From db696830607b574cc8a9a59d0b0add50a0c0cb6e Mon Sep 17 00:00:00 2001
From: Alexander Sulfrian <alexander@sulfrian.net>
Date: Wed, 8 May 2013 03:16:42 +0200
Subject: hostinfo: Prefix class, ports/addresses handling adjusted, new online
 mode

---
 bin/hostinfo        |  2 +-
 hostinfo/printer.py | 97 ++++++++++++++++++++++++++++++++++++++---------------
 2 files changed, 71 insertions(+), 28 deletions(-)

diff --git a/bin/hostinfo b/bin/hostinfo
index acf711c..c7cf8f5 100755
--- a/bin/hostinfo
+++ b/bin/hostinfo
@@ -18,7 +18,7 @@ def print_info(path, key=None):
     stream = file(path, 'r')
     data = yaml.load(stream)
 
-    p = printer.Printer(data)
+    p = printer.Printer(data, False)
     p.info(key)
 
 def find_host(host, key=None):
diff --git a/hostinfo/printer.py b/hostinfo/printer.py
index 97ed4ca..438464b 100644
--- a/hostinfo/printer.py
+++ b/hostinfo/printer.py
@@ -1,5 +1,19 @@
 # -*- coding: utf-8 -*-
 
+from __future__ import print_function
+
+class Prefix:
+    def __init__(self, prefix, output, oneline):
+        self.prefix = prefix
+        self.output = output
+        self.empty = oneline
+
+    def pprint(self, data):
+        self.output("%s%s" % (self.prefix, data))
+        if not self.empty:
+            self.prefix = ' ' * len(self.prefix)
+            self.empty = True
+
 class Printer:
     labels = {
         'hostname': 'Hostname',
@@ -10,41 +24,77 @@ class Printer:
         'vserver': 'VServer'
     }
 
-    sort = ['hostname', 'arch', 'os', 'addresses']
     ignore = ['vserver-host']
 
-    def __init__(self, data):
+    def __init__(self, data, oneline):
         self.data = data
+        self.oneline = oneline
+
+    def _sort_with_list(self, list, sort):
+        def helper(value):
+            if value in sort:
+                return sort.index(value)
+            return len(sort)
+
+        return sorted(list, key=helper)
+
+    def print_addresses(self, p, value):
+        interfaces = sorted(set([ip['interface'] for ip in value]))
+        maxlength = max(map(len, interfaces))
+        for interface in interfaces:
+            iface_name = ("%s: " % interface).ljust(maxlength+2)
+            p_new = Prefix(iface_name, p.pprint, self.oneline)
 
-    def print_addresses(self, label, value):
-        for ip in value:
-            print('%s%s/%s (%s)' %
-                  (label, ip['address'], ip['netmask'], ip['interface']))
-            label = self.empty
+            for ip in value:
+                if interface == ip['interface']:
+                    p_new.pprint('%s/%s' %
+                                 (ip['address'], ip['netmask']))
 
-    def print_vserver(self, label, value):
+    def print_vserver(self, p, value):
         if value == 'guest':
-            print('%sguest running on %s' %
-                  (label, self.data['vserver-host']))
+            p.pprint('guest running on %s' % self.data['vserver-host'])
         else:
-            print('%s %s' % (self.label, value))
+            p.pprint(value)
+
+    def print_ports(self, p, value):
+        processes = set([port['process'] for port in value if 'process' in port])
+        processes = self._sort_with_list(processes,
+                                        ['sshd', 'nrpe', 'munin-node'])
+        if len([port for port in value if 'process' not in port]) > 0:
+            processes.append('UNKNOWN')
+
+        maxlength = max(map(len, processes))
+        for process in processes:
+            process_name = ("%s: " % process).ljust(maxlength+2)
+            p_new = Prefix(process_name, p.pprint, self.oneline)
+
+            for port in value:
+                if 'process' in port and process == port['process'] or \
+                   'process' not in port and process == 'UNKNOWN':
+                    if port['proto'] in ['tcp6', 'udp6']:
+                        p_new.pprint('(%s) [%s]:%s' %
+                                     (port['proto'].replace('6', ''),
+                                      port['ip'], port['port']))
+                    else:
+                        p_new.pprint('(%s) %s:%s' %
+                                     (port['proto'], port['ip'], port['port']))
 
     def print_default(self, key, value):
         label = ''
         if self.length > 0:
             label = '%s: ' % self.get_label(key)
             label = label.rjust(self.length)
+        p = Prefix(label, print, self.oneline)
 
         try:
             method = getattr(self, 'print_%s' % key)
-            method(label, value)
+            method(p, value)
         except AttributeError:
             if isinstance(value, list):
                 for v in value:
-                    print('%s%s' % (label, v))
-                    label = self.empty
+                    p.pprint(v)
             else:
-                print('%s%s' % (label, value))
+                p.pprint(value)
 
     def get_label(self, key):
         if key in self.labels:
@@ -55,22 +105,15 @@ class Printer:
         # find max lenght for labels
         labels = map(self.get_label, self.data.keys())
         self.length = max(map(len, labels)) + 3
-        self.empty = ' ' * self.length
 
         if key is not None:
             self.length = 0
-            self.empty = ''
             if key in self.data:
                 self.print_default(key, self.data[key])
         else:
-            # first the sorted keys
-            for key in self.sort:
-                if key in self.data:
+            keys = self._sort_with_list(self.data.keys(),
+                                       ['hostname', 'arch', 'os',
+                                        'addresses', 'ports'])
+            for key in keys:
+                if key not in self.ignore:
                     self.print_default(key, self.data[key])
-
-            # other keys, that are not ignored
-            for key in [k for k in self.data.keys()
-                        if k not in self.sort
-                        and k not in self.ignore]:
-                self.print_default(key, self.data[key])
-
-- 
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