Unterschiede

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--- networking [2014/10/31 21:14] – karl
+++ networking [2018/03/26 00:44] (aktuell) – [php.ini] karl
@@ Zeile 10: / Zeile 10: @@
 {{:sockettest:screenshot-udp.png?direct&200|}}
-==== Fiddler Web Debugger ====
+===== Fiddler Web Debugger =====
+.10.2014\\
 http://www.telerik.com/fiddler \\
 Seems to be a quite useful tool for having a look on the web traffic.
+===== HTTP GET vs. POST =====
+.11.2014\\
+Let's have a look at this simple HTML code:
+  <html><body>
+  <h3>Leave a comment:</h3>
+  <form name="formExample1" action="http://localhost:8080/process.php" method="post">
+  Name: <br> <input type="text" name="name" value="Jon Doe"> <br>
+  Rating: <br>
+  <input type="radio" name="rating" value="1" > 1
+  <input type="radio" name="rating" value="2" checked="true"> 2
+  <input type="radio" name="rating" value="3"> 3 <br>
+  Comment: <br> <textarea name="comment">enter comments here ...</textarea> <br><br>
+  <input type="submit" value="Submit Comment">
+  </form>
+  </body></html>
+It looks like this in the browser: \\
+{{networking:form-screenshot.png?direct&200|}}
+I set up a local TCP-server with [[#SocketTest]] on port 8080. I open the html-file above in my browser, and click submit. What the server receives is:
+  POST /process.php HTTP/1.1
+  Host: localhost:8080
+  User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0
+  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
+  Accept-Language: en-US,en;q=0.5
+  Accept-Encoding: gzip, deflate
+  Connection: keep-alive
+  Content-Type: application/x-www-form-urlencoded
+  Content-Length: 53
+  name=Jon+Doe&rating=2&comment=enter+comments+here+...
+As we see, we get all the input-fields (name-value-pairs), which are defined in the form. The data is transmitted in the HTTP-message-body. This is, because we used the **method="post"**.\\
+When we use **method="get"**, the server receives folloing message:
+  GET /process.php?name=Jon+Doe&rating=2&comment=enter+comments+here+... HTTP/1.1
+  Host: localhost:8080
+  User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:29.0) Gecko/20100101 Firefox/29.0
+  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
+  Accept-Language: en-US,en;q=0.5
+  Accept-Encoding: gzip, deflate
+  Connection: keep-alive
+As we can see now, all the name-value-pairs are transmitted in the HTTP-message-header, and the message has no body.
+A HTTP request header ends with an empty line. The new line characters are <CR><LF>, as used in the Windows-world.
+===== nmap =====
+check accessible ports on a computer in the network or on the internet:
+  nmap -A zeilhofer.co.at
+===== Learning HTML =====
+http://www.simplehtmlguide.com\\
+[[https://www.youtube.com/watch?v=bWPMSSsVdPk|Youtube: Learn HTML in 12 Minutes]]\\
+[[https://www.youtube.com/watch?v=KJ13lX20FqU|Youtube: Learn more HTML in 12 Minuts]]
+[[http://library.albany.edu/imc/pdf/HTML-XHTML_Tag_Sheet.pdf|HTML, XHTML and HTML5 Cheat Sheet as a PDF]]
+===== Learning PHP =====
+I have created a printable version of "PHP Programming" on wikibooks.org\\
+https://en.wikibooks.org/wiki/Wikibooks:Collections/PHP_Programming
+Here are links to my first PHP files:\\
+http://www.zeilhofer.co.at/php_learning/helloworld.php \\
+<file php helloworld.php>
+<?php
+echo "Hello World!<br>";
+?>
+</file>
+http://www.zeilhofer.co.at/php_learning/myfirstphpfile.php?relay1=5&relay2=7
+<file php myfirstphpfile.php>
+<?php
+echo "Hello World!<br>";
+// print unix time stamp (in seconds)
+// append strings with dot
+echo "unix time = ".time()."s<br>";
+// receive arguments form the url (webrequest):
+// declare variables:
+$relay1 = $_REQUEST['relay1'];
+$relay2 = $_REQUEST['relay2'];
+echo "relay1 = $relay1 and relay2 = $relay2";
+?>
+</file>
+===== php.ini =====
+  diff /etc/php5/apache2/php.ini /usr/share/doc/php5-common/examples/php.ini-development
+If this command returns nothing, then your PHP uses dev configuration.
+  diff /etc/php5/apache2/php.ini /usr/share/php5/php.ini-production
+If this command returns nothing your PHP uses production configuration.
+If you want to use dev configuration,
+  sudo cp /usr/share/doc/php5-common/examples/php.ini-development /etc/php5/apache2/php.ini
+If you want to use production configuration,
+  sudo cp /usr/share/php5/php.ini-production /etc/php5/apache2/php.ini
+{{tag>software english web programming}}