Merge pull request #913 from Cyclenerd/master

Plugin to get hashrate of Flypool Zcash mining pool

plugins/currency/zcash/zcash_flypool_hashrate_

@@ -0,0 +1,102 @@
+#!/usr/bin/env python3
+
+"""
+=head1 NAME
+
+zcash_flypool_hashrate_ - Munin plugin to monitor your zcash.flypool.org hashrate (H/s)
+
+=head1 APPLICABLE SYSTEMS
+
+All systems with "python3" and "munin"
+
+=head1 CONFIGURATION
+
+zcash_flypool_hashrate_<YOUR_ZCASH_ADDRESS>_<YOUR_WORKER_NAME>
+
+=head1 SYNOPSIS
+
+  ln -s /usr/share/munin/plugins/zcash_flypool_hashrate_ \
+  /etc/munin/plugins/zcash_flypool_hashrate_t1gMVWjGhdjvb71UU11JDrFmiZhgUf4x5TH_mine
+
+=head1 INTERPRETATION
+
+This plugin shows the zcash.flypool.org mining pool hashrate (H/s) of a given Zcasg address and rig name.
+Hashrate is queried via Flypool API L<https://zcash.flypool.org>.
+
+=head1 VERSION
+
+0.0.1
+
+=head1 AUTHOR
+
+L<Nils Knieling|https://github.com/Cyclenerd>
+
+=head1 LICENSE
+
+GPLv2
+
+=head1 MAGIC MARKERS
+
+ #%# family=manual
+
+=cut
+"""
+
+import sys
+import json
+import codecs
+from urllib.request import urlopen
+from urllib.request import Request
+
+command = ''
+if len(sys.argv) > 1:
+    command = sys.argv[1]
+
+try:
+    zcash_address, miner = sys.argv[0].split("_")[3:]
+except ValueError:
+    print("The filename of this plugin (or its symlink) should follow this pattern: "
+          "'zcash_flypool_hashrate_<YOUR_ZCASH_ADDRESS>_<YOUR_WORKER_NAME>'", file=sys.stderr)
+    sys.exit(9)
+
+if command == 'config':
+    print("graph_title Flypool {}".format(miner))
+    print("graph_info zcash.flypool.org Mining Pool Hashrate for {}_{}".format(zcash_address, miner))
+    print("graph_vlabel Flypool Hashrate")
+    print("graph_category other")
+    print("flypool_hs_{}_{}.warning 200:".format(zcash_address, miner))
+    print("flypool_hs_{}_{}.critical 100:".format(zcash_address, miner))
+    print("flypool_hs_{}_{}.label H/s:".format(zcash_address, miner))
+    sys.exit(0)
+
+
+flypool_api_url = 'https://api-zcash.flypool.org/miner/' + zcash_address + '/worker/' + miner + '/currentStats'
+
+mining_req = Request(flypool_api_url)
+# User-Agent to bypass Cloudflare
+mining_req.add_header('User-Agent', 'Flypool Munin Plugin/1.0')
+
+try:
+    mining_stats_raw = urlopen(mining_req, timeout=15)
+except IOError as exc:
+    print("Failed to request Flypool API: {}".format(exc), file=sys.stderr)
+    sys.exit(9)
+
+hash_rate = "U"
+
+try:
+    mining_stats = json.loads(mining_stats_raw.read().decode("utf-8"))
+except ValueError:
+    print("Failed to parse JSON responce.", file=sys.stderr)
+else:
+    try:
+        worker = mining_stats['data']
+    except (KeyError, TypeError):
+        print("JSON result error!", file=sys.stderr)
+    else:
+        try:
+            hash_rate = worker['currentHashrate']
+        except (KeyError, TypeError):
+            print("No current Hashrate!", file=sys.stderr)
+
+print("flypool_hs_{}_{}.value {}".format(zcash_address, miner, hash_rate))