Url Decode - online Url Dekoder

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URL Decoding in PHP
I am trying to decode this URL string using PHP's urldecode function:
```
urldecode("Ant%C3%B4nio+Carlos+Jobim");
```
This is supposed to output...
```
'Antônio Carlos Jobim'
```
...but instead is ouptutting this
```
'AntÃ´nio Carlos Jobim'
```
I've tested the string in a JS-based online decoder with great success, but can't seem to do this operation server side. Any ideas?
How to decode URL-encoded string in shell?
I have a file with a list of user-agents which are encoded.E.g.:
```
Mozilla%2F5.0%20%28Macintosh%3B%20U%3B%20Intel%20Mac%20OS%20X%2010.6%3B%20en
```
I want a shell script which can read this file and write to a new file with decoded strings.
```
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en
```
I have been trying to use this example to get it going but it is not working so far.
```
$ echo -e "$(echo "%31+%32%0A%33+%34" | sed 'y/+/ /; s/%/\\x/g')"
```
My script looks like:
```
#!/bin/bashfor f in *.log; do  echo -e "$(cat $f | sed 'y/+/ /; s/%/\x/g')" > y.logdone
```

In my java web application I have to construct a URL and then call the URL. While creating the URL I am encoding the parameter value using URLEncoder.encode("text","UTF-8") But when we get the parameter at the receiving end and decode it - it is not decoding properly. I tried setting the encoded value as request attribute this works fine. But can't use it as per client request.

Wrote following code to test URLEncoder & URLDecoder and URLCodec from Apache commons codec functions.

    StringBuffer sb = new StringBuffer("TestSpecialChar'` ~6 Æ æ  Ç  È  123");    //String testCharacters = "TestSpecialChar'` ~6 Æ æ  Ç  È  123";    String testCharacters = sb.toString();    try {        String encoded = URLEncoder.encode(testCharacters, "UTF-8");        System.out.println("URLEncoder : " + encoded);        System.out.println("URLDecoder : " + URLDecoder.decode(encoded, "UTF-8"));    } catch (UnsupportedEncodingException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }    URLCodec urlc = new URLCodec("UTF-8");    try {        String encoded = urlc.encode(testCharacters);        System.out.println("urlc.encode : " + encoded);        System.out.println("urlc.decode : " + urlc.decode(encoded));                } catch (EncoderException ee){        ee.printStackTrace();    } catch (DecoderException e) {        // TODO Auto-generated catch block        e.printStackTrace();    }    try {        String encoded = urlc.encode(testCharacters);        System.out.println("urlc.encode : " + encoded);        System.out.println("URLDecoder : " + URLDecoder.decode(encoded, "UTF-8"));    } catch (UnsupportedEncodingException e) {        // TODO Auto-generated catch block        e.printStackTrace();    } catch (EncoderException ee){        ee.printStackTrace();    }

This code works perfectly. Then I wrote a simple web application where I have two JSP page in which one is calling other with a encoded value in the URL. This is not showing the proper decoded value at the receiver end. Here is the code for your reference.

sender.jsp:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"pageEncoding="ISO-8859-1"%><%@ page language="java" import="java.net.URLEncoder"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Sender</title><script type="text/javascript">function send(){window.location='<%=request.getContextPath()%>/jsp/receiver.jsp?txt=<%=URLEncoder.encode("TestSpecialChar'` ~6 Æ æ  Ç  È  123","UTF-8")%>';}</script></head><body onload="javascript:send();"></body></html>

receiver.jsp:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"pageEncoding="ISO-8859-1"%><%@ page language="java" import="java.net.URLDecoder"%><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Receiver</title></head><body><% if (request.getAttribute("encoded") != null){ URLDecoder.decode(request.getAttribute("encoded").toString(),"UTF-8"); }if (request.getParameter("txt") != null){%><%=URLDecoder.decode(request.getParameter("txt").toString(),"UTF-8")%>inside if getparameter<%}%></body></html>

I get following output in the browser

TestSpecialChar'` ~6 Ã† Ã¦ Ã‡ Ãˆ 123 inside if getparameter

instead of

TestSpecialChar'` ~6 Æ æ Ç È 123 inside if getparameter

Can someone please let me know what is wrong in test code and what is difference between request attribute and parameter due to which the attribute is decoded properly whereas parameter does not?

Temp solution:Solved it by doing following things:1) Created a class which would replace some specific characters with UTF 8 code.2) Removed passing of character data as URL parameters.3) Making sure that call to external URL is UTF-8 encoded.4) Any value received from external URL or which in the application is decoded before using the value.

Correct solution:To over come this problem the application has to be designed and coded with i18n in mind and all the JSP page with UTF-8 encoding.

MySQL SELECT with URL Decode
Is there a way to perform a MySQL query and have one of the columns in the output directly urldecode, rather than have PHP do it.
For example this table 'contacts' would contain,
```
------------------------------------|name      |email                  |------------------------------------|John Smith|johnsmith%40hotmail.com|------------------------------------
```
```
SELECT * FROM `contacts`
```
Would output,

John Smith | johnsmith%40@hotmail.com
Is there something along the lines of,
```
SELECT name, urldecode(email) FROM `contacts`
```
To output,

John Smith | johnsmith@hotmail.com
django: how to consume incoming POST data as a file-like obj for streaming processing

I'm using python + Django to handle incoming web requests that can post a large amount of JSON attached as one of the POST data fields (e.g. var1=abc&json_var=lots_of_data&other_var=xxx). I'd like to process the JSON in a streaming fashion with my own streaming json parser which takes a file-like handle as its input argument. It appears from https://docs.djangoproject.com/en/1.11/ref/request-response/ that this is feasible, using HttpRequest.__iter__(), but I can't find any examples of how to achieve this with my own code (i.e. not just importing a library like xml.etree.ElementTree).
Basically, I'd like to do the following:
POST request w/ big JSON => Django/python => create file-like handle to read POST => streaming url decoder => streaming JSON processor
I can use ijson for the streaming JSON processor. How do I fill in the two gaps for creating a file-like handle to the POST data and passing it to a streaming url decoder? Would prefer not to roll my own of either but I suppose if necessary I could.

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