twomcm's user page

These are two Wikka modules i have written. Enjoy.

Any comments would be appreciated.

Since i do not have access to Internet Exploder YMMV if you are accessing these page with that browser.

Screen shot of an example ( due to image editing problems, "Standard file embed" has Type: and Size: duplicated ).

If you want to contact me use paranoidgeek@gmail.com

I doubt if i will be visting this page often.

Blob details :

Blob ( as i have called it ) is hash orientated. The three modes for displaying the file are :
  1. Description. This gives a box with the file's details and allows has view and download buttons. Exmaple code : {{blob hash="SHA1 SUM"}}
  2. Image embed. This inserts the image as <img src="yadadad" />. Also 'wrapped' with an <a href=" "></a> pointing to the same URL as the img src. Requires the handerler file installed and the file's type must start with 'image' ( e.g. image/png). Example code : {{blob hash="SHA1 SUM" type="image"}}
  3. Image with border. Same as above but with a border ( using class="border" ). Example code : {{blob hash="SHA1 SUM" type="image_wb"}}
  4. Link. Just the file name wrapped with a <a href=" "> pointing to the file's view URL.



/action/blob.php
<?php
/**
    This allows files to be inserted into the DB as blobs.

    @author     Matthew Peterson <paranoidgeek@gmail.com>
    @author-nick    twomcm
    @date       November 2005
    @version    1.1
    @changlog
            1.3 Image + link
            1.2 Changed so that it will only allow uploads if the user has R/W to the page.
            1.1 Minor bugs fixed
            1.0 Complete
            0.1 blank
    @license    GPL v 2
    @example    List
                {{blob list="yes"}}
            Display
                {{blob hash="SHA1 SUM"}}
            Image
                {{blob hash="SHA1 SUM" type="image"}}
            link
                {{blob hash="SHA1 SUM" type="link"}}
*/


if($_POST['blob_sha1'] && !$_POST['blob_delete']){ // get file
    $row = $this->LoadSingle("SELECT LENGTH(`data`) as `size`, `hash`, `name`, `type`, `data` ".
        "FROM ".$this->config["table_prefix"]."blob WHERE `hash` = '".mysql_escape_string($_POST['blob_sha1'])."' ");
    if($row){
        while(@ ob_end_clean());
            // clean out every thing.
       
        header("Content-Length: ".$row['size']);
        header("Pragma: no-cache");
        header("Content-Type: ".$row['type']);
        if($_POST['download'] )
            header('Content-Disposition: attachment; filename="'.$row['name'].'"');
           
        echo $row['data'];

        die();
    }else{
        while(@ ob_end_clean());
       
        echo "Sorry the system was unable to find the requested item. \n";
       
        die();
    }   
}elseif(is_array($vars) && $vars['hash']){
    $row = $this->LoadSingle("SELECT LENGTH(`data`) as `size`, `hash`, `name`, `type`, `upload_date` ".
        "FROM ".$this->config["table_prefix"]."blob WHERE `hash` = '".mysql_escape_string($vars['hash'])."' ");
    if($row){
        if(strtolower($vars['type']) == 'link'){
            echo "<a href=\"".$this->href('blob',$this->GetPageTag(),'action=view&amp;hash='.$row['hash'])."\">";
            echo "{$row['name']}";
            echo "</a>";
           
        }elseif(strtolower($vars['type']) == 'image'){
            echo "<a href=\"".$this->href('blob',$this->GetPageTag(),'action=view&amp;hash='.$row['hash'])."\">";
            echo " <img src=\"".$this->href('blob',$this->GetPageTag(),'action=view&amp;hash='.$row['hash'])."\" />";
            echo "</a>";
        }else{ 
            echo $this->FormOpen();
           
            echo "<div class=\"code\">\n";
            echo "Filename: ".$row['name']."<br />\n";
            echo "Type: ".$row['type']."<br />\n";
            echo "Size: ".$row['size']." Bytes<br />\n";
            echo "</div>\n";
           
            echo '<input type="hidden" name="blob_sha1" value="'.$row['hash']."\" />\n";
           
            echo '<input type="submit" name="download" style="line-height:10px;float:right;'.
                'vertical-align:middle;margin-right:20px; margin-top: 0px; font-size: 10px; '.
                'color:#000;  font-weight: normal; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
                'text-decoration: none; height: 18px;" value="download" title="Download this item" />'."\n";
           
            echo '<input type="submit" name="view" style="line-height:10px;float:right;'.
                'vertical-align:middle;margin-right:20px; margin-top: 0px; font-size: 10px; '.
                'color:#000;  font-weight: normal; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
                'text-decoration: none; height: 18px;" value="view" title="View this item" />'."\n";
               
            // FIXME remove unneeded style items
           
            echo $this->FormClose();
        }
    }else{
        echo "<div class=\"code\">\n";
        echo "Sorry the system was unable to find the requested item. <br />\n";
        echo "HASH : {$vars['hash']}\n";
        echo "</div>\n";
    }
}elseif(is_array($vars) && $vars['list']){ // $var-list

    if($_POST['blob_delete'] && $this->HasAccess("write") ){
        $this->Query("DELETE FROM ".$this->config["table_prefix"]."blob WHERE hash = '".$_POST['blob_sha1']."'");
       
        unset($_POST['blob_delete']);
        unset($_POST['blob_sha1']);
    }

    if($_FILES['blob_upload']['name'] && $this->HasAccess("write") && !$_FILES['blob_upload']['error'] ){
       
        $fileLocation = $_FILES['blob_upload']['tmp_name'];
       
        $fd = fopen($fileLocation, "r");
        $t = fread($fd, filesize($fileLocation));
        fclose($fd);
        unlink($fileLocation);
       
        if(strlen($t) <= 1000000){ // 1 million bytes
                $this->Query("INSERT INTO ".$this->config["table_prefix"]."blob ".
                "(`data`, `name`, `type`, `hash`, `upload_date`) ".
                "VALUES ('".mysql_escape_string($t)."' ,".  // data
                "'".$_FILES['blob_upload']['name']."' ,".   // name
                "'".$_FILES['blob_upload']['type']."' ,".   // type
                "'".sha1($t)."', ".                 // hash
                " NOW() " .                     //upload_date
                ")") ;
        }else{
            die ("Sorry the file you uploaded is too large ! You may only upload files of size 1MB or smaller.");
        }
        unset($t);
    }
   
       
    echo "<table>\n";
    $rows = $this->LoadAll("SELECT LENGTH(`data`) as `size`, `hash`, `name`, `type`, `upload_date` ".
        "FROM ".$this->config["table_prefix"]."blob ORDER BY `upload_date` DESC");
    echo "<tr><th>Hash</th><th>Name</th><th>Type</th><th>Size</th><th>Upload Date</th><th></th><th></th><th></th></tr>\n";
    foreach($rows as $row){
       
        echo "<tr>".
            "<td>{$row['hash']}</td>".
            "<td>{$row['name']}</td>".
            "<td>{$row['type']}</td>".
            "<td>{$row['size']}</td>".
            "<td>".date("Y F j, G:i:s", strtotime($row['upload_date']))."</td>";
           
           
           
        echo    '<td>';
        echo $this->FormOpen();
        echo '<input type="hidden" name="blob_sha1" value="'.$row['hash']."\" />\n";
        echo    '<input type="submit" name="view" style="font-size: 9px; '.
            'vertical-align:middle; color:#000; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
            'text-decoration: none; height: 16px;" value="view" title="view" />';
        echo $this->FormClose();
        echo    '</td>'."\n";               // view
           
           
           
        echo    '<td>';
        echo $this->FormOpen();
        echo '<input type="hidden" name="blob_sha1" value="'.$row['hash']."\" />\n";
        echo    '<input type="submit" name="download" style="font-size: 9px; '.
            'vertical-align:middle; color:#000; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
            'text-decoration: none; height: 16px;" value="download" title="download" />';
        echo $this->FormClose();
        echo    '</td>'."\n";               // download
           
           
           
        echo    '<td>';
        if($this->HasAccess("write")){
            echo $this->FormOpen();
            echo '<input type="hidden" name="blob_sha1" value="'.$row['hash']."\" />\n";
            echo    '<input type="submit" name="blob_delete" style="font-size: 9px; '.
                'vertical-align:middle; color:#000; font-family: Verdana, Arial, sans-serif; background-color: #FAA;'.
                'text-decoration: none; height: 16px;" value="delete" title="delete" '.
                'onclick="return confirm(\'Are you sure you want to do that?\')" />';       // delete + js confirm
            echo $this->FormClose();
        }
        echo    '</td>'."\n";
           
           
           
        echo    "</tr>\n";
    }
    unset($rows);
    echo "</table>\n";
    if($this->HasAccess("write")){
        echo"<form action=\"".$this->href()."\" method=\"post\" enctype=\"multipart/form-data\">\n";
        if (!$this->config["rewrite_mode"])
            echo"<input type=\"hidden\" name=\"wakka\" value=\"".$this->MiniHref()."\">\n";
        echo "<input type=\"file\" name=\"blob_upload\"></input>\n";
        echo "<input type=\"submit\" value=\"submit\"></input>\n";
        echo $this->FormClose();
    }
    //.. upload

}else{ // Bad setup
    echo "You have not configured the 'blob' action correctly.";
}
/*

SQL for creating the table :

CREATE TABLE `wikka_blob` (
  `hash` varchar(40) NOT NULL default '',
  `name` varchar(255) NOT NULL default '',
  `type` varchar(255) NOT NULL default '',
  `upload_date` datetime NOT NULL default '0000-00-00 00:00:00',
  `data` mediumblob NOT NULL,
 PRIMARY KEY  (`hash`)
) Type=MyISAM;

*/

?>




/handlers/page/blob.php
<?php
/**
    See /action/blob.php
*/


if($_GET['hash']){ // get file
    $row = $this->LoadSingle("SELECT LENGTH(`data`) as `size`, `hash`, `name`, `type`, `data` ".
        "FROM ".$this->config["table_prefix"]."blob WHERE `hash` = '".mysql_escape_string($_GET['hash'])."' ");
    if($row){
        while(@ ob_end_clean());
            // clean out every thing.
       
        header("Content-Length: ".$row['size']);
        header("Pragma: no-cache");
        header("Content-Type: ".$row['type']);
        if($_GET['action'] == 'download' )
            header('Content-Disposition: attachment; filename="'.$row['name'].'"');
           
        echo $row['data'];

        die();
    }else{
        while(@ ob_end_clean());
       
        echo "Sorry the system was unable to find the requested item. \n";
       
        die();
    }   
}else{ // Bad link
    echo "You have not configured the 'blob' handler correctly.";
}
?>




/actions/base64.php
<?php
/**
    This allows BASE-64 encoded files to be embedded in Wikka pages.
    This moddiffied version uses SHA1-hashes sent back to the script not the data

    @author     Matthew Peterson <paranoidgeek@gmail.com>
    @date       November 2005
    @version    1.1
    @changlog
            1.1 Add view button
            1.0 Changed to sending SHA to the script rather than the data.
            0.9 Orginal version
    @license    GPL v 2
    @example    This wikka example containes a random bit of data. {{base64 type="image/png" filename="pix1.png" data="FJSFNSIJFDisjdsjd=2/"}}
*/

   
if(is_array($vars) && $vars['data']){
   
    $vars['data'] = preg_replace('/\s+/', '', $vars['data']);
   
    $filename   = $vars['filename'] ? $vars['filename'] : 'Untitled.txt';
    $size       = (int)(strlen($vars['data'])*3/4);
    $type       = $vars['type'] ? $vars['type'] : 'text/plain';
    $sha1       = sha1($vars['data']);
   
    if($_POST['base64-sha1'] == $sha1){
   
        while(@ ob_end_clean());
            // clean out every thing.
       
        $data = base64_decode($vars['data']);
       
        header("Content-Length: ".strlen($data));
        header("Pragma: no-cache");
        header("Content-Type: $type");
        if($_POST['download'] )
            header("Content-Disposition: attachment; filename=\"$filename\"");
       
        echo $data;
       
        die();
       
    }else{
        echo $this->FormOpen();
       
        echo "<div class=\"code\">\n";
        echo "Filename: ".$filename."<br />\n";
        echo "Type: ".$type."<br />\n";
        echo "Size: ".$size." Bytes<br />\n";
        echo "</div>\n";
       
                   
        echo '<input type="submit" name="download" style="line-height:10px;float:right;'.
            'vertical-align:middle;margin-right:20px; margin-top: 0px; font-size: 10px; '.
            'color:#000;  font-weight: normal; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
            'text-decoration: none; height: 18px;" value="download" title="Download this item" />'."\n";
       
        echo '<input type="submit" name="view" style="line-height:10px;float:right;'.
            'vertical-align:middle;margin-right:20px; margin-top: 0px; font-size: 10px; '.
            'color:#000;  font-weight: normal; font-family: Verdana, Arial, sans-serif; background-color: #DDD;'.
            'text-decoration: none; height: 18px;" value="view" title="View this item" />'."\n";
           
        // FIXME remove unneeded style items
        echo '<input type="hidden" name="base64-sha1" value="'.$sha1."\" />\n";
       
        echo $this->FormClose();
    }
}else{
    echo "You have not configured the 'base64' action correctly.";
}
?>
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