contentdb/app/blueprints/tasks/__init__.py

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# ContentDB
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# Copyright (C) 2018-21 rubenwardy
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#
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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from flask import Blueprint, jsonify, url_for, request, redirect, render_template
from flask_login import login_required, current_user
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from app import csrf
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from app.models import UserRank
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from app.tasks import celery
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from app.tasks.importtasks import get_meta
from app.utils import should_return_json
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bp = Blueprint("tasks", __name__)
@csrf.exempt
@bp.route("/tasks/getmeta/new/", methods=["POST"])
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@login_required
def start_getmeta():
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from flask import request
author = request.args.get("author")
author = current_user.forums_username if author is None else author
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aresult = get_meta.delay(request.args.get("url"), author)
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return jsonify({
"poll_url": url_for("tasks.check", id=aresult.id),
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})
@bp.route("/tasks/<id>/")
def check(id):
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result = celery.AsyncResult(id)
status = result.status
traceback = result.traceback
result = result.result
if isinstance(result, Exception):
info = {
'id': id,
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'status': status,
}
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if current_user.is_authenticated and current_user.rank.at_least(UserRank.ADMIN):
info["error"] = str(traceback)
elif str(result)[1:12] == "TaskError: ":
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if hasattr(result, "value"):
info["error"] = result.value
else:
info["error"] = str(result)
else:
info["error"] = "Unknown server error"
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else:
info = {
'id': id,
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'status': status,
'result': result,
}
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if should_return_json():
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return jsonify(info)
else:
r = request.args.get("r")
if r is not None and status == "SUCCESS":
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return redirect(r)
else:
return render_template("tasks/view.html", info=info)