aboutsummaryrefslogtreecommitdiff
path: root/actions/upload.php
blob: 1657210ed0c1ffc7cce90d626af320c8a8434149 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
<?php
	/**
	 * Elgg multi-image uploader action
	* 
	* This will upload up to 10 images at at time to an album
	 */

	global $CONFIG;
	include dirname(dirname(__FILE__)) . "/lib/resize.php";

	// Get common variables
	$access_id = (int) get_input("access_id");
	$container_guid = (int) get_input('container_guid', 0);
	if (!$container_guid)
		$container_guid == $_SESSION['user']->getGUID();

	$maxfilesize = get_plugin_setting('maxfilesize','tidypics'); 
	if (!$maxfilesize)
		$maxfilesize = 5; // default to 5 MB if not set 
	$maxfilesize = 1024 * 1024 * $maxfilesize; // convert to bytes from MBs

	$image_lib = get_plugin_setting('image_lib', 'tidypics');
	if (!$image_lib)
		$image_lib = 'GD';

	// post limit exceeded
	if (count($_FILES) == 0) {
		trigger_error('Tidypics warning: user exceeded post limit on image upload', E_USER_WARNING);
		register_error('Too many large images - try to upload fewer or smaller images');
		forward(get_input('forward_url', $_SERVER['HTTP_REFERER']));
	}

	// test to make sure at least 1 image was selected by user
	$num_images = 0;
	foreach($_FILES as $key => $sent_file) {
		if (!empty($sent_file['name']))
			$num_images++;
	}
	if ($num_images == 0) {
		// have user try again
		register_error('No images were selected. Please try again');
		forward(get_input('forward_url', $_SERVER['HTTP_REFERER']));
	}

	$uploaded_images = array();
	$not_uploaded = array();
	$error_msgs = array();
	foreach($_FILES as $key => $sent_file) {
		
		// skip empty entries 
		if (empty($sent_file['name']))
			continue;
		
		$name = $sent_file['name'];
		$mime = $sent_file['type'];
		
		if ($sent_file['error']) {
			array_push($not_uploaded, $sent_file['name']);
			if ($sent_file['error'] == 1) {
				trigger_error('Tidypics warning: image exceed server php upload limit', E_USER_WARNING);
				array_push($error_msgs, 'Image was too large in MB');
			}
			else {
				array_push($error_msgs, 'Unknown upload error');
			}
			continue;
		}
		
		//make sure file is an image
		if ($mime != 'image/jpeg' && $mime != 'image/gif' && $mime != 'image/png' && $mime != 'image/pjpeg') {
			array_push($not_uploaded, $sent_file['name']);
			array_push($error_msgs, 'Not a known image type');
			continue;
		}

		// make sure file does not exceed memory limit
		if ($sent_file['size'] > $maxfilesize) {
			array_push($not_uploaded, $sent_file['name']);
			array_push($error_msgs, 'Image was too large in MB');
			continue;
		}
		
		// make sure the in memory image size does not exceed memory available - GD only
		$imginfo = getimagesize($sent_file['tmp_name']);
		$mem_avail = ini_get('memory_limit');
		$mem_avail = rtrim($mem_avail, 'M');
		$mem_avail = $mem_avail * 1024 * 1024;
		if ($image_lib === 'GD') {
			$mem_required = 5 * $imginfo[0] * $imginfo[1];
			$mem_avail = $mem_avail - memory_get_peak_usage() - 4194304; // 4 MB buffer
			if ($mem_required > $mem_avail) {
				array_push($not_uploaded, $sent_file['name']);
				array_push($error_msgs, 'Image was too large in pixels');
				trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
				continue;
			}
		} else if ($image_lib === 'ImageMagick') {  // this will be for PHP ImageMagick
/*
			$mem_required = 5 * $imginfo[0] * $imginfo[1];
			$mem_avail = $mem_avail - memory_get_peak_usage() - 4194304; // 4 MB buffer
			if ($mem_required > $mem_avail) {
				array_push($not_uploaded, $sent_file['name']);
				trigger_error('Tidypics warning: image memory size too large for resizing so rejecting', E_USER_WARNING);
				continue;
			}
*/
		}

		//this will save to users folder in /image/ and organize by photo album
		$prefix = "image/" . $container_guid . "/";
		$file = new ElggFile();
		$filestorename = strtolower(time().$name);
		$file->setFilename($prefix.$filestorename);
		$file->setMimeType($mime);
		$file->originalfilename = $name;
		$file->subtype="image";
		$file->access_id = $access_id;
		if ($container_guid) {
			$file->container_guid = $container_guid;
		}
		$file->open("write");
		$file->write(get_uploaded_file($key));
		$file->close();
		$result = $file->save();

		if (!$result) {
			array_push($not_uploaded, $sent_file['name']);
			array_push($error_msgs, 'Unknown error saving the image on server');
			continue;
		}
		

		if ($image_lib === 'GD') {

			if (tp_create_gd_thumbnails($file, $prefix, $filestorename) != true) {
				trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
			}
			
		} else if ($image_lib === 'ToDo:ImageMagick') {  // ImageMagick PHP 
/*
			if (tp_create_imagick_thumbnails($file, $prefix, $filestorename) != true) {
				trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
			}
*/
		} else { // ImageMagick command line

			$thumbs = tp_create_imagick_cmdline_thumbnails($file, $prefix, $filestorename);
			if(!count($thumbs)) {
				trigger_error('Tidypics warning: failed to create thumbnails', E_USER_WARNING);
			}

			$album = get_entity($container_guid);
			$user = get_user_entity_as_row($album->owner_guid);
			$username = $user->username;

			$im_path = get_plugin_setting('convert_command', 'tidypics');
			if(!$im_path) {
				$im_path = "/usr/bin/";
			}
			if(substr($im_path, strlen($im_path)-1, 1) != "/") $im_path .= "/";
			
			$viewer = get_loggedin_user();
			$watermark_text = get_plugin_setting('watermark_text', 'tidypics');
			$watermark_text = str_replace("%username%", $viewer->username, $watermark_text);
			$watermark_text = str_replace("%sitename%", $CONFIG->sitename, $watermark_text);

			if( $watermark_text ) { //get this value from the plugin settings
				if( $thumbs["thumblarge"] ) {
					$ext = ".png";
					
					$watermark_filename = strtolower($watermark_text);
					$watermark_filename = preg_replace("/[^\w-]+/", "-", $watermark_filename);
					$watermark_filename = trim($watermark_filename, '-');
					
					$user_stamp_base = strtolower(dirname(__FILE__) . "/" . $viewer->name . "_" . $watermark_filename . "_stamp");
					$user_stamp_base = preg_replace("/[^\w-]+/", "-", $user_stamp_base);
					$user_stamp_base = trim($user_stamp_base, '-');
					
					if( !file_exists( $user_stamp_base . $ext )) { //create the watermark if it doesn't exist
						$commands = array();
						$commands[] = $im_path . 'convert -size 300x50 xc:grey30 -pointsize 20 -gravity center -draw "fill grey70  text 0,0  \''. $watermark_text . '\'" "'. $user_stamp_base . '_fgnd' . $ext . '"';
						$commands[] = $im_path . 'convert -size 300x50 xc:black -pointsize 20 -gravity center -draw "fill white  text  1,1  \''. $watermark_text . '\' text  0,0  \''. $watermark_text . '\' fill black  text -1,-1 \''. $watermark_text . '\'" +matte ' . $user_stamp_base . '_mask' . $ext;
						$commands[] = $im_path . 'composite -compose CopyOpacity  "' . $user_stamp_base . "_mask" . $ext . '" "' . $user_stamp_base . '_fgnd' . $ext . '" "' . $user_stamp_base . $ext . '"';
						$commands[] = $im_path . 'mogrify -trim +repage "' . $user_stamp_base . $ext . '"';
						$commands[] = 'rm "' . $user_stamp_base . '_mask' . $ext . '"';
						$commands[] = 'rm "' . $user_stamp_fgnd . '_mask' . $ext . '"';
						
						foreach( $commands as $command ) {
							exec( $command );
						}
					}
					//apply the watermark
					$commands = array();
					$commands[] = $im_path . 'composite -gravity south -geometry +0+10 "' . $user_stamp_base . $ext . '" "' . $thumbs["thumblarge"] . '" "' . $thumbs["thumblarge"] . '_watermarked"';
					$commands[] = "mv \"$thumbs[thumblarge]" . "_watermarked\" \"$thumbs[thumblarge]\"";
					foreach( $commands as $command ) {
						exec( $command );
					}
				}
			}
		} // end of image library selector
					
		array_push($uploaded_images, $file->guid);

		unset($file);  // may not be needed but there seems to be a memory leak
		

	} //end of for loop
	
	
	if (count($not_uploaded) > 0) {
		if (count($uploaded_images) > 0)
			$error = sprintf(elgg_echo("tidypics:partialuploadfailure"), count($not_uploaded), count($not_uploaded) + count($uploaded_images))  . '<br />';
		else
			$error = elgg_echo("tidypics:completeuploadfailure") . '<br />';

		$num_failures = count($not_uploaded);
		for ($i = 0; $i < $num_failures; $i++) {
			$error .= "{$not_uploaded[$i]}: {$error_msgs[$i]} <br />";
		}
		register_error($error);
		
		if (count($uploaded_images) == 0)
			forward(get_input('forward_url', $_SERVER['HTTP_REFERER'])); //upload failed, so forward to previous page
		else {
			// some images did upload so we fall through
		}
	} else {
			system_message(elgg_echo("images:saved"));
	}

	// successful upload so check if this is a new album and throw river event if so
	$album = get_entity($container_guid);
	if ($album->new_album == 1) {
		if (function_exists('add_to_river'))
			add_to_river('river/object/album/create', 'create', $album->owner_guid, $album->guid);
		$album->new_album = 0;
	}
	// plugins can register to be told when a Tidypics album has had images added
	trigger_elgg_event('upload', 'tp_album', $album);
	
	
	//forward to multi-image edit page
	forward($CONFIG->wwwroot . 'mod/tidypics/edit_multi.php?files=' . implode('-', $uploaded_images)); 

?>