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-rw-r--r--tools/aapt2/cmd/Link.h2
-rw-r--r--tools/aapt2/dump/DumpManifest.cpp31
-rw-r--r--tools/aapt2/link/ManifestFixer.cpp17
-rw-r--r--tools/aapt2/link/ManifestFixer.h6
-rw-r--r--tools/aapt2/link/ManifestFixer_test.cpp57
5 files changed, 110 insertions, 3 deletions
diff --git a/tools/aapt2/cmd/Link.h b/tools/aapt2/cmd/Link.h
index 5fdfb66bdf4e..2ce2167c1bf3 100644
--- a/tools/aapt2/cmd/Link.h
+++ b/tools/aapt2/cmd/Link.h
@@ -209,6 +209,8 @@ class LinkCommand : public Command {
AddOptionalFlag("--compile-sdk-version-name",
"Version name to inject into the AndroidManifest.xml if none is present.",
&options_.manifest_fixer_options.compile_sdk_version_codename);
+ AddOptionalFlagList("--fingerprint-prefix", "Fingerprint prefix to add to install constraints.",
+ &options_.manifest_fixer_options.fingerprint_prefixes);
AddOptionalSwitch("--shared-lib", "Generates a shared Android runtime library.",
&shared_lib_);
AddOptionalSwitch("--static-lib", "Generate a static Android library.", &static_lib_);
diff --git a/tools/aapt2/dump/DumpManifest.cpp b/tools/aapt2/dump/DumpManifest.cpp
index c66f4e5b7c30..a43bf1b60f42 100644
--- a/tools/aapt2/dump/DumpManifest.cpp
+++ b/tools/aapt2/dump/DumpManifest.cpp
@@ -2120,6 +2120,33 @@ class InputType : public ManifestExtractor::Element {
}
};
+/** Represents <install-constraints> elements. **/
+class InstallConstraints : public ManifestExtractor::Element {
+ public:
+ InstallConstraints() = default;
+ std::vector<std::string> fingerprint_prefixes;
+
+ void Extract(xml::Element* element) override {
+ for (xml::Element* child : element->GetChildElements()) {
+ if (child->name == "fingerprint-prefix") {
+ xml::Attribute* attr = child->FindAttribute(kAndroidNamespace, "value");
+ if (attr) {
+ fingerprint_prefixes.push_back(attr->value);
+ }
+ }
+ }
+ }
+
+ void Print(text::Printer* printer) override {
+ if (!fingerprint_prefixes.empty()) {
+ printer->Print(StringPrintf("install-constraints:\n"));
+ for (const auto& prefix : fingerprint_prefixes) {
+ printer->Print(StringPrintf(" fingerprint-prefix='%s'\n", prefix.c_str()));
+ }
+ }
+ }
+};
+
/** Represents <original-package> elements. **/
class OriginalPackage : public ManifestExtractor::Element {
public:
@@ -2869,7 +2896,7 @@ template <typename T>
constexpr const char* GetExpectedTagForType() {
// This array does not appear at runtime, as GetExpectedTagForType function is used by compiler
// to inject proper 'expected_tag' into ElementCast.
- std::array<std::pair<const char*, bool>, 37> tags = {
+ std::array<std::pair<const char*, bool>, 38> tags = {
std::make_pair("action", std::is_same<Action, T>::value),
std::make_pair("activity", std::is_same<Activity, T>::value),
std::make_pair("additional-certificate", std::is_same<AdditionalCertificate, T>::value),
@@ -2878,6 +2905,7 @@ constexpr const char* GetExpectedTagForType() {
std::make_pair("compatible-screens", std::is_same<CompatibleScreens, T>::value),
std::make_pair("feature-group", std::is_same<FeatureGroup, T>::value),
std::make_pair("input-type", std::is_same<InputType, T>::value),
+ std::make_pair("install-constraints", std::is_same<InstallConstraints, T>::value),
std::make_pair("intent-filter", std::is_same<IntentFilter, T>::value),
std::make_pair("meta-data", std::is_same<MetaData, T>::value),
std::make_pair("manifest", std::is_same<Manifest, T>::value),
@@ -2948,6 +2976,7 @@ std::unique_ptr<ManifestExtractor::Element> ManifestExtractor::Element::Inflate(
{"compatible-screens", &CreateType<CompatibleScreens>},
{"feature-group", &CreateType<FeatureGroup>},
{"input-type", &CreateType<InputType>},
+ {"install-constraints", &CreateType<InstallConstraints>},
{"intent-filter", &CreateType<IntentFilter>},
{"manifest", &CreateType<Manifest>},
{"meta-data", &CreateType<MetaData>},
diff --git a/tools/aapt2/link/ManifestFixer.cpp b/tools/aapt2/link/ManifestFixer.cpp
index 56d90758ee73..53f0abee1cf2 100644
--- a/tools/aapt2/link/ManifestFixer.cpp
+++ b/tools/aapt2/link/ManifestFixer.cpp
@@ -749,6 +749,23 @@ bool ManifestFixer::Consume(IAaptContext* context, xml::XmlResource* doc) {
attr->value = options_.compile_sdk_version_codename.value();
}
+ if (!options_.fingerprint_prefixes.empty()) {
+ xml::Element* install_constraints_el = root->FindChild({}, "install-constraints");
+ if (install_constraints_el == nullptr) {
+ std::unique_ptr<xml::Element> install_constraints = std::make_unique<xml::Element>();
+ install_constraints->name = "install-constraints";
+ install_constraints_el = install_constraints.get();
+ root->AppendChild(std::move(install_constraints));
+ }
+ for (const std::string& prefix : options_.fingerprint_prefixes) {
+ std::unique_ptr<xml::Element> prefix_el = std::make_unique<xml::Element>();
+ prefix_el->name = "fingerprint-prefix";
+ xml::Attribute* attr = prefix_el->FindOrCreateAttribute(xml::kSchemaAndroid, "value");
+ attr->value = prefix;
+ install_constraints_el->AppendChild(std::move(prefix_el));
+ }
+ }
+
xml::XmlActionExecutor executor;
if (!BuildRules(&executor, context->GetDiagnostics())) {
return false;
diff --git a/tools/aapt2/link/ManifestFixer.h b/tools/aapt2/link/ManifestFixer.h
index 90f5177e752e..175ab6f1cd7b 100644
--- a/tools/aapt2/link/ManifestFixer.h
+++ b/tools/aapt2/link/ManifestFixer.h
@@ -18,11 +18,10 @@
#define AAPT_LINK_MANIFESTFIXER_H
#include <string>
+#include <vector>
#include "android-base/macros.h"
-
#include "process/IResourceTableConsumer.h"
-
#include "xml/XmlActionExecutor.h"
#include "xml/XmlDom.h"
@@ -75,6 +74,9 @@ struct ManifestFixerOptions {
// 'android:compileSdkVersionCodename' in the <manifest> tag.
std::optional<std::string> compile_sdk_version_codename;
+ // The fingerprint prefixes to be added to the <install-constraints> tag.
+ std::vector<std::string> fingerprint_prefixes;
+
// Whether validation errors should be treated only as warnings. If this is 'true', then an
// incorrect node will not result in an error, but only as a warning, and the parsing will
// continue.
diff --git a/tools/aapt2/link/ManifestFixer_test.cpp b/tools/aapt2/link/ManifestFixer_test.cpp
index 7180ae6b8bc7..1b8f05b957a7 100644
--- a/tools/aapt2/link/ManifestFixer_test.cpp
+++ b/tools/aapt2/link/ManifestFixer_test.cpp
@@ -965,6 +965,63 @@ TEST_F(ManifestFixerTest, UnexpectedElementsInManifest) {
ASSERT_THAT(manifest, IsNull());
}
+TEST_F(ManifestFixerTest, InsertFingerprintPrefixIfNotExist) {
+ std::string input = R"(
+ <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="android">
+ </manifest>)";
+ ManifestFixerOptions options;
+ options.fingerprint_prefixes = {"foo", "bar"};
+
+ std::unique_ptr<xml::XmlResource> manifest = VerifyWithOptions(input, options);
+ ASSERT_THAT(manifest, NotNull());
+ xml::Element* install_constraints = manifest->root.get()->FindChild({}, "install-constraints");
+ ASSERT_THAT(install_constraints, NotNull());
+ std::vector<xml::Element*> fingerprint_prefixes = install_constraints->GetChildElements();
+ EXPECT_EQ(fingerprint_prefixes.size(), 2);
+ xml::Attribute* attr;
+ EXPECT_THAT(fingerprint_prefixes[0]->name, StrEq("fingerprint-prefix"));
+ attr = fingerprint_prefixes[0]->FindAttribute(xml::kSchemaAndroid, "value");
+ ASSERT_THAT(attr, NotNull());
+ EXPECT_THAT(attr->value, StrEq("foo"));
+ EXPECT_THAT(fingerprint_prefixes[1]->name, StrEq("fingerprint-prefix"));
+ attr = fingerprint_prefixes[1]->FindAttribute(xml::kSchemaAndroid, "value");
+ ASSERT_THAT(attr, NotNull());
+ EXPECT_THAT(attr->value, StrEq("bar"));
+}
+
+TEST_F(ManifestFixerTest, AppendFingerprintPrefixIfExists) {
+ std::string input = R"(
+ <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+ package="android">
+ <install-constraints>
+ <fingerprint-prefix android:value="foo" />
+ </install-constraints>
+ </manifest>)";
+ ManifestFixerOptions options;
+ options.fingerprint_prefixes = {"bar", "baz"};
+
+ std::unique_ptr<xml::XmlResource> manifest = VerifyWithOptions(input, options);
+ ASSERT_THAT(manifest, NotNull());
+ xml::Element* install_constraints = manifest->root.get()->FindChild({}, "install-constraints");
+ ASSERT_THAT(install_constraints, NotNull());
+ std::vector<xml::Element*> fingerprint_prefixes = install_constraints->GetChildElements();
+ EXPECT_EQ(fingerprint_prefixes.size(), 3);
+ xml::Attribute* attr;
+ EXPECT_THAT(fingerprint_prefixes[0]->name, StrEq("fingerprint-prefix"));
+ attr = fingerprint_prefixes[0]->FindAttribute(xml::kSchemaAndroid, "value");
+ ASSERT_THAT(attr, NotNull());
+ EXPECT_THAT(attr->value, StrEq("foo"));
+ EXPECT_THAT(fingerprint_prefixes[1]->name, StrEq("fingerprint-prefix"));
+ attr = fingerprint_prefixes[1]->FindAttribute(xml::kSchemaAndroid, "value");
+ ASSERT_THAT(attr, NotNull());
+ EXPECT_THAT(attr->value, StrEq("bar"));
+ EXPECT_THAT(fingerprint_prefixes[2]->name, StrEq("fingerprint-prefix"));
+ attr = fingerprint_prefixes[2]->FindAttribute(xml::kSchemaAndroid, "value");
+ ASSERT_THAT(attr, NotNull());
+ EXPECT_THAT(attr->value, StrEq("baz"));
+}
+
TEST_F(ManifestFixerTest, UsesLibraryMustHaveNonEmptyName) {
std::string input = R"(
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
generated by cgit v1.2.3-59-g8ed1b (git 2.39.0) at 2025-11-01 15:43:31 +0000