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Use a local server to serve Extension files
File scheme is not reliable due to security restriction.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| // Browser APIs will be implement in front-end |
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app/src/main/java/org/matrix/chromext/extension/LocalFiles.kt
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| @@ -0,0 +1,93 @@ | ||
| package org.matrix.chromext.extension | ||
|
|
||
| import java.io.File | ||
| import java.io.FileReader | ||
| import java.net.ServerSocket | ||
| import java.net.Socket | ||
| import java.net.URLConnection | ||
| import kotlin.concurrent.thread | ||
| import org.json.JSONObject | ||
| import org.matrix.chromext.Chrome | ||
| import org.matrix.chromext.utils.Log | ||
|
|
||
| object LocalFiles { | ||
|
|
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| private val directory: File | ||
| private val extensions = mutableMapOf<String, JSONObject>() | ||
| val script: String | ||
|
|
||
| init { | ||
| val ctx = Chrome.getContext() | ||
| directory = File(ctx.getExternalFilesDir(null), "Extension") | ||
| script = ctx.assets.open("extension.js").bufferedReader().use { it.readText() } | ||
| if (!directory.exists()) directory.mkdirs() | ||
| directory.listFiles()?.forEach { | ||
| val path = it.name | ||
| val manifest = File(it, "manifest.json") | ||
| if (manifest.exists()) { | ||
| val json = FileReader(manifest).use { it.readText() } | ||
| runCatching { extensions.put(path, JSONObject(json)) } | ||
| } | ||
| } | ||
| } | ||
|
|
||
| private fun serveFiles(path: String, connection: Socket) { | ||
| runCatching { | ||
| Log.d(path + "is requested") | ||
| val request = | ||
| String(connection.inputStream.readNBytes(DEFAULT_BUFFER_SIZE / 16)) | ||
| .split("\r\n")[0] | ||
| .split(" ") | ||
| if (request[0] == "GET" && request[2] == "HTTP/1.1") { | ||
| val name = request[1] | ||
| val file = File(path + name) | ||
| if (file.exists()) { | ||
| val data = file.readBytes() | ||
| val type = URLConnection.guessContentTypeFromName(name) ?: "text/plain" | ||
| val response = | ||
| arrayOf( | ||
| "HTTP/1.1 200", | ||
| "Content-Length: ${data.size}", | ||
| "Content-Type: ${type}", | ||
| "Access-Control-Allow-Origin: *") | ||
| connection.outputStream.write( | ||
| (response.joinToString("\r\n") + "\r\n\r\n").toByteArray()) | ||
| connection.outputStream.write(data) | ||
| } else { | ||
| connection.outputStream.write("HTTP/1.1 404 Not Found\r\n\r\n".toByteArray()) | ||
| } | ||
| connection.close() | ||
| } | ||
| } | ||
| .onFailure { Log.ex(it) } | ||
| } | ||
|
|
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| private fun startServer(name: String) { | ||
| if (extensions.containsKey(name) && !extensions.get(name)!!.has("port")) { | ||
| val server = ServerSocket() | ||
| server.bind(null) | ||
| thread { | ||
| runCatching { | ||
| while (true) { | ||
| val socket = server.accept() | ||
| serveFiles(directory.toString() + "/" + name, socket) | ||
| } | ||
| } | ||
| .onFailure { | ||
| Log.ex(it) | ||
| server.close() | ||
| if (extensions.get(name)?.optInt("port") == server.getLocalPort()) { | ||
| extensions.get(name)!!.remove("port") | ||
| } | ||
| } | ||
| } | ||
| extensions.get(name)!!.put("port", server.getLocalPort()) | ||
| } | ||
| } | ||
|
|
||
| fun start(): JSONObject { | ||
| extensions.keys.forEach { startServer(it) } | ||
| val info = JSONObject(extensions as Map<String, JSONObject>) | ||
| return JSONObject().put("detail", JSONObject(mapOf("type" to "init", "manifest" to info))) | ||
| } | ||
| } |
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