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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/public/common/custom_handlers/protocol_handler_utils.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/blink/public/common/security/protocol_handler_security_level.h"
#include "url/gurl.h"
namespace blink {
TEST(ProtocolHandlerUtilTest, ValidCustomHandlerSyntax) {
struct {
const char* title;
std::string user_url;
} test_cases[]{
{
"Basic case",
"https://mydomain.com/path?=%s",
},
{
"Unknown scheme",
"scheme://mydomain.com/path?=%s",
},
{
"Not Secure Context",
"http://mydomain.com/path?=%s",
},
{
"Opaque Origin",
"data:/%s",
}};
for (const auto& test_case : test_cases) {
SCOPED_TRACE(test_case.title);
GURL full_url(test_case.user_url);
URLSyntaxErrorCode code =
IsValidCustomHandlerURLSyntax(full_url, test_case.user_url);
EXPECT_EQ(code, URLSyntaxErrorCode::kNoError);
};
}
TEST(ProtocolHandlerUtilTest, InvalidCustomHandlerSyntax) {
struct {
const char* title;
std::string user_url;
URLSyntaxErrorCode expected_error;
} test_cases[]{
// Invalid url
{
"Empty url",
"",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://%s.com",
"http://%s.com",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://%s.example.com",
"http://%s.example.com",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://[v8.:::]//url=%s",
"http://[v8.:::]//url=%s",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"https://test:test/",
"https://test:test/",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"file://%s",
"file://%s",
URLSyntaxErrorCode::kInvalidUrl,
},
// Missing token
{
"http://example.com/%",
"http://example.com/%",
URLSyntaxErrorCode::kMissingToken,
},
{
"http://example.com/%a",
"http://example.com/%a",
URLSyntaxErrorCode::kMissingToken,
},
{
"http://example.com",
"http://example.com",
URLSyntaxErrorCode::kMissingToken,
},
};
for (const auto& test_case : test_cases) {
SCOPED_TRACE(test_case.title);
GURL full_url(test_case.user_url);
URLSyntaxErrorCode code =
IsValidCustomHandlerURLSyntax(full_url, test_case.user_url);
EXPECT_EQ(code, test_case.expected_error);
};
}
#if (BUILDFLAG(IS_WIN) && !defined(NDEBUG))
// Flaky on Windows
#define MAYBE_InvalidURL DISABLED_InvalidURL
#else
#define MAYBE_InvalidURL InvalidURL
#endif
TEST(ProtocolHandlerUtilTest, MAYBE_InvalidURL) {
struct {
const char* title;
std::string user_url;
URLSyntaxErrorCode expected_error;
} test_cases[]{
{
"Empty url",
"",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://%s.com",
"http://%s.com",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://%s.example.com",
"http://%s.example.com",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"http://[v8.:::]//url=%s",
"http://[v8.:::]//url=%s",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"https://test:test/",
"https://test:test/",
URLSyntaxErrorCode::kInvalidUrl,
},
{
"file://%s",
"file://%s",
URLSyntaxErrorCode::kInvalidUrl,
},
};
for (const auto& test_case : test_cases) {
SCOPED_TRACE(test_case.title);
GURL full_url(test_case.user_url);
EXPECT_FALSE(full_url.is_valid());
URLSyntaxErrorCode code = IsValidCustomHandlerURLSyntax(full_url);
EXPECT_EQ(code, test_case.expected_error);
};
}
TEST(ProtocolHandlerUtilTest, ValidCustomHandlerSchemeSafeList) {
static constexpr const char* const kProtocolSafelist[] = {
"bitcoin", "cabal", "dat", "did", "doi", "dweb", "ethereum",
"geo", "hyper", "im", "ipfs", "ipns", "irc", "ircs",
"magnet", "mailto", "matrix", "mms", "news", "nntp", "openpgp4fpr",
"sip", "sms", "smsto", "ssb", "ssh", "tel", "urn",
"webcal", "wtai", "xmpp"};
for (const auto* scheme : kProtocolSafelist) {
SCOPED_TRACE(std::string("Testing safelist: ") + scheme);
bool has_prefix = true;
EXPECT_TRUE(IsValidCustomHandlerScheme(
scheme, ProtocolHandlerSecurityLevel::kStrict, &has_prefix));
EXPECT_FALSE(has_prefix);
};
}
TEST(ProtocolHandlerUtilTest, CustomHandlerSchemePrefixed) {
struct {
const char* title;
std::string scheme;
ProtocolHandlerSecurityLevel security_level;
bool is_valid;
bool has_prefix;
} test_cases[]{
// Valid cases
{
"Basic 'web+' case",
"web+scheme",
ProtocolHandlerSecurityLevel::kStrict,
true,
true,
},
{
"Basic 'ext+' case",
"ext+scheme",
ProtocolHandlerSecurityLevel::kExtensionFeatures,
true,
true,
},
// Prefix ext+ not allowed by the security level
{
"Prefixed scheme not allowed with kStrict",
"ext+scheme",
ProtocolHandlerSecurityLevel::kStrict,
false,
false,
},
{
"Prefixed scheme not allowed with kSameOrigin",
"ext+search",
ProtocolHandlerSecurityLevel::kSameOrigin,
false,
false,
},
{
"Prefixed scheme not allowed with kUntrustedOrigin",
"ext+protocol",
ProtocolHandlerSecurityLevel::kUntrustedOrigins,
false,
},
{
"Prefix ext+ must have a non-empty sufix",
"ext+",
ProtocolHandlerSecurityLevel::kExtensionFeatures,
false,
true,
},
{
"Prefix web+ must have a non-empty sufix",
"web+",
ProtocolHandlerSecurityLevel::kExtensionFeatures,
false,
true,
},
};
for (const auto& test_case : test_cases) {
SCOPED_TRACE(test_case.title);
bool has_prefix = false;
bool is_valid = IsValidCustomHandlerScheme(
test_case.scheme, test_case.security_level, &has_prefix);
EXPECT_EQ(is_valid, test_case.is_valid);
EXPECT_EQ(has_prefix, test_case.has_prefix);
};
}
TEST(ProtocolHandlerUtilTest, CustomHandlerFTPIncludedInSafelist) {
// The kSafelistFTPToRegisterProtocolHandler feature is enabled by default.
static constexpr const char* const kProtocolSafelist[] = {"ftp", "ftps",
"sftp"};
for (const auto* scheme : kProtocolSafelist) {
SCOPED_TRACE(std::string("Testing FTP schemes are included in safelist: ") +
scheme);
EXPECT_TRUE(IsValidCustomHandlerScheme(
scheme, ProtocolHandlerSecurityLevel::kStrict));
};
}
TEST(ProtocolHandlerUtilTest, CustomHandlerPaytoNotIncludedInSafelist) {
// The kSafelistPaytoToRegisterProtocolHandler feature is disabled by default.
SCOPED_TRACE("Testing 'payto' is not included in safelist.");
EXPECT_FALSE(IsValidCustomHandlerScheme(
"payto", ProtocolHandlerSecurityLevel::kStrict));
}
TEST(ProtocolHandlerUtilTest, CustomHandlerURLIsAllowed) {
struct {
const char* title;
std::string url;
ProtocolHandlerSecurityLevel security_level;
bool is_allowed;
} test_cases[]{
// Allowed URLs
{
"HTTPS scheme and Trusworthy url",
"https://example.com",
ProtocolHandlerSecurityLevel::kStrict,
true,
},
{
"File scheme with SameOrigin security level",
"file://path",
ProtocolHandlerSecurityLevel::kSameOrigin,
true,
},
{
"Data scheme with SameOrigin security level",
"data://path",
ProtocolHandlerSecurityLevel::kSameOrigin,
true,
},
// Not allowed URLs
{
"HTTP schemes doesn't provide a Trusworthy url",
"http://example.com",
ProtocolHandlerSecurityLevel::kStrict,
false,
},
{
"File scheme with Strict securoty level",
"file://path",
ProtocolHandlerSecurityLevel::kStrict,
false,
},
{
"Data scheme with Strict securoty level",
"data://path",
ProtocolHandlerSecurityLevel::kStrict,
false,
},
};
for (const auto& test_case : test_cases) {
SCOPED_TRACE(test_case.title);
GURL url(test_case.url);
bool is_allowed = IsAllowedCustomHandlerURL(url, test_case.security_level);
EXPECT_EQ(is_allowed, test_case.is_allowed);
};
}
} // namespace blink
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