(マストドン2.4.2以降)http,https以外のスキーマのリンクに対応した

app/build.gradle

@@ -12,8 +12,8 @@ android {
         minSdkVersion 21
         targetSdkVersion 27
 
-        versionCode 257
-        versionName "2.5.7"
+        versionCode 258
+        versionName "2.5.8"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
 
         // https://stackoverflow.com/questions/47791227/java-lang-illegalstateexception-dex-archives-setting-dex-extension-only-for

app/src/main/java/jp/juggler/subwaytooter/App1.kt

@@ -508,7 +508,7 @@ class App1 : Application() {
 		// Chrome Custom Tab を開く
 		fun openCustomTab(activity : Activity, url : String) {
 			try {
-				if(Pref.bpPriorChrome(pref)) {
+				if(url.startsWith("http") && Pref.bpPriorChrome(pref)) {
 					try {
 						// 初回はChrome指定で試す
 						val builder = CustomTabsIntent.Builder()
@@ -539,7 +539,17 @@ class App1 : Application() {
 				customTabsIntent.launchUrl(activity, Uri.parse(url))
 			} catch(ex : Throwable) {
 				log.trace(ex)
-				showToast(activity, false, "can't open browser app")
+				val scheme = try{
+					Uri.parse(url).scheme
+				}catch(_:Throwable){
+					url
+				}
+				showToast(
+					activity,
+					true,
+					"can't open browser app for %s",scheme
+					
+				)
 			}
 			
 		}

app/src/main/java/jp/juggler/subwaytooter/util/HTMLDecoder.kt

@@ -387,6 +387,8 @@ object HTMLDecoder {
 			}
 		}
 		
+		private val reNormalLink = Pattern.compile("\\A\\w+://")
+		
 		private fun encodeUrl(
 			options : DecodeOptions,
 			display_url : String,
@@ -398,7 +400,10 @@ object HTMLDecoder {
 				return display_url
 			}
 			
-			if(! display_url.startsWith("http")) {
+			// 通常リンクはhttp,httpsだけでなく幾つかのスキーマ名が含まれる
+			// スキーマ名の直後には必ず :// が出現する
+			// https://github.com/tootsuite/mastodon/pull/7810
+			if(! reNormalLink.matcher(display_url).find() ) {
 				if(display_url.startsWith("@") && href != null && Pref.bpMentionFullAcct(App1.pref)) {
 					// メンションをfull acct にする
 					val m = TootAccount.reAccountUrl.matcher(href)
@@ -410,8 +415,6 @@ object HTMLDecoder {
 				return display_url
 			}
 			
-			
-			
 			if(options.isMediaAttachment(href)) {
 				val sb = SpannableStringBuilder()
 				sb.append(href)
@@ -429,6 +432,10 @@ object HTMLDecoder {
 			try {
 				val uri = Uri.parse(display_url)
 				val sb = StringBuilder()
+				if(! display_url.startsWith("http")){
+					sb.append(uri.scheme)
+					sb.append("://")
+				}
 				sb.append(uri.authority)
 				val a = uri.encodedPath
 				val q = uri.encodedQuery