Added conditionals to avoid having to go through prompts for selections when -o|--output-file is specified during restores

README.md

@@ -21,8 +21,11 @@ This will allow you to just list the specific (unique) files/paths that were bac
 
 You can use this to find the file you are looking for before you search for it using the search action.
 
-### Restore (not implemented yet)
+### Restore 
 This will allow you to restore a file on disk to the specific version that is stored in the bucket.
 
 ### Get
 The utility will allow you to get the contents of a backup up file and have it output to the terminal.
+
+### Delete
+The utility allows you to delete entries/backups in the bucket if you choose to do so.

bucket-tool

@@ -1,34 +1,73 @@
 #!/usr/bin/ruby
 
+# BEGIN: Requires
+
+require 'digest'
+
+# END: Requires
+
+
 
 # BEGIN: Helper Functions
 
 def usage
-  puts "#{__FILE__} [ACTION <arg>] [<flags>]
+  puts <<EOT
+#{__FILE__} [ACTION <arg>] [<flags>]
 
 Description:
-  This utlity is meant to be used to interact with & manage the filebucket on P4 nodes due to the 
-  utility for that `puppet filebucket -l <action>` being nonfunctional.
+  This utlity is meant to be used to interact with & manage the filebucket in the same capacity as 
+  the builtin filebucket utility. However, it does not handle any puppet tie ins.
 
-  This implements the same functionality (minus the puppet tie-in) and will allow the user to 
-  search the filebucket and restore from it.
+  I created this due to the puppet filebucket utility in my companies P4 envrionments not 
+  functioning
 
 Actions:
-  search <term>       : Search for bucket entries matching a portion of the filepath
-  list                : List all Bucket entries
-  list-files          : List all files/paths that have been backed up to the bucket
-  get <entry-hash>    : Get the content of a specific entry (by hash)
+  search <term>              : Search for bucket entries matching a portion of the filepath
+  list                       : List all Bucket entries
+  list-files                 : List all files/paths that have been backed up to the bucket
+  get <entry-hash>           : Get the content of a specific entry (by hash)
+  restore <value>            : Restore previous state of file stored in bucket. Value can be hash or filename/filepath 
+                             : Note: To restore to an alternate path you will need to provide the path via the -o flag
+                             :
+  backup <file>              : Backup the file to the bucket 
+  delete <hash>              : Delete the entry from the bucket
+
+Restore Flags:
+  -o | --output-file <file>  : Used to provide an alternate restoral path for the restore function
 
 Global Flags:
-  -d | --debug        : Set debug flag
-  -h | --help         : This help message
+  -d | --debug               : Set debug flag
+  -h | --help                : This help message
+  -b | --bucket <bucket-dir> : User specified bucket directory
+
+Listing Filter Flags:
+  --from-date <DATE>         : Filter listings from starting after this point (FORMAT: YYYY-MM-DD HH:MM:SS)
+                             : EX:
+                             : 1.  --from-date 2023-05-10
+                             : 2.  --from-date "2023-05-10 13:23"
+                             :
+  --to-date <DATE>           : Filter listings from ending at this point (FORMAT: YYYY-MM-DD HH:MM:SS)
+                             : EX: 
+                             : 1.  --to-date 2024-05-10
+                             : 2.  --to-date "2024-05-10 05:27"
+                             :
+
+
+Info Format Flags:
+  -i | --inline              : Set the info format to inline (MTIME : HASH : FILENAME)
+  -l | --long                : Set the info format to long
+                             : Entry [HASH]:
+                             :   Paths: path1,path2,...,pathn
+                             :   MTIME: YYYY-MM-DD HH:MM:SS -####
+                             :
+  -c | --csv                 : Set the info format to csv ( MTIME,HASH,FILENAME1[;FILENAMEn] )
 
 Author:
   Name: Tristan Ancelet
   Email: tristan.ancelet@acumera.com
   Phone (Work) #: +1 (337) 965-1855
 
-"
+EOT
 end
 
 def log (message, level = 0)
@@ -61,6 +100,18 @@ def log (message, level = 0)
   end
 end
 
+def which(cmd)
+  #https://stackoverflow.com/questions/2108727/which-in-ruby-checking-if-program-exists-in-path-from-ruby
+  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
+  ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
+    exts.each do |ext|
+      exe = File.join(path, "#{cmd}#{ext}")
+      return exe if File.executable?(exe) && !File.directory?(exe)
+    end
+  end
+  nil
+end
+
 def get_verification (prompt = "Do you want to continue?")
   while true
     puts "#{prompt} (y/n): "
@@ -77,6 +128,54 @@ def get_verification (prompt = "Do you want to continue?")
   end
 end
 
+def get_selections (reference_array, prompt = "Which of the following do you want to select? ", options = { :multiple => false, }, &procedure)
+  ## Making clone of array since the selections were passed by reference
+  selections = reference_array.clone
+
+  def put_prompt (selections, prompt)
+    puts prompt
+    selections.each_with_index do |value,index|
+      puts "#{index} : #{value}"
+    end
+  end
+
+  if options[:multiple] == true
+    output = Array.new
+  else
+    output = ""
+  end
+
+  put_prompt selections, prompt
+
+  while true
+    choice = Integer(STDIN.gets.strip())
+    if choice.is_a? Integer
+     if  choice >= 0 and choice < selections.count 
+       if options[:multiple] == true
+         output.push(selections[choice])
+         selections.delete_at(choice)
+         if get_verification "Are you done selecting?" 
+           break
+         end
+         put_prompt selections, prompt
+       else
+         output = selections[choice]
+         break
+       end
+     else
+       puts "#{choice} is not between the values of 0 and #{selections.count}. Please try again."
+     end
+    else
+      puts "#{choice} is not a valid option. Please try again."
+    end
+  end
+  if procedure.respond_to? "call"
+    output = procedure.call(output)
+  end
+  output
+end
+
+
 # END: Helper Functions
 
 
@@ -96,15 +195,28 @@ end
 
 $DEBUG=false
 
+puppet_exe = which "puppet"
+
+if puppet_exe == nil
+  puts "The puppet utility was not found in $PATH. This utility will not be able to function"
+  exit
+end
+
 $CONFIG = Hash.new
-$CONFIG[:bucket_dir]=` puppet agent --configprint clientbucketdir `.strip()
+$CONFIG[:bucket_dir]=` #{puppet_exe} agent --configprint clientbucketdir `.strip()
+$CONFIG[:puppet_version]=` #{puppet_exe} --version `
 $CONFIG[:action]=""
 $CONFIG[:search_term]=""
 $CONFIG[:log_file]=""
+$CONFIG[:alt_filepath]=""
+$CONFIG[:info_format]="inline"
+$CONFIG[:from_time]=Time.at(0) # Beginning of epoch time
+$CONFIG[:to_time]=Time.now # Today
 File.open('/etc/hostname') do |file|
   $HOSTNAME=file.read().strip()
 end
-FLAG_REGEX=/\-+\S+/
+FLAG_REGEX=/^\-+\S+/
+DATE_REGEX=/^(?<year>[0-9]{4})-(?<month>[0-9]{1,2})-(?<day>[0-9]{1,2})[[:space:]]*((?<hour>[0-9]{1,2}):(?<minute>[0-9]{1,2}):(?<second>[0-9]{1,2}))?$/
 
 # END: Variables
 
@@ -124,7 +236,7 @@ if not (ARGV & ['-d', '--debug']).empty?
 end
 i=0
 case ARGV[i] 
-  when 'search', 'get', 'restore'
+  when 'search', 'get', 'restore', 'backup', 'delete'
     $CONFIG[:action]=ARGV[i]
     log "$CONFIG[:action] was set to #{ARGV[i]}"
     log "user provided search action ARGV[i.next] == #{ARGV[i.next]}"
@@ -149,12 +261,87 @@ case ARGV[i]
     exit
 end
 
+while i < ARGV.count
+  case ARGV[i]
+    when '-c', '--csv'
+      $CONFIG[:info_format]='csv'
+      log "$CONFIG[:info_format] was set to #{$CONFIG[:info_format]}"
+      i+=1
+    when '-l', '--long'
+      $CONFIG[:info_format]='long'
+      log "$CONFIG[:info_format] was set to #{$CONFIG[:info_format]}"
+      i+=1
+    when '-i', '--inline'
+      $CONFIG[:info_format]='inline'
+      log "$CONFIG[:info_format] was set to #{$CONFIG[:info_format]}"
+      i+=1
+    when '-o', '--output-file'
+      log "user provided ARGV[i.next] == #{ARGV[i.next]}"
+      if ARGV[i.next] != "" and not ARGV[i.next] =~ FLAG_REGEX
+        $CONFIG[:alt_filepath]=File.expand_path(ARGV[i.next])
+        log "search_term was set to #{$CONFIG[:alt_filepath]}"
+        i+=2
+      else
+        puts "Flag[#{ARGV[i]}] : Argument[#{ARGV[i.next]}] : Either the argument was not provided or it was a flag"
+        usage
+        exit
+      end
+    when '-d', '--debug'
+      log "#{ARGV[i]} as specified, and the $CONFIG[:debug] flag was already enabled"
+      i+=1
+
+    when '-b', '--bucket'
+      log "user provided ARGV[i.next] == #{ARGV[i.next]}"
+      if ARGV[i.next] != "" and not ARGV[i.next] =~ FLAG_REGEX
+        $CONFIG[:bucket_dir]=ARGV[i.next]
+        log "$CONFIG[:bucket_dir] was set to #{ARGV[i.next]}"
+        i+=2
+      else
+        puts "Flag[#{ARGV[i]}] : Argument[#{ARGV[i.next]}] : Either the argument was not provided or it was a flag"
+        usage
+        exit
+      end
+
+    when '--to-date', '--from-date'
+      if ARGV[i.next] != "" and ARGV[i.next] =~ DATE_REGEX
+        date_matches = DATE_REGEX.match(ARGV[i.next]).named_captures.each_value.select{|val| not val.nil?}.map(&:to_i)
+        case ARGV[i]
+          when '--to-date'
+            $CONFIG[:to_time]=Time.new(*date_matches)
+            log "$CONFIG[:to_time] was set to #{$CONFIG[:to_time]}}"
+          when '--from-date'
+            $CONFIG[:from_time]=Time.new(*date_matches)
+            log "$CONFIG[:from_time] was set to #{$CONFIG[:from_time]}}"
+        end
+        i+=2
+      else
+        puts "Flag[#{ARGV[i]}] : Argument[#{ARGV[i.next]}] : Either the argument was not provided or it was a flag"
+        usage
+        exit
+      end
+
+    when FLAG_REGEX
+      # Catch all to prevent user from specifying a non-accounted for flag
+      puts "#{ARGV[i]} is not a valid flag."
+      usage
+      exit
+
+    else
+      i+=1
+  end
+end
+
 ## BEGIN: Checks
 
 if $CONFIG[:action] == ""
   puts "Action was not provided"
 end
 
+if not Dir.exist? $CONFIG[:bucket_dir]
+  puts "BucketDir[#{$CONFIG[:bucket_dir]}] Does not exist. Please check to make sure configuration is correct"
+  exit
+end
+
 case $CONFIG[:action]
   when 'search', 'get'
     if $CONFIG[:search_term] == ""
@@ -162,6 +349,14 @@ case $CONFIG[:action]
       usage
       exit
     end
+
+  when 'backup'
+    if not File.exist? $CONFIG[:search_term]
+      puts "File #{$CONFIG[:search_term]} does not exist. Please check to make sure that there are not typos and attempt the run again."
+      exit
+    else
+      $CONFIG[:search_term] = File.expand_path($CONFIG[:search_term])
+    end
 end
 
 ## END: Checks
@@ -176,12 +371,8 @@ class BucketEntry
   def initialize (entry_dir)
     @entry_dir = entry_dir
     @hash = File.basename(entry_dir)
-    @filepaths = Array.new
     File.open("#{entry_dir}/paths") do |file|
-      file.read().split(/\n/).each do |path|
-        log "BucketEntry[#{@hash}] adding #{path} to @filepaths"
-        @filepaths.push(path)
-      end
+      @filepaths = file.read.split(/\n/)
     end
     @mtime = File.mtime(entry_dir)
     log "BucketEntry was created from #{entry_dir}"
@@ -189,10 +380,10 @@ class BucketEntry
 
   def path_include? (path_string)
     log "BucketEntry[#{hash}] was called with #{path_string}"
-    @filepaths.each.any? {|path| path.include? path_string}
+    @filepaths.any?{|path| path.include? path_string}
   end
 
-  def infostring
+  def long_info
     "Entry [#{@hash}]:
       Paths: #{@filepaths.join(',')}
       MTIME: #{@mtime}
@@ -200,10 +391,25 @@ class BucketEntry
 "
   end
 
+  def csv_info
+    [@mtime,@hash,@filepaths.join(';')].join(',')
+  end
+
   def inline_info
     "#{@mtime} : #{@hash} : #{@filepaths.join(',')}"
   end
 
+  def info
+    case $CONFIG[:info_format]
+      when 'long'
+        long_info
+      when 'inline'
+        inline_info
+      when 'csv'
+        csv_info
+    end
+  end
+
   def content 
     log "BucketEntry[#{@hash}] getting contents"
     File.open("#{@entry_dir}/contents",'r') do |file|
@@ -211,6 +417,54 @@ class BucketEntry
     end
   end
 
+  def delete
+    returncode = true
+    log "User has chosen to delete this BucketEntry"
+
+    Dir.chdir(@entry_dir){
+      log "Changed to #{@entry_dir} to delete children files"
+      Dir.children(@entry_dir).each{|file| 
+        log "Deleting #{file}"
+        if File.unlink(file)
+          log "#{file} deleted"
+        else
+          puts "There was an issue deleting #{File.expand_path(file)}"
+          exit
+        end
+      }
+    }
+
+    log "Deleting #{@entry_dir}"
+    if Dir.delete(@entry_dir)
+      log "Deleted #{@entry_dir}"
+    else
+      puts "There was an issue when attempting to delete #{@entry_dir}"
+    end
+
+    dir = @entry_dir
+
+    log "Beginning to delete trailing dirs unless one has children other than those that make up #{File.dirname(@entry_dir)}"
+    for i in 1..8
+      dir = File.dirname(dir)
+      log "Beginning to delete #{dir}"
+      children = Dir.children(dir)
+      log "Dir[#{dir}] children found to be #{children.join(',')}"
+      if children.empty?
+        if Dir.delete(dir)
+          log "Deleted #{dir}"
+        else
+          puts "There was an issue when attempting to delete #{dir}"
+          exit
+        end
+      else
+        log "#{dir} showed to contain another child directory. Not deleting and breaking loop"
+        break
+      end
+    end
+
+    returncode
+  end
+
 end
 
 class Bucket
@@ -222,16 +476,41 @@ class Bucket
     load_bucket
   end
 
+  def select(&proc)
+    @entries.each_value.select &proc
+  end
+
+  def any?(&proc)
+    @entries.each_value.any? &proc
+  end
+    
+
   def load_bucket
     log "Bucket[#{@bucketdir}] is loading entries"
     Dir["#{@bucketdir}/**/paths"].each.map{|path| File.dirname(path)}.each do |directory|
       log "\"#{directory}\" was grabbed from bucket directory. Making new BucketEntry"
       entry = BucketEntry.new(directory)
-      @entries[entry.hash]=entry
-      log "BucketEntry[#{entry.hash}] was added to @entries Size=#{@entries.count()}"
+      if entry.mtime <= $CONFIG[:to_time] and entry.mtime >= $CONFIG[:from_time]
+        @entries[entry.hash]=entry
+        log "BucketEntry[#{entry.hash}] was added to @entries Size=#{@entries.count()}"
+      else
+        log "Entry[#{entry.hash}] was filtered out by the user provided time constraints"
+      end
     end
     log "Bucket[#{@bucketdir}] was loaded"
   end
+
+  def filenames
+    filenames = Array.new
+    @entries.each_value do |entry|
+      entry.filepaths.each do |path|
+        if not filenames.include? path
+          filenames.push(path)
+        end
+      end
+    end
+    filenames
+  end
 end
 
 # END: Classes
@@ -241,17 +520,10 @@ end
 # BEGIN: Work Functions
 
 def search_entries_paths (bucket)
-  log "user entered"
-  bucket.entries.each_value do |entry|
-    log "checking Entry[#{entry.hash}]"
-    if entry.path_include? $CONFIG[:search_term]
-      puts entry.inline_info
-    end
-  end
+  puts bucket.select{|entry| entry.path_include? $CONFIG[:search_term]}.sort_by(&:mtime).map(&:info)
 end
 
 def get_content_of_entry_hash (bucket)
-  log "user entered"
   if bucket.entries.has_key? $CONFIG[:search_term]
     puts bucket.entries[$CONFIG[:search_term]].content
   else
@@ -261,43 +533,199 @@ def get_content_of_entry_hash (bucket)
 end
 
 def list_all_entries (bucket)
-  puts bucket.entries.each_value.each.map{|entry| entry.inline_info}.sort.join("\n")
+  puts bucket.filenames.map{|filename| bucket.select{|entry| entry.path_include? filename}.sort_by(&:mtime).map(&:info)}
 end
 
 def list_entry_files (bucket)
-  filenames = Array.new
-  bucket.entries.each_value do |entry| 
-    entry.filepaths.each do |path|
-      if not filenames.include? path
-        filenames.push(path)
+  puts bucket.filenames.sort.join("\n")
+end
+
+def get_entry_by_file (bucket, filenames)
+  entry = nil
+  if filenames.count == 1
+    filename = filenames[0]
+  else
+    filename = get_selections filenames, "Your filename matched multiple files. Please select one to restore"
+  end
+
+  entries = bucket.select{|entry| entry.path_include? filename}
+  if entries.count == 1
+    entry = entries.first
+  else
+    while true 
+      mtimes = entries.map{|entry| entry.mtime}
+      entry_mtime = get_selections(mtimes , "Which timestamp to you want to revert the file to?") 
+      entry = entries.lazy.select{|entry| entry.mtime == entry_mtime}.first
+
+      if get_verification "Do you want to see the contents of #{filename} at this time?"
+        puts entry.content
+        if get_verification "Is this the entry you want to overwrite #{filename} with?"
+          break
+        end
+      else
+        break
       end
     end
   end
-  puts filenames.sort.join("\n")
+
+  if $CONFIG[:alt_filepath] != ""
+      return entry, $CONFIG[:alt_filepath]
+  end
+
+  if filename[0] != '/'
+    filename = "/#{filename}"
+  end
+
+  return entry, filename
 end
 
-def restore_entry (bucket)
+def get_entry_by_hash (bucket)
   if bucket.entries.has_key? $CONFIG[:search_term]
     entry = bucket.entries[$CONFIG[:search_term]]
+
+    if $CONFIG[:alt_filepath] != ""
+      log "$CONFIG[:alt_filepath] was set. Skipping prompts asking for filepaths"
+      return entry, $CONFIG[:alt_filepath]
+    end
+
+    filepath = ""
     if entry.filepaths.count == 1
       filepath = entry.filepaths[0]
-      if filepath[0] != '/'
-        filepath = "/#{filepath}"
-      end
-      if get_verification "Are you sure you want to overwrite #{filepath}?" 
-        File.open(filepath,'w') do |file|
-          file.write(entry.content)
-        end
-      else
-        puts "Ok not overwriting."
-      end
-    else
+    else 
+      filepath = get_selections entry.filepaths, "What filepath do you wish to restore to?"
     end
+
+    if filepath[0] != '/'
+      filepath = "/#{filepath}"
+    end
+
+    return entry, filepath
+
   else
     puts "There were no entries corresponding to #{$CONFIG[:search_term]}"
   end
 end
 
+def restore_entry (bucket)
+  entry = nil
+  if bucket.any?{ |entry| entry.path_include? $CONFIG[:search_term] }
+    filenames = bucket.filenames.select {|filename| filename.include? $CONFIG[:search_term]}
+    entry, filepath = get_entry_by_file bucket, filenames
+  else
+    entry, filepath = get_entry_by_hash bucket
+  end
+
+  if get_verification "Are you sure you want to overwrite #{filepath}?" 
+    File.open(filepath,'w') do |file|
+      file.write(entry.content)
+    end
+  else
+    puts "Ok not overwriting."
+  end
+end
+
+def backup_file (bucket)
+  hash=""
+  if  Gem::Version.new($CONFIG[:puppet_version]) >= Gem::Version.new("7.0.0")
+      log "Puppet Version is +7.* so hashing algo will be SHA256"
+      File.open($CONFIG[:search_term],'r') do |file|
+        hash = Digest::SHA2.hexdigest file.read()
+      end
+
+  else
+      log "Puppet Version is not 7.* so hashing algo will be MD5"
+      File.open($CONFIG[:search_term],'r') do |file|
+        hash = Digest::MD5.hexdigest file.read()
+      end
+  end
+
+  log "Hash for #{$CONFIG[:search_term]} was generated to be #{hash}"
+
+  if bucket.entries.has_key? hash
+    log "Hash was found to already be backed up to bucket"
+    puts "This file (hash: #{hash} has already been backed up in the bucket"
+    puts bucket.entries[hash].info
+    exit
+  end
+
+  puppet_uid=0
+  puppet_gid=0
+  File.open('/etc/passwd','r') do |file|
+    log "Getting puppet UID & GID from /etc/passwd"
+    passd = file.read.split(/\n/).select{|line| line =~ /puppet.+/}.first
+    puppet_uid=Integer(passd.split(':')[2])
+    log "Retrieved Puppet UID as #{puppet_uid}"
+    puppet_gid=Integer(passd.split(':')[3])
+    log "Retrieved Puppet GID as #{puppet_gid}"
+  end
+
+  log "Created preceeding directorys to hash directory"
+  dir=$CONFIG[:bucket_dir]
+  hash.chars[0,8].each{|char|
+    dir+="/#{char}"
+    log "Checking to make sure that #{dir} doesn't exist"
+    if not Dir.exist? dir
+      log "#{dir} didn't exist so creating the directory & changing the UID to #{puppet_uid} & GID #{puppet_gid}"
+      Dir.mkdir dir
+      File.chown(puppet_gid, puppet_uid, dir)
+    end
+  }
+
+  entry_dir="#{dir}/#{hash}"
+  if not Dir.exist? entry_dir
+    log "#{entry_dir} didn't exist so creating the directory & changing the UID to #{puppet_uid} & GID #{puppet_gid}"
+    Dir.mkdir  entry_dir
+    File.chown(puppet_gid, puppet_uid, entry_dir)
+  end
+
+  contents_path="#{entry_dir}/contents"
+  log "#{contents_path} will be created"
+  paths_path="#{entry_dir}/paths"
+  log "#{paths_path} will be created"
+
+  log "Creating #{contents_path}"
+  File.open(contents_path, 'w') do |contents_file|
+    log "Opened #{contents_path} to be written to"
+    File.open($CONFIG[:search_term], 'r') do |source_file|
+      log "Opened #{$CONFIG[:search_term]} to be read from"
+      contents_file.write(source_file.read)
+      contents_file.chown(puppet_gid, puppet_uid)
+      log "#{contents_path} was created & was chowned to UID to #{puppet_uid} & GID #{puppet_gid}"
+    end
+  end
+
+  log "Creating #{paths_path}"
+  File.open(paths_path, 'w') do |paths_file|
+    log "Opened #{paths_path} to be written to"
+    paths_file.write($CONFIG[:search_term])
+    log "Just wrote #{$CONFIG[:search_term]} to #{paths_path}"
+    paths_file.chown(puppet_gid, puppet_uid)
+    log "#{paths_path} was created & was chowned to UID to #{puppet_uid} & GID #{puppet_gid}"
+  end
+
+  puts "File #{$CONFIG[:search_term]} was backed up to #{entry_dir}"
+end
+
+def delete_entry (bucket)
+  if bucket.entries.has_key? $CONFIG[:search_term]
+    entry = bucket.entries[$CONFIG[:search_term]]
+  else
+    puts "BucketEntry[#{$CONFIG[:search_term]}] Does not exist. Please make sure you provided the correct hash value"
+    exit
+  end
+
+  puts "Corresponding Entry: #{entry.info}"
+  if get_verification "Are you sure you want to delete BucketEntry[#{entry.hash}]? " 
+    if get_verification "This cannot be undone. Are you sure you want to continue?: "
+      if entry.delete
+        puts "Ok. BucketEntry[#{entry.hash}] Has been deleted"
+      end
+    end
+  end
+
+
+end
+
 # END: Work Functions
 
 
@@ -322,6 +750,11 @@ if __FILE__ == $0
     when 'restore'
       restore_entry bucket
 
+    when 'backup'
+      backup_file bucket
+
+    when 'delete'
+      delete_entry bucket
   end
 
 end