Commit | Line | Data |
---|---|---|
b325120a | 1 | <?php |
e673ee24 | 2 | |
e673ee24 DO |
3 | require 'inc/init.php'; |
4 | ||
37e59768 | 5 | assertStringArg ('img', __FILE__); |
d15b2330 DO |
6 | switch ($_REQUEST['img']) |
7 | { | |
da958e52 | 8 | case 'minirack': // rack security context |
37e59768 | 9 | assertUIntArg ('rack_id', __FILE__); |
da958e52 | 10 | $pageno = 'rack'; |
d15b2330 | 11 | $tabno = 'default'; |
da958e52 DO |
12 | fixContext(); |
13 | if (!permitted()) | |
14 | renderAccessDeniedImage(); | |
15 | else | |
16 | renderRackThumb ($_REQUEST['rack_id']); | |
d15b2330 | 17 | break; |
da958e52 | 18 | case 'progressbar': // no security context |
37e59768 | 19 | assertUIntArg ('done', __FILE__, TRUE); |
d15b2330 DO |
20 | renderProgressBarImage ($_REQUEST['done']); |
21 | break; | |
37e59768 DO |
22 | case 'view': // file security context |
23 | case 'preview': | |
24 | assertUIntArg ('file_id', __FILE__); | |
25 | $pageno = 'file'; | |
26 | $tabno = 'default'; | |
27 | fixContext(); | |
28 | if (!permitted()) | |
29 | renderAccessDeniedImage(); | |
30 | else | |
31 | renderFilePreview ($_REQUEST['file_id']); | |
32 | break; | |
d15b2330 DO |
33 | default: |
34 | renderError(); | |
35 | } | |
e673ee24 DO |
36 | |
37 | //------------------------------------------------------------------------ | |
38 | function renderError () | |
39 | { | |
738363f6 DO |
40 | // A hardcoded value is worth of saving lots of code here. |
41 | $img = imagecreatefrompng ('pix/error.png'); | |
e673ee24 | 42 | header("Content-type: image/png"); |
da958e52 DO |
43 | imagepng ($img); |
44 | imagedestroy ($img); | |
45 | } | |
46 | ||
9c0b0016 | 47 | // Having a local caching array speeds things up. A little. |
e673ee24 DO |
48 | function colorFromHex ($image, $hex) |
49 | { | |
9c0b0016 DO |
50 | static $colorcache = array (); |
51 | if (isset ($colorcache[$hex])) | |
52 | return $colorcache[$hex]; | |
e673ee24 DO |
53 | $r = hexdec ('0x' . substr ($hex, 0, 2)); |
54 | $g = hexdec ('0x' . substr ($hex, 2, 2)); | |
55 | $b = hexdec ('0x' . substr ($hex, 4, 2)); | |
9c0b0016 DO |
56 | $c = imagecolorallocate ($image, $r, $g, $b); |
57 | $colorcache[$hex] = $c; | |
58 | return $c; | |
e673ee24 DO |
59 | } |
60 | ||
61 | function renderRackThumb ($rack_id = 0) | |
35ee7bd0 DO |
62 | { |
63 | // Don't call DB extra times, hence we are most probably not the | |
64 | // only script wishing to acces the same data now. | |
65 | header("Content-type: image/png"); | |
66 | $thumbcache = loadThumbCache ($rack_id); | |
67 | if ($thumbcache !== NULL) | |
68 | echo $thumbcache; | |
69 | else | |
70 | { | |
71 | ob_start(); | |
72 | generateMiniRack ($rack_id); | |
73 | $capture = ob_get_contents(); | |
74 | ob_end_flush(); | |
75 | saveThumbCache ($rack_id, $capture); | |
76 | } | |
77 | } | |
78 | ||
6874300e | 79 | // Output a binary string containing the PNG minirack. |
d5157018 | 80 | function generateMiniRack ($rack_id = 0) |
e673ee24 DO |
81 | { |
82 | if (($rackData = getRackData ($rack_id, TRUE)) == NULL) | |
83 | { | |
84 | renderError(); | |
85 | return; | |
86 | } | |
87 | markupObjectProblems ($rackData); | |
529eac25 | 88 | global $rtwidth; |
d5157018 | 89 | $rtdepth = 9; |
e673ee24 DO |
90 | $offset[0] = 3; |
91 | $offset[1] = 3 + $rtwidth[0]; | |
92 | $offset[2] = 3 + $rtwidth[0] + $rtwidth[1]; | |
93 | $totalheight = 3 + 3 + $rackData['height'] * 2; | |
94 | $totalwidth = $offset[2] + $rtwidth[2] + 3; | |
aa0e4c55 DO |
95 | $img = @imagecreatetruecolor ($totalwidth, $totalheight) |
96 | or die("Cannot Initialize new GD image stream"); | |
9c0b0016 DO |
97 | // cache our palette as well |
98 | $color = array(); | |
99 | foreach (array ('F', 'A', 'U', 'T', 'Th', 'Tw', 'Thw') as $statecode) | |
d1adb55a | 100 | $color[$statecode] = colorFromHex ($img, getConfigVar ('color_' . $statecode)); |
d5157018 DO |
101 | $color['black'] = colorFromHex ($img, '000000'); |
102 | $color['gray'] = colorFromHex ($img, 'c0c0c0'); | |
103 | imagerectangle ($img, 0, 0, $totalwidth - 1, $totalheight - 1, $color['black']); | |
104 | imagerectangle ($img, 1, 1, $totalwidth - 2, $totalheight - 2, $color['gray']); | |
105 | imagerectangle ($img, 2, 2, $totalwidth - 3, $totalheight - 3, $color['black']); | |
106 | for ($unit_no = 1; $unit_no <= $rackData['height']; $unit_no++) | |
e673ee24 DO |
107 | { |
108 | for ($locidx = 0; $locidx < 3; $locidx++) | |
109 | { | |
110 | $colorcode = $rackData[$unit_no][$locidx]['state']; | |
111 | if (isset ($rackData[$unit_no][$locidx]['hl'])) | |
112 | $colorcode = $colorcode . $rackData[$unit_no][$locidx]['hl']; | |
113 | imagerectangle | |
114 | ( | |
115 | $img, | |
116 | $offset[$locidx], | |
117 | 3 + ($rackData['height'] - $unit_no) * 2, | |
118 | $offset[$locidx] + $rtwidth[$locidx] - 1, | |
119 | 3 + ($rackData['height'] - $unit_no) * 2 + 1, | |
d1adb55a | 120 | $color[$colorcode] |
e673ee24 DO |
121 | ); |
122 | } | |
123 | } | |
e673ee24 DO |
124 | imagepng ($img); |
125 | imagedestroy ($img); | |
126 | } | |
127 | ||
d15b2330 DO |
128 | function renderProgressBarImage ($done) |
129 | { | |
d1adb55a | 130 | $img = @imagecreatetruecolor (100, 10); |
fec0c8da DO |
131 | switch (isset ($_REQUEST['theme']) ? $_REQUEST['theme'] : 'rackspace') |
132 | { | |
133 | case 'sparenetwork': | |
134 | $color['T'] = colorFromHex ($img, '808080'); | |
135 | $color['F'] = colorFromHex ($img, 'c0c0c0'); | |
136 | break; | |
137 | case 'rackspace': // teal | |
138 | default: | |
139 | $color['T'] = colorFromHex ($img, getConfigVar ('color_T')); | |
140 | $color['F'] = colorFromHex ($img, getConfigVar ('color_F')); | |
141 | } | |
d1adb55a DO |
142 | imagefilledrectangle ($img, 0, 0, $done, 10, $color['T']); |
143 | imagefilledrectangle ($img, $done, 0, 100, 10, $color['F']); | |
d15b2330 DO |
144 | header("Content-type: image/png"); |
145 | imagepng ($img); | |
146 | imagedestroy ($img); | |
d15b2330 DO |
147 | } |
148 | ||
2d75c30b DO |
149 | function renderAccessDeniedImage () |
150 | { | |
151 | $img = @imagecreatetruecolor (1, 1); | |
152 | imagefilledrectangle ($img, 0, 0, 1, 1, colorFromHex ($img, '000000')); | |
153 | header("Content-type: image/png"); | |
154 | imagepng ($img); | |
155 | imagedestroy ($img); | |
156 | } | |
157 | ||
37e59768 DO |
158 | function renderFilePreview ($file_id = 0) |
159 | { | |
160 | $file = getFile ($file_id); | |
161 | $image = imagecreatefromstring ($file['contents']); | |
162 | $width = imagesx ($image); | |
163 | $height = imagesy ($image); | |
164 | if ($_REQUEST['img'] == 'preview' and ($width > getConfigVar ('PREVIEW_IMAGE_MAXPXS') or $height > getConfigVar ('PREVIEW_IMAGE_MAXPXS'))) | |
165 | { | |
166 | // TODO: cache thumbs for faster page generation | |
167 | $ratio = getConfigVar ('PREVIEW_IMAGE_MAXPXS') / max ($width, $height); | |
168 | $newwidth = $width * $ratio; | |
169 | $newheight = $height * $ratio; | |
170 | $resampled = imagecreatetruecolor ($newwidth, $newheight); | |
171 | imagecopyresampled ($resampled, $image, 0, 0, 0, 0, $newwidth, $newheight, $width, $height); | |
172 | imagedestroy ($image); | |
173 | $image = $resampled; | |
174 | unset ($resampled); | |
175 | } | |
176 | header("Content-type: image/png"); // don't announce content-length, it may have changed after resampling | |
177 | imagepng ($image); | |
178 | imagedestroy ($image); | |
179 | } | |
180 | ||
e673ee24 | 181 | ?> |