PHP/Java Bridge SvnRepo

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php-java-bridge NEWS -- history of user-visible changes.

Please send bug reports, questions and suggestions to
<php-java-bridge-users@lists.sourceforge.net>.

Version 3.0.3:

* Communication via named pipes: When the backend is running inside a
  Unix servlet engine or application server, the bridge uses named pipes
  instead of TCP sockets. This communication channel is 1.5 times faster
  than unix domain sockets and 2 times faster than TCP sockets. TCP
  sockets are still used on systems which do not support standard Unix
  named pipes (Windows).

* Because of the above change the bridge now works with the "Sun Java
  System Application Server Platform Edition 8" on Unix.

* TCP sockets only listen on the local (127.0.0.1) interface unless
  the system property "php.java.bridge.promiscuous" is set to true.

* The apache jsf "myfaces" implementation, which caused problems with
  various application servers or servlet engines, has been replaced by
  JSF 1.1.01.

Version 3.0.2:

* Backward compatibility with 2.0.8: The java.servlet can now have
  three values:

    On  : Selects the default servlet context, which is
          /JavaBridge/JavaBridge.php

    Off : Switches off the HTTP tunnel

    User: Selects the "current" servlet context. A request:
          http://foo.com/context1/test.php connects test.php to the
          backend: http://<java.hosts[0]>/context1/test.php. 

          Example:
          [java]
          java.hosts=127.0.0.1:8080
          java.servlet=User

          Request:
          http://foo.com/contextA/order.php

          Then order.php sends a PUT request to the backend:
          http://127.0.0.1:8080/contextA/order.php        
      
* The servlet mapping for PhpJavaServlet has been
  removed. java.servlet=User or
  java.servlet=/JavaBridge/PhpJavaServlet.php can be used instead.

* When the java VM was started as a child of apache (OPTION#3) and
  apache sent out a kill signal to all childs in its process group, the
  guard process (which observes the VM) could be killed. After that one
  had to kill the java child manually. Since version 3.0.2 the guard
  detaches from the apache process group, too

* The PHP5/PHP6 array access and iterator interface should be much
  faster now. Especially the array access was incredibly inefficient
  as it allocated a new instance of PhpMap for each access.


Version 3.0.1:

* JSR223 API: It is now possible to run php scripts from java. Scripts
  are invoked using a CPS style, a CGI binary is started if necessary
  (if Apache/IIS are not running).

   Example:

   PhpScriptEngine engine = new PhpScriptEngine();
   engine.put("key", "testVal");
   // Hold the script from 127.0.0.1:80 (Apache pool) hostage ...
   engine.eval(new URLReader(new URL("http://127.0.0.1:80/HelloWorld.php")));
   // ... call the php procedure HelloWorld.php::java_get_server_name() ...
   System.out.println(((Invocable)engine).call("java_get_server_name", new Object[]{}));
   // ... and release the script.
   engine.release();

  See the configure option --enable-script.

* Java Server Faces: It is possible to embed php scripts into
  frameworks. Requires php-faces.jar (see configure option
  --enable-faces=<myFaces.jar>). The implementation works with the RI
  and Apache myfaces implementation (included in the unsupported
  folder). See examples/java-server-faces for details.

* PHP 4 is no longer supported (the bridge still works with php4).

* The bridge no longer coerces return values. If you want to 
  cast a java string into a php string, use the cast operator, e.g:

    $string = new java("java.lang.String", "{HelloWorld}");
    $substring = $string->substring(1);
    $substring = $substring(0, $substring->length()-1);

    echo "Result: $substring"; // implicit cast
    echo (string)$substring;   // explicit cast
  
* When running in a servlet engine or application server, the bridge now
  supports a multi-user environment. Example tomcat setup which contains:

    webapps/userA/...
                  WEB-INF/lib/{JavaBridge.jar,php-servlet.jar}
                  WEB-INF/cgi/{php.ini,php-cgi-i386-linux.sh,java.so}
                  {sessionSharing.php,sessionSharing.jsp}
    
    webapps/userB/...
                  WEB-INF/lib/{JavaBridge.jar,php-servlet.jar}
                  WEB-INF/cgi/{php.ini,php-cgi-i386-linux.sh,java.so}
                  {sessionSharing.php,sessionSharing.jsp}


  Browser request for:

    http://myhost.com/userA/sessionSharing.php
    http://myhost.com/userA/sessionSharing.jsp

  Creates cookie with a PATH value: path=/userA


  Same browser request for:

    http://myhost.com/userB/sessionSharing.php
    http://myhost.com/userB/sessionSharing.jsp

  Creates cookie with a PATH value: path=/userB

  
* An administrator may setup a FastCGI PHP server or Apache/IIS as a
  frontend so that users don't have to copy their own php binaries into
  their WEB-INF/cgi/ folder. 
 
  1) Example: Apache/IIS/mod_jk connector:


  internet
  clients  <->  :80--->  Apache/IIS                          --->  J2EE AS
                            |    |                          /  /    |   |
                            |   mod_jk <-- jsp/servlet req./  /     |   |
                            |                                /     jsp  |
                            ---- php                        /           |
                            ---- php  <-- P-J-B PROTOCOL --/           servlet
                                 ...                                     ...

  J2EE port not visible to internet clients. Apache/IIS document root
  not used.

    
  2) Example: a shared document directory:


                :80--->  Apache/IIS
            /                |
           / php req.        ---- php
          /                  ---- php  <--| 
                                  ...     |
  internet                                |
  clients                                 |
          \                               |P-J-B
           \jsp/servlet req.              |PROTOCOL
            \                             |
                                          |
           |--> :8080--> J2EE AS          |
           |                 |            |
           |                 ---- jsp     |
           |                 ---- servlet |
           |                      ...     |
           -------------------------------|

  Apache/IIS and J2EE ports are accessible from the
  internet. Apache/IIS and the J2EE AS share the same document root.

  #2 is the recommended setup. Framework requests (e.g.: hello.jsf)
  go to port 8080, initial requests to :80 can be forwarded to the
  framework using the following php code:

  <?php
  // hello backing implementation
  function jsfValidateEntry(...) {...}
  ...
  // check if we're called from the JSF framework, redirect to
  // self.jsf otherwise.
  function redirect() {
    $target=dirname($_SERVER['PHP_SELF']);
    $name=basename($_SERVER['PHP_SELF'], ".php");
    header ("Location: http://$_SERVER[HTTP_HOST]:8080$target/$name.jsf");
  }
  java_context()->call(java_closure()) || redirect();
  ?>