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from xml.dom.minidom import getDOMImplementation
import cStringIO
import os
import gtk
import logging
from sugar.datastore import datastore
import constants
from instance import Instance
import recorded
import utils
logger = logging.getLogger('serialize')
def fillMediaHash(doc, mediaHashs):
for key, value in constants.MEDIA_INFO.items():
recdElements = doc.documentElement.getElementsByTagName(value['name'])
for el in recdElements:
_loadMediaIntoHash( el, mediaHashs[key] )
def _loadMediaIntoHash(el, hash):
addToHash = True
recd = recorded.Recorded()
recd = fillRecdFromNode(recd, el)
if recd:
if recd.datastoreId:
#quickly check: if you have a datastoreId that the file hasn't been deleted,
#cause if you do, we need to flag your removal
#2904 trac
recd.datastoreOb = getMediaFromDatastore( recd )
if not recd.datastoreOb:
addToHash = False
else:
#name might have been changed in the journal, so reflect that here
if recd.title != recd.datastoreOb.metadata['title']:
recd.setTitle(recd.datastoreOb.metadata['title'])
if recd.tags != recd.datastoreOb.metadata['tags']:
recd.setTags(recd.datastoreOb.metadata['tags'])
if recd.buddy:
recd.downloadedFromBuddy = True
recd.datastoreOb == None
if addToHash:
hash.append(recd )
def getMediaFromDatastore(recd):
if not recd.datastoreId:
return None
if recd.datastoreOb:
#already have the object
return recd.datastoreOb
mediaObject = None
try:
mediaObject = datastore.get(recd.datastoreId)
finally:
return mediaObject
def removeMediaFromDatastore(recd):
#before this method is called, the media are removed from the file
if not recd.datastoreId or not recd.datastoreOb:
return
try:
recd.datastoreOb.destroy()
datastore.delete(recd.datastoreId)
recd.datastoreId = None
recd.datastoreOb = None
finally:
#todo: add error message here
pass
def fillRecdFromNode(recd, el):
if el.getAttributeNode('type'):
recd.type = int(el.getAttribute('type'))
if el.getAttributeNode('title'):
recd.title = el.getAttribute('title')
if el.getAttributeNode('time'):
recd.time = int(el.getAttribute('time'))
if el.getAttributeNode('photographer'):
recd.recorderName = el.getAttribute('photographer')
if el.getAttributeNode('tags'):
recd.tags = el.getAttribute('tags')
else:
recd.tags = ""
if el.getAttributeNode('recorderHash'):
recd.recorderHash = el.getAttribute('recorderHash')
if el.getAttributeNode('colorStroke'):
recd.colorStroke = el.getAttribute('colorStroke')
if el.getAttributeNode('colorFill'):
recd.colorFill = el.getAttribute('colorFill')
if el.getAttributeNode('buddy'):
recd.buddy = (el.getAttribute('buddy') == "True")
if el.getAttributeNode('mediaMd5'):
recd.mediaMd5 = el.getAttribute('mediaMd5')
if el.getAttributeNode('thumbMd5'):
recd.thumbMd5 = el.getAttribute('thumbMd5')
if el.getAttributeNode('mediaBytes'):
recd.mediaBytes = el.getAttribute('mediaBytes')
if el.getAttributeNode('thumbBytes'):
recd.thumbBytes = el.getAttribute('thumbBytes')
bt = el.getAttributeNode('base64Thumb')
if bt:
try:
thumbPath = os.path.join(Instance.instancePath, "datastoreThumb.jpg")
thumbPath = utils.getUniqueFilepath(thumbPath, 0)
thumbImg = utils.getPixbufFromString(bt.nodeValue)
thumbImg.save(thumbPath, "jpeg", {"quality":"85"} )
recd.thumbFilename = os.path.basename(thumbPath)
logger.debug("saved thumbFilename")
except:
logger.error("unable to getRecdBase64Thumb")
ai = el.getAttributeNode('audioImage')
if (not ai == None):
try:
audioImagePath = os.path.join(Instance.instancePath, "audioImage.png")
audioImagePath = utils.getUniqueFilepath( audioImagePath, 0 )
audioImage = utils.getPixbufFromString( ai.nodeValue )
audioImage.save(audioImagePath, "png", {} )
recd.audioImageFilename = os.path.basename(audioImagePath)
logger.debug("loaded audio image and set audioImageFilename")
except:
logger.error("unable to load audio image")
datastoreNode = el.getAttributeNode('datastoreId')
if datastoreNode:
recd.datastoreId = datastoreNode.nodeValue
return recd
def getRecdXmlMeshString(recd):
impl = getDOMImplementation()
recdXml = impl.createDocument(None, 'recd', None)
root = recdXml.documentElement
_addRecdXmlAttrs(root, recd, True)
writer = cStringIO.StringIO()
recdXml.writexml(writer)
return writer.getvalue()
def _addRecdXmlAttrs(el, recd, forMeshTransmit):
el.setAttribute('type', str(recd.type))
if (recd.type == constants.TYPE_AUDIO) and (not forMeshTransmit):
aiPixbuf = recd.getAudioImagePixbuf()
aiPixbufString = str(utils.getStringFromPixbuf(aiPixbuf))
el.setAttribute('audioImage', aiPixbufString)
if (recd.datastoreId != None) and (not forMeshTransmit):
el.setAttribute('datastoreId', str(recd.datastoreId))
el.setAttribute('title', recd.title)
el.setAttribute('time', str(recd.time))
el.setAttribute('photographer', recd.recorderName)
el.setAttribute('recorderHash', str(recd.recorderHash) )
el.setAttribute('colorStroke', str(recd.colorStroke) )
el.setAttribute('colorFill', str(recd.colorFill) )
el.setAttribute('buddy', str(recd.buddy))
el.setAttribute('mediaMd5', str(recd.mediaMd5))
el.setAttribute('thumbMd5', str(recd.thumbMd5))
el.setAttribute('mediaBytes', str(recd.mediaBytes))
el.setAttribute('thumbBytes', str(recd.thumbBytes))
# FIXME: can this be removed, or at least autodetected? has not been
# changed for ages, should not be relevant
el.setAttribute('version', '54')
pixbuf = recd.getThumbPixbuf()
thumb64 = str(utils.getStringFromPixbuf(pixbuf))
el.setAttribute('base64Thumb', thumb64)
def saveMediaHash(mediaHashs, activity):
impl = getDOMImplementation()
album = impl.createDocument(None, 'album', None)
root = album.documentElement
#flag everything for saving...
atLeastOne = False
for type, value in constants.MEDIA_INFO.items():
typeName = value['name']
for recd in mediaHashs[type]:
recd.savedXml = False
recd.savedMedia = False
atLeastOne = True
#and if there is anything to save, save it
if atLeastOne:
for type, value in constants.MEDIA_INFO.items():
typeName = value['name']
for recd in mediaHashs[type]:
mediaEl = album.createElement(typeName)
root.appendChild(mediaEl)
_saveMedia(mediaEl, recd, activity)
return album
def _saveMedia(el, recd, activity):
if recd.buddy == True and recd.datastoreId == None and not recd.downloadedFromBuddy:
recd.savedMedia = True
_saveXml(el, recd)
else:
recd.savedMedia = False
_saveMediaToDatastore(el, recd, activity)
def _saveXml(el, recd):
if recd.thumbFilename:
_addRecdXmlAttrs(el, recd, False)
else:
logger.debug("WOAH, ERROR: recd has no thumbFilename?! " + str(recd) )
recd.savedXml = True
def _saveMediaToDatastore(el, recd, activity):
#note that we update the recds that go through here to how they would
#look on a fresh load from file since this won't just happen on close()
if recd.datastoreId:
#already saved to the datastore, don't need to re-rewrite the file since the mediums are immutable
#However, they might have changed the name of the file
if recd.metaChange:
recd.datastoreOb = getMediaFromDatastore(recd)
if recd.datastoreOb.metadata['title'] != recd.title:
recd.datastoreOb.metadata['title'] = recd.title
datastore.write(recd.datastoreOb)
if recd.datastoreOb.metadata['tags'] != recd.tags:
recd.datastoreOb.metadata['tags'] = recd.tags
datastore.write(recd.datastoreOb)
#reset for the next title change if not closing...
recd.metaChange = False
#save the title to the xml
recd.savedMedia = True
_saveXml(el, recd)
else:
#this will remove the media from being accessed on the local disk since it puts it away into cold storage
#therefore this is only called when write_file is called by the activity superclass
mediaObject = datastore.create()
mediaObject.metadata['title'] = recd.title
mediaObject.metadata['tags'] = recd.tags
datastorePreviewPixbuf = recd.getThumbPixbuf()
if recd.type == constants.TYPE_AUDIO:
datastorePreviewPixbuf = recd.getAudioImagePixbuf()
elif recd.type == constants.TYPE_PHOTO:
datastorePreviewFilepath = recd.getMediaFilepath()
datastorePreviewPixbuf = gtk.gdk.pixbuf_new_from_file(datastorePreviewFilepath)
datastorePreviewWidth = 300
datastorePreviewHeight = 225
if datastorePreviewPixbuf.get_width() != datastorePreviewWidth:
datastorePreviewPixbuf = datastorePreviewPixbuf.scale_simple(datastorePreviewWidth, datastorePreviewHeight, gtk.gdk.INTERP_NEAREST)
datastorePreviewBase64 = utils.getStringFromPixbuf(datastorePreviewPixbuf)
mediaObject.metadata['preview'] = datastorePreviewBase64
colors = str(recd.colorStroke) + "," + str(recd.colorFill)
mediaObject.metadata['icon-color'] = colors
mtype = constants.MEDIA_INFO[recd.type]
mediaObject.metadata['mime_type'] = mtype['mime']
mediaObject.metadata['activity_id'] = activity._activity_id
mediaFile = recd.getMediaFilepath()
mediaObject.file_path = mediaFile
mediaObject.transfer_ownership = True
datastore.write(mediaObject)
recd.datastoreId = mediaObject.object_id
recd.savedMedia = True
_saveXml(el, recd)
recd.mediaFilename = None
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