Commit | Line | Data |
---|---|---|
b325120a | 1 | <?php |
e673ee24 | 2 | |
90a3d6d8 DY |
3 | |
4 | ob_start(); | |
5 | try { | |
e673ee24 DO |
6 | require 'inc/init.php'; |
7 | ||
37e59768 | 8 | assertStringArg ('img', __FILE__); |
d15b2330 DO |
9 | switch ($_REQUEST['img']) |
10 | { | |
da958e52 | 11 | case 'minirack': // rack security context |
37e59768 | 12 | assertUIntArg ('rack_id', __FILE__); |
da958e52 | 13 | $pageno = 'rack'; |
d15b2330 | 14 | $tabno = 'default'; |
da958e52 DO |
15 | fixContext(); |
16 | if (!permitted()) | |
17 | renderAccessDeniedImage(); | |
18 | else | |
19 | renderRackThumb ($_REQUEST['rack_id']); | |
d15b2330 | 20 | break; |
da958e52 | 21 | case 'progressbar': // no security context |
37e59768 | 22 | assertUIntArg ('done', __FILE__, TRUE); |
d15b2330 DO |
23 | renderProgressBarImage ($_REQUEST['done']); |
24 | break; | |
0df8c52b | 25 | case 'preview': // file security context |
37e59768 DO |
26 | assertUIntArg ('file_id', __FILE__); |
27 | $pageno = 'file'; | |
0df8c52b | 28 | $tabno = 'download'; |
37e59768 DO |
29 | fixContext(); |
30 | if (!permitted()) | |
31 | renderAccessDeniedImage(); | |
32 | else | |
43d0585d | 33 | renderFilePreview ($_REQUEST['file_id'], $_REQUEST['img']); |
37e59768 | 34 | break; |
d15b2330 DO |
35 | default: |
36 | renderError(); | |
37 | } | |
e673ee24 | 38 | |
90a3d6d8 DY |
39 | ob_end_flush(); |
40 | } | |
41 | catch (Exception $e) | |
42 | { | |
43 | ob_end_clean(); | |
44 | printException($e); | |
45 | } | |
46 | ||
47 | ||
48 | ||
e673ee24 DO |
49 | //------------------------------------------------------------------------ |
50 | function renderError () | |
51 | { | |
738363f6 DO |
52 | // A hardcoded value is worth of saving lots of code here. |
53 | $img = imagecreatefrompng ('pix/error.png'); | |
e673ee24 | 54 | header("Content-type: image/png"); |
da958e52 DO |
55 | imagepng ($img); |
56 | imagedestroy ($img); | |
57 | } | |
58 | ||
9c0b0016 | 59 | // Having a local caching array speeds things up. A little. |
e673ee24 DO |
60 | function colorFromHex ($image, $hex) |
61 | { | |
9c0b0016 DO |
62 | static $colorcache = array (); |
63 | if (isset ($colorcache[$hex])) | |
64 | return $colorcache[$hex]; | |
e673ee24 DO |
65 | $r = hexdec ('0x' . substr ($hex, 0, 2)); |
66 | $g = hexdec ('0x' . substr ($hex, 2, 2)); | |
67 | $b = hexdec ('0x' . substr ($hex, 4, 2)); | |
9c0b0016 DO |
68 | $c = imagecolorallocate ($image, $r, $g, $b); |
69 | $colorcache[$hex] = $c; | |
70 | return $c; | |
e673ee24 DO |
71 | } |
72 | ||
73 | function renderRackThumb ($rack_id = 0) | |
35ee7bd0 DO |
74 | { |
75 | // Don't call DB extra times, hence we are most probably not the | |
76 | // only script wishing to acces the same data now. | |
61a1d996 DO |
77 | if (NULL !== ($thumbcache = loadThumbCache ($rack_id))) |
78 | { | |
79 | header("Content-type: image/png"); | |
35ee7bd0 | 80 | echo $thumbcache; |
61a1d996 DO |
81 | return; |
82 | } | |
83 | ob_start(); | |
84 | if (FALSE !== generateMiniRack ($rack_id)) | |
35ee7bd0 | 85 | { |
61a1d996 DO |
86 | $capture = ob_get_clean(); |
87 | header("Content-type: image/png"); | |
88 | echo $capture; | |
35ee7bd0 | 89 | saveThumbCache ($rack_id, $capture); |
61a1d996 | 90 | return; |
35ee7bd0 | 91 | } |
61a1d996 DO |
92 | // error text in the buffer |
93 | ob_end_flush(); | |
35ee7bd0 DO |
94 | } |
95 | ||
61a1d996 DO |
96 | // Output a binary string containing the PNG minirack. Indicate error with return code. |
97 | function generateMiniRack ($rack_id) | |
e673ee24 | 98 | { |
61a1d996 DO |
99 | if (NULL === ($rackData = spotEntity ('rack', $rack_id))) |
100 | return FALSE; | |
101 | amplifyCell ($rackData); | |
e673ee24 | 102 | markupObjectProblems ($rackData); |
529eac25 | 103 | global $rtwidth; |
d5157018 | 104 | $rtdepth = 9; |
e673ee24 DO |
105 | $offset[0] = 3; |
106 | $offset[1] = 3 + $rtwidth[0]; | |
107 | $offset[2] = 3 + $rtwidth[0] + $rtwidth[1]; | |
108 | $totalheight = 3 + 3 + $rackData['height'] * 2; | |
109 | $totalwidth = $offset[2] + $rtwidth[2] + 3; | |
aa0e4c55 DO |
110 | $img = @imagecreatetruecolor ($totalwidth, $totalheight) |
111 | or die("Cannot Initialize new GD image stream"); | |
9c0b0016 DO |
112 | // cache our palette as well |
113 | $color = array(); | |
114 | foreach (array ('F', 'A', 'U', 'T', 'Th', 'Tw', 'Thw') as $statecode) | |
d1adb55a | 115 | $color[$statecode] = colorFromHex ($img, getConfigVar ('color_' . $statecode)); |
d5157018 DO |
116 | $color['black'] = colorFromHex ($img, '000000'); |
117 | $color['gray'] = colorFromHex ($img, 'c0c0c0'); | |
118 | imagerectangle ($img, 0, 0, $totalwidth - 1, $totalheight - 1, $color['black']); | |
119 | imagerectangle ($img, 1, 1, $totalwidth - 2, $totalheight - 2, $color['gray']); | |
120 | imagerectangle ($img, 2, 2, $totalwidth - 3, $totalheight - 3, $color['black']); | |
121 | for ($unit_no = 1; $unit_no <= $rackData['height']; $unit_no++) | |
e673ee24 DO |
122 | { |
123 | for ($locidx = 0; $locidx < 3; $locidx++) | |
124 | { | |
125 | $colorcode = $rackData[$unit_no][$locidx]['state']; | |
126 | if (isset ($rackData[$unit_no][$locidx]['hl'])) | |
127 | $colorcode = $colorcode . $rackData[$unit_no][$locidx]['hl']; | |
128 | imagerectangle | |
129 | ( | |
130 | $img, | |
131 | $offset[$locidx], | |
132 | 3 + ($rackData['height'] - $unit_no) * 2, | |
133 | $offset[$locidx] + $rtwidth[$locidx] - 1, | |
134 | 3 + ($rackData['height'] - $unit_no) * 2 + 1, | |
d1adb55a | 135 | $color[$colorcode] |
e673ee24 DO |
136 | ); |
137 | } | |
138 | } | |
e673ee24 DO |
139 | imagepng ($img); |
140 | imagedestroy ($img); | |
61a1d996 | 141 | return TRUE; |
e673ee24 DO |
142 | } |
143 | ||
d15b2330 DO |
144 | function renderProgressBarImage ($done) |
145 | { | |
d1adb55a | 146 | $img = @imagecreatetruecolor (100, 10); |
fec0c8da DO |
147 | switch (isset ($_REQUEST['theme']) ? $_REQUEST['theme'] : 'rackspace') |
148 | { | |
149 | case 'sparenetwork': | |
150 | $color['T'] = colorFromHex ($img, '808080'); | |
151 | $color['F'] = colorFromHex ($img, 'c0c0c0'); | |
152 | break; | |
153 | case 'rackspace': // teal | |
154 | default: | |
155 | $color['T'] = colorFromHex ($img, getConfigVar ('color_T')); | |
156 | $color['F'] = colorFromHex ($img, getConfigVar ('color_F')); | |
157 | } | |
d1adb55a DO |
158 | imagefilledrectangle ($img, 0, 0, $done, 10, $color['T']); |
159 | imagefilledrectangle ($img, $done, 0, 100, 10, $color['F']); | |
d15b2330 DO |
160 | header("Content-type: image/png"); |
161 | imagepng ($img); | |
162 | imagedestroy ($img); | |
d15b2330 DO |
163 | } |
164 | ||
2d75c30b DO |
165 | function renderAccessDeniedImage () |
166 | { | |
167 | $img = @imagecreatetruecolor (1, 1); | |
168 | imagefilledrectangle ($img, 0, 0, 1, 1, colorFromHex ($img, '000000')); | |
169 | header("Content-type: image/png"); | |
170 | imagepng ($img); | |
171 | imagedestroy ($img); | |
0df8c52b | 172 | die; |
2d75c30b DO |
173 | } |
174 | ||
43d0585d | 175 | function renderFilePreview ($file_id = 0, $mode = 'view') |
37e59768 | 176 | { |
43d0585d | 177 | switch ($mode) |
37e59768 | 178 | { |
43d0585d DO |
179 | case 'view': |
180 | // GFX files can become really big, if we uncompress them in memory just to | |
181 | // provide a PNG version of a file. To keep things working, just send the | |
182 | // contents as is for known MIME types. | |
183 | $file = getFile ($file_id); | |
184 | if (!in_array ($file['type'], array ('image/jpeg', 'image/png', 'image/gif'))) | |
185 | { | |
186 | showError ('Invalid MIME type on file', __FUNCTION__); | |
187 | break; | |
188 | } | |
189 | header("Content-type: ${file['type']}"); | |
190 | echo $file['contents']; | |
191 | break; | |
192 | case 'preview': | |
193 | $file = getFile ($file_id); | |
194 | $image = imagecreatefromstring ($file['contents']); | |
195 | unset ($file); | |
196 | $width = imagesx ($image); | |
197 | $height = imagesy ($image); | |
198 | if ($width > getConfigVar ('PREVIEW_IMAGE_MAXPXS') or $height > getConfigVar ('PREVIEW_IMAGE_MAXPXS')) | |
199 | { | |
200 | // TODO: cache thumbs for faster page generation | |
201 | $ratio = getConfigVar ('PREVIEW_IMAGE_MAXPXS') / max ($width, $height); | |
202 | $newwidth = $width * $ratio; | |
203 | $newheight = $height * $ratio; | |
204 | $resampled = imagecreatetruecolor ($newwidth, $newheight); | |
205 | imagecopyresampled ($resampled, $image, 0, 0, 0, 0, $newwidth, $newheight, $width, $height); | |
206 | imagedestroy ($image); | |
207 | $image = $resampled; | |
208 | unset ($resampled); | |
209 | } | |
210 | header("Content-type: image/png"); // don't announce content-length, it may have changed after resampling | |
211 | imagepng ($image); | |
37e59768 | 212 | imagedestroy ($image); |
43d0585d DO |
213 | break; |
214 | default: | |
215 | showError ('Invalid argument', __FUNCTION__); | |
216 | break; | |
37e59768 | 217 | } |
37e59768 | 218 | } |
f537da2f | 219 | |
e673ee24 | 220 | ?> |