From a6a57ac9af207b8128e3cc575a18cbe506232d3a Mon Sep 17 00:00:00 2001
From: Narayan Desai <desai@mcs.anl.gov>
Date: Sat, 3 Nov 2007 23:41:12 +0000
Subject: Implement data collection on incomplete entry path for POSIX

git-svn-id: https://svn.mcs.anl.gov/repos/bcfg/trunk/bcfg2@3911 ce84e21b-d406-0410-9b95-82705330c041
---
 src/lib/Client/Tools/POSIX.py    | 23 ++++++++++++++++++++++-
 src/lib/Client/Tools/__init__.py |  8 ++++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/src/lib/Client/Tools/POSIX.py b/src/lib/Client/Tools/POSIX.py
index 7b0544a25..aea5e7f3c 100644
--- a/src/lib/Client/Tools/POSIX.py
+++ b/src/lib/Client/Tools/POSIX.py
@@ -47,7 +47,7 @@ def normGid(entry):
         log.error('GID normalization failed for %s' % (entry.get('name')))
         return False
 
-text_chars = "".join(map(chr, range(32, 127)) + list("\n\r\t\b"))
+text_chars = "".join([chr(y) for y in range(32, 127)] + list("\n\r\t\b"))
 notrans = string.maketrans("", "")
 
 def isString(strng):
@@ -278,6 +278,27 @@ class POSIX(Bcfg2.Client.Tools.Tool):
             self.logger.error('Permission fixup failed for %s' % (entry.get('name')))
             return False
 
+    def gatherCurrentData(self, entry):
+        if entry.tag == 'ConfigFile':
+            try:
+                ondisk = os.stat(entry.get('name'))
+            except OSError:
+                entry.set('current_exists', 'false')
+                self.logger.debug("%s %s does not exist" %
+                                  (entry.tag, entry.get('name')))
+                return False
+            try:
+                entry.set('current_owner', str(ondisk[ST_UID]))
+                entry.set('current_group', str(ondisk[ST_GID]))
+            except (OSError, KeyError):
+                pass
+            entry.set('perms', str(oct(ondisk[ST_MODE])[-4:]))
+            try:
+                content = open(entry.get('name')).read()
+                entry.set('current_bfile', binascii.b2a_base64(content))
+            except IOError, error:
+                self.logger.error("Failed to read %s: %s" % (error.filename, error.strerror))
+
     def VerifyConfigFile(self, entry, _):
         '''Install ConfigFile Entry'''
         # configfile verify is permissions check + content check
diff --git a/src/lib/Client/Tools/__init__.py b/src/lib/Client/Tools/__init__.py
index ed8649082..663fa3433 100644
--- a/src/lib/Client/Tools/__init__.py
+++ b/src/lib/Client/Tools/__init__.py
@@ -152,6 +152,10 @@ class Tool:
         return [sentry.get('name') for sentry in struct if sentry.tag in \
                 ['ConfigFile', 'SymLink', 'Directory', 'Permissions']]
 
+    def gatherCurrentData(self, entry):
+        '''Default implementation of the information gathering routines'''
+        pass
+
     def canVerify(self, entry):
         '''test if entry has enough information to be verified'''
         if not self.handlesEntry(entry):
@@ -164,6 +168,10 @@ class Tool:
                               % (entry.tag, entry.get('name')))
             self.logger.error("\t... due to absense of %s attribute(s)" % \
                               (":".join(missing)))
+            try:
+                self.gatherCurrentData(entry)
+            except:
+                self.logger.error("Unexpected error in gatherCurrentData", exc_info=1)
             return False
         return True
 
-- 
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