View source for SFPG

== Olimex ==

 root@a20-OLinuXino:~# aptitude install imagemagick
 root@a20-OLinuXino:~# aptitude install python-imaging
 root@a20-OLinuXino:~# touch /var/log/preCacheSFPG.log

 root@a20-OLinuXino:~# vim /etc/crontab

* Add line
 
 0     4 * * *   root /root/scripts/preCacheSFPG.py > /var/log/preCacheSFPG.log

* Create script

 root@a20-OLinuXino:~# vim /root/scripts/preCacheSFPG.py

 #!/usr/bin/python
 
 import os
 import sys
 import Image
 import time
 import datetime 
 
 preCachSize = 40000
 albumfiles = []
 result = []
 sfpg = '/var/www/html/sfpg/'
 cache = sfpg + 'sfpg_data/'
 albums = '/home/rijk/Documents/Pictures/'
 info = cache + 'info/'
 infofile = '.sfpg'
 thumb = cache + 'thumb/'
 preview = cache + 'preview/'
 thumb_size = 120
 preview_size = 800 
 
 def preCache(original, cachedFile, newSize):
        dirname = os.path.dirname(cachedFile)
        if not os.path.exists(dirname):
                os.makedirs(dirname)
        command = 'convert -strip -auto-orient "' + original + '" -resize "%dx%d" "' + cachedFile + '"'
        command = command % (newSize, newSize)
        os.system(command)
        print 'added: ' + time.asctime() + ' ' + cachedFile
 
 def writeInfo(original, infoFile):
        dirname = os.path.dirname(infoFile)
        if not os.path.exists(dirname):
                os.makedirs(dirname)
        creationtime = getCreationTime(original)
        filesize = '%.2f'%(os.path.getsize(original)/(1024.0*1024))
        imagesize = Image.open(original).size
        file = open(infoFile, 'w')
        file.write(creationtime + '|' + filesize + ' MB|%d|%d|'%imagesize)
        file.close()
 
 def getCreationTime(imagePath):
        creationtime = time.strftime('%d-%m-%Y %H:%M:%S', time.gmtime(os.path.getmtime(imagePath)))
        imageFile = Image.open(imagePath)
        if hasattr(imageFile, '_getexif'):
                exifdata = imageFile._getexif()
                if exifdata:
                        if 0x9003 in exifdata:
                                ctime = exifdata[0x9003].replace('\x00', '')
                                if ctime == '0000:00:00 00:00:00':
                                        return creationtime
                                else:   
                                        try:
                                                ctime = datetime.datetime.strptime(ctime, '%Y:%m:%d %H:%M:%S')
                                                creationtime = time.strftime('%d-%m-%Y %H:%M:%S', ctime.timetuple())
                                        except: 
                                                ctime = datetime.datetime.strptime(ctime[0:19], '%Y-%m-%d %H:%M:%S')
                                                creationtime = time.strftime('%d-%m-%Y %H:%M:%S', ctime.timetuple())
        return creationtime
 
 # Add photo's to the list if no preview file exists
 for root, subFolders, files in os.walk(albums, followlinks=True):
    for file in files:
                albumfile = os.path.join(root, file)
                if not os.path.exists(albumfile.replace(albums, preview, 1)):
                        albumfiles.append(albumfile)
 
 # Only precache jpg
 for albumfile in albumfiles:
        if (albumfile.endswith('jpg') or albumfile.endswith('JPG')):
                result.append(albumfile)
 
 # Just a few            
 for uncachedFile in result[0:preCachSize]:
        preCache(uncachedFile, uncachedFile.replace(albums, thumb, 1), thumb_size)
        preCache(uncachedFile, uncachedFile.replace(albums, preview, 1), preview_size)
        writeInfo(uncachedFile, uncachedFile.replace(albums, info, 1) + infofile)
 
 # Set owner of precaches to wwwrun              
 os.system('chown -R www-data:www-data ' + cache)
 
 # Remove old thumbs
 for root, subFolders, files in os.walk(thumb, followlinks=False):
    for file in files:
                thumbfile = os.path.join(root, file)
                if not os.path.exists(thumbfile.replace(thumb, albums, 1)):
                        print 'remove ' + thumbfile
                        os.remove(thumbfile)
 
 # Remove old previews
 for root, subFolders, files in os.walk(preview, followlinks=False):
    for file in files:
                previewfile = os.path.join(root, file)
                if not os.path.exists(previewfile.replace(preview, albums, 1)):
                        print 'remove ' + previewfile
                        os.remove(previewfile)
 
 # Remove old info
 for root, subFolders, files in os.walk(info, followlinks=False):
    for file in files:
                infofile = os.path.join(root, file)
                if not file == '_info.sfpg' and not os.path.exists(infofile.replace(info, albums, 1).replace('.sfpg', '')):
                        print 'remove ' + infofile
                        os.remove(infofile)

 root@a20-OLinuXino:~# chmod +x /root/scripts/preCacheSFPG.py

== ProBook 6550b ==

* Exactly the same as Olimex, only /var/www/html/sfpg instead of /var/www/sfpg

 root@ppl:/var/www/html/sfpg# tree
 .
 ├── favicon.ico
 ├── index.php
 ├── index.php.beforeresizing
 ├── index.php.only.login
 ├── readme.txt
 └── sfpg_data