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path: root/pathod/app.py
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import logging
import pprint
import cStringIO
import copy
from flask import Flask, jsonify, render_template, request, abort, make_response
from . import version, language, utils
from netlib.http import user_agents

logging.basicConfig(level="DEBUG")
EXAMPLE_HOST = "example.com"
EXAMPLE_WEBSOCKET_KEY = "examplekey"

# pylint: disable=unused-variable


def make_app(noapi, debug):
    app = Flask(__name__)
    app.debug = debug

    if not noapi:
        @app.route('/api/info')
        def api_info():
            return jsonify(
                version=version.IVERSION
            )

    @app.route('/api/log')
    def api_log():
        return jsonify(
            log=app.config["pathod"].get_log()
        )

    @app.route('/api/clear_log')
    def api_clear_log():
        app.config["pathod"].clear_log()
        return "OK"

    def render(s, cacheable, **kwargs):
        kwargs["noapi"] = app.config["pathod"].noapi
        kwargs["nocraft"] = app.config["pathod"].nocraft
        kwargs["craftanchor"] = app.config["pathod"].craftanchor
        resp = make_response(render_template(s, **kwargs), 200)
        if cacheable:
            resp.headers["Cache-control"] = "public, max-age=4320"
        return resp

    @app.route('/')
    @app.route('/index.html')
    def index():
        return render(
            "index.html",
            True,
            section="main",
            version=version.VERSION
        )

    @app.route('/download')
    @app.route('/download.html')
    def download():
        return render(
            "download.html", True, section="download", version=version.VERSION
        )

    @app.route('/about')
    @app.route('/about.html')
    def about():
        return render("about.html", True, section="about")

    @app.route('/docs/pathod')
    def docs_pathod():
        return render(
            "docs_pathod.html", True, section="docs", subsection="pathod"
        )

    @app.route('/docs/language')
    def docs_language():
        return render(
            "docs_lang.html", True,
            section="docs", uastrings=user_agents.UASTRINGS,
            subsection="lang"
        )

    @app.route('/docs/pathoc')
    def docs_pathoc():
        return render(
            "docs_pathoc.html", True, section="docs", subsection="pathoc"
        )

    @app.route('/docs/lib_pathod')
    def docs_lib_pathod():
        return render(
            "docs_lib_pathod.html", True, section="docs", subsection="pathod"
        )

    @app.route('/docs/test')
    def docs_test():
        return render(
            "docs_test.html", True, section="docs", subsection="test"
        )

    @app.route('/log')
    def log():
        if app.config["pathod"].noapi:
            abort(404)
        return render(
            "log.html",
            False,
            section="log",
            log=app.config["pathod"].get_log()
        )

    @app.route('/log/<int:lid>')
    def onelog(lid):
        item = app.config["pathod"].log_by_id(int(lid))
        if not item:
            abort(404)
        l = pprint.pformat(item)
        return render("onelog.html", False, section="log", alog=l, lid=lid)

    def _preview(is_request):
        if is_request:
            template = "request_preview.html"
        else:
            template = "response_preview.html"

        spec = request.args["spec"]

        args = dict(
            spec=spec,
            section="main",
            syntaxerror=None,
            error=None,
        )
        if not spec.strip():
            args["error"] = "Can't parse an empty spec."
            return render(template, False, **args)

        try:
            if is_request:
                r = language.parse_pathoc(spec).next()
            else:
                r = language.parse_pathod(spec).next()
        except language.ParseException as v:
            args["syntaxerror"] = str(v)
            args["marked"] = v.marked()
            return render(template, False, **args)

        s = cStringIO.StringIO()

        settings = copy.copy(app.config["pathod"].settings)
        settings.request_host = EXAMPLE_HOST
        settings.websocket_key = EXAMPLE_WEBSOCKET_KEY

        safe = r.preview_safe()
        err, safe = app.config["pathod"].check_policy(
            safe,
            settings
        )
        if err:
            args["error"] = err
            return render(template, False, **args)
        if is_request:
            settings.request_host = EXAMPLE_HOST
            language.serve(safe, s, settings)
        else:
            settings.websocket_key = EXAMPLE_WEBSOCKET_KEY
            language.serve(safe, s, settings)

        args["output"] = utils.escape_unprintables(s.getvalue())
        return render(template, False, **args)

    @app.route('/response_preview')
    def response_preview():
        return _preview(False)

    @app.route('/request_preview')
    def request_preview():
        return _preview(True)
    return app