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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/renderer/content_security_policy_util.h"
#include "base/containers/to_vector.h"
#include "services/network/public/cpp/content_security_policy/content_security_policy.h"
#include "services/network/public/mojom/content_security_policy.mojom.h"
namespace content {
namespace {
std::vector<std::string> BuildVectorOfStrings(
const std::vector<blink::WebString>& list_in) {
return base::ToVector(list_in,
[](const blink::WebString& s) { return s.Utf8(); });
}
network::mojom::CSPSourcePtr BuildCSPSource(const blink::WebCSPSource& source) {
return network::mojom::CSPSource::New(
source.scheme.Utf8(), source.host.Utf8(), source.port, source.path.Utf8(),
source.is_host_wildcard, source.is_port_wildcard);
}
network::mojom::CSPHashSourcePtr BuildCSPHashSource(
const blink::WebCSPHashSource& hash_source) {
return network::mojom::CSPHashSource::New(hash_source.algorithm,
hash_source.value);
}
network::mojom::CSPSourceListPtr BuildCSPSourceList(
const blink::WebCSPSourceList& source_list) {
return network::mojom::CSPSourceList::New(
base::ToVector(source_list.sources, BuildCSPSource),
BuildVectorOfStrings(source_list.nonces),
base::ToVector(source_list.hashes, BuildCSPHashSource),
base::ToVector(source_list.url_hashes, BuildCSPHashSource),
base::ToVector(source_list.eval_hashes, BuildCSPHashSource),
source_list.allow_self, source_list.allow_star, source_list.allow_inline,
source_list.allow_inline_speculation_rules, source_list.allow_eval,
source_list.allow_wasm_eval, source_list.allow_wasm_unsafe_eval,
source_list.allow_dynamic, source_list.allow_dynamic_url,
source_list.allow_unsafe_hashes, source_list.report_sample,
source_list.report_hash_algorithm);
}
std::vector<blink::WebString> ToVectorOfWebStrings(
std::vector<std::string> list_in) {
return base::ToVector(list_in, &blink::WebString::FromUTF8);
}
// The parameter is a const reference instead of CSPSourcePtr so that the
// function can be used directly as a projection in ToVector.
blink::WebCSPSource ToWebCSPSource(const network::mojom::CSPSourcePtr& source) {
return {blink::WebString::FromUTF8(std::move(source->scheme)),
blink::WebString::FromUTF8(std::move(source->host)),
source->port,
blink::WebString::FromUTF8(std::move(source->path)),
source->is_host_wildcard,
source->is_port_wildcard};
}
blink::WebCSPHashSource ToWebCSPHashSource(
const network::mojom::CSPHashSourcePtr& hash_source) {
return {hash_source->algorithm, std::move(hash_source->value)};
}
blink::WebCSPSourceList ToWebCSPSourceList(
network::mojom::CSPSourceListPtr source_list) {
return {
base::ToVector(std::move(source_list->sources), ToWebCSPSource),
ToVectorOfWebStrings(std::move(source_list->nonces)),
base::ToVector(std::move(source_list->hashes), ToWebCSPHashSource),
base::ToVector(std::move(source_list->url_hashes), ToWebCSPHashSource),
base::ToVector(std::move(source_list->eval_hashes), ToWebCSPHashSource),
source_list->allow_self,
source_list->allow_star,
source_list->allow_inline,
source_list->allow_inline_speculation_rules,
source_list->allow_eval,
source_list->allow_wasm_eval,
source_list->allow_wasm_unsafe_eval,
source_list->allow_dynamic,
source_list->allow_dynamic_url,
source_list->allow_unsafe_hashes,
source_list->report_sample,
source_list->report_hash_algorithm};
}
std::optional<blink::WebCSPTrustedTypes> ToOptionalWebCSPTrustedTypes(
network::mojom::CSPTrustedTypesPtr trusted_types) {
if (!trusted_types)
return std::nullopt;
return blink::WebCSPTrustedTypes{
ToVectorOfWebStrings(std::move(trusted_types->list)),
trusted_types->allow_any, trusted_types->allow_duplicates};
}
blink::WebContentSecurityPolicyHeader ToWebContentSecurityPolicyHeader(
network::mojom::ContentSecurityPolicyHeaderPtr header) {
return {blink::WebString::FromUTF8(std::move(header->header_value)),
header->type, header->source};
}
} // namespace
network::mojom::ContentSecurityPolicyPtr BuildContentSecurityPolicy(
const blink::WebContentSecurityPolicy& policy_in) {
base::flat_map<network::mojom::CSPDirectiveName, std::string> raw_directives;
for (const auto& directive : policy_in.raw_directives) {
raw_directives[directive.name] = directive.value.Utf8();
}
base::flat_map<network::mojom::CSPDirectiveName,
network::mojom::CSPSourceListPtr>
directives;
for (const auto& directive : policy_in.directives) {
directives[directive.name] = BuildCSPSourceList(directive.source_list);
}
return network::mojom::ContentSecurityPolicy::New(
BuildCSPSource(policy_in.self_origin), std::move(raw_directives),
std::move(directives), policy_in.upgrade_insecure_requests,
policy_in.treat_as_public_address, policy_in.block_all_mixed_content,
policy_in.sandbox,
network::mojom::ContentSecurityPolicyHeader::New(
policy_in.header.header_value.Utf8(), policy_in.header.type,
policy_in.header.source),
policy_in.use_reporting_api,
BuildVectorOfStrings(policy_in.report_endpoints),
policy_in.require_trusted_types_for,
policy_in.trusted_types
? network::mojom::CSPTrustedTypes::New(
BuildVectorOfStrings(policy_in.trusted_types->list),
policy_in.trusted_types->allow_any,
policy_in.trusted_types->allow_duplicates)
: nullptr,
BuildVectorOfStrings(policy_in.parsing_errors));
}
blink::WebContentSecurityPolicy ToWebContentSecurityPolicy(
network::mojom::ContentSecurityPolicyPtr policy_in) {
std::vector<blink::WebContentSecurityPolicyDirective> directives =
base::ToVector(std::move(policy_in->directives), [](auto&& directive) {
return blink::WebContentSecurityPolicyDirective{
directive.first, ToWebCSPSourceList(std::move(directive.second))};
});
std::vector<blink::WebContentSecurityPolicyRawDirective> raw_directives =
base::ToVector(
std::move(policy_in->raw_directives), [](const auto& directive) {
return blink::WebContentSecurityPolicyRawDirective{
directive.first, blink::WebString::FromUTF8(directive.second)};
});
return {ToWebCSPSource(std::move(policy_in->self_origin)),
std::move(raw_directives),
std::move(directives),
policy_in->upgrade_insecure_requests,
policy_in->treat_as_public_address,
policy_in->block_all_mixed_content,
policy_in->sandbox,
ToWebContentSecurityPolicyHeader(std::move(policy_in->header)),
policy_in->use_reporting_api,
ToVectorOfWebStrings(std::move(policy_in->report_endpoints)),
policy_in->require_trusted_types_for,
ToOptionalWebCSPTrustedTypes(std::move(policy_in->trusted_types)),
ToVectorOfWebStrings(std::move(policy_in->parsing_errors))};
}
std::vector<blink::WebContentSecurityPolicy> ToWebContentSecurityPolicies(
std::vector<network::mojom::ContentSecurityPolicyPtr> list_in) {
return base::ToVector(list_in, [](auto&& s) {
return ToWebContentSecurityPolicy(std::move(s));
});
}
} // namespace content
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