Web Technology Experts Notes

Monday, 13 March 2017

IMAP Gmail read messages details from inbox

Check that IMAP is turned on
If Not, Please enable.

Library Code

/** functions used for getting message **/
function flattenParts($messageParts, $flattenedParts = array(), $prefix = '', $index = 1, $fullPrefix = true) {

    foreach($messageParts as $part) {
        $flattenedParts[$prefix.$index] = $part;
        if(isset($part->parts)) {
            if($part->type == 2) {
                $flattenedParts = flattenParts($part->parts, $flattenedParts, $prefix.$index.'.', 0, false);
            }
            elseif($fullPrefix) {
                $flattenedParts = flattenParts($part->parts, $flattenedParts, $prefix.$index.'.');
            }
            else {
                $flattenedParts = flattenParts($part->parts, $flattenedParts, $prefix);
            }
            unset($flattenedParts[$prefix.$index]->parts);
        }
        $index++;
    }

    return $flattenedParts;
           
}


function getPart($con, $messageNumber, $partNumber, $encoding) {
   
    $data = imap_fetchbody($con, $messageNumber, $partNumber);
    switch($encoding) {
        case 0:
            return $data;
            break; // 7BIT
        case 1:
            return $data;
            break;// 8BIT
        case 2:
            return $data; // BINARY
            break;
        case 3:
            return base64_decode($data);  // BASE64
            break;
        case 4:
            return quoted_printable_decode($data); // QUOTED_PRINTABLE
            break;
        case 5:
            return $data; // OTHER
            break;
    }   
   
}


function getFilenameFromPart($part) {

    $filename = '';
   
    if($part->ifdparameters) {
        foreach($part->dparameters as $object) {
            if(strtolower($object->attribute) == 'filename') {
                $filename = $object->value;
            }
        }
    }

    if(!$filename && $part->ifparameters) {
        foreach($part->parameters as $object) {
            if(strtolower($object->attribute) == 'name') {
                $filename = $object->value;
            }
        }
    }
   
    return $filename;
   
}

/** functions used for getting message **/

How to read specific message

$username = 'mygmail@gmail.com'; //Gmail address
$password = 'gma12#@c'; //Gmail password
error_reporting(0);

 $bodyId=35; //This is message Id

 //Read Message from indebox
    $hostname = '{imap.gmail.com:993/imap/ssl}INBOX';
   
   //Read Message from Trash
    // $hostname = '{imap.gmail.com:993/imap/ssl}[Gmail]/Trash';
 
   //Read Message from Sent
 //$hostname = '{imap.gmail.com:993/imap/ssl}[Gmail]/Sent Mail';




$con = imap_open($hostname, $username, $password);
$messageNumber = $bodyId;
$structure = imap_fetchstructure($con, $messageNumber);
//pr($structure);die;

$message='';
if(!empty($structure->parts)){
 
 $flattenedParts = flattenParts($structure->parts); 
 foreach($flattenedParts as $partNumber => $part) {  
  switch($part->type) {
     
   case 0:
    // the HTML or plain text part of the email
    $message = getPart($con, $messageNumber, $partNumber, $part->encoding);
    // now do something with the message, e.g. render it
      
   break;
    
   case 1:
    // multi-part headers, can ignore
    
   break;
   case 2:
    // attached message headers, can ignore
   break;
    
   case 3: // application
   case 4: // audio
   case 5: // image
   case 6: // video
   case 7: // other
   //pr($part);
   //echo "
$$$$$";
    $filename = getFilenameFromPart($part);
    if($filename) {
     // it's an attachment
     $attachment = getPart($con, $messageNumber, $partNumber, $part->encoding);
        if (empty($filename))
      $filename = $filename;
       
     if (empty($filename))
      $filename = time() . ".dat";
     $folder = "attachment";
     if (!is_dir($folder)) {
      mkdir($folder);
     }
     $fp = fopen("./" . $folder . "/" . $messageNumber . "-" . $filename, "w+");
     fwrite($fp, $filename);
     fclose($fp);
     // now do something with the attachment, e.g. save it somewhere
     $message.='





' . $messageNumber . '-' . $filename . ' 

';
    }
      
   break;
    
  }
    
 }

}else{
 $message = getPart($con, $messageNumber, 1, $structure->encoding);

}
 



if($message){
 $message=$message;   
   
}
echo $message;
imap_close($con, CL_EXPUNGE);

Friday, 10 March 2017

Node js Tutorial for beginners with examples - Page 3

Question: How do I pass command line arguments? and how i get the arguments?
Pass argument through Command line

node main.js one two=three four

Script to read value from command line

process.argv.forEach(function (val, index, array) {
  console.log(index + '=> ' + val);
});

Output

0=> node
1=> /data/node/main.js
2=> one
3=> two=three
4=> four

Question: How can we debug Node.js applications?
Install node-inspector

npm install -g node-inspector

Question: How to debug application through node-inspector

node-debug app.js

Question: What is the purpose of Node.js module.exports?
module.exports is the object that's run as the result of a require call.
file: main.js

var sayHello = require('./sayhellotoworld');
sayHello.run(); // "Hello World!"

sayhellotoworld.js

exports.run = function() {
    console.log("Hello World!");
}

Question: How to exit in Node.js?

process.exit();

End with specific code.

process.exit(1);

Question: Read environment variables in Node.js?

process.env.ENV_VARIABLE

Question: How to pars a JSON String?

var str = '{ "name": "Web technology experts notes", "age": 98 }';
var obj = JSON.parse(str);

Question: How to get GET (query string) variables in Node.js? include the "url" module

var url = require('url');
var url_parts = url.parse(request.url, true);
var query = url_parts.query;
console.log(query);

Question: How to get GET (query string) variables in Express.js?

var express = require('express');
var app = express();

app.get('/', function(req, res){
  res.send('id: ' + req.query.id);
});

Question: How to make ajax call in nodeJS?

var request = require('request');
request.post(
    'http://www.example.com/action',
    { json: { name: 'web technology experts',age:'15' } },
    function (error, response, body) {
        if (!error && response.statusCode == 200) {
            console.log(body)
        }
    }
);

Monday, 13 March 2017

IMAP Gmail read messages details from inbox

Friday, 10 March 2017

Node js Tutorial for beginners with examples - Page 3

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