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csp_validator_unittest.cc
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// Copyright 2013 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 <stddef.h>
#include "base/strings/string_split.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "extensions/common/csp_validator.h"
#include "extensions/common/error_utils.h"
#include "extensions/common/install_warning.h"
#include "extensions/common/manifest_constants.h"
#include "testing/gtest/include/gtest/gtest.h"
using extensions::csp_validator::ContentSecurityPolicyIsLegal;
using extensions::csp_validator::GetEffectiveSandoxedPageCSP;
using extensions::csp_validator::SanitizeContentSecurityPolicy;
using extensions::csp_validator::ContentSecurityPolicyIsSandboxed;
using extensions::csp_validator::OPTIONS_NONE;
using extensions::csp_validator::OPTIONS_ALLOW_UNSAFE_EVAL;
using extensions::csp_validator::OPTIONS_ALLOW_INSECURE_OBJECT_SRC;
using extensions::ErrorUtils;
using extensions::InstallWarning;
using extensions::Manifest;
namespace {
std::string InsecureValueWarning(const std::string& directive,
const std::string& value) {
return ErrorUtils::FormatErrorMessage(
extensions::manifest_errors::kInvalidCSPInsecureValue, value, directive);
}
std::string MissingSecureSrcWarning(const std::string& directive) {
return ErrorUtils::FormatErrorMessage(
extensions::manifest_errors::kInvalidCSPMissingSecureSrc, directive);
}
bool CSPEquals(const std::string& csp1, const std::string& csp2) {
std::vector<std::string> csp1_parts = base::SplitString(
csp1, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
std::sort(csp1_parts.begin(), csp1_parts.end());
std::vector<std::string> csp2_parts = base::SplitString(
csp2, ";", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
std::sort(csp2_parts.begin(), csp2_parts.end());
return csp1_parts == csp2_parts;
}
struct SanitizedCSPResult {
std::string csp;
std::vector<InstallWarning> warnings;
};
SanitizedCSPResult SanitizeCSP(const std::string& policy, int options) {
SanitizedCSPResult result;
result.csp = SanitizeContentSecurityPolicy(policy, options, &result.warnings);
return result;
}
SanitizedCSPResult SanitizeSandboxPageCSP(const std::string& policy) {
SanitizedCSPResult result;
result.csp = GetEffectiveSandoxedPageCSP(policy, &result.warnings);
return result;
}
testing::AssertionResult CheckCSP(
const SanitizedCSPResult& actual,
const std::string& expected_csp,
const std::vector<std::string>& expected_warnings) {
if (!CSPEquals(expected_csp, actual.csp)) {
return testing::AssertionFailure()
<< "SanitizeContentSecurityPolicy returned an unexpected CSP.\n"
<< "Expected CSP: " << expected_csp << "\n"
<< " Actual CSP: " << actual.csp;
}
if (expected_warnings.size() != actual.warnings.size()) {
testing::Message msg;
msg << "Expected " << expected_warnings.size() << " warnings, but got "
<< actual.warnings.size();
for (size_t i = 0; i < actual.warnings.size(); ++i)
msg << "\nWarning " << i << " " << actual.warnings[i].message;
return testing::AssertionFailure() << msg;
}
for (size_t i = 0; i < expected_warnings.size(); ++i) {
if (expected_warnings[i] != actual.warnings[i].message)
return testing::AssertionFailure()
<< "Unexpected warning from SanitizeContentSecurityPolicy.\n"
<< "Expected warning[" << i << "]: " << expected_warnings[i]
<< " Actual warning[" << i << "]: " << actual.warnings[i].message;
}
return testing::AssertionSuccess();
}
testing::AssertionResult CheckCSP(const SanitizedCSPResult& actual) {
return CheckCSP(actual, actual.csp, std::vector<std::string>());
}
testing::AssertionResult CheckCSP(const SanitizedCSPResult& actual,
const std::string& expected_csp) {
std::vector<std::string> expected_warnings;
return CheckCSP(actual, expected_csp, expected_warnings);
}
testing::AssertionResult CheckCSP(const SanitizedCSPResult& actual,
const std::string& expected_csp,
const std::string& warning1) {
std::vector<std::string> expected_warnings(1, warning1);
return CheckCSP(actual, expected_csp, expected_warnings);
}
testing::AssertionResult CheckCSP(const SanitizedCSPResult& actual,
const std::string& expected_csp,
const std::string& warning1,
const std::string& warning2) {
std::vector<std::string> expected_warnings(1, warning1);
expected_warnings.push_back(warning2);
return CheckCSP(actual, expected_csp, expected_warnings);
}
testing::AssertionResult CheckCSP(const SanitizedCSPResult& actual,
const std::string& expected_csp,
const std::string& warning1,
const std::string& warning2,
const std::string& warning3) {
std::vector<std::string> expected_warnings(1, warning1);
expected_warnings.push_back(warning2);
expected_warnings.push_back(warning3);
return CheckCSP(actual, expected_csp, expected_warnings);
}
}; // namespace
TEST(ExtensionCSPValidator, IsLegal) {
EXPECT_TRUE(ContentSecurityPolicyIsLegal("foo"));
EXPECT_TRUE(ContentSecurityPolicyIsLegal(
"default-src 'self'; script-src http://www.google.com"));
EXPECT_FALSE(ContentSecurityPolicyIsLegal(
"default-src 'self';\nscript-src http://www.google.com"));
EXPECT_FALSE(ContentSecurityPolicyIsLegal(
"default-src 'self';\rscript-src http://www.google.com"));
EXPECT_FALSE(ContentSecurityPolicyIsLegal(
"default-src 'self';,script-src http://www.google.com"));
}
TEST(ExtensionCSPValidator, IsSecure) {
EXPECT_TRUE(CheckCSP(SanitizeCSP(std::string(), OPTIONS_ALLOW_UNSAFE_EVAL),
"script-src 'self'; object-src 'self';",
MissingSecureSrcWarning("script-src"),
MissingSecureSrcWarning("object-src")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"img-src https://google.com", OPTIONS_ALLOW_UNSAFE_EVAL),
"img-src https://google.com; script-src 'self'; object-src 'self';",
MissingSecureSrcWarning("script-src"),
MissingSecureSrcWarning("object-src")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src a b", OPTIONS_ALLOW_UNSAFE_EVAL),
"script-src; object-src 'self';",
InsecureValueWarning("script-src", "a"),
InsecureValueWarning("script-src", "b"),
MissingSecureSrcWarning("object-src")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src *", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src;",
InsecureValueWarning("default-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self';", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'none';", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' ftp://google.com", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "ftp://google.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://google.com;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src *; default-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src; default-src 'self';",
InsecureValueWarning("default-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self'; default-src *;", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self'; default-src;"));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self'; default-src *; script-src *; script-src 'self'",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self'; default-src; script-src; script-src 'self';",
InsecureValueWarning("script-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self'; default-src *; script-src 'self'; script-src *;",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self'; default-src; script-src 'self'; script-src;"));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src *; script-src 'self'", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src; script-src 'self';",
InsecureValueWarning("default-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src *; script-src 'self'; img-src 'self'",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src; script-src 'self'; img-src 'self';",
InsecureValueWarning("default-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src *; script-src 'self'; object-src 'self';",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src; script-src 'self'; object-src 'self';"));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src 'self';", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'unsafe-eval';", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'unsafe-eval'", OPTIONS_NONE),
"default-src;",
InsecureValueWarning("default-src", "'unsafe-eval'")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'unsafe-inline'", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src;",
InsecureValueWarning("default-src", "'unsafe-inline'")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'unsafe-inline' 'none'", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'none';",
InsecureValueWarning("default-src", "'unsafe-inline'")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://google.com", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "http://google.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://google.com;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome://resources;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome-extension://aabbcc;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome-extension-resource://aabbcc;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https:", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https:")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http:", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "http:")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' google.com", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "google.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' *", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' *:*", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "*:*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' *:*/", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "*:*/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' *:*/path", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "*:*/path")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*:*", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*:*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*:*/", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*:*/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*:*/path", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*:*/path")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.com", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.*.google.com/", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*.*.google.com/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.*.google.com:*/", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://*.*.google.com:*/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://www.*.google.com/", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://www.*.google.com/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://www.*.google.com:*/",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "https://www.*.google.com:*/")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome://*", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "chrome://*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome-extension://*", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "chrome-extension://*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' chrome-extension://", OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "chrome-extension://")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.google.com;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.google.com:1;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.google.com:*;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.google.com:1/;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.google.com:*/;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://127.0.0.1;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://localhost;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP("default-src 'self' http://lOcAlHoSt;",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self' http://lOcAlHoSt;"));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://127.0.0.1:9999;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://localhost:8888;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://127.0.0.1.example.com",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "http://127.0.0.1.example.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' http://localhost.example.com",
OPTIONS_ALLOW_UNSAFE_EVAL),
"default-src 'self';",
InsecureValueWarning("default-src", "http://localhost.example.com")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' blob:;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' blob:http://example.com/XXX",
OPTIONS_ALLOW_UNSAFE_EVAL), "default-src 'self';",
InsecureValueWarning("default-src", "blob:http://example.com/XXX")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' filesystem:;", OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' filesystem:http://example.com/XX",
OPTIONS_ALLOW_UNSAFE_EVAL), "default-src 'self';",
InsecureValueWarning("default-src", "filesystem:http://example.com/XX")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://*.googleapis.com;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src 'self' https://x.googleapis.com;",
OPTIONS_ALLOW_UNSAFE_EVAL)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src *", OPTIONS_NONE),
"script-src 'self'; object-src;",
InsecureValueWarning("object-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src *", OPTIONS_ALLOW_INSECURE_OBJECT_SRC),
"script-src 'self'; object-src;",
InsecureValueWarning("object-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src *; plugin-types application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src *; "
"plugin-types application/x-shockwave-flash",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC),
"script-src 'self'; object-src; "
"plugin-types application/x-shockwave-flash;",
InsecureValueWarning("object-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src *; "
"plugin-types application/x-shockwave-flash application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC),
"script-src 'self'; object-src; "
"plugin-types application/x-shockwave-flash application/pdf;",
InsecureValueWarning("object-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src http://www.example.com; "
"plugin-types application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"object-src http://www.example.com blob:; script-src 'self'; "
"plugin-types application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src 'self'; object-src http://*.example.com; "
"plugin-types application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC)));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"script-src *; object-src *; plugin-types application/pdf;",
OPTIONS_ALLOW_INSECURE_OBJECT_SRC),
"script-src; object-src *; plugin-types application/pdf;",
InsecureValueWarning("script-src", "*")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src; script-src"
" 'sha256-hndjYvzUzy2Ykuad81Cwsl1FOXX/qYs/aDVyUyNZwBw='"
" 'sha384-bSVm1i3sjPBRM4TwZtYTDjk9JxZMExYHWbFmP1SxDhJH4ue0Wu9OPOkY5hcqRcS"
"t'"
" 'sha512-440MmBLtj9Kp5Bqloogn9BqGDylY8vFsv5/zXL1zH2fJVssCoskRig4gyM+9Kqw"
"vCSapSz5CVoUGHQcxv43UQg==';",
OPTIONS_NONE)));
// Reject non-standard algorithms, even if they are still supported by Blink.
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src; script-src 'sha1-eYyYGmKWdhpUewohaXk9o8IaLSw=';",
OPTIONS_NONE), "default-src; script-src;",
InsecureValueWarning("script-src",
"'sha1-eYyYGmKWdhpUewohaXk9o8IaLSw='")));
EXPECT_TRUE(CheckCSP(SanitizeCSP(
"default-src; script-src 'sha256-hndjYvzUzy2Ykuad81Cwsl1FOXX/qYs/aDVyUyNZ"
"wBw= sha256-qznLcsROx4GACP2dm0UCKCzCG+HiZ1guq6ZZDob/Tng=';",
OPTIONS_NONE), "default-src; script-src;",
InsecureValueWarning(
"script-src", "'sha256-hndjYvzUzy2Ykuad81Cwsl1FOXX/qYs/aDVyUyNZwBw="),
InsecureValueWarning(
"script-src",
"sha256-qznLcsROx4GACP2dm0UCKCzCG+HiZ1guq6ZZDob/Tng='")));
}
TEST(ExtensionCSPValidator, IsSandboxed) {
EXPECT_FALSE(ContentSecurityPolicyIsSandboxed(std::string(),
Manifest::TYPE_EXTENSION));
EXPECT_FALSE(ContentSecurityPolicyIsSandboxed("img-src https://google.com",
Manifest::TYPE_EXTENSION));
// Sandbox directive is required.
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox", Manifest::TYPE_EXTENSION));
// Additional sandbox tokens are OK.
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-scripts", Manifest::TYPE_EXTENSION));
// Except for allow-same-origin.
EXPECT_FALSE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-same-origin", Manifest::TYPE_EXTENSION));
// Additional directives are OK.
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox; img-src https://google.com", Manifest::TYPE_EXTENSION));
// Extensions allow navigation, platform apps don't.
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-top-navigation", Manifest::TYPE_EXTENSION));
EXPECT_FALSE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-top-navigation", Manifest::TYPE_PLATFORM_APP));
// Popups are OK.
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-popups", Manifest::TYPE_EXTENSION));
EXPECT_TRUE(ContentSecurityPolicyIsSandboxed(
"sandbox allow-popups", Manifest::TYPE_PLATFORM_APP));
}
TEST(ExtensionCSPValidator, EffectiveSandboxedPageCSP) {
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP(""),
"child-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval';"));
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP("child-src http://www.google.com"),
"child-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval';",
InsecureValueWarning("child-src", "http://www.google.com")));
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP("child-src *"),
"child-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval';",
InsecureValueWarning("child-src", "*")));
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP("child-src 'none'"),
"child-src 'none'; script-src 'self' 'unsafe-inline' 'unsafe-eval';"));
// Directive values of 'none' and 'self' are preserved.
EXPECT_TRUE(
CheckCSP(SanitizeSandboxPageCSP("script-src 'none'; frame-src 'self';"),
"frame-src 'self'; script-src 'none';"));
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP(
"script-src 'none'; frame-src 'self' http://www.google.com;"),
"frame-src 'self'; script-src 'none';",
InsecureValueWarning("frame-src", "http://www.google.com")));
// script-src will add 'unsafe-inline' and 'unsafe-eval' only if script-src is
// not specified.
EXPECT_TRUE(CheckCSP(SanitizeSandboxPageCSP("script-src 'self'"),
"script-src 'self'; child-src 'self'"));
EXPECT_TRUE(
CheckCSP(SanitizeSandboxPageCSP(
"script-src 'self' 'unsafe-inline'; child-src 'self';"),
"child-src 'self'; script-src 'self' 'unsafe-inline';"));
EXPECT_TRUE(
CheckCSP(SanitizeSandboxPageCSP(
"script-src 'self' 'unsafe-eval'; child-src 'self';"),
"child-src 'self'; script-src 'self' 'unsafe-eval';"));
// child-src and frame-src are handled correctly.
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP(
"script-src 'none'; frame-src 'self' http://www.google.com;"),
"frame-src 'self'; script-src 'none';",
InsecureValueWarning("frame-src", "http://www.google.com")));
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP(
"script-src 'none'; child-src 'self' http://www.google.com;"),
"child-src 'self'; script-src 'none';",
InsecureValueWarning("child-src", "http://www.google.com")));
// Multiple insecure values.
EXPECT_TRUE(CheckCSP(
SanitizeSandboxPageCSP(
"script-src 'none'; child-src http://bar.com 'self' http://foo.com;"),
"child-src 'self'; script-src 'none';",
InsecureValueWarning("child-src", "http://bar.com"),
InsecureValueWarning("child-src", "http://foo.com")));
}
namespace extensions {
namespace csp_validator {
void PrintTo(const CSPParser::Directive& directive, ::std::ostream* os) {
*os << base::StringPrintf(
"[[%s] [%s] [%s]]", directive.directive_string.as_string().c_str(),
directive.directive_name.c_str(),
base::JoinString(directive.directive_values, ",").c_str());
}
} // namespace csp_validator
} // namespace extensions
TEST(ExtensionCSPValidator, ParseCSP) {
using CSPParser = extensions::csp_validator::CSPParser;
using DirectiveList = CSPParser::DirectiveList;
struct TestCase {
TestCase(const char* policy, DirectiveList expected_directives)
: policy(policy), expected_directives(std::move(expected_directives)) {}
const char* policy;
DirectiveList expected_directives;
};
std::vector<TestCase> cases;
cases.emplace_back(" \n \r \t ", DirectiveList());
cases.emplace_back(" ; \n ;\r \t ;;", DirectiveList());
const char* policy = R"( deFAULt-src 'self' ;
img-src * ; media-src media1.com MEDIA2.com;
img-src 'self';
)";
DirectiveList expected_directives;
expected_directives.emplace_back("deFAULt-src 'self'", "default-src",
std::vector<base::StringPiece>({"'self'"}));
expected_directives.emplace_back("img-src *", "img-src",
std::vector<base::StringPiece>({"*"}));
expected_directives.emplace_back(
"media-src media1.com MEDIA2.com", "media-src",
std::vector<base::StringPiece>({"media1.com", "MEDIA2.com"}));
expected_directives.emplace_back("img-src 'self'", "img-src",
std::vector<base::StringPiece>({"'self'"}));
cases.emplace_back(policy, std::move(expected_directives));
for (const auto& test_case : cases) {
SCOPED_TRACE(test_case.policy);
CSPParser parser(test_case.policy);
// Cheat and compare serialized versions of the directives.
EXPECT_EQ(::testing::PrintToString(parser.directives()),
::testing::PrintToString(test_case.expected_directives));
}
}