Files
release11-tools/Backend-libXML/main.py

120 lines
3.7 KiB
Python

from flask import Flask
from flask_cors import CORS
from flask import request
from lxml import etree
import json
import time
import Parser
app = Flask(__name__)
CORS(app)
cors = CORS(app, resource={
r"/*":{
"origins":"*"
}
})
def format_xml(request: request, type: str) -> str:
"""Function to format XML
:param request: Received request
:param type: Type of needed processing: xsd, xslt or xpath
:raises ValueError: is raised when type is different than those provided above
:return: response JSON converted to string and response code
"""
start = time.time_ns()
code = 200
response_json = dict()
try:
request_data = json.loads(request.get_data(as_text=True))
data = request_data['data']
process = request_data['process']
if (type == "prettify"):
response_json['result'] = Parser.xsd(data, process)
elif (type == "minimize"):
response_json['result'] = Parser.xslt(data, process)
else:
raise ValueError("Valid operation types are: prettify, minimize")
response_json['status'] = "OK"
except KeyError as e:
response_json['result'] = "Missing key: " + str(e)
response_json['status'] = "ERR"
code = 400
except Exception as e:
response_json['result'] = str(e)
response_json['status'] = "ERR"
code = 400
finally:
exec_time = (time.time_ns() - start) / 10**6
response_json['time'] = f"{exec_time:.03f}"
response_json['processor'] = "libxml2 over lxml"
return json.dumps(response_json), code
def process_xml(request: request, type: str) -> str:
"""Function to process
:param request: Received request
:param type: Type of needed processing: xsd, xslt or xpath
:raises ValueError: is raised when type is different than those provided above
:return: response JSON converted to string and response code
"""
start = time.time_ns()
code = 200
response_json = dict()
try:
request_data = json.loads(request.get_data(as_text=True))
data = request_data['data']
process = request_data['process']
if (type == "xsd"):
response_json['result'] = Parser.xsd(data, process)
elif (type == "xslt"):
response_json['result'] = Parser.xslt(data, process)
elif (type == "xpath"):
response_json['result'] = Parser.xpath(data, process)
elif (type == "prettify"):
response_json['result'] = Parser.prettify(data)
elif (type == "minimize"):
response_json['result'] = Parser.minimize(data)
else:
raise ValueError("Valid operation types are: xsd, xslt, xpath")
response_json['status'] = "OK"
except KeyError as e:
response_json['result'] = "Missing key: " + str(e)
response_json['status'] = "ERR"
code = 400
except Exception as e:
response_json['result'] = str(e)
response_json['status'] = "ERR"
code = 400
finally:
exec_time = (time.time_ns() - start) / 10**6
response_json['time'] = f"{exec_time:.03f}"
response_json['processor'] = "libxml2 over lxml"
return json.dumps(response_json), code
@app.route("/xpathpost", methods=["POST"])
def xpath():
return process_xml(request, "xpath")
@app.route("/xsdpost", methods=["POST"])
def xsd():
return process_xml(request, "xsd")
@app.route("/xsltpost", methods=["POST"])
def xslt():
return process_xml(request, "xslt")
@app.route("/prettifypost", methods=["POST"])
def prettify():
return process_xml(request, "prettify")
@app.route("/minimizepost", methods=["POST"])
def minimize():
return process_xml(request, "minimize")
if __name__ == "__main__":
app.run()