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Begin work on preview generator
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parent
19c4e36754
commit
612bf0ce74
4 changed files with 127 additions and 3 deletions
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@ -193,6 +193,10 @@ $settings->upload_allowed_file_types = [
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// http://pastebin.com/mjM3zKjz
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// http://pastebin.com/mjM3zKjz
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$settings->mime_extension_mappings_location = "/etc/mime.types";
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$settings->mime_extension_mappings_location = "/etc/mime.types";
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// The minimum and maximum sizes of generated preview images in pixels.
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$settings->min_preview_size = 1;
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$settings->max_preview_size = 2048;
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// A string of css to include. Will be included in the <head> of every page
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// A string of css to include. Will be included in the <head> of every page
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// inside a <style> tag. This may also be a url - urls will be referenced via a
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// inside a <style> tag. This may also be a url - urls will be referenced via a
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// <link rel='stylesheet' /> tag.
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// <link rel='stylesheet' /> tag.
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@ -1339,6 +1343,7 @@ register_module([
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$entry->lasteditor = $env->user;
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$entry->lasteditor = $env->user;
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$entry->uploadedfile = true;
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$entry->uploadedfile = true;
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$entry->uploadedfilepath = $new_filename;
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$entry->uploadedfilepath = $new_filename;
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$entry->uploadedfilemime = $mime_type;
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// Add the new entry to the pageindex
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// Add the new entry to the pageindex
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// Assign the new entry to the image's filepath as that
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// Assign the new entry to the image's filepath as that
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// should be the page name.
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// should be the page name.
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@ -1353,7 +1358,47 @@ register_module([
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}
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}
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});
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});
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add_action("preview", function() {
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add_action("preview", function() {
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global $settings;
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global $settings, $env, $pageindex;
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$filepath = $pageindex->{$env->page}->uploadedfilepath;
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$mime_type = $pageindex->{$env->page}->uploadedfilemime;
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switch(substr($mime_type, 0, strpos($mime_type, "/")))
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{
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case "image":
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$preview = false;
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switch($mime_type)
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{
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case "image/jpeg":
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$preview = imagecreatefromjpeg($filepath);
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break;
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case "image/gif":
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$preview = imagecreatefromgif($filepath);
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break;
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case "image/png":
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$preview = imagecreatefrompng($filepath);
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break;
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case "image/webp":
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$preview = imagecreatefromwebp($filepath);
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break;
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default:
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$preview = errorimage("Unsupported image type.");
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break;
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}
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$aspect_ratio = imagesx($preview) / imagesy($preview);
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$target_width = intval($_GET["size"]);
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if($target_width < $settings->min_preview_size)
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$target_width = $settings->min_preview_size;
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if($target_width > $settings->max_preview_size)
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$target_width = $settings->max_preview_size;
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$target_height = $target_width;
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// Todo Scale image to fit inside size.
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break;
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}
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// todo render a preview here
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// todo render a preview here
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@ -1403,6 +1448,23 @@ function parse_size($size) {
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}
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}
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}
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}
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function errorimage($text)
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{
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$width = 640;
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$height = 480;
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$image = imagecreatetruecolor($width, $height);
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imagefill($image, 0, 0, imagecolorallocate($image, 238, 232, 242)); // Set the background to #eee8f2
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$fontwidth = imagefontwidth(3);
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imagetext($image, 3,
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($width / 2) - (($fontwidth * strlen($text)) / 2),
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($height / 2) - (imagefontheight(3) / 2),
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$text,
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imagecolorallocate($image, 17, 17, 17) // #111111
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);
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return $image;
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}
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@ -50,7 +50,7 @@
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"author": "Starbeamrainbowlabs",
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"author": "Starbeamrainbowlabs",
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"description": "Adds the ability to upload files to Pepperminty Wiki. Uploaded files act as pages and have the special 'File:' prefix.",
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"description": "Adds the ability to upload files to Pepperminty Wiki. Uploaded files act as pages and have the special 'File:' prefix.",
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"id": "feature-upload",
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"id": "feature-upload",
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"lastupdate": 1445500988,
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"lastupdate": 1445504176,
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"optional": false
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"optional": false
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},
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},
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{
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{
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@ -118,6 +118,7 @@ register_module([
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$entry->lasteditor = $env->user;
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$entry->lasteditor = $env->user;
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$entry->uploadedfile = true;
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$entry->uploadedfile = true;
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$entry->uploadedfilepath = $new_filename;
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$entry->uploadedfilepath = $new_filename;
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$entry->uploadedfilemime = $mime_type;
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// Add the new entry to the pageindex
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// Add the new entry to the pageindex
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// Assign the new entry to the image's filepath as that
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// Assign the new entry to the image's filepath as that
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// should be the page name.
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// should be the page name.
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@ -132,7 +133,47 @@ register_module([
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}
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}
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});
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});
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add_action("preview", function() {
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add_action("preview", function() {
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global $settings;
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global $settings, $env, $pageindex;
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$filepath = $pageindex->{$env->page}->uploadedfilepath;
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$mime_type = $pageindex->{$env->page}->uploadedfilemime;
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switch(substr($mime_type, 0, strpos($mime_type, "/")))
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{
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case "image":
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$preview = false;
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switch($mime_type)
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{
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case "image/jpeg":
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$preview = imagecreatefromjpeg($filepath);
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break;
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case "image/gif":
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$preview = imagecreatefromgif($filepath);
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break;
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case "image/png":
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$preview = imagecreatefrompng($filepath);
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break;
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case "image/webp":
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$preview = imagecreatefromwebp($filepath);
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break;
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default:
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$preview = errorimage("Unsupported image type.");
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break;
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}
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$aspect_ratio = imagesx($preview) / imagesy($preview);
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$target_width = intval($_GET["size"]);
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if($target_width < $settings->min_preview_size)
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$target_width = $settings->min_preview_size;
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if($target_width > $settings->max_preview_size)
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$target_width = $settings->max_preview_size;
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$target_height = $target_width;
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// Todo Scale image to fit inside size.
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break;
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}
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// todo render a preview here
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// todo render a preview here
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@ -182,4 +223,21 @@ function parse_size($size) {
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}
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}
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}
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}
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function errorimage($text)
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{
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$width = 640;
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$height = 480;
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$image = imagecreatetruecolor($width, $height);
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imagefill($image, 0, 0, imagecolorallocate($image, 238, 232, 242)); // Set the background to #eee8f2
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$fontwidth = imagefontwidth(3);
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imagetext($image, 3,
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($width / 2) - (($fontwidth * strlen($text)) / 2),
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($height / 2) - (imagefontheight(3) / 2),
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$text,
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imagecolorallocate($image, 17, 17, 17) // #111111
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);
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return $image;
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}
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?>
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?>
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@ -190,6 +190,10 @@ $settings->upload_allowed_file_types = [
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// http://pastebin.com/mjM3zKjz
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// http://pastebin.com/mjM3zKjz
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$settings->mime_extension_mappings_location = "/etc/mime.types";
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$settings->mime_extension_mappings_location = "/etc/mime.types";
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// The minimum and maximum sizes of generated preview images in pixels.
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$settings->min_preview_size = 1;
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$settings->max_preview_size = 2048;
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// A string of css to include. Will be included in the <head> of every page
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// A string of css to include. Will be included in the <head> of every page
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// inside a <style> tag. This may also be a url - urls will be referenced via a
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// inside a <style> tag. This may also be a url - urls will be referenced via a
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// <link rel='stylesheet' /> tag.
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// <link rel='stylesheet' /> tag.
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