From acae6acb07fb1ce4a93424fc707e5c80774cab21 Mon Sep 17 00:00:00 2001
From: Ryan Cavicchioni <ryan@cavi.cc>
Date: Mon, 20 Apr 2020 22:25:07 -0500
Subject: [PATCH] add craftbukkit role

---
 roles/craftbukkit/defaults/main.yaml          |  22 ++++
 roles/craftbukkit/files/discord.py            | 119 ++++++++++++++++++
 roles/craftbukkit/handlers/main.yaml          |  11 ++
 roles/craftbukkit/tasks/main.yaml             | 119 ++++++++++++++++++
 .../templates/craftbukkit.service.j2          |  19 +++
 .../templates/rsyslog/craftbukkit.conf.j2     |  11 ++
 .../templates/server.properties.j2            |  47 +++++++
 7 files changed, 348 insertions(+)
 create mode 100644 roles/craftbukkit/defaults/main.yaml
 create mode 100644 roles/craftbukkit/files/discord.py
 create mode 100644 roles/craftbukkit/handlers/main.yaml
 create mode 100644 roles/craftbukkit/tasks/main.yaml
 create mode 100644 roles/craftbukkit/templates/craftbukkit.service.j2
 create mode 100644 roles/craftbukkit/templates/rsyslog/craftbukkit.conf.j2
 create mode 100644 roles/craftbukkit/templates/server.properties.j2

diff --git a/roles/craftbukkit/defaults/main.yaml b/roles/craftbukkit/defaults/main.yaml
new file mode 100644
index 0000000..aa60551
--- /dev/null
+++ b/roles/craftbukkit/defaults/main.yaml
@@ -0,0 +1,22 @@
+---
+craftbukkit_java_package_name: openjdk-8-jre-headless
+craftbukkit_java_package_state: present
+
+craftbukkit_version: 1.15.2
+craftbukkit_jar: "craftbukkit-{{ craftbukkit_version }}.jar"
+
+craftbukkit_service_name: craftbukkit.service
+craftbukkit_service_state: started
+craftbukkit_service_enabled: yes
+
+craftbukkit_port: 25565
+
+craftbukkit_user: craftbukkit
+craftbukkit_group: craftbukkit
+
+craftbukkit_opt_path: /opt/craftbukkit
+craftbukkit_var_path: /var/opt/craftbukkit
+
+craftbukkit_syslog_facility: local5
+
+craftbukkit_notifier_state: present
diff --git a/roles/craftbukkit/files/discord.py b/roles/craftbukkit/files/discord.py
new file mode 100644
index 0000000..1f9e574
--- /dev/null
+++ b/roles/craftbukkit/files/discord.py
@@ -0,0 +1,119 @@
+#!/usr/bin/env python
+
+from __future__ import print_function
+
+import sys
+import requests
+import re
+import argparse
+
+from urlparse import urljoin
+
+PATTERN = re.compile(r"(\S+) (joined|left) the game")
+
+PATTERNS = (
+    (re.compile(r": (\S+)\[.+logged in"), "{0} joined the game"),
+    (re.compile(r"(\S+) (joined|left) the game"), "{0} {1} the game"),
+    (re.compile(r"\[(\S+): Gave (\d+) \[(.+)\] to (\S+)\]"), "{0} gave {1} \"{2}\" to {3}"), 
+    (re.compile(r"(\S+) was (\S+) by (\S+)"), ":skull: {0} was {1} by {2}"),
+)
+
+
+def print_err(s):
+    print(s, file=sys.stderr)
+    sys.stderr.flush()
+
+
+def ok():
+    print("OK")
+    sys.stdout.flush()
+
+
+def cli_parse(args):
+    parser = argparse.ArgumentParser()
+    opt = parser.add_argument
+    opt("--config", "-c", dest="config", type=parse_kv_file)
+    opt("--confirm", action="store_const", dest="confirm", const=True, default=True)
+    opt("--no-confirm", action="store_const", dest="confirm", const=False)
+    opt("--verbose", "-v", action="store_true")
+    opt("--debug", "-d", action="store_true")
+    cli_args = parser.parse_args(args[1:])
+    return cli_args, parser
+
+
+def parse_kv_file(f, mode="r"):
+    if isinstance(f, str):
+        f = open(f, mode)
+
+    kv = {}
+    with f:
+        for line in f:
+            k, v = line.partition("=")[::2]
+            kv[k.strip().lower()] = v.strip()
+
+    return kv
+
+
+class DiscordHook:
+    def __init__(self, hook_id, hook_token):
+        url_path = "/".join([hook_id, hook_token])
+        url = urljoin("https://discordapp.com/api/webhooks/", url_path)
+        self.url = url
+
+    def send(self, content):
+        data = {"content": content}
+        r = requests.post(self.url, data=data)
+        r.raise_for_status()
+        return r
+
+
+def loop(handler, confirm=True):
+    if confirm:
+        ok()
+
+    while 1:
+        try:
+            line = sys.stdin.readline()
+        except KeyboardInterrupt:
+            print_err("\nreceived sigint, exiting")
+            break
+
+        if not line:
+            break
+
+        for pattern, fmt in PATTERNS:
+            match = pattern.search(line.strip())
+
+            if match:
+                message = fmt.format(*match.groups())
+
+                try:
+                    handler.send(message)
+                except Exception as e:
+                    print_err(e)
+                    continue
+
+        if confirm:
+            ok()
+
+
+def main(argv):
+    args, _ = cli_parse(argv)
+
+    if args.debug:
+        print("started with args {0}".format(vars(args)))
+
+    webhook_id = args.config.get("webhook_id")
+    webhook_token = args.config.get("webhook_token")
+
+    if webhook_id is None:
+        raise SystemExit("webhook_id is unset")
+    if webhook_token is None:
+        raise SystemExit("webhook_token is unset")
+
+    handler = DiscordHook(webhook_id, webhook_token)
+
+    return loop(handler, confirm=args.confirm)
+
+
+raise SystemExit(main(sys.argv))
diff --git a/roles/craftbukkit/handlers/main.yaml b/roles/craftbukkit/handlers/main.yaml
new file mode 100644
index 0000000..05c1614
--- /dev/null
+++ b/roles/craftbukkit/handlers/main.yaml
@@ -0,0 +1,11 @@
+---
+- name: craftbukkit daemon-reload
+  systemd:
+    name: "{{ craftbukkit_service_name }}"
+    daemon_reload: yes
+    state: restarted
+
+- name: restart craftbukkit
+  service:
+    name: "{{ craftbukkit_service_name }}"
+    state: restarted
diff --git a/roles/craftbukkit/tasks/main.yaml b/roles/craftbukkit/tasks/main.yaml
new file mode 100644
index 0000000..6c7f1ca
--- /dev/null
+++ b/roles/craftbukkit/tasks/main.yaml
@@ -0,0 +1,119 @@
+---
+- name: create craftbukkit group
+  group:
+    name: "{{ craftbukkit_group }}"
+    gid: "{{ craftbukkit_group_gid | default(omit) }}"
+    state: "{{ craftbukkit_group_state | default('present') }}"
+    system: yes
+
+- name: create craftbukkit user
+  user:
+    name: "{{ craftbukkit_user }}"
+    uid: "{{ craftbukkit_user_uid | default(omit) }}"
+    group: "{{ craftbukkit_group }}"
+    home: "{{ craftbukkit_var_path }}"
+    create_home: no
+    shell: "{{ craftbukkit_shell | default('/usr/sbin/nologin') }}"
+    state: "{{ craftbukkit_user_state | default('present') }}"
+    system: yes
+  
+- name: install java
+  package:
+    name: "{{ craftbukkit_java_package_name }}"
+    state: "{{ craftbukkit_java_package_state }}"
+
+- name: create craftbukkit installation directory
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: root
+    group: root
+    mode: "0755"
+  with_items:
+    - "{{ craftbukkit_opt_path }}"
+    - "{{ craftbukkit_opt_path }}/bin"
+    - "{{ craftbukkit_opt_path }}/etc"
+
+- name: create craftbukkit var directory
+  file:
+    path: "{{ craftbukkit_var_path }}"
+    state: directory
+    owner: "{{ craftbukkit_user }}"
+    group: "{{ craftbukkit_group }}"
+    mode: "0755"
+
+- name: "upload {{ craftbukkit_jar }}"
+  copy:
+    src: "files/craftbukkit/{{ craftbukkit_jar }}"
+    dest: "{{ craftbukkit_opt_path }}/bin/{{ craftbukkit_jar }}"
+    owner: "{{ craftbukkit_user }}"
+    group: "{{ craftbukkit_group }}"
+    mode: "0644"
+
+- name: agree to the eula
+  copy:
+    content: "eula=true"
+    dest: "{{ craftbukkit_var_path }}/eula.txt"
+    owner: "{{ craftbukkit_user }}"
+    group: "{{ craftbukkit_group }}"
+    mode: "0644"
+
+- name: configure server.properties
+  template:
+    src: server.properties.j2
+    dest: "{{ craftbukkit_var_path }}/server.properties"
+    owner: root
+    group: root
+    mode: 0644
+
+- name: configure systemd unit
+  template:
+    src: craftbukkit.service.j2
+    dest: /etc/systemd/system/craftbukkit.service
+    owner: root
+    group: root
+    mode: 0644
+  notify: craftbukkit daemon-reload
+
+- name: manage craftbukkit service
+  service:
+    name: "{{ craftbukkit_service_name }}"
+    state: "{{ craftbukkit_service_state }}"
+    enabled: "{{ craftbukkit_service_enabled }}"
+
+- name: install discord notifier
+  copy:
+    src: discord.py
+    dest: "{{ craftbukkit_opt_path }}/bin/craftbukkit-discord"
+    owner: root
+    group: root
+    mode: 0755
+  notify: restart rsyslog
+
+- name: configure discord notifier
+  copy:
+    dest: "{{ craftbukkit_opt_path }}/etc/discord.cfg"
+    owner: syslog
+    group: syslog
+    mode: 0600
+    content: "{% for k, v in craftbukkit_discord_config.items() %}{{ k }}={{ v }}{{ \"\n\" }}{% endfor %}"
+  notify: restart rsyslog
+
+- name: configure rsyslog program
+  template:
+    src: rsyslog/craftbukkit.conf.j2
+    dest: /etc/rsyslog.d/05-craftbukkit.conf
+    owner: root
+    group: root
+    mode: 0644
+  notify: restart rsyslog
+
+- name: manage rsyslog configuration
+  file:
+    path: "{{ item }}"
+    state: "{{ (craftbukkit_notifier_state == 'present') | ternary('file', 'absent') }}"
+  loop:
+    - /etc/rsyslog.d/05-craftbukkit.conf
+    - "{{ craftbukkit_opt_path }}/etc/discord.cfg"
+    - "{{ craftbukkit_opt_path }}/bin/craftbukkit-discord"
+  notify: restart rsyslog
diff --git a/roles/craftbukkit/templates/craftbukkit.service.j2 b/roles/craftbukkit/templates/craftbukkit.service.j2
new file mode 100644
index 0000000..6e9d2a0
--- /dev/null
+++ b/roles/craftbukkit/templates/craftbukkit.service.j2
@@ -0,0 +1,19 @@
+# {{ ansible_managed }}
+
+[Unit]
+Description=Craftbukkit server %i
+After=network.target
+
+[Service]
+ExecStart=/usr/bin/java -Xmx{{ craftbukkit_java_xmx | default('1024M') }} -Xms{{ craftbukkit_java_xms | default('1024M') }} -jar {{ craftbukkit_opt_path }}/bin/{{ craftbukkit_jar }} nogui
+SuccessExitStatus=143
+Type=simple
+User={{ craftbukkit_user }}
+Group={{ craftbukkit_group }}
+WorkingDirectory={{ craftbukkit_var_path }}/%i
+Restart=on-failure
+SyslogIdentifier=craftbukkit
+SyslogFacility={{ craftbukkit_syslog_facility }}
+
+[Install]
+WantedBy=multi-user.target
diff --git a/roles/craftbukkit/templates/rsyslog/craftbukkit.conf.j2 b/roles/craftbukkit/templates/rsyslog/craftbukkit.conf.j2
new file mode 100644
index 0000000..9cde2ac
--- /dev/null
+++ b/roles/craftbukkit/templates/rsyslog/craftbukkit.conf.j2
@@ -0,0 +1,11 @@
+# {{ ansible_managed }}
+
+module(load="omprog")
+
+if ( $programname == "craftbukkit" ) then {
+  action(
+    type="omprog"
+    binary="{{ craftbukkit_opt_path }}/bin/craftbukkit-discord --config {{ craftbukkit_opt_path }}/etc/discord.cfg"
+    confirmmessages="on"
+  )
+}
diff --git a/roles/craftbukkit/templates/server.properties.j2 b/roles/craftbukkit/templates/server.properties.j2
new file mode 100644
index 0000000..a9ccac0
--- /dev/null
+++ b/roles/craftbukkit/templates/server.properties.j2
@@ -0,0 +1,47 @@
+# {{ ansible_managed }}
+
+spawn-protection=16
+max-tick-time=60000
+query.port: {{ craftbukkit_port | default(25565) }}
+generator-settings=
+force-gamemode=false
+allow-nether=true
+enforce-whitelist: {{ (craftbukkit_config.enfoce_whitelist | default(true)) | ternary('true', 'false') }}
+gamemode=survival
+broadcast-console-to-ops=true
+enable-query=false
+player-idle-timeout=0
+difficulty=easy
+spawn-monsters=true
+broadcast-rcon-to-ops=true
+op-permission-level=4
+pvp=true
+snooper-enabled=true
+level-type=default
+hardcore=false
+enable-command-block=false
+max-players=20
+network-compression-threshold=256
+resource-pack-sha1=
+max-world-size=29999984
+function-permission-level=2
+rcon.port=25575
+server-port: {{ craftbukkit_port | default(25565) }}
+debug=false
+server-ip=
+spawn-npcs=true
+allow-flight=false
+level-name=world
+view-distance=10
+resource-pack=
+spawn-animals=true
+white-list: {{ (craftbukkit_config.whitelist | default(true)) | ternary('true', 'false') }}
+rcon.password=
+generate-structures=true
+max-build-height=256
+online-mode=true
+level-seed=
+use-native-transport=true
+prevent-proxy-connections=false
+enable-rcon=false
+motd=A Minecraft Server