Remove fastdeploy dependency on libandroidfw

Call aapt2 to determine package name instead of parsing APK within process.

Test: mm
Test: adb install -r -f --force-agent --local-agent ~/example_apks/example.apk
Test: adb install -r -f --no-streaming --force-agent --local-agent ~/example_apks/example.apk
Change-Id: I99b2c64f0617a9bb27a5c54a2e8f39efd5028f36
diff --git a/adb/Android.bp b/adb/Android.bp
index 1469e77..7bea166 100644
--- a/adb/Android.bp
+++ b/adb/Android.bp
@@ -174,12 +174,6 @@
         "libdiagnose_usb",
         "libmdnssd",
         "libusb",
-        "libandroidfw",
-        "libziparchive",
-        "libz",
-        "libutils",
-        "liblog",
-        "libcutils",
     ],
 }
 
@@ -262,12 +256,6 @@
         "liblog",
         "libmdnssd",
         "libusb",
-        "libandroidfw",
-        "libziparchive",
-        "libz",
-        "libutils",
-        "liblog",
-        "libcutils",
     ],
 
     stl: "libc++_static",
diff --git a/adb/client/adb_install.cpp b/adb/client/adb_install.cpp
index 95574ed..8239dfa 100644
--- a/adb/client/adb_install.cpp
+++ b/adb/client/adb_install.cpp
@@ -130,7 +130,7 @@
 }
 
 static int install_app_streamed(int argc, const char** argv, bool use_fastdeploy,
-                                bool use_localagent, const char* adb_path) {
+                                bool use_localagent) {
     printf("Performing Streamed Install\n");
 
     // The last argument must be the APK file
@@ -152,8 +152,7 @@
             printf("failed to extract metadata %d\n", metadata_len);
             return 1;
         } else {
-            int create_patch_result = create_patch(file, metadataTmpFile.path, patchTmpFile.path,
-                                                   use_localagent, adb_path);
+            int create_patch_result = create_patch(file, metadataTmpFile.path, patchTmpFile.path);
             if (create_patch_result != 0) {
                 printf("Patch creation failure, error code: %d\n", create_patch_result);
                 result = create_patch_result;
@@ -226,8 +225,8 @@
     }
 }
 
-static int install_app_legacy(int argc, const char** argv, bool use_fastdeploy, bool use_localagent,
-                              const char* adb_path) {
+static int install_app_legacy(int argc, const char** argv, bool use_fastdeploy,
+                              bool use_localagent) {
     static const char* const DATA_DEST = "/data/local/tmp/%s";
     static const char* const SD_DEST = "/sdcard/tmp/%s";
     const char* where = DATA_DEST;
@@ -269,8 +268,8 @@
             printf("failed to extract metadata %d\n", metadata_len);
             return 1;
         } else {
-            int create_patch_result = create_patch(apk_file[0], metadataTmpFile.path,
-                                                   patchTmpFile.path, use_localagent, adb_path);
+            int create_patch_result =
+                    create_patch(apk_file[0], metadataTmpFile.path, patchTmpFile.path);
             if (create_patch_result != 0) {
                 printf("Patch creation failure, error code: %d\n", create_patch_result);
                 result = create_patch_result;
@@ -380,14 +379,10 @@
         }
     }
 
-    std::string adb_path = android::base::GetExecutablePath();
-
-    if (adb_path.length() == 0) {
-        return 1;
-    }
     if (use_fastdeploy == true) {
-        bool agent_up_to_date =
-                update_agent(agent_update_strategy, use_localagent, adb_path.c_str());
+        fastdeploy_init(use_localagent);
+
+        bool agent_up_to_date = update_agent(agent_update_strategy);
         if (agent_up_to_date == false) {
             printf("Failed to update agent, exiting\n");
             return 1;
@@ -397,10 +392,10 @@
     switch (installMode) {
         case INSTALL_PUSH:
             return install_app_legacy(passthrough_argv.size(), passthrough_argv.data(),
-                                      use_fastdeploy, use_localagent, adb_path.c_str());
+                                      use_fastdeploy, use_localagent);
         case INSTALL_STREAM:
             return install_app_streamed(passthrough_argv.size(), passthrough_argv.data(),
-                                        use_fastdeploy, use_localagent, adb_path.c_str());
+                                        use_fastdeploy, use_localagent);
         case INSTALL_DEFAULT:
         default:
             return 1;
diff --git a/adb/client/fastdeploy.cpp b/adb/client/fastdeploy.cpp
index 3b05661..c0d793c 100644
--- a/adb/client/fastdeploy.cpp
+++ b/adb/client/fastdeploy.cpp
@@ -14,11 +14,12 @@
  * limitations under the License.
  */
 
-#include <androidfw/ResourceTypes.h>
-#include <androidfw/ZipFileRO.h>
 #include <libgen.h>
 #include <algorithm>
+#include <array>
 
+#include "android-base/file.h"
+#include "android-base/strings.h"
 #include "client/file_sync_client.h"
 #include "commandline.h"
 #include "fastdeploy.h"
@@ -29,6 +30,15 @@
 
 static constexpr const char* kDeviceAgentPath = "/data/local/tmp/";
 
+struct TFastDeployConfig {
+    bool use_localagent;
+};
+
+static TFastDeployConfig& get_fastdeploy_config() {
+    TFastDeployConfig& instance = *new TFastDeployConfig;
+    return instance;
+}
+
 long get_agent_version() {
     std::vector<char> versionOutputBuffer;
     std::vector<char> versionErrorBuffer;
@@ -58,17 +68,19 @@
     return api_level;
 }
 
+void fastdeploy_init(bool use_localagent) {
+    get_fastdeploy_config().use_localagent = use_localagent;
+}
+
 // 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,
+static bool get_agent_component_host_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) {
+    std::string adb_dir = android::base::GetExecutableDirectory();
+    if (adb_dir.empty()) {
         return false;
     }
 
-    if (use_localagent) {
+    if (get_fastdeploy_config().use_localagent) {
         const char* product_out = getenv("ANDROID_PRODUCT_OUT");
         if (product_out == nullptr) {
             return false;
@@ -76,26 +88,25 @@
         *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);
+        *output_path = adb_dir + sdk_path;
         return true;
     }
     return false;
 }
 
-static bool deploy_agent(bool checkTimeStamps, bool use_localagent, const char* adb_path) {
+static bool deploy_agent(bool checkTimeStamps) {
     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)) {
+    if (get_agent_component_host_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)) {
+    if (get_agent_component_host_path("/system/bin/deployagent.sh", "/deployagent.sh",
+                                      &agent_sh_path)) {
         srcs.push_back(agent_sh_path.c_str());
     } else {
         return false;
@@ -114,17 +125,16 @@
     }
 }
 
-bool update_agent(FastDeploy_AgentUpdateStrategy agentUpdateStrategy, bool use_localagent,
-                  const char* adb_path) {
+bool update_agent(FastDeploy_AgentUpdateStrategy agentUpdateStrategy) {
     long agent_version = get_agent_version();
     switch (agentUpdateStrategy) {
         case FastDeploy_AgentUpdateAlways:
-            if (deploy_agent(false, use_localagent, adb_path) == false) {
+            if (deploy_agent(false) == false) {
                 return false;
             }
             break;
         case FastDeploy_AgentUpdateNewerTimeStamp:
-            if (deploy_agent(true, use_localagent, adb_path) == false) {
+            if (deploy_agent(true) == false) {
                 return false;
             }
             break;
@@ -136,7 +146,7 @@
                     printf("Device agent version is (%ld), (%ld) is required, re-deploying\n",
                            agent_version, kRequiredAgentVersion);
                 }
-                if (deploy_agent(false, use_localagent, adb_path) == false) {
+                if (deploy_agent(false) == false) {
                     return false;
                 }
             }
@@ -147,91 +157,54 @@
     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 {};
+static std::string get_aapt2_path() {
+    if (get_fastdeploy_config().use_localagent) {
+        // This should never happen on a Windows machine
+        const char* host_out = getenv("ANDROID_HOST_OUT");
+        if (host_out == nullptr) {
+            fatal("Could not locate aapt2 because $ANDROID_HOST_OUT is not defined");
+        }
+        return android::base::StringPrintf("%s/bin/aapt2", host_out);
     }
 
-    std::string utf8;
-    utf8.resize(utf8_length);
-    utf16_to_utf8(input, input_len, &*utf8.begin(), utf8_length + 1);
-    return utf8;
+    std::string adb_dir = android::base::GetExecutableDirectory();
+    if (adb_dir.empty()) {
+        fatal("Could not locate aapt2");
+    }
+    return adb_dir + "/aapt2";
+}
+
+static int system_capture(const char* cmd, std::string& output) {
+    FILE* pipe = popen(cmd, "re");
+    int fd = -1;
+
+    if (pipe != nullptr) {
+        fd = fileno(pipe);
+    }
+
+    if (fd == -1) {
+        fatal_errno("Could not create pipe for process '%s'", cmd);
+    }
+
+    if (!android::base::ReadFdToString(fd, &output)) {
+        fatal_errno("Error reading from process '%s'", cmd);
+    }
+
+    return pclose(pipe);
 }
 
 // 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;
+    const char* kAapt2DumpNameCommandPattern = R"(%s dump packagename "%s")";
+    std::string aapt2_path_string = get_aapt2_path();
+    std::string getPackagenameCommand = android::base::StringPrintf(
+            kAapt2DumpNameCommandPattern, aapt2_path_string.c_str(), apkPath);
 
-    ZipFileRO* zipFile = ZipFileRO::open(apkPath);
-    if (zipFile == nullptr) {
-        return false;
+    if (system_capture(getPackagenameCommand.c_str(), *output) == 0) {
+        // strip any line end characters from the output
+        *output = android::base::Trim(*output);
+        return true;
     }
-
-    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;
 }
 
@@ -257,43 +230,30 @@
     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) {
+static std::string get_patch_generator_command() {
+    if (get_fastdeploy_config().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;
+            fatal("Could not locate deploypatchgenerator.jar because $ANDROID_HOST_OUT is not "
+                  "defined");
         }
-        *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 android::base::StringPrintf("java -jar %s/framework/deploypatchgenerator.jar",
+                                           host_out);
     }
-    return false;
+
+    std::string adb_dir = android::base::GetExecutableDirectory();
+    if (adb_dir.empty()) {
+        fatal("Could not locate deploypatchgenerator.jar");
+    }
+    return android::base::StringPrintf(R"(java -jar "%s/deploypatchgenerator.jar")",
+                                       adb_dir.c_str());
 }
 
-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;
-    }
+int create_patch(const char* apkPath, const char* metadataPath, const char* patchPath) {
     std::string generatePatchCommand = android::base::StringPrintf(
-            kGeneratePatchCommandPattern, patch_generator_command_string.c_str(), apkPath,
-            metadataPath, patchPath);
+            R"(%s "%s" "%s" > "%s")", get_patch_generator_command().c_str(), apkPath, metadataPath,
+            patchPath);
     return system(generatePatchCommand.c_str());
 }
 
@@ -302,6 +262,7 @@
     if (get_packagename_from_apk(apkPath, &packageName) == false) {
         return "";
     }
+
     std::string patchDevicePath =
             android::base::StringPrintf("%s%s.patch", kDeviceAgentPath, packageName.c_str());
     return patchDevicePath;
@@ -315,6 +276,7 @@
     if (get_packagename_from_apk(apkPath, &packageName) == false) {
         return -1;
     }
+
     std::string patchDevicePath = get_patch_path(apkPath);
 
     std::vector<const char*> srcs = {patchPath};
@@ -327,6 +289,7 @@
     std::string applyPatchCommand =
             android::base::StringPrintf(kAgentApplyCommandPattern.c_str(), packageName.c_str(),
                                         patchDevicePath.c_str(), outputPath);
+
     return send_shell_command(applyPatchCommand);
 }
 
diff --git a/adb/client/fastdeploy.h b/adb/client/fastdeploy.h
index d8acd30..ec24f97 100644
--- a/adb/client/fastdeploy.h
+++ b/adb/client/fastdeploy.h
@@ -18,20 +18,20 @@
 
 #include "adb.h"
 
-typedef enum EFastDeploy_AgentUpdateStrategy {
+enum FastDeploy_AgentUpdateStrategy {
     FastDeploy_AgentUpdateAlways,
     FastDeploy_AgentUpdateNewerTimeStamp,
     FastDeploy_AgentUpdateDifferentVersion
-} FastDeploy_AgentUpdateStrategy;
+};
 
 static constexpr int kFastDeployMinApi = 24;
 
+void fastdeploy_init(bool use_localagent);
+
 int get_device_api_level();
-bool update_agent(FastDeploy_AgentUpdateStrategy agentUpdateStrategy, bool use_localagent,
-                  const char* adb_path);
+bool update_agent(FastDeploy_AgentUpdateStrategy agentUpdateStrategy);
 int extract_metadata(const char* apkPath, FILE* outputFp);
-int create_patch(const char* apkPath, const char* metadataPath, const char* patchPath,
-                 bool use_localagent, const char* adb_path);
+int create_patch(const char* apkPath, const char* metadataPath, const char* patchPath);
 int apply_patch_on_device(const char* apkPath, const char* patchPath, const char* outputPath);
 int install_patch(const char* apkPath, const char* patchPath, int argc, const char** argv);
 std::string get_patch_path(const char* apkPath);