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# Full imports
import json
# Partial imports
from aiohttp import ClientSession, web
from asyncio import get_event_loop, sleep
from concurrent.futures import ProcessPoolExecutor
from hashlib import sha256
from io import BytesIO
from logging import getLogger
from os import R_OK, W_OK, path, rename, listdir, access, mkdir
from shutil import rmtree
from subprocess import call
from time import time
from zipfile import ZipFile
# Local modules
from helpers import get_ssl_context, get_user, get_user_group, download_remote_binary_to_path
from injector import get_tab, inject_to_tab
logger = getLogger("Browser")
class PluginInstallContext:
def __init__(self, artifact, name, version, hash) -> None:
self.artifact = artifact
self.name = name
self.version = version
self.hash = hash
class PluginBrowser:
def __init__(self, plugin_path, plugins, loader) -> None:
self.plugin_path = plugin_path
self.plugins = plugins
self.loader = loader
self.install_requests = {}
def _unzip_to_plugin_dir(self, zip, name, hash):
zip_hash = sha256(zip.getbuffer()).hexdigest()
if hash and (zip_hash != hash):
return False
zip_file = ZipFile(zip)
zip_file.extractall(self.plugin_path)
plugin_dir = self.find_plugin_folder(name)
code_chown = call(["chown", "-R", get_user()+":"+get_user_group(), plugin_dir])
code_chmod = call(["chmod", "-R", "555", plugin_dir])
if code_chown != 0 or code_chmod != 0:
logger.error(f"chown/chmod exited with a non-zero exit code (chown: {code_chown}, chmod: {code_chmod})")
return False
return True
async def _download_remote_binaries_for_plugin_with_name(self, pluginBasePath):
rv = False
try:
packageJsonPath = path.join(pluginBasePath, 'package.json')
pluginBinPath = path.join(pluginBasePath, 'bin')
if access(packageJsonPath, R_OK):
with open(packageJsonPath, 'r') as f:
packageJson = json.load(f)
if len(packageJson["remote_binary"]) > 0:
# create bin directory if needed.
rc=call(["chmod", "-R", "777", pluginBasePath])
if access(pluginBasePath, W_OK):
if not path.exists(pluginBinPath):
mkdir(pluginBinPath)
if not access(pluginBinPath, W_OK):
rc=call(["chmod", "-R", "777", pluginBinPath])
rv = True
for remoteBinary in packageJson["remote_binary"]:
# Required Fields. If any Remote Binary is missing these fail the install.
binName = remoteBinary["name"]
binURL = remoteBinary["url"]
binHash = remoteBinary["sha256hash"]
if not await download_remote_binary_to_path(binURL, binHash, path.join(pluginBinPath, binName)):
rv = False
raise Exception(f"Error Downloading Remote Binary {binName}@{binURL} with hash {binHash} to {path.join(pluginBinPath, binName)}")
code_chown = call(["chown", "-R", get_user()+":"+get_user_group(), self.plugin_path])
rc=call(["chmod", "-R", "555", pluginBasePath])
else:
rv = True
logger.debug(f"No Remote Binaries to Download")
except Exception as e:
rv = False
logger.debug(str(e))
return rv
def find_plugin_folder(self, name):
for folder in listdir(self.plugin_path):
try:
with open(path.join(self.plugin_path, folder, 'plugin.json'), 'r') as f:
plugin = json.load(f)
if plugin['name'] == name:
return path.join(self.plugin_path, folder)
except:
logger.debug(f"skipping {folder}")
async def uninstall_plugin(self, name):
if self.loader.watcher:
self.loader.watcher.disabled = True
tab = await get_tab("SP")
try:
logger.info("uninstalling " + name)
logger.info(" at dir " + self.find_plugin_folder(name))
logger.debug("unloading %s" % str(name))
await tab.evaluate_js(f"DeckyPluginLoader.unloadPlugin('{name}')")
if self.plugins[name]:
self.plugins[name].stop()
del self.plugins[name]
logger.debug("removing files %s" % str(name))
rmtree(self.find_plugin_folder(name))
except FileNotFoundError:
logger.warning(f"Plugin {name} not installed, skipping uninstallation")
except Exception as e:
logger.error(f"Plugin {name} in {self.find_plugin_folder(name)} was not uninstalled")
logger.error(f"Error at %s", exc_info=e)
if self.loader.watcher:
self.loader.watcher.disabled = False
async def _install(self, artifact, name, version, hash):
if self.loader.watcher:
self.loader.watcher.disabled = True
try:
await self.uninstall_plugin(name)
except:
logger.error(f"Plugin {name} not installed, skipping uninstallation")
logger.info(f"Installing {name} (Version: {version})")
async with ClientSession() as client:
logger.debug(f"Fetching {artifact}")
res = await client.get(artifact, ssl=get_ssl_context())
if res.status == 200:
logger.debug("Got 200. Reading...")
data = await res.read()
logger.debug(f"Read {len(data)} bytes")
res_zip = BytesIO(data)
logger.debug("Unzipping...")
ret = self._unzip_to_plugin_dir(res_zip, name, hash)
if ret:
plugin_dir = self.find_plugin_folder(name)
ret = await self._download_remote_binaries_for_plugin_with_name(plugin_dir)
if ret:
logger.info(f"Installed {name} (Version: {version})")
if name in self.loader.plugins:
self.loader.plugins[name].stop()
self.loader.plugins.pop(name, None)
await sleep(1)
self.loader.import_plugin(path.join(plugin_dir, "main.py"), plugin_dir)
# await inject_to_tab("SP", "window.syncDeckyPlugins()")
else:
logger.fatal(f"Failed Downloading Remote Binaries")
else:
self.log.fatal(f"SHA-256 Mismatch!!!! {name} (Version: {version})")
if self.loader.watcher:
self.loader.watcher.disabled = False
else:
logger.fatal(f"Could not fetch from URL. {await res.text()}")
async def request_plugin_install(self, artifact, name, version, hash):
request_id = str(time())
self.install_requests[request_id] = PluginInstallContext(artifact, name, version, hash)
tab = await get_tab("SP")
await tab.open_websocket()
await tab.evaluate_js(f"DeckyPluginLoader.addPluginInstallPrompt('{name}', '{version}', '{request_id}', '{hash}')")
async def confirm_plugin_install(self, request_id):
request = self.install_requests.pop(request_id)
await self._install(request.artifact, request.name, request.version, request.hash)
def cancel_plugin_install(self, request_id):
self.install_requests.pop(request_id)
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