From d54a95e0f9c689f2bbaaea90a3a16a855a408823 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <koszko@koszko.org>
Date: Wed, 17 Aug 2022 13:50:34 +0200
Subject: allow loading packages from zip files through web UI and listing
 installed mappings

---
 src/hydrilla/proxy/web_ui/packages.py | 89 ++++++++++++++++++++++++++++++++++-
 1 file changed, 87 insertions(+), 2 deletions(-)

(limited to 'src/hydrilla/proxy/web_ui/packages.py')

diff --git a/src/hydrilla/proxy/web_ui/packages.py b/src/hydrilla/proxy/web_ui/packages.py
index 7d67b63..a618ca0 100644
--- a/src/hydrilla/proxy/web_ui/packages.py
+++ b/src/hydrilla/proxy/web_ui/packages.py
@@ -31,14 +31,99 @@
 # Enable using with Python 3.7.
 from __future__ import annotations
 
+import tempfile
+import zipfile
 import typing as t
 
+from urllib.parse import urlparse
+from pathlib import Path
+
 import flask
+import werkzeug
+
+from ...exceptions import HaketiloException
+from ...translations import smart_gettext as _
+from .. import state as st
+from . import _app
+
+
+class InvalidUploadedMalcontent(HaketiloException):
+    def __init__(self):
+        super().__init__(_('err.proxy.uploaded_malcontent_invalid'))
 
 
 bp = flask.Blueprint('load_packages', __package__)
 
-@bp.route('/packages/load_from_disk')
-def load_from_disk() -> flask.Response:
+@bp.route('/packages/load_from_disk', methods=['GET'])
+def load_from_disk_get() -> flask.Response:
     html = flask.render_template('packages__load_from_disk.html.jinja')
     return flask.make_response(html, 200)
+
+@bp.route('/packages/load_from_disk', methods=['POST'])
+def load_from_disk_post() -> werkzeug.Response:
+    parsed_url = urlparse(flask.request.referrer)
+    if parsed_url.netloc != 'hkt.mitm.it':
+        return load_from_disk_get()
+
+    zip_file_storage = flask.request.files.get('packages_zipfile')
+    if zip_file_storage is None:
+        return load_from_disk_get()
+
+    with tempfile.TemporaryDirectory() as tmpdir_str:
+        tmpdir = Path(tmpdir_str)
+        tmpdir_child = tmpdir / 'childdir'
+        tmpdir_child.mkdir()
+
+        try:
+            with zipfile.ZipFile(zip_file_storage) as zip_file:
+                zip_file.extractall(tmpdir_child)
+        except:
+            raise HaketiloException(_('err.proxy.uploaded_file_not_zip'))
+
+        extracted_top_level_files = tuple(tmpdir_child.iterdir())
+        if extracted_top_level_files == ():
+            raise InvalidUploadedMalcontent()
+
+        if len(extracted_top_level_files) == 1 and \
+           extracted_top_level_files[0].is_dir():
+            malcontent_dir_path = extracted_top_level_files[0]
+        else:
+            malcontent_dir_path = tmpdir_child
+
+        state = t.cast(_app.WebUIApp, flask.current_app)._haketilo_state
+
+        try:
+            state.import_packages(malcontent_dir_path)
+        except:
+            raise InvalidUploadedMalcontent()
+
+    return flask.redirect(flask.url_for('.packages'))
+
+@bp.route('/packages')
+def packages() -> flask.Response:
+    state = t.cast(_app.WebUIApp, flask.current_app)._haketilo_state
+
+    display_infos = state.mapping_version_store().get_display_infos()
+    sorted_infos  = sorted(display_infos, key=(lambda di: di.info))
+
+    html = flask.render_template(
+        'packages.html.jinja',
+        display_infos = sorted_infos
+    )
+    return flask.make_response(html, 200)
+
+@bp.route('/packages/view/<string:mapping_id>')
+def show_package(mapping_id: str) -> flask.Response:
+    state = t.cast(_app.WebUIApp, flask.current_app)._haketilo_state
+
+    try:
+        store = state.mapping_version_store()
+        display_info = store.get(mapping_id).get_display_info()
+
+        html = flask.render_template(
+            'packages__show_single.html.jinja',
+            display_info = display_info
+        )
+        return flask.make_response(html, 200)
+    except st.MissingItemError:
+        flask.abort(404)
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