strike this weird CHATMAIL_DOMAIN variable

This expands the character set used for passwords generated for new
accounts.  The set it taken from the set used by the pass tool.  The
special characters is the full GNU grep [:punct:] set.

README.md

@@ -15,8 +15,8 @@ after which the initially specified password is required for using them.
 
 ## Deploying your own chatmail server 
 
-We subsequently use `CHATMAIL_DOMAIN` as a placeholder for your fully qualified 
-DNS domain name (FQDN), for example `chat.example.org`.
+We use `chat.example.org` as the chatmail domain in the following steps. 
+Please substitute it with your own domain. 
 
 1. Install the `cmdeploy` command in a virtualenv
 
@@ -25,19 +25,19 @@ DNS domain name (FQDN), for example `chat.example.org`.
     cd chatmail
     scripts/initenv.sh
    ```
-  
+
 2. Create chatmail configuration file `chatmail.ini`:
 
    ```
-    scripts/cmdeploy init CHATMAIL_DOMAIN
+    scripts/cmdeploy init chat.example.org  # <-- use your domain 
    ```
 
-3. Setup first DNS records for your `CHATMAIL_DOMAIN`,
+3. Setup first DNS records for your chatmail domain, 
    according to the hints provided by `cmdeploy init`.
    Verify that SSH root login works:
 
    ```
-        ssh root@CHATMAIL_DOMAIN
+    ssh root@chat.example.org   # <-- use your domain 
    ```
 
 4. Deploy to the remote chatmail server:
@@ -75,7 +75,7 @@ scripts/cmdeploy bench
 
 ## Overview of this repository
 
-This repository drives the development of "chatmail instances",
+This repository drives the development of chatmail services, 
 comprised of minimal setups of
 
 - [postfix smtp server](https://www.postfix.org)
@@ -91,7 +91,7 @@ as well as custom services that are integrated with these two:
   to send mails for them.
 
 - `chatmaild/src/chatmaild/filtermail.py` prevents
-  unencrypted e-mail from leaving the chatmail instance
+  unencrypted e-mail from leaving the chatmail service
   and is integrated into postfix's outbound mail pipelines.
 
 There is also the `cmdeploy/src/cmdeploy/cmdeploy.py` command line tool
@@ -104,7 +104,7 @@ to automatically install all chatmail components on a server.
 ### Home page and getting started for users
 
 `cmdeploy run` also creates default static Web pages and deploys them
-to an nginx web server under `https://CHATMAIL_DOMAIN`.
+to a nginx web server with: 
 
 - a default `index.html` along with a QR code that users can click to
   create accounts on your chatmail provider,

chatmaild/pyproject.toml

@@ -8,6 +8,8 @@ version = "0.2"
 dependencies = [
   "aiosmtpd",
   "iniconfig",
+  "deltachat-rpc-server",
+  "deltachat-rpc-client",
 ]
 
 [tool.setuptools]
@@ -19,6 +21,7 @@ where = ['src']
 [project.scripts]
 doveauth = "chatmaild.doveauth:main"
 filtermail = "chatmaild.filtermail:main"
+echobot = "chatmaild.echo:main"
 
 [project.entry-points.pytest11]
 "chatmaild.testplugin" = "chatmaild.tests.plugin"

chatmaild/src/chatmaild/doveauth.py

@@ -46,13 +46,14 @@ def is_allowed_to_create(config: Config, user, cleartext_password) -> bool:
         len(localpart) > config.username_max_length
         or len(localpart) < config.username_min_length
     ):
-        logging.warning(
-            "localpart %s has to be between %s and %s chars long",
-            localpart,
-            config.username_min_length,
-            config.username_max_length,
-        )
-        return False
+        if localpart != "echo":
+            logging.warning(
+                "localpart %s has to be between %s and %s chars long",
+                localpart,
+                config.username_min_length,
+                config.username_max_length,
+            )
+            return False
 
     return True
 

chatmaild/src/chatmaild/echo.py

@@ -0,0 +1,88 @@
+#!/usr/bin/env python3
+"""Advanced echo bot example.
+
+it will echo back any message that has non-empty text and also supports the /help command.
+"""
+import logging
+import os
+import sys
+from threading import Thread
+
+from deltachat_rpc_client import Bot, DeltaChat, EventType, Rpc, events
+
+from chatmaild.newemail import create_newemail_dict
+from chatmaild.config import read_config
+
+hooks = events.HookCollection()
+
+
+@hooks.on(events.RawEvent)
+def log_event(event):
+    if event.kind == EventType.INFO:
+        logging.info(event.msg)
+    elif event.kind == EventType.WARNING:
+        logging.warning(event.msg)
+
+
+@hooks.on(events.RawEvent(EventType.ERROR))
+def log_error(event):
+    logging.error(event.msg)
+
+
+@hooks.on(events.MemberListChanged)
+def on_memberlist_changed(event):
+    logging.info(
+        "member %s was %s", event.member, "added" if event.member_added else "removed"
+    )
+
+
+@hooks.on(events.GroupImageChanged)
+def on_group_image_changed(event):
+    logging.info("group image %s", "deleted" if event.image_deleted else "changed")
+
+
+@hooks.on(events.GroupNameChanged)
+def on_group_name_changed(event):
+    logging.info("group name changed, old name: %s", event.old_name)
+
+
+@hooks.on(events.NewMessage(func=lambda e: not e.command))
+def echo(event):
+    snapshot = event.message_snapshot
+    if snapshot.text or snapshot.file:
+        snapshot.chat.send_message(text=snapshot.text, file=snapshot.file)
+
+
+@hooks.on(events.NewMessage(command="/help"))
+def help_command(event):
+    snapshot = event.message_snapshot
+    snapshot.chat.send_text("Send me any message and I will echo it back")
+
+
+def main():
+    path = os.environ.get("PATH")
+    venv_path = sys.argv[0].strip("echobot")
+    os.environ["PATH"] = path + ":" + venv_path
+    with Rpc() as rpc:
+        deltachat = DeltaChat(rpc)
+        system_info = deltachat.get_system_info()
+        logging.info("Running deltachat core %s", system_info.deltachat_core_version)
+
+        accounts = deltachat.get_all_accounts()
+        account = accounts[0] if accounts else deltachat.add_account()
+
+        bot = Bot(account, hooks)
+        if not bot.is_configured():
+            config = read_config(sys.argv[1])
+            password = create_newemail_dict(config).get("password")
+            email = "echo@" + config.mail_domain
+            configure_thread = Thread(
+                target=bot.configure, kwargs={"email": email, "password": password}
+            )
+            configure_thread.start()
+        bot.run_forever()
+
+
+if __name__ == "__main__":
+    logging.basicConfig(level=logging.INFO)
+    main()

chatmaild/src/chatmaild/echobot.service.f

@@ -0,0 +1,11 @@
+[Unit]
+Description=Chatmail echo bot for testing it works
+
+[Service]
+ExecStart={execpath} {config_path}
+Environment="PATH={remote_venv_dir}:$PATH"
+Restart=always
+RestartSec=30
+
+[Install]
+WantedBy=multi-user.target

chatmaild/src/chatmaild/newemail.py

@@ -4,16 +4,22 @@
 
 import json
 import random
+import secrets
+import string
 
 from chatmaild.config import read_config, Config
 
 CONFIG_PATH = "/usr/local/lib/chatmaild/chatmail.ini"
+ALPHANUMERIC = string.ascii_lowercase + string.digits
+ALPHANUMERIC_PUNCT = string.ascii_letters + string.digits + string.punctuation
 
 
 def create_newemail_dict(config: Config):
-    alphanumeric = "abcdefghijklmnopqrstuvwxyz1234567890"
-    user = "".join(random.choices(alphanumeric, k=config.username_min_length))
-    password = "".join(random.choices(alphanumeric, k=config.password_min_length + 3))
+    user = "".join(random.choices(ALPHANUMERIC, k=config.username_min_length))
+    password = "".join(
+        secrets.choice(ALPHANUMERIC_PUNCT)
+        for _ in range(config.password_min_length + 3)
+    )
     return dict(email=f"{user}@{config.mail_domain}", password=f"{password}")
 
 

cmdeploy/src/cmdeploy/__init__.py

@@ -88,10 +88,12 @@ def _install_remote_venv_with_chatmaild(config) -> None:
     for fn in (
         "doveauth",
         "filtermail",
+        "echobot",
     ):
         params = dict(
             execpath=f"{remote_venv_dir}/bin/{fn}",
             config_path=remote_chatmail_inipath,
+            remote_venv_dir=remote_venv_dir,
         )
         source_path = importlib.resources.files("chatmaild").joinpath(f"{fn}.service.f")
         content = source_path.read_text().format(**params).encode()

www/src/index.md

@@ -14,7 +14,6 @@ Welcome to instant, interoperable and [privacy-preserving](privacy.html) messagi
 
 💬 **Start** chatting with any Delta Chat contacts using [QR invite codes](https://delta.chat/en/help#howtoe2ee)
 
-<div class="experimental">Note: this is an experimental service</div>
-
-
-
+{% if config.mail_domain != "nine.testrun.org" %}
+<div class="experimental">Note: this is only a temporary development chatmail service</div>
+{% endif %}

www/src/privacy.md

@@ -62,7 +62,7 @@ we process the following data and details:
 Creating an account happens in one of two ways on our mail servers: 
 
 - with a QR invitation token 
-  which is scanned using the DeltaChat app
+  which is scanned using the Delta Chat app
   and then the account is created.
 
 - by letting Delta Chat otherwise create an account