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import uuid
from json.decoder import JSONDecodeError
from aiohttp import ClientSession, web
from injector import inject_to_tab
import helpers
class Utilities:
def __init__(self, context) -> None:
self.context = context
self.util_methods = {
"ping": self.ping,
"http_request": self.http_request,
"cancel_plugin_install": self.cancel_plugin_install,
"confirm_plugin_install": self.confirm_plugin_install,
"execute_in_tab": self.execute_in_tab,
"inject_css_into_tab": self.inject_css_into_tab,
"remove_css_from_tab": self.remove_css_from_tab
}
if context:
context.web_app.add_routes([
web.post("/methods/{method_name}", self._handle_server_method_call)
])
async def _handle_server_method_call(self, request):
method_name = request.match_info["method_name"]
try:
args = await request.json()
except JSONDecodeError:
args = {}
res = {}
try:
r = await self.util_methods[method_name](**args)
res["result"] = r
res["success"] = True
except Exception as e:
res["result"] = str(e)
res["success"] = False
return web.json_response(res)
async def confirm_plugin_install(self, request_id):
return await self.context.plugin_browser.confirm_plugin_install(request_id)
def cancel_plugin_install(self, request_id):
return self.context.plugin_browser.cancel_plugin_install(request_id)
async def http_request(self, method="", url="", **kwargs):
async with ClientSession() as web:
async with web.request(method, url, ssl=helpers.get_ssl_context(), **kwargs) as res:
return {
"status": res.status,
"headers": dict(res.headers),
"body": await res.text()
}
async def ping(self, **kwargs):
return "pong"
async def execute_in_tab(self, tab, run_async, code):
try:
result = await inject_to_tab(tab, code, run_async)
if "exceptionDetails" in result["result"]:
return {
"success": False,
"result": result["result"]
}
return {
"success": True,
"result" : result["result"]["result"].get("value")
}
except Exception as e:
return {
"success": False,
"result": e
}
async def inject_css_into_tab(self, tab, style):
try:
css_id = str(uuid.uuid4())
result = await inject_to_tab(tab,
f"""
(function() {{
const style = document.createElement('style');
style.id = "{css_id}";
document.head.append(style);
style.textContent = `{style}`;
}})()
""", False)
if "exceptionDetails" in result["result"]:
return {
"success": False,
"result": result["result"]
}
return {
"success": True,
"result" : css_id
}
except Exception as e:
return {
"success": False,
"result": e
}
async def remove_css_from_tab(self, tab, css_id):
try:
result = await inject_to_tab(tab,
f"""
(function() {{
let style = document.getElementById("{css_id}");
if (style.nodeName.toLowerCase() == 'style')
style.parentNode.removeChild(style);
}})()
""", False)
if "exceptionDetails" in result["result"]:
return {
"success": False,
"result": result
}
return {
"success": True
}
except Exception as e:
return {
"success": False,
"result": e
}
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