Tag Archives: code

Ruby HTTPS POST’ing

So for my own geeky pleasure, I decided to try writing cgi scripts with Ruby, Python, PHP, and Perl.  All had readily accessible documentation on how to POST to a https URL but ruby. My first thought was to look at the Net:HTTP documentation found HERE.

The one example I wanted was not listed. I did some searching around and pieced together the following code. I hope this is as big a help to you as it was to me. Looking at it, It seems pretty intuitive….but if your like me, sometimes you need it spelled out 😀

As a side note, setting path to path = ‘/../’ is my work-around for a script that is mapped to www.mysite.com rather than ‘/some_POST_handling_script.rb’


#Juan Vazquez ->javazquez.com
require 'net/http'
require 'net/https'
http = Net::HTTP.new('www.mysite.com', 443)
http.use_ssl = true
#path(a.k.a) ->www.mysite.com/some_POST_handling_script.rb'
path = '/some_POST_handling_script.rb'
data = 'badguy=Gargamel'

headers = {'Content-Type'=> 'application/x-www-form-urlencoded'}

resp, data = http.post(path, data, headers)

puts 'Code = ' + resp.code
puts 'Message = ' + resp.message
resp.each {|key, val| puts key + ' = ' + val}
puts data

Recursive Directory Search with Ruby and Groovy

A while back I was bored and decided I need to brush up on my Ruby chops. I had been wanting to play with threads for quite some time and couldn’t think of anything that would be a fun project to do…until this crazy idea hit me.  Wouldn’t it be cool if could generate multiple threads to search different servers for any file of my choosing?” The code I wrote doesn’t directly do this, but with some minor tweaks it could be done.

I took that idea and ran with it using Ruby. After I finished coding, I thought I would try writing it from scratch using my second favorite language, Groovy (Ruby is my first).  I have to admit, writing the Groovy code was more intuitive because of the baked in file/directory iterators. I refactored my Ruby code a few times and ended up using the find module to maximize performance. Below is the code, and as always, I am open to suggestions on other ways of doing it 😀

Ruby code
 

#########################
#  Juan Vazquez
#  http://javazquez.com
#########################
require 'find'
class DirectoryWizard
  attr_accessor :root_dir,:exts, :thread_cnt, :thread_tracker, :count
  #initialize with a root , and file extensions
  def initialize(root, t_count,*extensions)
    @root_dir, @exts, @thread_cnt , @thread_tracker, @count = root, extensions, t_count, [], 0
  end

  def start_looking
    begin
      puts Dir.entries(@root_dir).select{|dir_item| is_in_ext(dir_item) }
      list_dirs(@root_dir).each do|di|
        @thread_tracker << Thread.new(@root_dir+di){|directory| 
                                             recursive_file_search(directory) }
        wait_for_running_threads  if(@thread_tracker.size > @thread_cnt)
      end
      wait_for_running_threads
    rescue Exception => e; puts e;
    end
  end
  def recursive_file_search(directory)
    Find.find(directory){|dir_item|
      if(is_in_ext(dir_item))
       @count+=1
       puts dir_item
      end
    }
  end

    #return array of immediate subdirectories excluding . and ..
  def list_dirs(directory)
   Dir.entries(directory).select{|fh|(!is_p_c_directory?(fh) && 
                                          File.directory?(directory+fh))}
  end

  #return an array of all file/directories excluding '.' and '..'
  def list_contents(directory)
    Dir.entries(directory).delete_if{|x| is_p_c_directory?(x)}
  end

  #is Parent or Current Directory
  def is_p_c_directory?(filename);(filename =="." || filename == "..");end
  
#return an array of files that match ext
  def is_in_ext(dir_item); @exts.detect{|ext| dir_item.match(ext)}; end
 
 def wait_for_running_threads
    @thread_tracker.each{|th|th.join}
    @thread_tracker=[]
  end
end #end class


t= DirectoryWizard.new("\\\\server\\e$\\profiles\\",16,'filename')

t.start_looking

puts "Done with Program count is #{t.count}"

Groovy Code

import java.util.regex.*;
class DirWiz{
   def root_dir, exts, thread_max_cnt, thread_tracker, count

   public DirWiz(String basedir, int t_count, List extensions){
        this.root_dir = basedir
        this.exts = compile_regex(extensions)
        this.thread_max_cnt = t_count
        this.thread_tracker = []
        this.count=0
    }
    def start_looking(){
      try{
          def dir = new File(this.root_dir)
           check_for_files(this.root_dir)
          //recursively search directories
           dir.eachDir{ subDir->
            //thread it off
           if(this.thread_tracker.size() > this.thread_max_cnt){
               this.thread_tracker.each{it->it.join()}
               this.thread_tracker=[]
           }
           this.thread_tracker << Thread.start{
                 subDir.eachFileRecurse{ fh -> 
                    check_using_compiled_regex(fh.canonicalPath)
                 }
           }
        }
      }catch(Exception e){
        println("error ${e}")
      }
      this.thread_tracker.each{it->it.join()}
      println("Done")
    }
   def print_if_match(String file){this.exts.each{ext->
                if(file=~ext){this.count+=1;println(file)}}
   }
   def check_using_compiled_regex(String file){
    try{
	def var = this.exts.find{it.matcher(file).matches()}
	if(var){this.count+=1;println(file)}
    }catch(Exception e){println("Not a Directory ${dir}\n$e")}
   }
   def check_for_files(String dir){
      try{ new File(dir).eachFile{ file ->
	        check_using_compiled_regex(file.canonicalPath)
        }
      }catch(Exception e){println("Not a Directory ${dir}\n$e")}
   }
   def compile_regex(List list){
    List ret_list=[]
    list.each{ ret_list <<    Pattern.compile(it,Pattern.CASE_INSENSITIVE)}
    return ret_list
   }
}


def t = new DirWiz('c:\\',16,[".*\\.jpg.*"])//look for jpegs
//def t = new DirWiz('\\\\server\\dir\\',16,["filname"])
t.start_looking()

println("Done with the program total number of files is ${t.count}")


 

 

BarCamp Omaha

I have just been informed/invited to Omaha’s BarCamp! According to the site, this is a “unconference born from the desire for people to share and learn in an open environment.”

The list of topics that have been submitted thus far are already enough to get any developer’s inner geek super-charged. At this point I am not sure what I will talk about, but here are a few ideas.

  1. uploading/updating multiple models in one form (ROR)
  2. Groovy and flickr
  3. Action Script 3 concepts
  4. Linux Administration
  5. Setting up Twiki

Any suggestions or votes on what I could bring to the BarCamp would be awesome. If you can make it, I suggest checking this event out! After all, you don’t want to be sitting there listening to you fellow IT buddies raving about the great time they had learning at BarCamp…right?

File I/O Part 1

I love to learn and try new languages. Not only is learning a new language fun, many times it teaches me something new about a language that I am already familiar with. The only problem that I have with learning so many languages, is keeping them straight. I decided that I would take a few of the dynamic languages I use most often and compile a list of how to handle File I/O with each of them. If you have a Dynamic language(part 2 of this post will be on static languages) not represented below or have another method of File I/O with the represented languages, please add to the list with its respective File I/O code:D
Without further ado…

//Groovy open file for writing
def target ="filename"
File wf= new File(target)
wf.write( "I am in your file eating your space" )

//Groovy one liner
new File('filename.txt').text = 'First line of text!'

//Groovy open file for appending
def target ="filename"
File af= new File(target)
af.append("I have all of your base")

//Groovy read each line in file
new File("filename").eachLine{line-> println line}

//Groovy read whole document and put into List

List lines = new File("filename").readLines()
//lines contains two lines that we need
println "first line  $lines[0]"
println "second line $lines[1]"

//Groovy reading one line
File rf= new File("filename") //open for reading
//read first line, trim, assign to tmp
rf.withReader { line ->tmp = line.readLine().trim()}

//Groovy test if file exists
File src = new File(srcFile)
if (src.exists() ){ println "I exist"}
else{println "I don't exist"}

#Ruby openfile for reading
fh = File.new(path, "r")  # open file "path" for reading only
fh.close

#Ruby open file for writing
fout   = File.new(path, "w")  # open file "path" for writing only
fout.puts "Up, Up, Down, Down, Left, Right, Left, Right, B, A, Select, Start"
fout.close

#Ruby open file for apending
fa= File.new("DeleteMe.txt","a")
fa.puts "I am at the end of file"
fa.close

#Ruby read eachline in a file
File.open("file").each { |line| p line}

#Ruby read entire file to string
fh = File.new(filename)
str = fh.read

#Ruby read entire file into array(each line is an element in the array)
fh = File.new(filename)
str = fh.readlines

#Python Write a file
fout = open("DeletMe.txt", "w")
fout.write("Writing to fout\nCheck it out!")
fout.close()

#Python Read an entire file
fin = open("ReadingTest.txt", "r")
fin_text =  fin.read()
fin.close()
print fin_text

#Python read entire file into list
fin = open("ReadingTest.txt", "r")
txt= fin.readlines()
fin.close()
print txt[0]

#Python append to a file
fh= open ( 'DeleteMe.txt', 'a' )
fh.write ( '\n\n\nBottom line.' )
fh.close()

#Perl reading a file
open(FILE,  '<', $file) or die "Can't read $file: $!\n";
while(<FILE>)
{
print ;
}

#Perl append to a file
open(FILE, '>>', $file) or    die "Can't append to $file: $!\n";
print FILE "text";
close(FILE);

#Perl read and write to a file
#+< allows reading and writing, and keeps the data that was
#already in the file.  open() will fail if file doesn't exist.
open(FILE, "+<$file" ) or die ("Can't  read|write: $file\n");
close(FILE);

#Perl read and write to a file
#+>allows writing and reading, but replaces/overwrites the
#data in the file if the file exists. Creates it if it doesn't exist.
open(FILE, "+>$file" ) or die ("Can't write or read:$file \n");

close(FILE);

PHP code doesn’t display properly within WordPress, so here is an image of the code

PHP File I/O