Add alfred_leagcy_provider

It gets a list of pre-0.5.1 routers from netmon mysql db,
crawls them and sends the results to a (patched) alfred master.

contrib/alfred_legacy_provider/.gitignore

@@ -0,0 +1 @@
+macs.txt

contrib/alfred_legacy_provider/alfred_allow_setting_source_mac_via_unix_sock.patch

@@ -0,0 +1,29 @@
+From: Dominik Heidler <dominik@heidler.eu>
+Date: Mon, 29 Feb 2016 19:07:00 +0100
+Subject: [PATCH] Allow setting the source mac via unix sock
+
+The server will only overwrite the mac if it is zero.
+The alfred client sets the mac to zero by default
+so this shouldn't break existing behaviour.
+---
+ unix_sock.c |    4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/unix_sock.c b/unix_sock.c
+index 3c7e583..12a10e6 100644
+--- a/unix_sock.c
++++ b/unix_sock.c
+@@ -119,7 +119,9 @@ static int unix_sock_add_data(struct globals *globals,
+ 
+ 	data = push->data;
+ 	data_len = ntohs(data->header.length);
+-	memcpy(data->source, &interface->hwaddr, sizeof(interface->hwaddr));
++	static const char zero[ETH_ALEN] = { 0 };
++	if (!memcmp(zero, data->source, sizeof(data->source)))
++		memcpy(data->source, &interface->hwaddr, sizeof(interface->hwaddr));
+ 
+ 	if ((int)(data_len + sizeof(*data)) > len)
+ 		goto err;
+-- 
+1.7.10.4
+

contrib/alfred_legacy_provider/crawl.py

@@ -0,0 +1,49 @@
+#!/usr/bin/python3
+
+import sys
+import subprocess
+import re
+import pyalfred
+
+
+
+CONFIG = {
+        #"crawl_outgoing_netif": "br-mesh",
+	# this old system sucks
+        "crawl_outgoing_netif": "25%s" % open("/sys/class/net/br-mesh/ifindex").read().strip(),
+}
+
+def mac_to_ipv6_linklocal(mac):
+	# Remove the most common delimiters; dots, dashes, etc.
+	mac_bare = re.sub('[%s]+' % re.escape(' .:-'), '', mac)
+	mac_value = int(mac_bare, 16)
+
+	# Split out the bytes that slot into the IPv6 address
+	# XOR the most significant byte with 0x02, inverting the
+	# Universal / Local bit
+	high2 = mac_value >> 32 & 0xffff ^ 0x0200
+	high1 = mac_value >> 24 & 0xff
+	low1 = mac_value >> 16 & 0xff
+	low2 = mac_value & 0xffff
+
+	return 'fe80::{:04x}:{:02x}ff:fe{:02x}:{:04x}'.format(high2, high1, low1, low2)
+
+mac = sys.argv[1]
+fe80_ip = mac_to_ipv6_linklocal(mac)
+
+node_data = subprocess.check_output(["curl", "-s", "--max-time", "5", "-g", "http://[%s%%%s]/node.data" % (
+	fe80_ip,
+	CONFIG["crawl_outgoing_netif"]
+)])
+try:
+	node_data = gzip.decompress(node_data)
+except:
+	pass
+
+assert "<TITLE>404" not in str(node_data).upper()
+
+
+#print(node_data)
+
+ac = pyalfred.AlfredConnection()
+ac.send(64, node_data.decode("UTF-8", errors="replace"), mac, gzip_data=True)

contrib/alfred_legacy_provider/crawl_all.sh

@@ -0,0 +1,6 @@
+#!/bin/bash
+
+for mac in `cat /home/dominik/alfred_legacy_provider/macs.txt` ; do
+	echo "Crawling $mac"
+	/home/dominik/alfred_legacy_provider/crawl.py $mac
+done

contrib/alfred_legacy_provider/get_macs.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+/home/dominik/alfred_legacy_provider/list_old.sh 2>/dev/null | grep br-mesh | awk -F ' ' '{print $NF}' > /home/dominik/alfred_legacy_provider/macs.txt

contrib/alfred_legacy_provider/list_old.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+MYSQL_PWD="`grep mysql_password /var/www/netmon/config/config.local.inc.php | cut -d '"' -f 2`"
+mysql -u netmon -"p$MYSQL_PWD" netmon -e 'SELECT r.id, r.hostname, c.firmware_version, i.name, i.mac_addr FROM routers r JOIN crawl_routers c ON c.id = (SELECT MAX(id) FROM crawl_routers WHERE router_id = r.id) LEFT JOIN crawl_interfaces i ON i.id = (SELECT MAX(id) FROM crawl_interfaces WHERE router_id = r.id AND name = "br-mesh") WHERE c.status = "online" AND c.firmware_version <= "0.5.0" ORDER BY r.id;';

contrib/alfred_legacy_provider/run.sh

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+./get_macs.sh
+./crawl_all.sh

ffmap/web/templates/index.html

@@ -9,7 +9,9 @@
 			</div>
 			<div class="col-xs-8 col-sm-8"><p>
 				Monitoring f&uuml;r das Freifunk Franken Funknetzwerk.<br />
-				Hier werden nur Daten von Routern ab Firmware 0.5.1 angezeigt.<br />
+				Hier werden Daten von Routern ab Firmware 0.5.1 direkt angezeigt.<br />
+				Die alten Router werden &uuml;ber den <a href="https://github.com/asdil12/fff-monitoring/tree/master/contrib/alfred_legacy_provider">Alfred Legacy Provider</a> abgefragt,<br />
+				sodass sie ebenfalls hier angezeigt werden k&ouml;nnen.<br />
 				Der Quellcode für diese Webanwendung steht unter der GPL und kann <a href="https://github.com/asdil12/fff-monitoring">hier</a>
 				heruntergeladen werden.
 			</p></div>