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smjs_load_uri: return if there is an external handler

Currently, using smjs_load_uri on javascript: URIs cause an assertion
failure in run_connection because smjs_load_uri uses
get_protocol_handler to find the handler and asserts that the returned
handler is not NULL, but get_protocol_handler returns NULL for
javascript: URIs.

In smjs_load_uri, if the given URI has a protocol for which some
external handler is defined, immediately return JS_FALSE because
smjs_load_uri implements an asynchronous operation, and we cannot
reasonably carry out the operation and callback with an external
handler.
This commit is contained in:
Miciah Dashiel Butler Masters 2011-11-13 03:22:09 +00:00
parent bdeace4811
commit da209c6b6f

View File

@ -9,6 +9,7 @@
#include "ecmascript/spidermonkey-shared.h"
#include "network/connection.h"
#include "protocol/uri.h"
#include "protocol/protocol.h"
#include "scripting/smjs/core.h"
#include "scripting/smjs/cache_object.h"
#include "scripting/smjs/elinks_object.h"
@ -70,6 +71,7 @@ smjs_load_uri(JSContext *ctx, uintN argc, jsval *rval)
struct smjs_load_uri_hop *hop;
struct download *download;
JSString *jsstr;
protocol_external_handler_T *external_handler;
unsigned char *uri_string;
struct uri *uri;
@ -81,6 +83,14 @@ smjs_load_uri(JSContext *ctx, uintN argc, jsval *rval)
uri = get_uri(uri_string, 0);
if (!uri) return JS_FALSE;
external_handler = get_protocol_external_handler(NULL, uri);
if (external_handler) {
/* Because smjs_load_uri is carrying out an asynchronous
* operation, it is inappropriate to call an external
* handler here, so just return. */
return JS_FALSE;
}
download = mem_alloc(sizeof(*download));
if (!download) {
done_uri(uri);