278 lines
11 KiB
Python
278 lines
11 KiB
Python
from __future__ import absolute_import
|
|
|
|
from ast import literal_eval
|
|
import logging
|
|
import os
|
|
|
|
from django.contrib.contenttypes import generic
|
|
from django.contrib.contenttypes.models import ContentType
|
|
from django.core.exceptions import ValidationError
|
|
from django.db import models, transaction
|
|
from django.utils.translation import ugettext_lazy as _
|
|
|
|
from acls.utils import apply_default_acls
|
|
from common.compressed_files import CompressedFile, NotACompressedFile
|
|
from converter.api import get_available_transformations_choices
|
|
from converter.literals import DIMENSION_SEPARATOR
|
|
from document_indexing.api import update_indexes
|
|
from documents.events import HISTORY_DOCUMENT_CREATED
|
|
from documents.models import Document
|
|
from history.api import create_history
|
|
from metadata.api import save_metadata_list
|
|
|
|
from .classes import StagingFile
|
|
from .literals import (SOURCE_CHOICES, SOURCE_CHOICES_PLURAL,
|
|
SOURCE_CHOICE_STAGING, SOURCE_CHOICE_WATCH,
|
|
SOURCE_CHOICE_WEB_FORM,
|
|
SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES,
|
|
SOURCE_UNCOMPRESS_CHOICES, SOURCE_UNCOMPRESS_CHOICE_Y)
|
|
from .managers import SourceTransformationManager
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
|
|
class BaseModel(models.Model):
|
|
title = models.CharField(max_length=64, verbose_name=_(u'Title'))
|
|
enabled = models.BooleanField(default=True, verbose_name=_(u'Enabled'))
|
|
whitelist = models.TextField(blank=True, verbose_name=_(u'Whitelist'), editable=False)
|
|
blacklist = models.TextField(blank=True, verbose_name=_(u'Blacklist'), editable=False)
|
|
|
|
@classmethod
|
|
def class_fullname(cls):
|
|
return unicode(dict(SOURCE_CHOICES).get(cls.source_type))
|
|
|
|
@classmethod
|
|
def class_fullname_plural(cls):
|
|
return unicode(dict(SOURCE_CHOICES_PLURAL).get(cls.source_type))
|
|
|
|
def __unicode__(self):
|
|
return u'%s' % self.title
|
|
|
|
def fullname(self):
|
|
return u' '.join([self.class_fullname(), '"%s"' % self.title])
|
|
|
|
def internal_name(self):
|
|
return u'%s_%d' % (self.source_type, self.pk)
|
|
|
|
def get_transformation_list(self):
|
|
return SourceTransformation.transformations.get_for_object_as_list(self)
|
|
|
|
def upload_file(self, file_object, filename=None, use_file_name=False, document_type=None, expand=False, metadata_dict_list=None, user=None, document=None, new_version_data=None, command_line=False, description=None):
|
|
is_compressed = None
|
|
|
|
if expand:
|
|
try:
|
|
cf = CompressedFile(file_object)
|
|
count = 1
|
|
for fp in cf.children():
|
|
if command_line:
|
|
print 'Uploading file #%d: %s' % (count, fp)
|
|
self.upload_single_file(file_object=fp, filename=None, document_type=document_type, metadata_dict_list=metadata_dict_list, user=user, description=description)
|
|
fp.close()
|
|
count += 1
|
|
|
|
except NotACompressedFile:
|
|
is_compressed = False
|
|
logging.debug('Exception: NotACompressedFile')
|
|
if command_line:
|
|
raise
|
|
self.upload_single_file(file_object=file_object, filename=filename, document_type=document_type, metadata_dict_list=metadata_dict_list, user=user, description=description)
|
|
else:
|
|
is_compressed = True
|
|
else:
|
|
self.upload_single_file(file_object, filename, use_file_name, document_type, metadata_dict_list, user, document, new_version_data, description=description)
|
|
|
|
file_object.close()
|
|
return {'is_compressed': is_compressed}
|
|
|
|
@transaction.atomic
|
|
def upload_single_file(self, file_object, filename=None, use_file_name=False, document_type=None, metadata_dict_list=None, user=None, document=None, new_version_data=None, description=None):
|
|
new_document = not document
|
|
|
|
if not document:
|
|
document = Document()
|
|
if document_type:
|
|
document.document_type = document_type
|
|
|
|
if description:
|
|
document.description = description
|
|
|
|
document.save()
|
|
|
|
apply_default_acls(document, user)
|
|
|
|
if user:
|
|
document.add_as_recent_document_for_user(user)
|
|
create_history(HISTORY_DOCUMENT_CREATED, document, {'user': user})
|
|
else:
|
|
create_history(HISTORY_DOCUMENT_CREATED, document)
|
|
else:
|
|
if use_file_name:
|
|
filename = None
|
|
else:
|
|
filename = filename if filename else document.latest_version.filename
|
|
|
|
if description:
|
|
document.description = description
|
|
document.save()
|
|
|
|
if not new_version_data:
|
|
new_version_data = {}
|
|
|
|
new_version = document.new_version(file=file_object, user=user, **new_version_data)
|
|
|
|
if filename:
|
|
document.rename(filename)
|
|
|
|
transformations, errors = self.get_transformation_list()
|
|
|
|
new_version.apply_default_transformations(transformations)
|
|
# TODO: new HISTORY for version updates
|
|
|
|
if metadata_dict_list and new_document:
|
|
# Only do for new documents
|
|
save_metadata_list(metadata_dict_list, document, create=True)
|
|
warnings = update_indexes(document)
|
|
|
|
class Meta:
|
|
ordering = ('title',)
|
|
abstract = True
|
|
|
|
|
|
class InteractiveBaseModel(BaseModel):
|
|
class Meta(BaseModel.Meta):
|
|
abstract = True
|
|
|
|
|
|
class StagingFolder(InteractiveBaseModel):
|
|
is_interactive = True
|
|
source_type = SOURCE_CHOICE_STAGING
|
|
|
|
folder_path = models.CharField(max_length=255, verbose_name=_(u'Folder path'), help_text=_(u'Server side filesystem path.'))
|
|
preview_width = models.IntegerField(verbose_name=_(u'Preview width'), help_text=_(u'Width value to be passed to the converter backend.'))
|
|
preview_height = models.IntegerField(blank=True, null=True, verbose_name=_(u'Preview height'), help_text=_(u'Height value to be passed to the converter backend.'))
|
|
uncompress = models.CharField(max_length=1, choices=SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES, verbose_name=_(u'Uncompress'), help_text=_(u'Whether to expand or not compressed archives.'))
|
|
delete_after_upload = models.BooleanField(default=True, verbose_name=_(u'Delete after upload'), help_text=_(u'Delete the file after is has been successfully uploaded.'))
|
|
|
|
def get_preview_size(self):
|
|
dimensions = []
|
|
dimensions.append(unicode(self.preview_width))
|
|
if self.preview_height:
|
|
dimensions.append(unicode(self.preview_height))
|
|
|
|
return DIMENSION_SEPARATOR.join(dimensions)
|
|
|
|
def get_file(self, *args, **kwargs):
|
|
return StagingFile(staging_folder=self, *args, **kwargs)
|
|
|
|
def get_files(self):
|
|
try:
|
|
for entry in sorted([os.path.normcase(f) for f in os.listdir(self.folder_path) if os.path.isfile(os.path.join(self.folder_path, f))]):
|
|
yield self.get_file(filename=entry)
|
|
except OSError as exception:
|
|
raise Exception(_(u'Unable get list of staging files: %s') % exception)
|
|
|
|
class Meta(InteractiveBaseModel.Meta):
|
|
verbose_name = _(u'Staging folder')
|
|
verbose_name_plural = _(u'Staging folders')
|
|
|
|
|
|
class WebForm(InteractiveBaseModel):
|
|
is_interactive = True
|
|
source_type = SOURCE_CHOICE_WEB_FORM
|
|
|
|
uncompress = models.CharField(max_length=1, choices=SOURCE_INTERACTIVE_UNCOMPRESS_CHOICES, verbose_name=_(u'Uncompress'), help_text=_(u'Whether to expand or not compressed archives.'))
|
|
# Default path
|
|
|
|
class Meta(InteractiveBaseModel.Meta):
|
|
verbose_name = _(u'Web form')
|
|
verbose_name_plural = _(u'Web forms')
|
|
|
|
|
|
class WatchFolder(BaseModel):
|
|
is_interactive = False
|
|
source_type = SOURCE_CHOICE_WATCH
|
|
|
|
folder_path = models.CharField(max_length=255, verbose_name=_(u'Folder path'), help_text=_(u'Server side filesystem path.'))
|
|
uncompress = models.CharField(max_length=1, choices=SOURCE_UNCOMPRESS_CHOICES, verbose_name=_(u'Uncompress'), help_text=_(u'Whether to expand or not compressed archives.'))
|
|
delete_after_upload = models.BooleanField(default=True, verbose_name=_(u'Delete after upload'), help_text=_(u'Delete the file after is has been successfully uploaded.'))
|
|
interval = models.PositiveIntegerField(verbose_name=_(u'Interval'), help_text=_(u'Inverval in seconds where the watch folder path is checked for new documents.'))
|
|
|
|
def save(self, *args, **kwargs):
|
|
if self.pk:
|
|
remove_job(self.internal_name())
|
|
super(WatchFolder, self).save(*args, **kwargs)
|
|
self.schedule()
|
|
|
|
def schedule(self):
|
|
if self.enabled:
|
|
register_interval_job(self.internal_name(),
|
|
title=self.fullname(), func=self.execute,
|
|
kwargs={'source_id': self.pk}, seconds=self.interval
|
|
)
|
|
|
|
def execute(self, source_id):
|
|
source = WatchFolder.objects.get(pk=source_id)
|
|
if source.uncompress == SOURCE_UNCOMPRESS_CHOICE_Y:
|
|
expand = True
|
|
else:
|
|
expand = False
|
|
print 'execute: %s' % self.internal_name()
|
|
|
|
class Meta(BaseModel.Meta):
|
|
verbose_name = _(u'Watch folder')
|
|
verbose_name_plural = _(u'Watch folders')
|
|
|
|
|
|
class ArgumentsValidator(object):
|
|
message = _(u'Enter a valid value.')
|
|
code = 'invalid'
|
|
|
|
def __init__(self, message=None, code=None):
|
|
if message is not None:
|
|
self.message = message
|
|
if code is not None:
|
|
self.code = code
|
|
|
|
def __call__(self, value):
|
|
"""
|
|
Validates that the input evaluates correctly.
|
|
"""
|
|
value = value.strip()
|
|
try:
|
|
literal_eval(value)
|
|
except (ValueError, SyntaxError):
|
|
raise ValidationError(self.message, code=self.code)
|
|
|
|
|
|
class SourceTransformation(models.Model):
|
|
"""
|
|
Model that stores the transformation and transformation arguments
|
|
for a given document source
|
|
"""
|
|
content_type = models.ForeignKey(ContentType)
|
|
object_id = models.PositiveIntegerField()
|
|
content_object = generic.GenericForeignKey('content_type', 'object_id')
|
|
order = models.PositiveIntegerField(default=0, blank=True, null=True, verbose_name=_(u'Order'), db_index=True)
|
|
transformation = models.CharField(choices=get_available_transformations_choices(), max_length=128, verbose_name=_(u'Transformation'))
|
|
arguments = models.TextField(blank=True, null=True, verbose_name=_(u'Arguments'), help_text=_(u'Use dictionaries to indentify arguments, example: %s') % u'{\'degrees\':90}', validators=[ArgumentsValidator()])
|
|
|
|
objects = models.Manager()
|
|
transformations = SourceTransformationManager()
|
|
|
|
def __unicode__(self):
|
|
return self.get_transformation_display()
|
|
|
|
class Meta:
|
|
ordering = ('order',)
|
|
verbose_name = _(u'Document source transformation')
|
|
verbose_name_plural = _(u'Document source transformations')
|
|
|
|
|
|
class OutOfProcess(BaseModel):
|
|
is_interactive = False
|
|
|
|
class Meta(BaseModel.Meta):
|
|
verbose_name = _(u'Out of process')
|
|
verbose_name_plural = _(u'Out of process')
|