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text thumbnails in cloud tile mode

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This commit is contained in:
zotlabs 2017-11-19 16:56:59 -08:00
parent 60fcb5f4f2
commit 16f584608f
7 changed files with 159 additions and 59 deletions
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62
Zotlabs/Daemon/Thumbnail.php Normal file
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@ -0,0 +1,62 @@
<?php /** @file */
namespace Zotlabs\Daemon;
class Thumbnail {
static public function run($argc,$argv) {
if(! $argc == 2)
return;
$c = q("select * from attach where hash = '%s' ",
dbesc($argv[1])
);
if(! $c)
return;
$preview_style = intval(get_config('system','thumbnail_security',0));
$attach = $c[0];
$isize = 300;
if(strpos($attach['filetype'],'text/') !== false) {
$stream = @fopen($attach['content'],'rb');
if($stream) {
$content = trim(stream_get_contents($stream,4096));
$content = str_replace("\r",'',$content);
$content_a = explode("\n",$content);
}
if($content_a) {
$fsize = 4;
$lsize = 8;
$image = imagecreate($isize,$isize);
imagecolorallocate($image,255,255,255);
$colour = imagecolorallocate($image,0,0,0);
$border = imagecolorallocate($image,64,64,64);
$x1 = 0;
$y1 = 0;
$x2 = ImageSX($image) - 1;
$y2 = ImageSY($image) - 1;
for($i = 0; $i < 2; $i++) {
ImageRectangle($image, $x1++, $y1++, $x2--, $y2--, $border);
}
foreach($content_a as $l => $t) {
$l = $l + 1;
$x = 3;
$y = ($l * $lsize) + 3 - $fsize;
imagestring($image,1,$x,$y,$t,$colour);
if(($l * $lsize) >= $isize) {
break;
}
}
imagejpeg($image,$attach['content'] . '.thumb');
}
}
}
}

13
Zotlabs/Storage/Browser.php
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@ -208,6 +208,16 @@ class Browser extends DAV\Browser\Plugin {
$photo_icon = '';
$preview_style = intval(get_config('system','thumbnail_security',0));
$r = q("select content from attach where hash = '%s' and uid = %d limit 1",
dbesc($attachHash),
intval($owner)
);
if($r && file_exists(dbunescbin($r[0]['content']) . '.thumb')) {
$photo_icon = 'data:image/jpeg;base64,' . base64_encode(file_get_contents(dbunescbin($r[0]['content']) . '.thumb'));
// logger('found thumb: ' . $photo_icon);
}
if(strpos($type,'image/') === 0 && $attachHash) {
$r = q("select resource_id, imgscale from photo where resource_id = '%s' and imgscale in ( %d, %d ) order by imgscale asc limit 1",
dbesc($attachHash),
@ -220,12 +230,11 @@ class Browser extends DAV\Browser\Plugin {
if($type === 'image/svg+xml' && $preview_style > 0) {
$photo_icon = $fullPath;
}
}
$g = [ 'resource_id' => $attachHash, 'thumbnail' => $photo_icon, 'security' => $preview_style ];
call_hooks('file_thumbnail', $g);
$photo_icon = $g['photo_icon'];
$photo_icon = $g['thumbnail'];
$attachIcon = ""; // "<a href=\"attach/".$attachHash."\" title=\"".$displayName."\"><i class=\"fa fa-arrow-circle-o-down\"></i></a>";

2
Zotlabs/Storage/Directory.php
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@ -362,6 +362,8 @@ class Directory extends DAV\Node implements DAV\ICollection, DAV\IQuota {
$args = array( 'resource_id' => $hash, 'album' => $album, 'os_syspath' => $f, 'os_path' => $xpath['os_path'], 'display_path' => $xpath['path'], 'filename' => $name, 'getimagesize' => $gis, 'directory' => $direct);
$p = photo_upload($c[0], \App::get_observer(), $args);
}
\Zotlabs\Daemon\Master::Summon([ 'Thumbnail' , $this->folder_hash ]);
$sync = attach_export_data($c[0], $hash);

3
Zotlabs/Storage/File.php
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@ -244,6 +244,9 @@ class File extends DAV\Node implements DAV\IFile {
}
}
\Zotlabs\Daemon\Master::Summon([ 'Thumbnail' , $this->data['hash'] ]);
$sync = attach_export_data($c[0],$this->data['hash']);
if($sync)

3
include/attach.php
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@ -951,6 +951,9 @@ function attach_store($channel, $observer_hash, $options = '', $arr = null) {
call_hooks('photo_upload_end', $ret);
}
\Zotlabs\Daemon\Master::Summon([ 'Thumbnail' , $hash ]);
if($dosync) {
$sync = attach_export_data($channel,$hash);

127
include/photo/photo_driver.php
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@ -241,69 +241,84 @@ abstract class photo_driver {
}
/**
* @brief reads exif data from filename
*/
public function exif($filename) {
public function orient($filename) {
if((! function_exists('exif_read_data'))
|| (! in_array($this->getType(), [ 'image/jpeg' , 'image/tiff'] ))) {
return false;
}
/**
* This function is a bit unusual, because it is operating on a file, but you must
* first create an image from that file to initialise the type and check validity
* of the image.
/*
* PHP 7.2 allows you to use a stream resource, which should reduce/avoid
* memory exhaustion on large images.
*/
if(! $this->is_valid())
return false;
if((! function_exists('exif_read_data')) || ($this->getType() !== 'image/jpeg'))
return false;
$exif = @exif_read_data($filename,null,true);
if($exif) {
$ort = $exif['IFD0']['Orientation'];
switch($ort)
{
case 1: // nothing
break;
case 2: // horizontal flip
$this->flip();
break;
case 3: // 180 rotate left
$this->rotate(180);
break;
case 4: // vertical flip
$this->flip(false, true);
break;
case 5: // vertical flip + 90 rotate right
$this->flip(false, true);
$this->rotate(-90);
break;
case 6: // 90 rotate right
$this->rotate(-90);
break;
case 7: // horizontal flip + 90 rotate right
$this->flip();
$this->rotate(-90);
break;
case 8: // 90 rotate left
$this->rotate(90);
break;
}
return $exif;
if(version_compare(PHP_VERSION,'7.2.0') >= 0) {
$f = @fopen($filename,'rb');
}
else {
$f = $filename;
}
return false;
if($f) {
return @exif_read_data($f);
}
return false;
}
/**
* @brief orients current image based on exif orientation information
*/
public function orient($exif) {
if(! ($this->is_valid() && $exif)) {
return false;
}
$ort = $exif['IFD0']['Orientation'];
if(! $ort) {
return false;
}
switch($ort) {
case 1: // nothing
break;
case 2: // horizontal flip
$this->flip();
break;
case 3: // 180 rotate left
$this->rotate(180);
break;
case 4: // vertical flip
$this->flip(false, true);
break;
case 5: // vertical flip + 90 rotate right
$this->flip(false, true);
$this->rotate(-90);
break;
case 6: // 90 rotate right
$this->rotate(-90);
break;
case 7: // horizontal flip + 90 rotate right
$this->flip();
$this->rotate(-90);
break;
case 8: // 90 rotate left
$this->rotate(90);
break;
default:
break;
}
return true;
}

8
include/photos.php
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@ -203,7 +203,13 @@ function photo_upload($channel, $observer, $args) {
return $ret;
}
$exif = $ph->orient(($args['os_syspath']) ? $args['os_syspath'] : $src);
// obtain exif data from the source file if present
$exif = $ph->exif(($args['os_syspath']) ? $args['os_syspath'] : $src);
if($exif) {
$ph->orient($exif);
}
@unlink($src);