From d03428a2e449f8d5e87bbc7bb55339ede8fd3b69 Mon Sep 17 00:00:00 2001
From: Christopher Vagnetoft <cvagnetoft@gmail.com>
Date: Tue, 31 Oct 2017 00:57:12 +0100
Subject: [PATCH] Initial commit

---
 .gitignore           |   2 +
 README               |   2 +
 composer.json        |  18 ++++++
 src/LprException.php |   7 +++
 src/PrintJob.php     | 145 +++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 174 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README
 create mode 100644 composer.json
 create mode 100644 src/LprException.php
 create mode 100644 src/PrintJob.php

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ff72e2d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+/composer.lock
+/vendor
diff --git a/README b/README
new file mode 100644
index 0000000..cc81f41
--- /dev/null
+++ b/README
@@ -0,0 +1,2 @@
+noccylabs/lpr
+=============
diff --git a/composer.json b/composer.json
new file mode 100644
index 0000000..9be7abe
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,18 @@
+{
+    "name": "noccylabs/lpr",
+    "description": "Print documents and images through lpr",
+    "type": "library",
+    "license": "GPL-3.0",
+    "authors": [
+        {
+            "name": "Christopher Vagnetoft",
+            "email": "cvagnetoft@gmail.com"
+        }
+    ],
+    "require": {},
+    "autoload": {
+        "psr-4": {
+            "NoccyLabs\\Lpr\\": "src/"
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/LprException.php b/src/LprException.php
new file mode 100644
index 0000000..26de2aa
--- /dev/null
+++ b/src/LprException.php
@@ -0,0 +1,7 @@
+<?php
+
+namespace NoccyLabs\Lpr;
+
+class LprException extends \RuntimeException
+{}
+
diff --git a/src/PrintJob.php b/src/PrintJob.php
new file mode 100644
index 0000000..5c98437
--- /dev/null
+++ b/src/PrintJob.php
@@ -0,0 +1,145 @@
+<?php
+
+namespace NoccyLabs\Lpr;
+
+class PrintJob
+{
+    /** @var string The print server to use (-H) */
+    protected $server;
+    /** @var string The name of the print job (-T) */
+    protected $jobName;
+    /** @var string Document filename */
+    protected $document;
+    /** @var string The printer to use as destination[/instance] (-P) */
+    protected $printer;
+    /** @var array The job options (-o) */
+    protected $options = [];
+    /** @var bool If true, encryption is forced when communicating with server (-E) */
+    protected $forceEncryption = false;
+    /** @var bool If true, the named print files will be deleted by lpr after print (-r) */
+    protected $deleteAfterPrint = false;
+
+    /**
+     * Constructor; creates a new print job.
+     * 
+     * 
+     */
+    public function __construct($document, $printer=null, $server=null)
+    {
+        $this->document = $document;
+        $this->printer = $printer;
+        $this->server = $server;
+    }
+
+    /**
+     * 
+     * 
+     * @return PrintJob
+     */
+    public function setPrinter($printer)
+    {
+        $this->printer = $printer;
+        return $this;
+    }
+
+    /**
+     * 
+     * 
+     * @return PrintJob
+     */
+    public function setMedia($media)
+    {
+        $this->media = $media;
+        return $this;
+    }
+
+    /**
+     * 
+     * 
+     * @param string $name The print job name to use
+     * @return PrintJob
+     */
+    public function setJobName($name)
+    {
+        $this->jobName = $name;
+        return $this;
+    }
+
+    /**
+     * 
+     * 
+     * @return PrintJob
+     */
+    public function setServer($server, $port)
+    {
+        $this->server = $server . (!!$port?":{$port}":"");
+        return $this;
+    }
+
+    /**
+     * 
+     * 
+     * @return PrintJob
+     */
+    public function setOption($option, $value)
+    {
+        $this->options[$option] = $value;
+        return $this;
+    }
+
+    /**
+     * Attempt to submit the job using the lpr command.
+     * 
+     * 
+     */
+    public function submit()
+    {
+        $options = [];
+        if ($this->server !== null) {
+            $options[] = "-H";
+            $options[] = $this->server;
+        }
+        if ($this->printer !== null) {
+            $options[] = "-P";
+            $options[] = $this->printer;
+        }
+        if ($this->jobName !== null) {
+            $options[] = "-T";
+            $options[] = $this->jobName;
+        }
+        foreach ($this->options as $option=>$value) {
+            $options[] = "-o";
+            if ($value === true) {
+                $options[] = $option;
+            } else {
+                $options[] = $option."=".$value;
+            }
+        }
+
+        $optionString = join(" ", array_map("escapeshellarg", $options));
+        $cmdLine = sprintf("lpr %s %s", $optionString, escapeshellarg($this->document));
+
+        $ds = [
+            1 => [ 'pipe', 'w' ],
+            2 => [ 'pipe', 'w' ]
+        ];
+        $proc = proc_open($cmdLine, $ds, $pipes);
+
+        do {
+            usleep(10000);
+            $status = proc_get_status($proc);
+        } while ($status['running']);
+        
+        if ($status['exitcode'] > 0) {
+            $stderr = stream_get_contents($pipes[2]);            
+            throw new LprException(
+                sprintf("lpr exited with code %d: %s", $status['exitcode'], $stderr)
+            );
+        }
+
+        proc_close($proc);
+
+    }
+
+}
+