;
INIT_FUNC(mod_indexfile_init) {
return ck_calloc(1, sizeof(plugin_data));
}
static void mod_indexfile_merge_config_cpv(plugin_config * const pconf, const config_plugin_value_t * const cpv) {
switch (cpv->k_id) { /* index into static config_plugin_keys_t cpk[] */
case 0: /* index-file.names */
case 1: /* server.indexfiles */
pconf->indexfiles = cpv->v.a;
break;
default:/* should not happen */
return;
}
}
static void mod_indexfile_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) {
do {
mod_indexfile_merge_config_cpv(pconf, cpv);
} while ((++cpv)->k_id != -1);
}
static void mod_indexfile_patch_config(request_st * const r, plugin_data * const p) {
p->conf = p->defaults; /* copy small struct instead of memcpy() */
/*memcpy(&p->conf, &p->defaults, sizeof(plugin_config));*/
for (int i = 1, used = p->nconfig; i < used; ++i) {
if (config_check_cond(r, (uint32_t)p->cvlist[i].k_id))
mod_indexfile_merge_config(&p->conf,p->cvlist+p->cvlist[i].v.u2[0]);
}
}
SETDEFAULTS_FUNC(mod_indexfile_set_defaults) {
static const config_plugin_keys_t cpk[] = {
{ CONST_STR_LEN("index-file.names"),
T_CONFIG_ARRAY_VLIST,
T_CONFIG_SCOPE_CONNECTION }
,{ CONST_STR_LEN("server.indexfiles"),
T_CONFIG_ARRAY_VLIST,
T_CONFIG_SCOPE_CONNECTION }
,{ NULL, 0,
T_CONFIG_UNSET,
T_CONFIG_SCOPE_UNSET }
};
plugin_data * const p = p_d;
if (!config_plugin_values_init(srv, p, cpk, "mod_indexfile"))
return HANDLER_ERROR;
/* initialize p->defaults from global config context */
if (p->nconfig > 0 && p->cvlist->v.u2[1]) {
const config_plugin_value_t *cpv = p->cvlist + p->cvlist->v.u2[0];
if (-1 != cpv->k_id)
mod_indexfile_merge_config(&p->defaults, cpv);
}
return HANDLER_GO_ON;
}
__attribute_nonnull__()
static handler_t mod_indexfile_tryfiles(request_st * const r, const array * const indexfiles) {
for (uint32_t k = 0; k < indexfiles->used; ++k) {
const buffer * const v = &((data_string *)indexfiles->data[k])->value;
buffer * const b = (v->ptr[0] != '/')
? &r->physical.path
: &r->physical.doc_root; /* index file relative to doc_root */
/* if the index-file starts with a prefix as use this file as
* index-generator */
/* temporarily append to base-path buffer to check existence */
const uint32_t len = buffer_clen(b);
buffer_append_path_len(b, BUF_PTR_LEN(v));
const stat_cache_st * const st = stat_cache_path_stat(b);
buffer_truncate(b, len);
if (NULL == st) {
switch (errno) {
case ENOENT:
case ENOTDIR:
continue;
case EACCES:
r->http_status = 403;
return HANDLER_FINISHED;
default:
/* we have no idea what happened. let's tell the user so. */
r->http_status = 500;
log_perror(r->conf.errh, __FILE__, __LINE__,
"index file error for request: %s -> %s",
r->uri.path.ptr, r->physical.path.ptr);
return HANDLER_FINISHED;
}
}
/* found */
if (v->ptr[0] == '/') {
/* replace uri.path */
buffer_copy_buffer(&r->uri.path, v);
http_header_env_set(r, CONST_STR_LEN("PATH_TRANSLATED_DIRINDEX"),
BUF_PTR_LEN(&r->physical.path));
buffer_copy_path_len2(&r->physical.path,
BUF_PTR_LEN(&r->physical.doc_root),
BUF_PTR_LEN(v));
/*(XXX: not done historical, but rel_path probably should be updated)*/
/*buffer_copy_buffer(&r->physical.rel_path, v);*/
} else {
/* append to uri.path the relative path to index file (/ -> /index.php) */
buffer_append_string_buffer(&r->uri.path, v);
buffer_append_path_len(&r->physical.path, BUF_PTR_LEN(v));
/*(XXX: not done historical, but rel_path probably should be updated)*/
/*buffer_append_path_len(&r->physical.rel_path, BUF_PTR_LEN(v));*/
}
return HANDLER_GO_ON;
}
/* not found */
return HANDLER_GO_ON;
}
URIHANDLER_FUNC(mod_indexfile_subrequest) {
if (NULL != r->handler_module) return HANDLER_GO_ON;
if (!buffer_has_slash_suffix(&r->uri.path)) return HANDLER_GO_ON;
plugin_data *p = p_d;
mod_indexfile_patch_config(r, p);
if (NULL == p->conf.indexfiles) return HANDLER_GO_ON;
if (r->conf.log_request_handling) {
log_error(r->conf.errh, __FILE__, __LINE__,
"-- handling the request as Indexfile");
log_error(r->conf.errh, __FILE__, __LINE__,
"URI : %s", r->uri.path.ptr);
}
return mod_indexfile_tryfiles(r, p->conf.indexfiles);
}
__attribute_cold__
__declspec_dllexport__
int mod_indexfile_plugin_init(plugin *p);
int mod_indexfile_plugin_init(plugin *p) {
p->version = LIGHTTPD_VERSION_ID;
p->name = "indexfile";
p->init = mod_indexfile_init;
p->handle_subrequest_start = mod_indexfile_subrequest;
p->set_defaults = mod_indexfile_set_defaults;
return 0;
}
|
