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/*
* Copyright (C) 2018 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <androidfw/ResourceTypes.h>
#include <androidfw/ZipFileRO.h>
#include <libgen.h>
#include <algorithm>
#include "client/file_sync_client.h"
#include "commandline.h"
#include "fastdeploy.h"
#include "fastdeploycallbacks.h"
#include "utils/String16.h"
const long kRequiredAgentVersion = 0x00000001;
const char* kDeviceAgentPath = "/data/local/tmp/";
long get_agent_version() {
std::vector<char> versionOutputBuffer;
std::vector<char> versionErrorBuffer;
int statusCode = capture_shell_command("/data/local/tmp/deployagent.sh version",
&versionOutputBuffer, &versionErrorBuffer);
long version = -1;
if (statusCode == 0 && versionOutputBuffer.size() > 0) {
version = strtol((char*)versionOutputBuffer.data(), NULL, 16);
}
return version;
}
int get_device_api_level() {
std::vector<char> sdkVersionOutputBuffer;
std::vector<char> sdkVersionErrorBuffer;
int api_level = -1;
int statusCode = capture_shell_command("getprop ro.build.version.sdk", &sdkVersionOutputBuffer,
&sdkVersionErrorBuffer);
if (statusCode == 0 && statusCode == 0 && sdkVersionOutputBuffer.size() > 0) {
api_level = strtol((char*)sdkVersionOutputBuffer.data(), NULL, 10);
}
return api_level;
}
// local_path - must start with a '/' and be relative to $ANDROID_PRODUCT_OUT
static bool get_agent_component_host_path(bool use_localagent, const char* adb_path,
const char* local_path, const char* sdk_path,
std::string* output_path) {
std::string mutable_adb_path = adb_path;
const char* adb_dir = dirname(&mutable_adb_path[0]);
if (adb_dir == nullptr) {
return false;
}
if (use_localagent) {
const char* product_out = getenv("ANDROID_PRODUCT_OUT");
if (product_out == nullptr) {
return false;
}
*output_path = android::base::StringPrintf("%s%s", product_out, local_path);
return true;
} else {
*output_path = android::base::StringPrintf("%s%s", adb_dir, sdk_path);
return true;
}
return false;
}
static bool deploy_agent(bool checkTimeStamps, bool use_localagent, const char* adb_path) {
std::vector<const char*> srcs;
std::string agent_jar_path;
if (get_agent_component_host_path(use_localagent, adb_path, "/system/framework/deployagent.jar",
"/deployagent.jar", &agent_jar_path)) {
srcs.push_back(agent_jar_path.c_str());
} else {
return false;
}
std::string agent_sh_path;
if (get_agent_component_host_path(use_localagent, adb_path, "/system/bin/deployagent.sh",
"/deployagent.sh", &agent_sh_path)) {
srcs.push_back(agent_sh_path.c_str());
} else {
return false;
}
if (do_sync_push(srcs, kDeviceAgentPath, checkTimeStamps)) {
// on windows the shell script might have lost execute permission
// so need to set this explicitly
const char* kChmodCommandPattern = "chmod 777 %sdeployagent.sh";
std::string chmodCommand =
android::base::StringPrintf(kChmodCommandPattern, kDeviceAgentPath);
int ret = send_shell_command(chmodCommand.c_str());
return (ret == 0);
} else {
return false;
}
}
bool update_agent(FastDeploy_AgentUpdateStrategy agentUpdateStrategy, bool use_localagent,
const char* adb_path) {
long agent_version = get_agent_version();
switch (agentUpdateStrategy) {
case FastDeploy_AgentUpdateAlways:
if (deploy_agent(false, use_localagent, adb_path) == false) {
return false;
}
break;
case FastDeploy_AgentUpdateNewerTimeStamp:
if (deploy_agent(true, use_localagent, adb_path) == false) {
return false;
}
break;
case FastDeploy_AgentUpdateDifferentVersion:
if (agent_version != kRequiredAgentVersion) {
if (agent_version < 0) {
printf("Could not detect agent on device, deploying\n");
} else {
printf("Device agent version is (%ld), (%ld) is required, re-deploying\n",
agent_version, kRequiredAgentVersion);
}
if (deploy_agent(false, use_localagent, adb_path) == false) {
return false;
}
}
break;
}
agent_version = get_agent_version();
return (agent_version == kRequiredAgentVersion);
}
static std::string get_string_from_utf16(const char16_t* input, int input_len) {
ssize_t utf8_length = utf16_to_utf8_length(input, input_len);
if (utf8_length <= 0) {
return {};
}
std::string utf8;
utf8.resize(utf8_length);
utf16_to_utf8(input, input_len, &*utf8.begin(), utf8_length + 1);
return utf8;
}
// output is required to point to a valid output string (non-null)
static bool get_packagename_from_apk(const char* apkPath, std::string* output) {
using namespace android;
ZipFileRO* zipFile = ZipFileRO::open(apkPath);
if (zipFile == nullptr) {
return false;
}
ZipEntryRO entry = zipFile->findEntryByName("AndroidManifest.xml");
if (entry == nullptr) {
return false;
}
uint32_t manifest_len = 0;
if (!zipFile->getEntryInfo(entry, NULL, &manifest_len, NULL, NULL, NULL, NULL)) {
return false;
}
std::vector<char> manifest_data(manifest_len);
if (!zipFile->uncompressEntry(entry, manifest_data.data(), manifest_len)) {
return false;
}
ResXMLTree tree;
status_t setto_status = tree.setTo(manifest_data.data(), manifest_len, true);
if (setto_status != NO_ERROR) {
return false;
}
ResXMLParser::event_code_t code;
while ((code = tree.next()) != ResXMLParser::BAD_DOCUMENT &&
code != ResXMLParser::END_DOCUMENT) {
switch (code) {
case ResXMLParser::START_TAG: {
size_t element_name_length;
const char16_t* element_name = tree.getElementName(&element_name_length);
if (element_name == nullptr) {
continue;
}
std::u16string element_name_string(element_name, element_name_length);
if (element_name_string == u"manifest") {
for (int i = 0; i < (int)tree.getAttributeCount(); i++) {
size_t attribute_name_length;
const char16_t* attribute_name_text =
tree.getAttributeName(i, &attribute_name_length);
if (attribute_name_text == nullptr) {
continue;
}
std::u16string attribute_name_string(attribute_name_text,
attribute_name_length);
if (attribute_name_string == u"package") {
size_t attribute_value_length;
const char16_t* attribute_value_text =
tree.getAttributeStringValue(i, &attribute_value_length);
if (attribute_value_text == nullptr) {
continue;
}
*output = get_string_from_utf16(attribute_value_text,
attribute_value_length);
return true;
}
}
}
break;
}
default:
break;
}
}
return false;
}
int extract_metadata(const char* apkPath, FILE* outputFp) {
std::string packageName;
if (get_packagename_from_apk(apkPath, &packageName) == false) {
return -1;
}
const char* kAgentExtractCommandPattern = "/data/local/tmp/deployagent.sh extract %s";
std::string extractCommand =
android::base::StringPrintf(kAgentExtractCommandPattern, packageName.c_str());
std::vector<char> extractErrorBuffer;
int statusCode;
DeployAgentFileCallback cb(outputFp, &extractErrorBuffer, &statusCode);
int ret = send_shell_command(extractCommand.c_str(), false, &cb);
if (ret == 0) {
return cb.getBytesWritten();
}
return ret;
}
// output is required to point to a valid output string (non-null)
static bool patch_generator_command(bool use_localagent, const char* adb_path,
std::string* output) {
if (use_localagent) {
// This should never happen on a Windows machine
const char* kGeneratorCommandPattern = "java -jar %s/framework/deploypatchgenerator.jar";
const char* host_out = getenv("ANDROID_HOST_OUT");
if (host_out == nullptr) {
return false;
}
*output = android::base::StringPrintf(kGeneratorCommandPattern, host_out, host_out);
return true;
} else {
const char* kGeneratorCommandPattern = R"(java -jar "%s/deploypatchgenerator.jar")";
std::string mutable_adb_path = adb_path;
const char* adb_dir = dirname(&mutable_adb_path[0]);
if (adb_dir == nullptr) {
return false;
}
*output = android::base::StringPrintf(kGeneratorCommandPattern, adb_dir, adb_dir);
return true;
}
return false;
}
int create_patch(const char* apkPath, const char* metadataPath, const char* patchPath,
bool use_localagent, const char* adb_path) {
const char* kGeneratePatchCommandPattern = R"(%s "%s" "%s" > "%s")";
std::string patch_generator_command_string;
if (patch_generator_command(use_localagent, adb_path, &patch_generator_command_string) ==
false) {
return 1;
}
std::string generatePatchCommand = android::base::StringPrintf(
kGeneratePatchCommandPattern, patch_generator_command_string.c_str(), apkPath,
metadataPath, patchPath);
return system(generatePatchCommand.c_str());
}
std::string get_patch_path(const char* apkPath) {
std::string packageName;
if (get_packagename_from_apk(apkPath, &packageName) == false) {
return "";
}
std::string patchDevicePath =
android::base::StringPrintf("%s%s.patch", kDeviceAgentPath, packageName.c_str());
return patchDevicePath;
}
int apply_patch_on_device(const char* apkPath, const char* patchPath, const char* outputPath) {
const std::string kAgentApplyCommandPattern =
"/data/local/tmp/deployagent.sh apply %s %s -o %s";
std::string packageName;
if (get_packagename_from_apk(apkPath, &packageName) == false) {
return -1;
}
std::string patchDevicePath = get_patch_path(apkPath);
std::vector<const char*> srcs = {patchPath};
bool push_ok = do_sync_push(srcs, patchDevicePath.c_str(), false);
if (!push_ok) {
return -1;
}
std::string applyPatchCommand =
android::base::StringPrintf(kAgentApplyCommandPattern.c_str(), packageName.c_str(),
patchDevicePath.c_str(), outputPath);
return send_shell_command(applyPatchCommand);
}
int install_patch(const char* apkPath, const char* patchPath, int argc, const char** argv) {
const std::string kAgentApplyCommandPattern =
"/data/local/tmp/deployagent.sh apply %s %s -pm %s";
std::string packageName;
if (get_packagename_from_apk(apkPath, &packageName) == false) {
return -1;
}
std::vector<const char*> srcs;
std::string patchDevicePath =
android::base::StringPrintf("%s%s.patch", kDeviceAgentPath, packageName.c_str());
srcs.push_back(patchPath);
bool push_ok = do_sync_push(srcs, patchDevicePath.c_str(), false);
if (!push_ok) {
return -1;
}
std::vector<unsigned char> applyOutputBuffer;
std::vector<unsigned char> applyErrorBuffer;
std::string argsString;
for (int i = 0; i < argc; i++) {
argsString.append(argv[i]);
argsString.append(" ");
}
std::string applyPatchCommand =
android::base::StringPrintf(kAgentApplyCommandPattern.c_str(), packageName.c_str(),
patchDevicePath.c_str(), argsString.c_str());
return send_shell_command(applyPatchCommand);
}
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