Files
codeql/python/ql/test/library-tests/frameworks/flask/response_test.py
2021-06-24 17:34:43 +02:00

206 lines
10 KiB
Python

import json
from flask import Flask, make_response, jsonify, Response, request, redirect
app = Flask(__name__)
@app.route("/html1") # $routeSetup="/html1"
def html1(): # $requestHandler
return "<h1>hello</h1>" # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
@app.route("/html2") # $routeSetup="/html2"
def html2(): # $requestHandler
# note that response saved in a variable intentionally -- we wan the annotations to
# show that we recognize the response creation, and not the return (hopefully). (and
# do the same in the following of the file)
resp = make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/html3") # $routeSetup="/html3"
def html3(): # $requestHandler
resp = app.make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
# TODO: Create test-cases for the many ways that `make_response` can be used
# https://flask.palletsprojects.com/en/1.1.x/api/#flask.Flask.make_response
@app.route("/html4") # $routeSetup="/html4"
def html4(): # $requestHandler
resp = Response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/html5") # $routeSetup="/html5"
def html5(): # $requestHandler
# note: flask.Flask.response_class is set to `flask.Response` by default.
# it can be overridden, but we don't try to handle that right now.
resp = Flask.response_class("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/html6") # $routeSetup="/html6"
def html6(): # $requestHandler
# note: app.response_class (flask.Flask.response_class) is set to `flask.Response` by default.
# it can be overridden, but we don't try to handle that right now.
resp = app.response_class("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/html7") # $routeSetup="/html7"
def html7(): # $requestHandler
resp = make_response() # $HttpResponse mimetype=text/html
resp.set_data("<h1>hello</h1>") # $ MISSING: responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/jsonify") # $routeSetup="/jsonify"
def jsonify_route(): # $requestHandler
data = {"foo": "bar"}
resp = jsonify(data) # $ MISSING: HttpResponse mimetype=application/json responseBody=data
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
################################################################################
# Tricky return handling
################################################################################
@app.route("/tricky-return1") # $routeSetup="/tricky-return1"
def tricky_return1(): # $requestHandler
if "raw" in request.args:
resp = "<h1>hellu</h1>"
else:
resp = make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
return resp # $HttpResponse mimetype=text/html responseBody=resp
def helper():
if "raw" in request.args:
return "<h1>hellu</h1>"
else:
return make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
@app.route("/tricky-return2") # $routeSetup="/tricky-return2"
def tricky_return2(): # $requestHandler
resp = helper()
return resp # $HttpResponse mimetype=text/html responseBody=resp
################################################################################
# Setting content-type manually
################################################################################
@app.route("/content-type/response-modification1") # $routeSetup="/content-type/response-modification1"
def response_modification1(): # $requestHandler
resp = make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
resp.content_type = "text/plain" # $ MISSING: HttpResponse mimetype=text/plain
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/response-modification2") # $routeSetup="/content-type/response-modification2"
def response_modification2(): # $requestHandler
resp = make_response("<h1>hello</h1>") # $HttpResponse mimetype=text/html responseBody="<h1>hello</h1>"
resp.headers["content-type"] = "text/plain" # $ MISSING: HttpResponse mimetype=text/plain
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
# Exploration of mimetype/content_type/headers arguments to `app.response_class` -- things can get tricky
# see https://werkzeug.palletsprojects.com/en/1.0.x/wrappers/#werkzeug.wrappers.Response
@app.route("/content-type/Response1") # $routeSetup="/content-type/Response1"
def Response1(): # $requestHandler
resp = Response("<h1>hello</h1>", mimetype="text/plain") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Response2") # $routeSetup="/content-type/Response2"
def Response2(): # $requestHandler
resp = Response("<h1>hello</h1>", content_type="text/plain; charset=utf-8") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Response3") # $routeSetup="/content-type/Response3"
def Response3(): # $requestHandler
# content_type argument takes priority (and result is text/plain)
resp = Response("<h1>hello</h1>", content_type="text/plain; charset=utf-8", mimetype="text/html") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Response4") # $routeSetup="/content-type/Response4"
def Response4(): # $requestHandler
# note: capitalization of Content-Type does not matter
resp = Response("<h1>hello</h1>", headers={"Content-TYPE": "text/plain"}) # $HttpResponse responseBody="<h1>hello</h1>" SPURIOUS: mimetype=text/html MISSING: mimetype=text/plain
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Response5") # $routeSetup="/content-type/Response5"
def Response5(): # $requestHandler
# content_type argument takes priority (and result is text/plain)
# note: capitalization of Content-Type does not matter
resp = Response("<h1>hello</h1>", headers={"Content-TYPE": "text/html"}, content_type="text/plain; charset=utf-8") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Response6") # $routeSetup="/content-type/Response6"
def Response6(): # $requestHandler
# mimetype argument takes priority over header (and result is text/plain)
# note: capitalization of Content-Type does not matter
resp = Response("<h1>hello</h1>", headers={"Content-TYPE": "text/html"}, mimetype="text/plain") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/Flask-response-class") # $routeSetup="/content-type/Flask-response-class"
def Flask_response_class(): # $requestHandler
# note: flask.Flask.response_class is set to `flask.Response` by default.
# it can be overridden, but we don't try to handle that right now.
resp = Flask.response_class("<h1>hello</h1>", mimetype="text/plain") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
@app.route("/content-type/app-response-class") # $routeSetup="/content-type/app-response-class"
def app_response_class(): # $requestHandler
# note: app.response_class (flask.Flask.response_class) is set to `flask.Response` by default.
# it can be overridden, but we don't try to handle that right now.
resp = app.response_class("<h1>hello</h1>", mimetype="text/plain") # $HttpResponse mimetype=text/plain responseBody="<h1>hello</h1>"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
# TODO: add tests for setting status code
# TODO: add test that manually creates a redirect by setting status code and suitable header.
################################################################################
# Redirect
################################################################################
@app.route("/redirect-simple") # $routeSetup="/redirect-simple"
def redirect_simple(): # $requestHandler
next = request.args['next']
resp = redirect(next) # $ HttpResponse mimetype=text/html HttpRedirectResponse redirectLocation=next
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
################################################################################
# Cookies
################################################################################
@app.route("/setting_cookie") # $routeSetup="/setting_cookie"
def setting_cookie(): # $requestHandler
resp = make_response() # $ HttpResponse mimetype=text/html
resp.set_cookie("key", "value") # $ CookieWrite CookieName="key" CookieValue="value"
resp.set_cookie(key="key", value="value") # $ CookieWrite CookieName="key" CookieValue="value"
resp.headers.add("Set-Cookie", "key2=value2") # $ MISSING: CookieWrite CookieRawHeader="key2=value2"
resp.delete_cookie("key3") # $ CookieWrite CookieName="key3"
resp.delete_cookie(key="key3") # $ CookieWrite CookieName="key3"
return resp # $ SPURIOUS: HttpResponse mimetype=text/html responseBody=resp
################################################################################
if __name__ == "__main__":
app.run(debug=True)