ref: split ApkManifest into data parser and content
This commit is contained in:
relikd
74
src/Apk+Icon.swift
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74
src/Apk+Icon.swift
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@@ -0,0 +1,74 @@
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import Foundation
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import AndroidXML
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extension MetaInfo {
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/// Read `AndroidManifest.xml` but only extract `appIcon`.
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func readApk_Icon() -> Apk_Icon? {
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assert(type == .APK)
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var apk = Apk(self)
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return Apk_Icon(&apk)
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}
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}
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// MARK: - Apk_Icon
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/// Representation of `AndroidManifest.xml` (containing only the icon extractor).
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/// Seperate from main class because everything else is not needed for `ThumbnailProvider`
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struct Apk_Icon {
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let path: String
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let data: Data
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init?(_ apk: inout Apk, iconRef: String? = nil) {
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if apk.isApkm, let iconData = apk.mainZip.unzipFile("icon.png") {
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path = "icon.png"
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data = iconData
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return
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}
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guard let manifest = apk.manifest else {
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return nil
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}
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var ref = iconRef
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// no need to parse xml if reference already supplied
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if ref == nil {
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if let xml = try? AndroidXML.init(data: manifest) {
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let parser = xml.parseXml()
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try? parser.iterElements({ startTag, attributes in
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if startTag == "application" {
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ref = try? attributes.get("android:icon")?.resolve(parser.stringPool)
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}
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}) {_ in}
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} else {
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// fallback to xml-string parser
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ref = ApkXmlIconParser().run(manifest)
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}
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}
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guard let img = apk.resolveIcon(&ref) else {
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return nil
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}
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path = ref!
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data = img
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}
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}
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/// Shorter form of `ApkXmlManifestParser` to only exctract the icon reference (used for Thumbnail Provider)
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private class ApkXmlIconParser: NSObject, XMLParserDelegate {
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var result: String? = nil
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func run(_ data: Data) -> String? {
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let parser = XMLParser(data: data)
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parser.delegate = self
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parser.parse()
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return result
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}
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func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
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if elementName == "application" {
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result = attrs["android:icon"]
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parser.abortParsing()
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}
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}
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}
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123
src/Apk+Manifest.swift
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123
src/Apk+Manifest.swift
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@@ -0,0 +1,123 @@
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import Foundation
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import AndroidXML
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extension MetaInfo {
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/// Read `AndroidManifest.xml` and parse its content
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func readApk_Manifest() -> Apk_Manifest? {
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assert(type == .APK)
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var apk = Apk(self)
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return Apk_Manifest.from(&apk)
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}
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}
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// MARK: - Apk_Manifest
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/// Representation of `AndroidManifest.xml`.
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/// See: <https://developer.android.com/guide/topics/manifest/manifest-element>
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struct Apk_Manifest {
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var packageId: String? = nil
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var appName: String? = nil
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var icon: Apk_Icon? = nil
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/// Computed property
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var appIconData: Data? = nil
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var versionName: String? = nil
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var versionCode: String? = nil
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var sdkVerMin: Int? = nil
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var sdkVerTarget: Int? = nil
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var featuresRequired: [String] = []
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var featuresOptional: [String] = []
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var permissions: [String] = []
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static func from(_ apk: inout Apk) -> Self? {
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guard let manifest = apk.manifest else {
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return nil
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}
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let storage = ApkXmlManifestParser()
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if let xml = try? AndroidXML.init(data: manifest) {
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let parser = xml.parseXml()
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let ignore = XMLParser()
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try? parser.iterElements({ startTag, attributes in
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if ALLOWED_TAGS.contains(startTag) {
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storage.parser(ignore, didStartElement: startTag, namespaceURI: nil, qualifiedName: nil, attributes: try attributes.asDictStr())
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}
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}) { endTag in
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if ALLOWED_TAGS.contains(endTag) {
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storage.parser(ignore, didEndElement: endTag, namespaceURI: nil, qualifiedName: nil)
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}
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}
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} else {
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// fallback to xml-string parser
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let parser = XMLParser(data: manifest)
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parser.delegate = storage
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parser.parse()
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}
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var rv = storage.result
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apk.resolveName(&rv.appName)
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rv.icon = Apk_Icon(&apk, iconRef: storage.iconRef)
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return rv
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}
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}
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// keep in sync with `ApkXmlManifestParser` below
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private let ALLOWED_TAGS = [
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"manifest",
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"application",
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"uses-feature",
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"uses-permission",
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"uses-permission-sdk-23",
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"uses-sdk",
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]
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/// Wrapper to use same code for binary-xml and string-xml parsing
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private class ApkXmlManifestParser: NSObject, XMLParserDelegate {
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private var _scope: [String] = []
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var result = Apk_Manifest()
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var iconRef: String? = nil
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func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
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// keep in sync with `ALLOWED_TAGS` above
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switch elementName {
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case "manifest":
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if _scope == [] {
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result.packageId = attrs["package"] // "org.bundle.id"
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result.versionName = attrs["android:versionName"] // "7.62.3"
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result.versionCode = attrs["android:versionCode"] // "160700"
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// attrs["platformBuildVersionCode"] // "35"
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// attrs["platformBuildVersionName"] // "15"
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}
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case "application":
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if _scope == ["manifest"] {
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result.appName = attrs["android:label"] // @resource-ref
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iconRef = attrs["android:icon"] // @resource-ref
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}
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case "uses-permission", "uses-permission-sdk-23":
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// no "permission" because that will produce duplicates with "uses-permission"
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if _scope == ["manifest"], let name = attrs["android:name"] {
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result.permissions.append(name)
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}
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case "uses-feature":
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if _scope == ["manifest"], let name = attrs["android:name"] {
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if attrs["android:required"] == "false" {
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result.featuresOptional.append(name)
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} else {
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result.featuresRequired.append(name)
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}
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}
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case "uses-sdk":
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if _scope == ["manifest"] {
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result.sdkVerMin = Int(attrs["android:minSdkVersion"] ?? "1") // "21"
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result.sdkVerTarget = Int(attrs["android:targetSdkVersion"] ?? "-1") // "35"
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}
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default: break // ignore
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}
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_scope.append(elementName)
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}
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func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
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_scope.removeLast()
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}
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}
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130
src/Apk.swift
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130
src/Apk.swift
Normal file
@@ -0,0 +1,130 @@
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import Foundation
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import AndroidXML
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/// Data structure for processing the content of `.apk` files.
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struct Apk {
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let isApkm: Bool
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let mainZip: ZipFile
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init(_ meta: MetaInfo) {
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isApkm = meta.url.pathExtension.lowercased() == "apkm"
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mainZip = meta.zipFile!
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}
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/// Unzip `AndroidManifest.xml` (once). Data is cached until deconstructor.
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lazy var manifest: Data? = { effectiveZip?.unzipFile("AndroidManifest.xml") }()
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/// Select zip-file depending on `.apk` or `.apkm` extension
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private lazy var effectiveZip: ZipFile? = { isApkm ? nestedZip : mainZip }()
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/// `.apkm` may contain multiple `.apk` files. (plus "icon.png" and "info.json" files)
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private lazy var nestedZip: ZipFile? = {
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if isApkm, let pth = try? mainZip.unzipFileToTempDir("base.apk") {
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return ZipFile(pth)
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}
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return nil
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}()
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/// Shared instance for resolving resources
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private lazy var resourceParser: Tbl_Parser? = {
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guard let data = effectiveZip?.unzipFile("resources.arsc"),
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let xml = try? AndroidXML.init(data: data), xml.type == .Table else {
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return nil
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}
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return xml.parseTable()
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}()
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/// Lookup app bundle name / label
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mutating func resolveName(_ name: inout String?) {
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if let val = name, let ref = try? TblTableRef(val), let parser = resourceParser {
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name = parser.getName(ref)
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}
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}
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/// Lookup image path and image data
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mutating func resolveIcon(_ iconRef: inout String?) -> Data? {
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if let val = iconRef, let ref = try? TblTableRef(val), let parser = resourceParser {
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if let iconPath = parser.getIconDirect(ref) ?? parser.getIconIndirect(ref) {
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iconRef = iconPath
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return effectiveZip?.unzipFile(iconPath)
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}
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}
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return nil
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}
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}
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private extension Tbl_Parser {
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func getName(_ ref: TblTableRef) -> String? {
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// why the heck are these even allowed?
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// apparently there can be references onto references
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var ref = ref
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while let res = try? self.getResource(ref) {
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guard let val = res.entries.first?.entry.value else {
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return nil
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}
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switch val.dataType {
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case .Reference: ref = val.asTableRef // and continue
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case .String: return val.resolve(self.stringPool)
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default: return nil
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}
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}
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return nil
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}
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/// Lookup resource with matching id. Choose the icon with the highest density.
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func getIconDirect(_ ref: TblTableRef) -> String? {
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guard let res = try? self.getResource(ref) else {
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return nil
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}
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var best: ResValue? = nil
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var bestScore: UInt16 = 0
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for e in res.entries {
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switch e.config.screenType.density {
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case .Default, .any, .None: continue
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case let density:
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if density.rawValue > bestScore, let val = e.entry.value {
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bestScore = density.rawValue
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best = val
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}
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}
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}
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return best?.resolve(self.stringPool)
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}
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/// Iterate over all entries and choose best-rated icon file.
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/// Rating prefers files which have an attribute name `"app_icon"` or `"ic_launcher"`.
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func getIconIndirect(_ ref: TblTableRef) -> String? {
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// sadly we cannot just `getResource()` because that can point to an app banner
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guard let pkg = try? self.getPackage(ref.package),
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var pool = pkg.stringPool(for: .Keys),
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let (_, types) = try? pkg.getType(ref.type) else {
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return nil
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}
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// density is 120-640
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let rates: [String: UInt16] = [
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"app_icon": 1000,
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"ic_launcher": 800,
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"ic_launcher_foreground": 200,
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]
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var best: ResValue? = nil
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var bestScore: UInt16 = 0
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for typ in types {
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switch typ.config.screenType.density {
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case .any, .None: continue
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case let density:
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try? typ.iterValues {
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if let val = $1.value {
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let attrName = pool.getStringCached($1.key)
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let score = density.rawValue + (rates[attrName] ?? 0)
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if score > bestScore {
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bestScore = score
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best = val
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}
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}
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}
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}
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}
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return best?.resolve(self.stringPool)
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}
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}
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@@ -1,288 +0,0 @@
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import Foundation
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import AndroidXML
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import os // OSLog
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private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "ApkManifest")
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/// Representation of `AndroidManifest.xml`.
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/// See: <https://developer.android.com/guide/topics/manifest/manifest-element>
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struct ApkManifest {
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var packageId: String? = nil
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var appName: String? = nil
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var appIcon: String? = nil
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/// Computed property
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var appIconData: Data? = nil
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var versionName: String? = nil
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var versionCode: String? = nil
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var sdkVerMin: Int? = nil
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var sdkVerTarget: Int? = nil
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var featuresRequired: [String] = []
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var featuresOptional: [String] = []
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var permissions: [String] = []
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}
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// MARK: - Full Manifest
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extension MetaInfo {
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/// `(true, <nested-apk>)` -- if extension is `.apkm`.
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/// `(false, zipFile!)` -- if extension is `.apk`.
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private func effectiveApk() -> (Bool, ZipFile) {
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// .apkm may contain multiple .apk files. (plus "icon.png" and "info.json" files)
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if self.url.pathExtension.lowercased() == "apkm" {
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if let pth = try? zipFile!.unzipFileToTempDir("base.apk") {
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return (true, ZipFile(pth))
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}
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}
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// .apk (and derivatives) have their contents structured directly in zip
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return (false, zipFile!)
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}
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/// Extract `AndroidManifest.xml` and parse its content
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func readApkManifest() -> ApkManifest? {
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assert(type == .APK)
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let (isApkm, nestedZip) = effectiveApk()
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guard let data = nestedZip.unzipFile("AndroidManifest.xml") else {
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return nil
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}
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let storage = ApkXmlManifestParser()
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if let xml = try? AndroidXML.init(data: data) {
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let ALLOWED_TAGS = [ // keep in sync with `ApkXmlManifestParser`
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"manifest",
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"application",
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"uses-feature",
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"uses-permission",
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"uses-permission-sdk-23",
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"uses-sdk",
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]
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let parser = xml.parseXml()
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let ignore = XMLParser()
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try? parser.iterElements({ startTag, attributes in
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if ALLOWED_TAGS.contains(startTag) {
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storage.parser(ignore, didStartElement: startTag, namespaceURI: nil, qualifiedName: nil, attributes: try attributes.asDictStr())
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}
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}) { endTag in
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if ALLOWED_TAGS.contains(endTag) {
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storage.parser(ignore, didEndElement: endTag, namespaceURI: nil, qualifiedName: nil)
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}
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}
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} else {
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// fallback to xml-string parser
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let parser = XMLParser(data: data)
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parser.delegate = storage
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parser.parse()
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}
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var rv = storage.result
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// if apkm can load png, prefer that over xml-parsing
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if isApkm, let iconData = zipFile!.unzipFile("icon.png") {
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rv.appIcon = nil
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rv.appIconData = iconData
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}
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os_log(.debug, log: log, "[apk] resolving %{public}@", String(describing: rv))
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rv.resolve(nestedZip)
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os_log(.debug, log: log, "[apk] resolved name: \"%{public}@\" icon: %{public}@", rv.appName ?? "", rv.appIcon ?? "-")
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return rv
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}
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}
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|
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/// Wrapper to use same code for binary-xml and string-xml parsing
|
||||
private class ApkXmlManifestParser: NSObject, XMLParserDelegate {
|
||||
private var _scope: [String] = []
|
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var result = ApkManifest()
|
||||
|
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func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
|
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// keep in sync with ALLOWED_TAGS above
|
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switch elementName {
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case "manifest":
|
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if _scope == [] {
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result.packageId = attrs["package"] // "org.bundle.id"
|
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result.versionName = attrs["android:versionName"] // "7.62.3"
|
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result.versionCode = attrs["android:versionCode"] // "160700"
|
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// attrs["platformBuildVersionCode"] // "35"
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// attrs["platformBuildVersionName"] // "15"
|
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}
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case "application":
|
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if _scope == ["manifest"] {
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result.appName = attrs["android:label"] // @resource-ref
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result.appIcon = attrs["android:icon"] // @resource-ref
|
||||
}
|
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case "uses-permission", "uses-permission-sdk-23":
|
||||
// no "permission" because that will produce duplicates with "uses-permission"
|
||||
if _scope == ["manifest"], let name = attrs["android:name"] {
|
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result.permissions.append(name)
|
||||
}
|
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case "uses-feature":
|
||||
if _scope == ["manifest"], let name = attrs["android:name"] {
|
||||
if attrs["android:required"] == "false" {
|
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result.featuresOptional.append(name)
|
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} else {
|
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result.featuresRequired.append(name)
|
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}
|
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}
|
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case "uses-sdk":
|
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if _scope == ["manifest"] {
|
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result.sdkVerMin = Int(attrs["android:minSdkVersion"] ?? "1") // "21"
|
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result.sdkVerTarget = Int(attrs["android:targetSdkVersion"] ?? "-1") // "35"
|
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}
|
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default: break // ignore
|
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}
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_scope.append(elementName)
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}
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func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
|
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_scope.removeLast()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// MARK: - Icon only
|
||||
|
||||
extension MetaInfo {
|
||||
/// Same as `readApkManifest()` but only extract `appIcon`.
|
||||
func readApkIconOnly() -> ApkManifest? {
|
||||
assert(type == .APK)
|
||||
var rv = ApkManifest()
|
||||
let (isApkm, nestedZip) = effectiveApk()
|
||||
if isApkm, let iconData = zipFile!.unzipFile("icon.png") {
|
||||
rv.appIcon = "icon.png"
|
||||
rv.appIconData = iconData
|
||||
return rv
|
||||
}
|
||||
guard let data = nestedZip.unzipFile("AndroidManifest.xml") else {
|
||||
return nil
|
||||
}
|
||||
if let xml = try? AndroidXML.init(data: data) {
|
||||
let parser = xml.parseXml()
|
||||
try? parser.iterElements({ startTag, attributes in
|
||||
if startTag == "application" {
|
||||
rv.appIcon = try? attributes.get("android:icon")?.resolve(parser.stringPool)
|
||||
}
|
||||
}) {_ in}
|
||||
} else {
|
||||
// fallback to xml-string parser
|
||||
rv.appIcon = ApkXmlIconParser().run(data)
|
||||
}
|
||||
rv.resolve(nestedZip)
|
||||
return rv
|
||||
}
|
||||
}
|
||||
|
||||
/// Shorter form of `ApkXmlManifestParser` to only exctract the icon reference (used for Thumbnail Provider)
|
||||
private class ApkXmlIconParser: NSObject, XMLParserDelegate {
|
||||
var result: String? = nil
|
||||
|
||||
func run(_ data: Data) -> String? {
|
||||
let parser = XMLParser(data: data)
|
||||
parser.delegate = self
|
||||
parser.parse()
|
||||
return result
|
||||
}
|
||||
|
||||
func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
|
||||
if elementName == "application" {
|
||||
result = attrs["android:icon"]
|
||||
parser.abortParsing()
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
// MARK: - Resolve resource
|
||||
|
||||
private extension ApkManifest {
|
||||
/// Reuse `ZipFile` from previous call because that may be an already unpacked `base.apk`
|
||||
mutating func resolve(_ zip: ZipFile) {
|
||||
guard let data = zip.unzipFile("resources.arsc"),
|
||||
let xml = try? AndroidXML.init(data: data), xml.type == .Table else {
|
||||
return
|
||||
}
|
||||
|
||||
let parser = xml.parseTable()
|
||||
if let val = appName, let ref = try? TblTableRef(val) {
|
||||
appName = parser.getName(ref)
|
||||
}
|
||||
if let val = appIcon, let ref = try? TblTableRef(val) {
|
||||
if let iconPath = parser.getIconDirect(ref) ?? parser.getIconIndirect(ref) {
|
||||
appIcon = iconPath
|
||||
appIconData = zip.unzipFile(iconPath)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private extension Tbl_Parser {
|
||||
func getName(_ ref: TblTableRef) -> String? {
|
||||
// why the heck are these even allowed?
|
||||
// apparently there can be references onto references
|
||||
var ref = ref
|
||||
while let res = try? self.getResource(ref) {
|
||||
guard let val = res.entries.first?.entry.value else {
|
||||
return nil
|
||||
}
|
||||
switch val.dataType {
|
||||
case .Reference: ref = val.asTableRef // and continue
|
||||
case .String: return val.resolve(self.stringPool)
|
||||
default: return nil
|
||||
}
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
/// Lookup resource with matching id. Choose the icon with the highest density.
|
||||
func getIconDirect(_ ref: TblTableRef) -> String? {
|
||||
guard let res = try? self.getResource(ref) else {
|
||||
return nil
|
||||
}
|
||||
var best: ResValue? = nil
|
||||
var bestScore: UInt16 = 0
|
||||
for e in res.entries {
|
||||
switch e.config.screenType.density {
|
||||
case .Default, .any, .None: continue
|
||||
case let density:
|
||||
if density.rawValue > bestScore, let val = e.entry.value {
|
||||
bestScore = density.rawValue
|
||||
best = val
|
||||
}
|
||||
}
|
||||
}
|
||||
return best?.resolve(self.stringPool)
|
||||
}
|
||||
|
||||
/// Iterate over all entries and choose best-rated icon file.
|
||||
/// Rating prefers files which have an attribute name `"app_icon"` or `"ic_launcher"`.
|
||||
func getIconIndirect(_ ref: TblTableRef) -> String? {
|
||||
// sadly we cannot just `getResource()` because that can point to an app banner
|
||||
guard let pkg = try? self.getPackage(ref.package),
|
||||
var pool = pkg.stringPool(for: .Keys),
|
||||
let (_, types) = try? pkg.getType(ref.type) else {
|
||||
return nil
|
||||
}
|
||||
// density is 120-640
|
||||
let rates: [String: UInt16] = [
|
||||
"app_icon": 1000,
|
||||
"ic_launcher": 800,
|
||||
"ic_launcher_foreground": 200,
|
||||
]
|
||||
var best: ResValue? = nil
|
||||
var bestScore: UInt16 = 0
|
||||
for typ in types {
|
||||
switch typ.config.screenType.density {
|
||||
case .any, .None: continue
|
||||
case let density:
|
||||
try? typ.iterValues {
|
||||
if let val = $1.value {
|
||||
let attrName = pool.getStringCached($1.key)
|
||||
let score = density.rawValue + (rates[attrName] ?? 0)
|
||||
if score > bestScore {
|
||||
bestScore = score
|
||||
best = val
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return best?.resolve(self.stringPool)
|
||||
}
|
||||
}
|
||||
@@ -19,13 +19,13 @@ struct AppIcon {
|
||||
case .IPA, .Archive, .Extension:
|
||||
extractImage(from: meta.readPlist_Icon()?.filenames)
|
||||
case .APK:
|
||||
extractImage(from: meta.readApkIconOnly())
|
||||
extractImage(from: meta.readApk_Icon())
|
||||
}
|
||||
}
|
||||
|
||||
/// Extract image from Android app bundle.
|
||||
func extractImage(from manifest: ApkManifest?) -> NSImage {
|
||||
if let data = manifest?.appIconData, let img = NSImage(data: data) {
|
||||
func extractImage(from apkIcon: Apk_Icon?) -> NSImage {
|
||||
if let data = apkIcon?.data, let img = NSImage(data: data) {
|
||||
return img
|
||||
}
|
||||
return defaultIcon()
|
||||
|
||||
@@ -20,7 +20,7 @@ extension PreviewGenerator {
|
||||
}
|
||||
|
||||
/// Process info stored in `AndroidManifest.xml`
|
||||
mutating func procAppInfoAndroid(_ manifest: ApkManifest) {
|
||||
mutating func procAppInfoAndroid(_ manifest: Apk_Manifest) {
|
||||
let featReq = manifest.featuresRequired
|
||||
let featOpt = manifest.featuresOptional
|
||||
let perms = manifest.permissions
|
||||
|
||||
@@ -44,12 +44,12 @@ struct PreviewGenerator {
|
||||
data["AppIcon"] = AppIcon(meta).extractImage(from: plistApp.icons).withRoundCorners().asBase64()
|
||||
|
||||
case .APK:
|
||||
guard let manifest = meta.readApkManifest() else {
|
||||
guard let manifest = meta.readApk_Manifest() else {
|
||||
throw RuntimeError("AndroidManifest.xml not found")
|
||||
}
|
||||
procAppInfoAndroid(manifest)
|
||||
// App Icon (last, because the image uses a lot of memory)
|
||||
data["AppIcon"] = AppIcon(meta).extractImage(from: manifest).withRoundCorners().asBase64()
|
||||
data["AppIcon"] = AppIcon(meta).extractImage(from: manifest.icon).withRoundCorners().asBase64()
|
||||
}
|
||||
|
||||
data["QuickLookTitle"] = stringForFileType(meta)
|
||||
|
||||
Reference in New Issue
Block a user