1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "ppapi/shared_impl/ppb_url_util_shared.h"
6
7 #include "ppapi/shared_impl/ppapi_globals.h"
8 #include "ppapi/shared_impl/proxy_lock.h"
9 #include "ppapi/shared_impl/var.h"
10 #include "ppapi/shared_impl/var_tracker.h"
11 #include "url/gurl.h"
12
13 namespace ppapi {
14
15 namespace {
16
ConvertComponent(const url::Component & input,PP_URLComponent_Dev * output)17 void ConvertComponent(const url::Component& input,
18 PP_URLComponent_Dev* output) {
19 output->begin = input.begin;
20 output->len = input.len;
21 }
22
23 // Converts components from a GoogleUrl parsed to a PPAPI parsed structure.
24 // Output can be NULL to specify "do nothing." This rule is followed by all
25 // the url util functions, so we implement it once here.
26 //
27 // Output can be NULL to specify "do nothing." This rule is followed by all the
28 // url util functions, so we implement it once here.
ConvertComponents(const url::Parsed & input,PP_URLComponents_Dev * output)29 void ConvertComponents(const url::Parsed& input, PP_URLComponents_Dev* output) {
30 if (!output)
31 return;
32
33 ConvertComponent(input.scheme, &output->scheme);
34 ConvertComponent(input.username, &output->username);
35 ConvertComponent(input.password, &output->password);
36 ConvertComponent(input.host, &output->host);
37 ConvertComponent(input.port, &output->port);
38 ConvertComponent(input.path, &output->path);
39 ConvertComponent(input.query, &output->query);
40 ConvertComponent(input.ref, &output->ref);
41 }
42
43 } // namespace
44
45 // static
Canonicalize(PP_Var url,PP_URLComponents_Dev * components)46 PP_Var PPB_URLUtil_Shared::Canonicalize(PP_Var url,
47 PP_URLComponents_Dev* components) {
48 ProxyAutoLock lock;
49 StringVar* url_string = StringVar::FromPPVar(url);
50 if (!url_string)
51 return PP_MakeNull();
52 return GenerateURLReturn(GURL(url_string->value()), components);
53 }
54
55 // static
ResolveRelativeToURL(PP_Var base_url,PP_Var relative,PP_URLComponents_Dev * components)56 PP_Var PPB_URLUtil_Shared::ResolveRelativeToURL(
57 PP_Var base_url,
58 PP_Var relative,
59 PP_URLComponents_Dev* components) {
60 ProxyAutoLock lock;
61 StringVar* base_url_string = StringVar::FromPPVar(base_url);
62 StringVar* relative_string = StringVar::FromPPVar(relative);
63 if (!base_url_string || !relative_string)
64 return PP_MakeNull();
65
66 GURL base_gurl(base_url_string->value());
67 if (!base_gurl.is_valid())
68 return PP_MakeNull();
69 return GenerateURLReturn(base_gurl.Resolve(relative_string->value()),
70 components);
71 }
72
73 // static
IsSameSecurityOrigin(PP_Var url_a,PP_Var url_b)74 PP_Bool PPB_URLUtil_Shared::IsSameSecurityOrigin(PP_Var url_a, PP_Var url_b) {
75 ProxyAutoLock lock;
76 StringVar* url_a_string = StringVar::FromPPVar(url_a);
77 StringVar* url_b_string = StringVar::FromPPVar(url_b);
78 if (!url_a_string || !url_b_string)
79 return PP_FALSE;
80
81 GURL gurl_a(url_a_string->value());
82 GURL gurl_b(url_b_string->value());
83 if (!gurl_a.is_valid() || !gurl_b.is_valid())
84 return PP_FALSE;
85
86 return gurl_a.GetOrigin() == gurl_b.GetOrigin() ? PP_TRUE : PP_FALSE;
87 }
88
89 // Used for returning the given GURL from a PPAPI function, with an optional
90 // out param indicating the components.
GenerateURLReturn(const GURL & url,PP_URLComponents_Dev * components)91 PP_Var PPB_URLUtil_Shared::GenerateURLReturn(const GURL& url,
92 PP_URLComponents_Dev* components) {
93 if (!url.is_valid())
94 return PP_MakeNull();
95 ConvertComponents(url.parsed_for_possibly_invalid_spec(), components);
96 return StringVar::StringToPPVar(url.possibly_invalid_spec());
97 }
98
ConvertComponentsAndReturnURL(const PP_Var & url,PP_URLComponents_Dev * components)99 PP_Var PPB_URLUtil_Shared::ConvertComponentsAndReturnURL(
100 const PP_Var& url,
101 PP_URLComponents_Dev* components) {
102 if (!components)
103 return url; // Common case - plugin doesn't care about parsing.
104
105 StringVar* url_string = StringVar::FromPPVar(url);
106 if (!url_string)
107 return url;
108
109 PP_Var result = Canonicalize(url, components);
110 PpapiGlobals::Get()->GetVarTracker()->ReleaseVar(url);
111 return result;
112 }
113
114 } // namespace ppapi
115