From 2e1562fb02e7a2b45e84c0b8d861d149bfa890d2 Mon Sep 17 00:00:00 2001
From: Christian Poessinger <christian@poessinger.com>
Date: Sat, 4 Apr 2020 11:08:50 +0200
Subject: wwan: T1988: move Jinja2 templates to data/templates folder

This makes the actual code which generates the configs much more human
readable.
---
 src/conf_mode/interfaces-wirelessmodem.py | 90 +++++--------------------------
 1 file changed, 14 insertions(+), 76 deletions(-)

(limited to 'src/conf_mode/interfaces-wirelessmodem.py')

diff --git a/src/conf_mode/interfaces-wirelessmodem.py b/src/conf_mode/interfaces-wirelessmodem.py
index e9c3ad55b..bfefa5dd1 100755
--- a/src/conf_mode/interfaces-wirelessmodem.py
+++ b/src/conf_mode/interfaces-wirelessmodem.py
@@ -18,84 +18,15 @@ import os
 
 from sys import exit
 from copy import deepcopy
-from jinja2 import Template
+from jinja2 import FileSystemLoader, Environment
 from subprocess import Popen, PIPE
 from netifaces import interfaces
 
 from vyos.config import Config
 from vyos.util import chown_file, chmod_x_file
+from vyos.defaults import directories as vyos_data_dir
 from vyos import ConfigError
 
-# Please be careful if you edit the template.
-config_wwan_tmpl = """### Autogenerated by interfaces-wirelessmodem.py ###
-{% if description %}
-# {{ description }}
-{% endif %}
-ifname {{ intf }}
-ipparam "{{ intf }} {{ metric }}"
-linkname {{ intf }}
-{% if name_server -%}
-usepeerdns
-{%- endif %}
-# physical device
-/dev/{{ device }}
-lcp-echo-failure 0
-115200
-debug
-logfile {{ logfile }}
-nodefaultroute
-ipcp-max-failure 4
-ipcp-accept-local
-ipcp-accept-remote
-noauth
-crtscts
-lock
-persist
-{% if on_demand -%}
-demand
-{%- endif %}
-
-connect '/usr/sbin/chat -v -t6 -f {{ chat_script }}'
-
-"""
-
-# Please be careful if you edit the template.
-chat_wwan_tmpl = """
-ABORT 'NO DIAL TONE' ABORT 'NO ANSWER' ABORT 'NO CARRIER' ABORT DELAYED
-'' AT
-OK ATZ
-OK 'AT+CGDCONT=1,"IP","{{ apn }}"'
-OK ATD*99#
-CONNECT ''
-
-"""
-
-script_wwan_ippreup_tmpl = """#!/bin/sh
-# As WWAN is an "on demand" interface we need to re-configure it when it
-# becomes 'up'
-
-ipparam=$6
-
-# device name and metric are received using ipparam
-device=`echo "$ipparam"|awk '{ print $1 }'`
-
-if [ "$device" != "{{ intf }}" ]; then
-    exit
-fi
-
-# add some info to syslog
-DIALER_PID=$(cat /var/run/{{ intf }}.pid)
-logger -t pppd[$DIALER_PID] "executing $0"
-
-echo "{{ description }}" > /sys/class/net/{{ intf }}/ifalias
-
-{% if vrf -%}
-logger -t pppd[$DIALER_PID] "configuring interface {{ intf }} for VRF {{ vrf }}"
-ip link set dev {{ intf }} master {{ vrf }}
-{% endif %}
-
-"""
-
 default_config_data = {
     'address': [],
     'apn': '',
@@ -206,10 +137,17 @@ def verify(wwan):
     return None
 
 def generate(wwan):
+    # Prepare Jinja2 template loader from files
+    tmpl_path = os.path.join(vyos_data_dir["data"], "templates", "wwan")
+    fs_loader = FileSystemLoader(tmpl_path)
+    env = Environment(loader=fs_loader)
+
+    # set up configuration file path variables where our templates will be
+    # rendered into
     intf = wwan['intf']
     config_wwan = f'/etc/ppp/peers/{intf}'
     config_wwan_chat = wwan['chat_script']
-    script_wwan_pre_up = f'/etc/ppp/ip-pre-up.d/1010-vyos-vrf-{intf}'
+    script_wwan_pre_up = f'/etc/ppp/ip-pre-up.d/1010-vyos-wwan-{intf}'
 
     config_files = [config_wwan, config_wwan_chat, script_wwan_pre_up]
 
@@ -231,19 +169,19 @@ def generate(wwan):
 
     else:
         # Create PPP configuration files
-        tmpl = Template(config_wwan_tmpl)
+        tmpl = env.get_template('peer.tmpl')
         config_text = tmpl.render(wwan)
         with open(config_wwan, 'w') as f:
             f.write(config_text)
 
         # Create PPP chat script
-        tmpl = Template(chat_wwan_tmpl)
+        tmpl = env.get_template('chat.tmpl')
         config_text = tmpl.render(wwan)
         with open(config_wwan_chat, 'w') as f:
             f.write(config_text)
 
-        # Create ip-pre-up script
-        tmpl = Template(script_wwan_ippreup_tmpl)
+        # Create script for ip-pre-up.d
+        tmpl = env.get_template('ip-pre-up.script.tmpl')
         config_text = tmpl.render(wwan)
         with open(script_wwan_pre_up, 'w') as f:
             f.write(config_text)
-- 
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