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提交 9283d90f authored 作者: Chris Rienzo's avatar Chris Rienzo 提交者： Travis Cross
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mod_http_cache: added write file format

上级 7fcdf4a0
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正在显示 包含 127 行增加 和 51 行删除
src/mod/applications/mod_http_cache/mod_http_cache.c
浏览文件 @ 9283d90f
......@@ -97,7 +97,7 @@ struct cached_url {
};
typedef struct cached_url cached_url_t;
static cached_url_t *cached_url_create(url_cache_t *cache, const char *url);
static cached_url_t *cached_url_create(url_cache_t *cache, const char *url, const char *filename);
static void cached_url_destroy(cached_url_t *url, switch_memory_pool_t *pool);
/**
......@@ -116,7 +116,7 @@ static size_t get_file_callback(void *ptr, size_t size, size_t nmemb, void *get)
static size_t get_header_callback(void *ptr, size_t size, size_t nmemb, void *url);
static void process_cache_control_header(cached_url_t *url, char *data);
static switch_status_t http_put(url_cache_t *cache, http_profile_t *profile, switch_core_session_t *session, const char *url, const char *filename);
static switch_status_t http_put(url_cache_t *cache, http_profile_t *profile, switch_core_session_t *session, const char *url, const char *filename, int cache_local_file);
/**
* Queue used for clock cache replacement algorithm. This
......@@ -206,9 +206,10 @@ static switch_curl_slist_t *append_aws_s3_headers(switch_curl_slist_t *headers,
* @param session the (optional) session uploading the file
* @param url The URL
* @param filename The file to upload
* @param cache_local_file true if local file should be mapped to url in cache
* @return SWITCH_STATUS_SUCCESS if successful
*/
static switch_status_t http_put(url_cache_t *cache, http_profile_t *profile, switch_core_session_t *session, const char *url, const char *filename)
static switch_status_t http_put(url_cache_t *cache, http_profile_t *profile, switch_core_session_t *session, const char *url, const char *filename, int cache_local_file)
{
switch_status_t status = SWITCH_STATUS_SUCCESS;
......@@ -290,6 +291,20 @@ static switch_status_t http_put(url_cache_t *cache, http_profile_t *profile, swi
if (httpRes == 200 || httpRes == 201 || httpRes == 204) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "%s saved to %s\n", filename, url);
if (cache_local_file) {
cached_url_t *u = NULL;
/* save to cache */
url_cache_lock(cache, session);
u = cached_url_create(cache, url, filename);
u->size = file_info.st_size;
u->status = CACHED_URL_AVAILABLE;
if (url_cache_add(cache, session, u) != SWITCH_STATUS_SUCCESS) {
/* This error should never happen */
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_CRIT, "Failed to add URL to cache!\n");
cached_url_destroy(u, cache->pool);
}
url_cache_unlock(cache, session);
}
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Received HTTP error %ld trying to save %s to %s\n", httpRes, filename, url);
status = SWITCH_STATUS_GENERR;
......@@ -547,7 +562,7 @@ static char *url_cache_get(url_cache_t *cache, http_profile_t *profile, switch_c
/* Set up URL entry and add to map to prevent simultaneous downloads */
cache->misses++;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "Cache MISS: size = %zu (%zu MB), hit ratio = %d/%d\n", cache->queue.size, cache->size / 1000000, cache->hits, cache->hits + cache->misses);
u = cached_url_create(cache, url);
u = cached_url_create(cache, url, NULL);
if (url_cache_add(cache, session, u) != SWITCH_STATUS_SUCCESS) {
/* This error should never happen */
url_cache_unlock(cache, session);
......@@ -734,52 +749,81 @@ static void url_cache_http_profile_add(url_cache_t *cache, const char *name, con
}
/**
* Create a cached URL entry
* @param cache the cache
* @param url the URL to cache
* @return the cached URL
* Find file extension at end of URL.
* @return file extension or NULL if it doesn't exist
*/
static cached_url_t *cached_url_create(url_cache_t *cache, const char *url)
static const char *find_extension(const char *url)
{
switch_uuid_t uuid;
char uuid_str[SWITCH_UUID_FORMATTED_LENGTH + 1] = { 0 };
char *filename = NULL;
char uuid_dir[3] = { 0 };
char *dirname = NULL;
cached_url_t *u = NULL;
const char *file_extension = "";
const char *ext = NULL;
const char *ext;
if (zstr(url)) {
return NULL;
/* find extension on the end of URL */
for (ext = &url[strlen(url) - 1]; ext != url; ext--) {
if (*ext == '/' || *ext == '\\') {
break;
}
if (*ext == '.') {
/* found it */
return ++ext;
}
}
return NULL;
}
switch_zmalloc(u, sizeof(cached_url_t));
/**
* Create a cached URL filename.
* @param cache the cache
* @param extension the filename extension
* @return the cached URL filename. Free when done.
*/
static char *cached_url_filename_create(url_cache_t *cache, const char *extension)
{
char *filename;
char *dirname;
char uuid_dir[3] = { 0 };
switch_uuid_t uuid;
char uuid_str[SWITCH_UUID_FORMATTED_LENGTH + 1] = { 0 };
/* filename is constructed from UUID and is stored in cache dir (first 2 characters of UUID) */
switch_uuid_get(&uuid);
switch_uuid_format(uuid_str, &uuid);
strncpy(uuid_dir, uuid_str, 2);
dirname = switch_mprintf("%s%s%s", cache->location, SWITCH_PATH_SEPARATOR, uuid_dir);
filename = &uuid_str[2];
/* create sub-directory if it doesn't exist */
switch_dir_make_recursive(dirname, SWITCH_DEFAULT_DIR_PERMS, cache->pool);
/* find extension on the end of URL */
for (ext = &url[strlen(url) - 1]; ext != url; ext--) {
if (*ext == '/' || *ext == '\\') {
break;
}
if (*ext == '.') {
/* found it */
file_extension = ext;
break;
if (!zstr(extension)) {
filename = switch_mprintf("%s%s%s.%s", dirname, SWITCH_PATH_SEPARATOR, &uuid_str[2], extension);
} else {
filename = switch_mprintf("%s%s%s", dirname, SWITCH_PATH_SEPARATOR, &uuid_str[2]);
}
free(dirname);
return filename;
}
/**
* Create a cached URL entry
* @param cache the cache
* @param url the URL to cache
* @param filename (optional) pre-defined local filename
* @return the cached URL
*/
static cached_url_t *cached_url_create(url_cache_t *cache, const char *url, const char *filename)
{
cached_url_t *u = NULL;
if (zstr(url)) {
return NULL;
}
switch_zmalloc(u, sizeof(cached_url_t));
/* intialize cached URL */
u->filename = switch_mprintf("%s%s%s%s", dirname, SWITCH_PATH_SEPARATOR, filename, file_extension);
if (zstr(filename)) {
u->filename = cached_url_filename_create(cache, find_extension(url));
} else {
u->filename = strdup(filename);
}
u->url = switch_safe_strdup(url);
u->size = 0;
u->used = 1;
......@@ -788,8 +832,6 @@ static cached_url_t *cached_url_create(url_cache_t *cache, const char *url)
u->download_time = switch_time_now();
u->max_age = cache->default_max_age;
switch_safe_free(dirname);
return u;
}
......@@ -1136,7 +1178,7 @@ SWITCH_STANDARD_API(http_cache_put)
profile = url_cache_http_profile_find(&gcache, switch_event_get_header(params, "profile"));
}
status = http_put(&gcache, profile, session, url, argv[1]);
status = http_put(&gcache, profile, session, url, argv[1], 0);
if (status == SWITCH_STATUS_SUCCESS) {
stream->write_function(stream, "+OK\n");
} else {
......@@ -1353,6 +1395,9 @@ done:
*/
struct http_context {
switch_file_handle_t fh;
http_profile_t *profile;
char *local_path;
const char *write_url;
};
/**
......@@ -1364,29 +1409,37 @@ struct http_context {
static switch_status_t http_cache_file_open(switch_file_handle_t *handle, const char *path)
{
switch_status_t status = SWITCH_STATUS_SUCCESS;
http_profile_t *profile = NULL;
struct http_context *context = switch_core_alloc(handle->memory_pool, sizeof(*context));
const char *local_path;
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
/* WRITE not supported */
return SWITCH_STATUS_FALSE;
}
int file_flags = SWITCH_FILE_DATA_SHORT;
if (handle->params) {
profile = url_cache_http_profile_find(&gcache, switch_event_get_header(handle->params, "profile"));
context->profile = url_cache_http_profile_find(&gcache, switch_event_get_header(handle->params, "profile"));
}
local_path = url_cache_get(&gcache, profile, NULL, path, 1, handle->memory_pool);
if (!local_path) {
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
/* WRITE = HTTP PUT */
file_flags |= SWITCH_FILE_FLAG_WRITE;
context->write_url = switch_core_strdup(handle->memory_pool, path);
/* allocate local file in cache */
context->local_path = cached_url_filename_create(&gcache, find_extension(context->write_url));
} else {
/* READ = HTTP GET */
file_flags |= SWITCH_FILE_FLAG_READ;
context->local_path = url_cache_get(&gcache, context->profile, NULL, path, 1, handle->memory_pool);
if (!context->local_path) {
return SWITCH_STATUS_FALSE;
}
}
if ((status = switch_core_file_open(&context->fh,
local_path,
context->local_path,
handle->channels,
handle->samplerate,
SWITCH_FILE_FLAG_READ | SWITCH_FILE_DATA_SHORT, NULL)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open HTTP cache file: %s, %s\n", local_path, path);
file_flags, NULL)) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to open HTTP cache file: %s, %s\n", context->local_path, path);
if (switch_test_flag(handle, SWITCH_FILE_FLAG_WRITE)) {
switch_safe_free(context->local_path);
}
return status;
}
......@@ -1444,6 +1497,19 @@ static switch_status_t http_file_read(switch_file_handle_t *handle, void *data,
return switch_core_file_read(&context->fh, data, len);
}
/**
* Write to HTTP file
* @param handle
* @param data
* @param len
* @return
*/
static switch_status_t http_file_write(switch_file_handle_t *handle, void *data, size_t *len)
{
struct http_context *context = (struct http_context *)handle->private_info;
return switch_core_file_write(&context->fh, data, len);
}
/**
* Close HTTP file
* @param handle
......@@ -1452,7 +1518,15 @@ static switch_status_t http_file_read(switch_file_handle_t *handle, void *data,
static switch_status_t http_file_close(switch_file_handle_t *handle)
{
struct http_context *context = (struct http_context *)handle->private_info;
return switch_core_file_close(&context->fh);
switch_status_t status = switch_core_file_close(&context->fh);
if (status == SWITCH_STATUS_SUCCESS && !zstr(context->write_url)) {
status = http_put(&gcache, context->profile, NULL, context->write_url, context->local_path, 1);
}
if (!zstr(context->write_url)) {
switch_safe_free(context->local_path);
}
return status;
}
static char *http_supported_formats[] = { "http", NULL };
......@@ -1501,6 +1575,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_http_cache_load)
file_interface->file_open = http_file_open;
file_interface->file_close = http_file_close;
file_interface->file_read = http_file_read;
file_interface->file_write = http_file_write;
file_interface = switch_loadable_module_create_interface(*module_interface, SWITCH_FILE_INTERFACE);
file_interface->interface_name = modname;
......@@ -1508,6 +1583,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_http_cache_load)
file_interface->file_open = https_file_open;
file_interface->file_close = http_file_close;
file_interface->file_read = http_file_read;
file_interface->file_write = http_file_write;
}
/* create the queue from configuration */
......
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