This commit was manufactured by cvs2svn to create branch

[plcapi.git] / PLC / Methods / GetPlcRelease.py

diff --git a/PLC/Methods/GetPlcRelease.py b/PLC/Methods/GetPlcRelease.py
new file mode 100644 (file)
index 0000000..7df66aa
--- /dev/null
+++ b/PLC/Methods/GetPlcRelease.py
@@ -0,0 +1,57 @@
+from PLC.Method import Method
+from PLC.Auth import Auth
+from PLC.Faults import *
+
+import re
+
+comment_regexp = '\A\s*#.|\A\s*\Z|\Axxxxx' 
+
+regexps = { 'build'   : '\A[bB]uild\s+(?P<key>[^:]+)\s*:\s*(?P<value>.*)\Z',
+           'tags'    : '\A(?P<key>[^:]+)\s*:=\s*(?P<value>.*)\Z'}
+
+class GetPlcRelease(Method):
+    """
+    Returns various information about the current myplc installation.
+    """
+
+    roles = ['admin', 'pi', 'user', 'tech', 'node', 'anonymous']
+
+    accepts = [
+        Auth(),
+        ]
+
+    # for now only return /etc/myplc-release verbatim
+    returns = { 'build' : 'information about the build',
+               'tags' : 'describes the codebase location and tags used for building',
+               'rpms' : 'details the rpm installed in the myplc chroot jail' }
+
+    def call(self, auth):
+
+       comment_matcher = re.compile(comment_regexp)
+
+       matchers = {}
+       result = {} 
+       for field in regexps.keys():
+           matchers[field] = re.compile(regexps[field])
+           result[field]={}
+       result['rpms']="Not implemented yet"
+
+       try:
+           release = open('/etc/myplc-release')
+           for line in release.readlines():
+               line=line.strip()
+               if comment_matcher.match(line):
+                   continue
+               for field in regexps.keys():
+                   m=matchers[field].match(line)
+                   if m:
+                       (key,value)=m.groups(['key','value'])
+                       result[field][key]=value
+                       break
+               else:
+                   if not result.has_key('unexpected'):
+                       result['unexpected']=""
+                   result['unexpected'] += (line+"\n")
+       except:
+           raise PLCNotImplemented, 'Cannot open /etc/myplc-release'
+       return result