lighttpd 1.4.x https://www.lighttpd.net/
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#include "first.h"
#include "base.h"
#include "array.h"
#include "buffer.h"
#include "log.h"
#include "http_chunk.h"
#include "http_header.h"
#include "plugin.h"
#include <stdlib.h>
#include <string.h>
typedef struct {
const array *extensions;
} plugin_config;
typedef struct {
PLUGIN_DATA;
plugin_config defaults;
plugin_config conf;
} plugin_data;
INIT_FUNC(mod_flv_streaming_init) {
return calloc(1, sizeof(plugin_data));
}
static void mod_flv_streaming_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: /* flv-streaming.extensions */
pconf->extensions = cpv->v.a;
break;
default:/* should not happen */
return;
}
}
static void mod_flv_streaming_merge_config(plugin_config * const pconf, const config_plugin_value_t *cpv) {
do {
mod_flv_streaming_merge_config_cpv(pconf, cpv);
} while ((++cpv)->k_id != -1);
}
static void mod_flv_streaming_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_flv_streaming_merge_config(&p->conf,
p->cvlist + p->cvlist[i].v.u2[0]);
}
}
SETDEFAULTS_FUNC(mod_flv_streaming_set_defaults) {
static const config_plugin_keys_t cpk[] = {
{ CONST_STR_LEN("flv-streaming.extensions"),
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_flv_streaming"))
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_flv_streaming_merge_config(&p->defaults, cpv);
}
return HANDLER_GO_ON;
}
static off_t get_param_value(buffer *qb, const char *m, size_t mlen) {
const char * const q = qb->ptr;
size_t len = buffer_string_length(qb);
if (len < mlen+2) return -1;
len -= (mlen+2);
for (size_t i = 0; i <= len; ++i) {
if (0 == memcmp(q+i, m, mlen) && q[i+mlen] == '=') {
char *err;
off_t n = strtoll(q+i+mlen+1, &err, 10);
return (*err == '\0' || *err == '&') ? n : -1;
}
do { ++i; } while (i < len && q[i] != '&');
}
return -1;
}
URIHANDLER_FUNC(mod_flv_streaming_path_handler) {
plugin_data *p = p_d;
if (NULL != r->handler_module) return HANDLER_GO_ON;
if (buffer_string_is_empty(&r->physical.path)) return HANDLER_GO_ON;
mod_flv_streaming_patch_config(r, p);
if (NULL == p->conf.extensions) return HANDLER_GO_ON;
if (!array_match_value_suffix(p->conf.extensions, &r->physical.path)) {
/* not found */
return HANDLER_GO_ON;
}
off_t start = get_param_value(&r->uri.query, CONST_STR_LEN("start"));
off_t end = get_param_value(&r->uri.query, CONST_STR_LEN("end"));
off_t len = -1;
if (start < 0) start = 0;
if (start < end)
len = end - start + 1;
else if (0 == start)
return HANDLER_GO_ON; /* let mod_staticfile send whole file */
/* if there is a start=[0-9]+ in the header use it as start,
* otherwise set start to beginning of file */
/* if there is a end=[0-9]+ in the header use it as end pos,
* otherwise send rest of file, starting from start */
/* let's build a flv header */
http_chunk_append_mem(r, CONST_STR_LEN("FLV\x1\x1\0\0\0\x9\0\0\0\x9"));
if (0 != http_chunk_append_file_range(r, &r->physical.path, start, len)) {
chunkqueue_reset(&r->write_queue);
return HANDLER_GO_ON;
}
http_header_response_set(r, HTTP_HEADER_CONTENT_TYPE, CONST_STR_LEN("Content-Type"), CONST_STR_LEN("video/x-flv"));
r->resp_body_finished = 1;
return HANDLER_FINISHED;
}
int mod_flv_streaming_plugin_init(plugin *p);
int mod_flv_streaming_plugin_init(plugin *p) {
p->version = LIGHTTPD_VERSION_ID;
p->name = "flv_streaming";
p->init = mod_flv_streaming_init;
p->handle_physical = mod_flv_streaming_path_handler;
p->set_defaults = mod_flv_streaming_set_defaults;
return 0;
}