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authorArno Töll <arno@debian.org>2012-11-21 23:03:44 +0100
committerArno Töll <arno@debian.org>2012-11-21 23:03:44 +0100
commitc99b717062c6228c4ac6df3831702f81c9806df4 (patch)
tree8cc83ebb36aa5b7f8691152db83071784fbfc1c7 /src/mod_trigger_b4_dl.c
parent1b24d86e6b2179692e60091dec59f797cd308b9e (diff)
downloadlighttpd-c99b717062c6228c4ac6df3831702f81c9806df4.tar.gz
Imported Upstream version 1.4.13~r1370upstream/1.4.13_r1370
Diffstat (limited to 'src/mod_trigger_b4_dl.c')
-rw-r--r--src/mod_trigger_b4_dl.c246
1 files changed, 123 insertions, 123 deletions
diff --git a/src/mod_trigger_b4_dl.c b/src/mod_trigger_b4_dl.c
index bc49b1e..8281ec0 100644
--- a/src/mod_trigger_b4_dl.c
+++ b/src/mod_trigger_b4_dl.c
@@ -24,18 +24,18 @@
/**
* this is a trigger_b4_dl for a lighttpd plugin
- *
+ *
*/
/* plugin config for all request/connections */
typedef struct {
buffer *db_filename;
-
+
buffer *trigger_url;
buffer *download_url;
buffer *deny_url;
-
+
array *mc_hosts;
buffer *mc_namespace;
#if defined(HAVE_PCRE_H)
@@ -46,58 +46,58 @@ typedef struct {
GDBM_FILE db;
#endif
-#if defined(HAVE_MEMCACHE_H)
+#if defined(HAVE_MEMCACHE_H)
struct memcache *mc;
#endif
-
+
unsigned short trigger_timeout;
unsigned short debug;
} plugin_config;
typedef struct {
PLUGIN_DATA;
-
+
buffer *tmp_buf;
-
+
plugin_config **config_storage;
-
- plugin_config conf;
+
+ plugin_config conf;
} plugin_data;
/* init the plugin data */
INIT_FUNC(mod_trigger_b4_dl_init) {
plugin_data *p;
-
+
p = calloc(1, sizeof(*p));
-
+
p->tmp_buf = buffer_init();
-
+
return p;
}
/* detroy the plugin data */
FREE_FUNC(mod_trigger_b4_dl_free) {
plugin_data *p = p_d;
-
+
UNUSED(srv);
if (!p) return HANDLER_GO_ON;
-
+
if (p->config_storage) {
size_t i;
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s = p->config_storage[i];
if (!s) continue;
-
+
buffer_free(s->db_filename);
buffer_free(s->download_url);
buffer_free(s->trigger_url);
buffer_free(s->deny_url);
-
+
buffer_free(s->mc_namespace);
array_free(s->mc_hosts);
-
+
#if defined(HAVE_PCRE_H)
if (s->trigger_regex) pcre_free(s->trigger_regex);
if (s->download_regex) pcre_free(s->download_regex);
@@ -108,16 +108,16 @@ FREE_FUNC(mod_trigger_b4_dl_free) {
#if defined(HAVE_MEMCACHE_H)
if (s->mc) mc_free(s->mc);
#endif
-
+
free(s);
}
free(p->config_storage);
}
-
+
buffer_free(p->tmp_buf);
-
+
free(p);
-
+
return HANDLER_GO_ON;
}
@@ -126,9 +126,9 @@ FREE_FUNC(mod_trigger_b4_dl_free) {
SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
plugin_data *p = p_d;
size_t i = 0;
-
-
- config_values_t cv[] = {
+
+
+ config_values_t cv[] = {
{ "trigger-before-download.gdbm-filename", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 0 */
{ "trigger-before-download.trigger-url", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 1 */
{ "trigger-before-download.download-url", NULL, T_CONFIG_STRING, T_CONFIG_SCOPE_CONNECTION }, /* 2 */
@@ -139,18 +139,18 @@ SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
{ "trigger-before-download.debug", NULL, T_CONFIG_BOOLEAN, T_CONFIG_SCOPE_CONNECTION }, /* 7 */
{ NULL, NULL, T_CONFIG_UNSET, T_CONFIG_SCOPE_UNSET }
};
-
+
if (!p) return HANDLER_ERROR;
-
+
p->config_storage = calloc(1, srv->config_context->used * sizeof(specific_config *));
-
+
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s;
#if defined(HAVE_PCRE_H)
const char *errptr;
int erroff;
#endif
-
+
s = calloc(1, sizeof(plugin_config));
s->db_filename = buffer_init();
s->download_url = buffer_init();
@@ -158,7 +158,7 @@ SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
s->deny_url = buffer_init();
s->mc_hosts = array_init();
s->mc_namespace = buffer_init();
-
+
cv[0].destination = s->db_filename;
cv[1].destination = s->trigger_url;
cv[2].destination = s->download_url;
@@ -167,41 +167,41 @@ SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
cv[5].destination = s->mc_hosts;
cv[6].destination = s->mc_namespace;
cv[7].destination = &(s->debug);
-
+
p->config_storage[i] = s;
-
+
if (0 != config_insert_values_global(srv, ((data_config *)srv->config_context->data[i])->value, cv)) {
return HANDLER_ERROR;
}
#if defined(HAVE_GDBM_H)
if (!buffer_is_empty(s->db_filename)) {
if (NULL == (s->db = gdbm_open(s->db_filename->ptr, 4096, GDBM_WRCREAT | GDBM_NOLOCK, S_IRUSR | S_IWUSR, 0))) {
- log_error_write(srv, __FILE__, __LINE__, "s",
+ log_error_write(srv, __FILE__, __LINE__, "s",
"gdbm-open failed");
return HANDLER_ERROR;
}
}
#endif
-#if defined(HAVE_PCRE_H)
+#if defined(HAVE_PCRE_H)
if (!buffer_is_empty(s->download_url)) {
if (NULL == (s->download_regex = pcre_compile(s->download_url->ptr,
0, &errptr, &erroff, NULL))) {
-
- log_error_write(srv, __FILE__, __LINE__, "sbss",
- "compiling regex for download-url failed:",
+
+ log_error_write(srv, __FILE__, __LINE__, "sbss",
+ "compiling regex for download-url failed:",
s->download_url, "pos:", erroff);
return HANDLER_ERROR;
}
}
-
+
if (!buffer_is_empty(s->trigger_url)) {
if (NULL == (s->trigger_regex = pcre_compile(s->trigger_url->ptr,
0, &errptr, &erroff, NULL))) {
-
- log_error_write(srv, __FILE__, __LINE__, "sbss",
- "compiling regex for trigger-url failed:",
+
+ log_error_write(srv, __FILE__, __LINE__, "sbss",
+ "compiling regex for trigger-url failed:",
s->trigger_url, "pos:", erroff);
-
+
return HANDLER_ERROR;
}
}
@@ -211,33 +211,33 @@ SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
#if defined(HAVE_MEMCACHE_H)
size_t k;
s->mc = mc_new();
-
+
for (k = 0; k < s->mc_hosts->used; k++) {
data_string *ds = (data_string *)s->mc_hosts->data[k];
-
+
if (0 != mc_server_add4(s->mc, ds->value->ptr)) {
- log_error_write(srv, __FILE__, __LINE__, "sb",
- "connection to host failed:",
+ log_error_write(srv, __FILE__, __LINE__, "sb",
+ "connection to host failed:",
ds->value);
-
+
return HANDLER_ERROR;
}
}
#else
- log_error_write(srv, __FILE__, __LINE__, "s",
+ log_error_write(srv, __FILE__, __LINE__, "s",
"memcache support is not compiled in but trigger-before-download.memcache-hosts is set, aborting");
return HANDLER_ERROR;
#endif
}
-
+
#if (!defined(HAVE_GDBM_H) && !defined(HAVE_MEMCACHE_H)) || !defined(HAVE_PCRE_H)
- log_error_write(srv, __FILE__, __LINE__, "s",
+ log_error_write(srv, __FILE__, __LINE__, "s",
"(either gdbm or libmemcache) and pcre are require, but were not found, aborting");
return HANDLER_ERROR;
#endif
}
-
+
return HANDLER_GO_ON;
}
@@ -246,14 +246,14 @@ SETDEFAULTS_FUNC(mod_trigger_b4_dl_set_defaults) {
static int mod_trigger_b4_dl_patch_connection(server *srv, connection *con, plugin_data *p) {
size_t i, j;
plugin_config *s = p->config_storage[0];
-
+
#if defined(HAVE_GDBM)
PATCH(db);
-#endif
+#endif
#if defined(HAVE_PCRE_H)
PATCH(download_regex);
PATCH(trigger_regex);
-#endif
+#endif
PATCH(trigger_timeout);
PATCH(deny_url);
PATCH(mc_namespace);
@@ -261,15 +261,15 @@ static int mod_trigger_b4_dl_patch_connection(server *srv, connection *con, plug
#if defined(HAVE_MEMCACHE_H)
PATCH(mc);
#endif
-
+
/* skip the first, the global context */
for (i = 1; i < srv->config_context->used; i++) {
data_config *dc = (data_config *)srv->config_context->data[i];
s = p->config_storage[i];
-
+
/* condition didn't match */
if (!config_check_cond(srv, con, dc)) continue;
-
+
/* merge config */
for (j = 0; j < dc->value->used; j++) {
data_unset *du = dc->value->data[j];
@@ -301,7 +301,7 @@ static int mod_trigger_b4_dl_patch_connection(server *srv, connection *con, plug
}
}
}
-
+
return 0;
}
#undef PATCH
@@ -315,20 +315,20 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
int n;
# define N 10
int ovec[N * 3];
-
+
if (con->uri.path->used == 0) return HANDLER_GO_ON;
-
+
mod_trigger_b4_dl_patch_connection(srv, con, p);
-
+
if (!p->conf.trigger_regex || !p->conf.download_regex) return HANDLER_GO_ON;
-
+
# if !defined(HAVE_GDBM_H) && !defined(HAVE_MEMCACHE_H)
return HANDLER_GO_ON;
# elif defined(HAVE_GDBM_H) && defined(HAVE_MEMCACHE_H)
if (!p->conf.db && !p->conf.mc) return HANDLER_GO_ON;
if (p->conf.db && p->conf.mc) {
/* can't decide which one */
-
+
return HANDLER_GO_ON;
}
# elif defined(HAVE_GDBM_H)
@@ -336,12 +336,12 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
# else
if (!p->conf.mc) return HANDLER_GO_ON;
# endif
-
+
if (NULL != (ds = (data_string *)array_get_element(con->request.headers, "X-Forwarded-For"))) {
/* X-Forwarded-For contains the ip behind the proxy */
-
+
remote_ip = ds->value->ptr;
-
+
/* memcache can't handle spaces */
} else {
remote_ip = inet_ntop_cache_get_ip(srv, &(con->dst_addr));
@@ -350,13 +350,13 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
if (p->conf.debug) {
log_error_write(srv, __FILE__, __LINE__, "ss", "(debug) remote-ip:", remote_ip);
}
-
+
/* check if URL is a trigger -> insert IP into DB */
if ((n = pcre_exec(p->conf.trigger_regex, NULL, con->uri.path->ptr, con->uri.path->used - 1, 0, 0, ovec, 3 * N)) < 0) {
if (n != PCRE_ERROR_NOMATCH) {
log_error_write(srv, __FILE__, __LINE__, "sd",
"execution error while matching:", n);
-
+
return HANDLER_ERROR;
}
} else {
@@ -364,34 +364,34 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
if (p->conf.db) {
/* the trigger matched */
datum key, val;
-
+
key.dptr = (char *)remote_ip;
key.dsize = strlen(remote_ip);
-
+
val.dptr = (char *)&(srv->cur_ts);
val.dsize = sizeof(srv->cur_ts);
-
+
if (0 != gdbm_store(p->conf.db, key, val, GDBM_REPLACE)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"insert failed");
}
}
# endif
-# if defined(HAVE_MEMCACHE_H)
+# if defined(HAVE_MEMCACHE_H)
if (p->conf.mc) {
size_t i;
buffer_copy_string_buffer(p->tmp_buf, p->conf.mc_namespace);
buffer_append_string(p->tmp_buf, remote_ip);
-
+
for (i = 0; i < p->tmp_buf->used - 1; i++) {
if (p->tmp_buf->ptr[i] == ' ') p->tmp_buf->ptr[i] = '-';
}
-
+
if (p->conf.debug) {
log_error_write(srv, __FILE__, __LINE__, "sb", "(debug) triggered IP:", p->tmp_buf);
}
- if (0 != mc_set(p->conf.mc,
+ if (0 != mc_set(p->conf.mc,
CONST_BUF_LEN(p->tmp_buf),
(char *)&(srv->cur_ts), sizeof(srv->cur_ts),
p->conf.trigger_timeout, 0)) {
@@ -401,7 +401,7 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
}
# endif
}
-
+
/* check if URL is a download -> check IP in DB, update timestamp */
if ((n = pcre_exec(p->conf.download_regex, NULL, con->uri.path->ptr, con->uri.path->used - 1, 0, 0, ovec, 3 * N)) < 0) {
if (n != PCRE_ERROR_NOMATCH) {
@@ -411,93 +411,93 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
}
} else {
/* the download uri matched */
-# if defined(HAVE_GDBM_H)
+# if defined(HAVE_GDBM_H)
if (p->conf.db) {
datum key, val;
time_t last_hit;
-
+
key.dptr = (char *)remote_ip;
key.dsize = strlen(remote_ip);
-
+
val = gdbm_fetch(p->conf.db, key);
-
+
if (val.dptr == NULL) {
/* not found, redirect */
-
+
response_header_insert(srv, con, CONST_STR_LEN("Location"), CONST_BUF_LEN(p->conf.deny_url));
-
+
con->http_status = 307;
-
+
return HANDLER_FINISHED;
}
-
+
last_hit = *(time_t *)(val.dptr);
-
+
free(val.dptr);
-
+
if (srv->cur_ts - last_hit > p->conf.trigger_timeout) {
/* found, but timeout, redirect */
-
+
response_header_insert(srv, con, CONST_STR_LEN("Location"), CONST_BUF_LEN(p->conf.deny_url));
con->http_status = 307;
-
+
if (p->conf.db) {
if (0 != gdbm_delete(p->conf.db, key)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"delete failed");
}
}
-
+
return HANDLER_FINISHED;
}
-
+
val.dptr = (char *)&(srv->cur_ts);
val.dsize = sizeof(srv->cur_ts);
-
+
if (0 != gdbm_store(p->conf.db, key, val, GDBM_REPLACE)) {
log_error_write(srv, __FILE__, __LINE__, "s",
"insert failed");
}
}
# endif
-
-# if defined(HAVE_MEMCACHE_H)
+
+# if defined(HAVE_MEMCACHE_H)
if (p->conf.mc) {
void *r;
size_t i;
-
+
buffer_copy_string_buffer(p->tmp_buf, p->conf.mc_namespace);
buffer_append_string(p->tmp_buf, remote_ip);
-
+
for (i = 0; i < p->tmp_buf->used - 1; i++) {
if (p->tmp_buf->ptr[i] == ' ') p->tmp_buf->ptr[i] = '-';
}
-
+
if (p->conf.debug) {
log_error_write(srv, __FILE__, __LINE__, "sb", "(debug) checking IP:", p->tmp_buf);
}
/**
- *
+ *
* memcached is do expiration for us, as long as we can fetch it every thing is ok
- * and the timestamp is updated
- *
+ * and the timestamp is updated
+ *
*/
- if (NULL == (r = mc_aget(p->conf.mc,
+ if (NULL == (r = mc_aget(p->conf.mc,
CONST_BUF_LEN(p->tmp_buf)
))) {
-
+
response_header_insert(srv, con, CONST_STR_LEN("Location"), CONST_BUF_LEN(p->conf.deny_url));
-
+
con->http_status = 307;
-
+
return HANDLER_FINISHED;
}
-
+
free(r);
-
+
/* set a new timeout */
- if (0 != mc_set(p->conf.mc,
+ if (0 != mc_set(p->conf.mc,
CONST_BUF_LEN(p->tmp_buf),
(char *)&(srv->cur_ts), sizeof(srv->cur_ts),
p->conf.trigger_timeout, 0)) {
@@ -507,13 +507,13 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
}
# endif
}
-
+
#else
UNUSED(srv);
UNUSED(con);
UNUSED(p_d);
#endif
-
+
return HANDLER_GO_ON;
}
@@ -521,21 +521,21 @@ URIHANDLER_FUNC(mod_trigger_b4_dl_uri_handler) {
TRIGGER_FUNC(mod_trigger_b4_dl_handle_trigger) {
plugin_data *p = p_d;
size_t i;
-
+
/* check DB each minute */
if (srv->cur_ts % 60 != 0) return HANDLER_GO_ON;
-
+
/* cleanup */
for (i = 0; i < srv->config_context->used; i++) {
plugin_config *s = p->config_storage[i];
datum key, val, okey;
-
+
if (!s->db) continue;
-
+
okey.dptr = NULL;
-
- /* according to the manual this loop + delete does delete all entries on its way
- *
+
+ /* according to the manual this loop + delete does delete all entries on its way
+ *
* we don't care as the next round will remove them. We don't have to perfect here.
*/
for (key = gdbm_firstkey(s->db); key.dptr; key = gdbm_nextkey(s->db, okey)) {
@@ -544,21 +544,21 @@ TRIGGER_FUNC(mod_trigger_b4_dl_handle_trigger) {
free(okey.dptr);
okey.dptr = NULL;
}
-
+
val = gdbm_fetch(s->db, key);
-
+
last_hit = *(time_t *)(val.dptr);
-
+
free(val.dptr);
-
+
if (srv->cur_ts - last_hit > s->trigger_timeout) {
gdbm_delete(s->db, key);
}
-
+
okey = key;
}
if (okey.dptr) free(okey.dptr);
-
+
/* reorg once a day */
if ((srv->cur_ts % (60 * 60 * 24) != 0)) gdbm_reorganize(s->db);
}
@@ -571,7 +571,7 @@ TRIGGER_FUNC(mod_trigger_b4_dl_handle_trigger) {
int mod_trigger_b4_dl_plugin_init(plugin *p) {
p->version = LIGHTTPD_VERSION_ID;
p->name = buffer_init_string("trigger_b4_dl");
-
+
p->init = mod_trigger_b4_dl_init;
p->handle_uri_clean = mod_trigger_b4_dl_uri_handler;
p->set_defaults = mod_trigger_b4_dl_set_defaults;
@@ -579,8 +579,8 @@ int mod_trigger_b4_dl_plugin_init(plugin *p) {
p->handle_trigger = mod_trigger_b4_dl_handle_trigger;
#endif
p->cleanup = mod_trigger_b4_dl_free;
-
+
p->data = NULL;
-
+
return 0;
}