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// Copyright (c) 2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "webkit/glue/plugins/pepper_url_util.h"
#include "googleurl/src/gurl.h"
#include "third_party/ppapi/c/dev/ppb_url_util_dev.h"
#include "third_party/WebKit/WebKit/chromium/public/WebDocument.h"
#include "third_party/WebKit/WebKit/chromium/public/WebElement.h"
#include "third_party/WebKit/WebKit/chromium/public/WebFrame.h"
#include "third_party/WebKit/WebKit/chromium/public/WebNode.h"
#include "third_party/WebKit/WebKit/chromium/public/WebPluginContainer.h"
#include "third_party/WebKit/WebKit/chromium/public/WebSecurityOrigin.h"
#include "third_party/WebKit/WebKit/chromium/public/WebURL.h"
#include "webkit/glue/plugins/pepper_plugin_instance.h"
#include "webkit/glue/plugins/pepper_string.h"
#include "webkit/glue/plugins/pepper_var.h"
namespace pepper {
namespace {
void ConvertComponent(const url_parse::Component& input,
PP_UrlComponent_Dev* output) {
output->begin = input.begin;
output->len = input.len;
}
// Output can be NULL to specify "do nothing." This rule is followed by all the
// url util functions, so we implement it once here.
void ConvertComponents(const url_parse::Parsed& input,
PP_UrlComponents_Dev* output) {
if (!output)
return;
ConvertComponent(input.scheme, &output->scheme);
ConvertComponent(input.username, &output->username);
ConvertComponent(input.password, &output->password);
ConvertComponent(input.host, &output->host);
ConvertComponent(input.port, &output->port);
ConvertComponent(input.path, &output->path);
ConvertComponent(input.query, &output->query);
ConvertComponent(input.ref, &output->ref);
}
// Used for returning the given GURL from a PPAPI function, with an optional
// out param indicating the components.
PP_Var GenerateUrlReturn(PluginModule* module, const GURL& url,
PP_UrlComponents_Dev* components) {
if (!url.is_valid())
return PP_MakeNull();
ConvertComponents(url.parsed_for_possibly_invalid_spec(), components);
return StringVar::StringToPPVar(module, url.possibly_invalid_spec());
}
// Sets |*security_origin| to be the WebKit security origin associated with the
// document containing the given plugin instance. On success, returns true. If
// the instance is invalid, returns false and |*security_origin| will be
// unchanged.
bool SecurityOriginForInstance(PP_Instance instance_id,
WebKit::WebSecurityOrigin* security_origin) {
PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
if (!instance)
return false;
WebKit::WebElement plugin_element = instance->container()->element();
WebKit::WebFrame* plugin_frame = plugin_element.document().frame();
if (!plugin_frame)
return false;
*security_origin = plugin_frame->securityOrigin();
return true;
}
PP_Var Canonicalize(PP_Var url, PP_UrlComponents_Dev* components) {
scoped_refptr<StringVar> url_string(StringVar::FromPPVar(url));
if (!url_string)
return PP_MakeNull();
return GenerateUrlReturn(url_string->module(),
GURL(url_string->value()), components);
}
PP_Var ResolveRelativeToUrl(PP_Var base_url,
PP_Var relative,
PP_UrlComponents_Dev* components) {
scoped_refptr<StringVar> base_url_string(StringVar::FromPPVar(base_url));
scoped_refptr<StringVar> relative_string(StringVar::FromPPVar(relative));
if (!base_url_string || !relative_string)
return PP_MakeNull();
GURL base_gurl(base_url_string->value());
if (!base_gurl.is_valid())
return PP_MakeNull();
return GenerateUrlReturn(base_url_string->module(),
base_gurl.Resolve(relative_string->value()),
components);
}
PP_Var ResolveRelativeToDocument(PP_Instance instance_id,
PP_Var relative,
PP_UrlComponents_Dev* components) {
PluginInstance* instance = ResourceTracker::Get()->GetInstance(instance_id);
if (!instance)
return PP_MakeNull();
scoped_refptr<StringVar> relative_string(StringVar::FromPPVar(relative));
if (!relative_string)
return PP_MakeNull();
WebKit::WebElement plugin_element = instance->container()->element();
GURL document_url = plugin_element.document().baseURL();
return GenerateUrlReturn(instance->module(),
document_url.Resolve(relative_string->value()),
components);
}
bool IsSameSecurityOrigin(PP_Var url_a, PP_Var url_b) {
scoped_refptr<StringVar> url_a_string(StringVar::FromPPVar(url_a));
scoped_refptr<StringVar> url_b_string(StringVar::FromPPVar(url_b));
if (!url_a_string || !url_b_string)
return false;
GURL gurl_a(url_a_string->value());
GURL gurl_b(url_b_string->value());
if (!gurl_a.is_valid() || !gurl_b.is_valid())
return false;
return gurl_a.GetOrigin() == gurl_b.GetOrigin();
}
bool DocumentCanRequest(PP_Instance instance, PP_Var url) {
scoped_refptr<StringVar> url_string(StringVar::FromPPVar(url));
if (!url_string)
return false;
WebKit::WebSecurityOrigin security_origin;
if (!SecurityOriginForInstance(instance, &security_origin))
return false;
GURL gurl(url_string->value());
if (!gurl.is_valid())
return false;
return security_origin.canRequest(gurl);
}
bool DocumentCanAccessDocument(PP_Instance active, PP_Instance target) {
WebKit::WebSecurityOrigin active_origin;
if (!SecurityOriginForInstance(active, &active_origin))
return false;
WebKit::WebSecurityOrigin target_origin;
if (!SecurityOriginForInstance(active, &target_origin))
return false;
return active_origin.canAccess(target_origin);
}
} // namespace
const PPB_UrlUtil_Dev ppb_url_util = {
&Canonicalize,
&ResolveRelativeToUrl,
&ResolveRelativeToDocument,
&IsSameSecurityOrigin,
&DocumentCanRequest,
&DocumentCanAccessDocument
};
// static
const PPB_UrlUtil_Dev* UrlUtil::GetInterface() {
return &ppb_url_util;
}
} // namespace pepper
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