From 9ec7d6fe8cfcf4ca69a89e938374456facae803a Mon Sep 17 00:00:00 2001
From: Clemens Klug <clemens.klug@uni-bamberg.de>
Date: Wed, 17 Oct 2018 16:45:35 +0200
Subject: [PATCH] Initialer Commit

---
 Dockerfile           | 10 ++++++
 docker-compose.yml   |  6 ++++
 src/config.json      | 28 +++++++++++++++
 src/requirements.txt |  2 ++
 src/spammer.py       | 81 ++++++++++++++++++++++++++++++++++++++++++++
 src/templates.py     | 76 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 203 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 docker-compose.yml
 create mode 100644 src/config.json
 create mode 100644 src/requirements.txt
 create mode 100644 src/spammer.py
 create mode 100644 src/templates.py

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..df6520a
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,10 @@
+FROM alpine:3.8
+ADD src /app
+RUN apk add --update --no-cache python3 && \
+	pip3 --no-cache-dir install -r /app/requirements.txt && \
+	adduser -D app
+USER app
+EXPOSE 5000
+ENV FLASK_APP=spammer.py
+WORKDIR /app
+CMD ["flask", "run", "-h", "0.0.0.0"]
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
new file mode 100644
index 0000000..2d61382
--- /dev/null
+++ b/docker-compose.yml
@@ -0,0 +1,6 @@
+version: "3"
+
+services:
+ rzspam:
+  build: .
+  image: docker.wiai.de/fswiai/rzspam:0.1
\ No newline at end of file
diff --git a/src/config.json b/src/config.json
new file mode 100644
index 0000000..1f93272
--- /dev/null
+++ b/src/config.json
@@ -0,0 +1,28 @@
+{
+	"placeholders": {
+		"port": {
+			"type": "text",
+			"desc": "Portnummer/Dienst"
+		},
+		"raum": {
+			"desc": "Raumnummer"
+		},
+		"wlan": {
+			"type": "text",
+			"desc": "Wlan-name",
+			"default": "eduroam"
+		},
+		"anzahl": {
+			"type": "number",
+			"desc": "Anzahl"
+		}
+	},
+	"RZ": {
+		"mail": "fachschaft.wiai@uni-bamberg.de",
+		"templates": {
+			"Portsperre": "liebes RZ, Port {port} ist zu. das ist doof :(",
+			"WLAN": "hallo RZ, in Raum {raum} funkt das WLAN {wlan} nicht. das ist doof :(",
+			"test": "ich bin ein test mit einer zahl: {anzahl}"
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/requirements.txt b/src/requirements.txt
new file mode 100644
index 0000000..b090c5a
--- /dev/null
+++ b/src/requirements.txt
@@ -0,0 +1,2 @@
+Flask==1.0.2
+Flask-Mail==0.9.1
\ No newline at end of file
diff --git a/src/spammer.py b/src/spammer.py
new file mode 100644
index 0000000..a57cb89
--- /dev/null
+++ b/src/spammer.py
@@ -0,0 +1,81 @@
+import json
+from collections import namedtuple
+from string import Formatter
+
+from flask import Flask
+from flask import request
+from flask_mail import Mail, Message
+
+import templates
+
+Placeholder = namedtuple("Placeholder", ["name", "type", "desc", "default"])
+
+def load_config(conf="config.json"):
+	config = json.load(open(conf))
+	placeholders = []
+	for i in config["placeholders"]:
+		p_h = config["placeholders"][i]
+		p = Placeholder(
+			name=i,
+			type=p_h.get("type", "text"),
+			desc=p_h["desc"],
+			default=p_h.get("default"))
+		placeholders.append(p)
+	config.pop("placeholders")
+	flat = {}
+	for org in config:
+		target = config[org]
+		templates = []
+		for issue_name in target["templates"]:
+			text = target["templates"][issue_name]
+			fields = [name for _, name, _, _ in Formatter().parse(text)]
+			flat[f"{org}: {issue_name}"] = {
+				"org": org,
+				"name": issue_name,
+				"mail": config[org]["mail"],
+				"text": text,
+				"placeholders": [i._asdict() for i in placeholders if i.name in fields]
+			}
+	return flat
+
+MAIL_SERVER = "smtp.uni-bamberg.de"
+MAIL_PORT = 587
+#TESTING=True
+#MAIL_USE_TLS=True
+#MAIL_USE_SSL=True
+MAIL_DEBUG=True
+
+app = Flask(__name__)
+app.config.from_object(__name__)
+
+
+
+mail = Mail(app)
+
+issues = load_config()
+
+@app.route("/")
+def index():
+	return templates.format_index(issues)
+
+@app.route("/send", methods=["POST"])
+def send():
+	if all([field in request.form for field in ("text", "sender", "target")]):
+		text = request.form["text"]
+		print("all fields present")
+		fields = [name for _, name, _, _ in Formatter().parse(text)]
+		if None in fields:
+			fields.remove(None)
+		if all([field in request.form for field in fields]):
+			values = {field: request.form[field] for field in fields}
+			text = text.format(**values)
+			sender = request.form["sender"]
+			recipients = [request.form["target"]]
+			msg = Message("Störungsmeldung", body=text, sender=sender, recipients=recipients)
+			print(msg)
+			return str(mail.send(msg))
+		print([(field,field in request.form) for field in fields])
+		return "2"
+	print([(field,field in request.form) for field in ("text", "sender", "target")])
+	print(request.form)
+	return "1"
\ No newline at end of file
diff --git a/src/templates.py b/src/templates.py
new file mode 100644
index 0000000..f6ed084
--- /dev/null
+++ b/src/templates.py
@@ -0,0 +1,76 @@
+import json
+BASE = """<!doctype html>
+<html>
+<head>
+<title>spammer</title>
+<script>
+function selection() {
+	var x = document.getElementById("issue").value;
+	var data = JSON.parse(x)
+	console.log(data);
+	var textarea = document.getElementById("text");
+	var emailfield = document.getElementById("sender");
+	textarea.value = data.text;
+	textarea.readOnly = false;
+	emailfield.readOnly = false;
+	var placeholders = document.getElementById("placeholders");
+	placeholders.innerHTML = "";
+	var target = document.createElement("input");
+	target.setAttribute("name", "target");
+	target.setAttribute("value", data.mail);
+	target.setAttribute("hidden", "true");
+	placeholders.appendChild(target);
+	for (i in data.placeholders) {
+		var placeholder = data.placeholders[i];
+		var x = document.createElement("input");
+		x.setAttribute("type", placeholder.type);
+		x.setAttribute("placeholder", placeholder.desc);
+		x.setAttribute("name", placeholder.name);
+		x.setAttribute("id", placeholder.name);
+		x.setAttribute("required", "true");
+		if (placeholder.default !== null){
+			x.setAttribute("value", placeholder.default);
+		}
+		var y = document.createElement("label");
+		y.setAttribute("for", placeholder.name);
+		y.innerHTML = placeholder.desc;
+		var z = document.createElement("p");
+		z.appendChild(y);
+		z.appendChild(x);
+		placeholders.appendChild(z);
+	}
+}
+</script>
+</head>
+<body>
+"""
+
+INDEX = """<h1>Welcome</h1>
+<p>choose an issue, fill the placeholders, enter your uni-mail, then hit send</p>
+
+<form action="send" method="post">
+<p>
+	<select name="issue" required onchange="selection()" id="issue">
+	<option selected disabled="true">---</option>
+	{issues}
+	</select>
+</p>
+<p><textarea id="text" readonly required name="text"></textarea></p>
+<p>
+	<label for="sender">absender:</label>
+	<input type="email" required="true" name="sender" id="sender" placeholder="sender email" readonly>
+</p>
+<div id="placeholders" ></div>
+<input type="submit">
+</form>
+"""
+
+def format_page(body):
+	return BASE + str(body) + "</body>\n</html>"
+
+def format_index(issues):
+	html = ""
+	for issue in issues:
+		html+=f"<option value='{json.dumps(issues[issue])}'>{issue}</option>\n"
+	index = INDEX.format(issues=html)
+	return format_page(index)
\ No newline at end of file