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Assets/UniWebView/Editor/AndroidManifest.cs

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+using System.Xml;
+using System.Collections;
+using System.Text;
+using System.IO;
+
+internal class UniWebViewAndroidXmlDocument : XmlDocument {
+    private string path;
+    protected XmlNamespaceManager nameSpaceManager;
+    public readonly string AndroidXmlNamespace = "http://schemas.android.com/apk/res/android";
+
+    public UniWebViewAndroidXmlDocument(string path) {
+        this.path = path;
+        using (var reader = new XmlTextReader(path)) {
+            reader.Read();
+            Load(reader);
+        }
+        nameSpaceManager = new XmlNamespaceManager(NameTable);
+        nameSpaceManager.AddNamespace("android", AndroidXmlNamespace);
+    }
+
+    public string Save() {
+        return SaveAs(path);
+    }
+
+    public string SaveAs(string path) {
+        using (var writer = new XmlTextWriter(path, new UTF8Encoding(false))) {
+            writer.Formatting = Formatting.Indented;
+            Save(writer);
+        }
+        return path;
+    }
+}
+
+internal class UniWebViewAndroidManifest : UniWebViewAndroidXmlDocument {
+    private readonly XmlElement ManifestElement;
+    private readonly XmlElement ApplicationElement;
+
+    public UniWebViewAndroidManifest(string path) : base(path) {
+        ManifestElement = SelectSingleNode("/manifest") as XmlElement;
+        ApplicationElement = SelectSingleNode("/manifest/application") as XmlElement;
+    }
+
+    private XmlAttribute CreateAndroidAttribute(string key, string value) {
+        XmlAttribute attr = CreateAttribute("android", key, AndroidXmlNamespace);
+        attr.Value = value;
+        return attr;
+    }
+
+    internal XmlNode GetActivityWithLaunchIntent() {
+        return
+            SelectSingleNode(
+                "/manifest/application/activity[intent-filter/action/@android:name='android.intent.action.MAIN' and "
+                + "intent-filter/category/@android:name='android.intent.category.LAUNCHER']",
+                nameSpaceManager);
+    }
+
+    internal bool SetUsesCleartextTraffic() {
+        bool changed = false;
+        if (ApplicationElement.GetAttribute("usesCleartextTraffic", AndroidXmlNamespace) != "true") {
+            ApplicationElement.SetAttribute("usesCleartextTraffic", AndroidXmlNamespace, "true");
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool SetHardwareAccelerated() {
+        bool changed = false;
+        var activity = GetActivityWithLaunchIntent() as XmlElement;
+        if (activity.GetAttribute("hardwareAccelerated", AndroidXmlNamespace) != "true") {
+            activity.SetAttribute("hardwareAccelerated", AndroidXmlNamespace, "true");
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddCameraPermission() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.CAMERA']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.CAMERA"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-feature[@android:name='android.hardware.camera']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-feature");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.hardware.camera"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddMicrophonePermission() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.MICROPHONE']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.MICROPHONE"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        if (SelectNodes("/manifest/uses-feature[@android:name='android.hardware.microphone']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-feature");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.hardware.microphone"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddReadExternalStoragePermission() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.READ_EXTERNAL_STORAGE']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.READ_EXTERNAL_STORAGE"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddWriteExternalStoragePermission() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.WRITE_EXTERNAL_STORAGE']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.WRITE_EXTERNAL_STORAGE"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+
+    internal bool AddAccessFineLocationPermission() {
+        bool changed = false;
+        if (SelectNodes("/manifest/uses-permission[@android:name='android.permission.ACCESS_FINE_LOCATION']", nameSpaceManager).Count == 0) {
+            var elem = CreateElement("uses-permission");
+            elem.Attributes.Append(CreateAndroidAttribute("name", "android.permission.ACCESS_FINE_LOCATION"));
+            ManifestElement.AppendChild(elem);
+            changed = true;
+        }
+        return changed;
+    }
+}