update

php/Classes/html2pdf.class.php

@@ -0,0 +1,229 @@
+<?php
+/*
+pdfLayer class - Convert html to pdf
+version 1.0 2/8/2016
+
+API reference at https://pdflayer.com/documentation
+
+Copyright (c) 2016, Wagon Trader
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+class html2pdf{
+    
+    //*********************************************************
+    // Settings
+    //*********************************************************
+    
+    //Your pdfLayer API key
+    //Available at https://pdflayer.com/product
+    private $apiKey = 'YOUR_API_KEY_HERE';
+    
+    //API endpoint
+    //only needs to change if the API changes location
+    private $endPoint = 'http://api.pdflayer.com/api/convert';
+    
+    //Secret Keyword defined in your pdfLayer dashboard
+    //leave blank if you have not activated this feature
+    private $secretKey = '';
+    
+    //API key/value pair params
+    public $params = array();
+    
+    //response capture
+    public $capture;
+    
+    /*
+    method:  class construction
+    usage:   html2pdf([string url]);
+    params:  url = URL to web page
+    
+    The pdfLayer API requires a valid webpage URL or posted HTML to convert.
+    
+    returns: null
+    */
+    public function __construct($url=''){
+        
+        if( !empty($url) ){
+            
+            $this->params['document_url'] = $url;
+            if( !empty($this->secretKey) ){
+                
+                $secret = md5($url.$this->secretKey);
+                $this->params['secret_key'] = $secret;
+                
+            }
+            
+        }
+        
+    }
+    
+    /*
+    method:  convertHTML
+    usage:   convertHTML([redirect=false]);
+    params:  redirect = redirect browser to api
+    
+    This method will query the api to convert the html to pdf.
+    If redirect is set to true, browser will be redirected directly to api.
+    
+    returns: null
+    */
+    public function convertHTML($redirect=false){
+        
+        if( empty($this->params['document_url']) AND empty($this->params['document_html']) ){
+            
+            throw new Exception('A document must be provided!');
+            
+        }
+        
+        $request = $this->buildRequest();
+        
+        $postData = array();
+        
+        if( !empty($this->params['document_html']) ){
+            
+            $postData['document_html'] = $this->params['document_html'];
+            
+        }
+        
+        if( !empty($this->params['header_html']) ){
+            
+            $postData['header_html'] = $this->params['header_html'];
+            
+        }
+        
+        if( $redirect ){
+            
+            header('location: '.$request);
+            exit;
+            
+        }
+        
+        $ch = curl_init($request);
+        curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
+        curl_setopt($ch,CURLOPT_POST,true);
+        curl_setopt($ch,CURLOPT_POSTFIELDS,http_build_query($postData));
+        $this->capture = curl_exec($ch);
+        curl_close($ch);
+        
+        $response = json_decode($this->capture);
+        if( is_object($response) ){
+            
+            throw new Exception($response->error->info);
+            
+        }
+        
+    }
+    
+    /*
+    method:  downloadCapture
+    usage:   downloadCapture([string fileName='']);
+    params:  fileName = The name of the file written to disk
+    
+    This method will download the pdf to the client.
+    
+    returns: null
+    */
+    public function downloadCapture($fileName=''){
+        
+        $fileName = ( empty($fileName) ) ? 'capture' : $fileName;
+        
+        if( empty($this->capture) ){
+            
+            throw new Exception('No pdf has been captured');
+            
+        }
+        
+        header('Content-Type: application/pdf');
+        header('Content-Disposition: attachment; filename="'.$fileName.'"');
+        header('Content-Transfer-Encoding: binary');
+        
+        echo $this->capture;
+        
+    }
+    
+    /*
+    method:  displayCapture
+    usage:   displayCapture(void);
+    params:  none
+    
+    This method will display the pdf to the browser.
+    
+    returns: null
+    */
+    public function displayCapture(){
+        
+        if( empty($this->capture) ){
+            
+            throw new Exception('No image has been captured');
+            
+        }
+        
+        header('Content-Type: application/pdf');
+        
+        echo $this->capture;
+        
+    }
+    
+    /*
+    method:  buildRequest
+    usage:   buildRequest(void);
+    params:  none
+    
+    This method will build the api request url.
+    
+    returns: api request url
+    */
+    public function buildRequest(){
+        
+        $request = $this->endPoint.'?access_key='.$this->apiKey;
+        
+        foreach( $this->params as $key=>$value ){
+            
+            if( $key == 'document_url' ){
+                
+                $request .= '&document_url='.urlencode($value);
+                
+            }elseif( $key == 'document_html' ){
+                //this will be posted
+                
+            }else{
+                
+                $request .= '&'.$key.'='.$value;
+                
+            }
+            
+        }
+        
+        return $request;
+        
+    }
+    
+    /*
+    method:  setParam
+    usage:   setParam(string key, string value);
+    params:  key = key of the params key/value pair
+             value =  value of the params key/value pair
+    
+    add or change the params key/value pair specified.
+    
+    returns: null
+    */
+    public function setParam($key,$value){
+        
+        $this->params[$key] = $value;
+        
+    }
+}
+?>