cablegates/pandora/archive/views.py

# -*- coding: utf-8 -*-
# vi:si:et:sw=4:sts=4:ts=4
from __future__ import division
import os.path
import re
from datetime import datetime
from urllib2 import unquote
import mimetypes

from django import forms
from django.core.paginator import Paginator
from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.db.models import Q, Avg, Count, Sum
from django.http import HttpResponse, Http404
from django.shortcuts import render_to_response, get_object_or_404, get_list_or_404
from django.template import RequestContext
from django.conf import settings

try:
    import simplejson as json
except ImportError:
    from django.utils import simplejson as json

from oxdjango.decorators import login_required_json
from oxdjango.shortcuts import render_to_json_response, get_object_or_404_json, json_response
from oxdjango.http import HttpFileResponse
import ox

import models

from backend.utils import oxid, parse_path
import backend.models

#@login_required_json
def api_update(request):
    '''
        //both are optional, idea is to have 2 requests first with files, and
          after that with info for the requested oshashes
        param data
            files: [
                {oshash:, name:, folder:, oshash:, ctime:, atime:, mtime:, }
            ]
            info: {oshash: object}

        return {'status': {'code': int, 'text': string},
                'data': {info: list, data: list, file: list}}
    '''
    data = json.loads(request.POST['data'])
    user = request.user

    response = json_response({'info': [], 'rename': [], 'file': []})
    
    if 'files' in data:
        all_files = []
        for f in data['files']:
            folder = f['folder']
            name   = f['name']
            oshash = f['oshash']
            all_files.append(oshash)

            same_folder = models.FileInstance.objects.filter(folder=folder, user=user)
            if same_folder.count() > 0:
                movie = same_folder[0].file.movie
            else:
                movie = None

	        path = os.path.join(folder, name)

            instance = models.FileInstance.objects.filter(file__oshash=oshash, user=user)
            if instance.count()>0:
                instance = instance[0]
                updated = False
                for key in ('atime', 'mtime', 'ctime', 'name', 'folder'):
                    if f[key] != getattr(instance, key):
                        setattr(instance, key, f[key])
                        updated=True
                if updated:
			        f.save()
            else:
                #look if oshash is known
                file_object = models.File.objects.filter(oshash=oshash)
                if file_object.count() > 0:
                    file_object = file_object[0]
                    instance = models.FileInstance()
                    instance.file = file_object
                    for key in ('atime', 'mtime', 'ctime', 'name', 'folder'):
                        setattr(instance, key, f[key])
                    instance.save()
                #new oshash, add to database
                else:
                    if not movie:
                        movie_info = parse_path(folder)
                        movie = backend.models.getMovie(movie_info)
                    f = models.File()
                    f.oshash = oshash
                    f.name = name
                    f.movie = movie
                    f.save()
                    response['info'].append(oshash)

                    instance = models.FileInstance()
                    instance.user = user
                    instance.file = f
                    for key in ('atime', 'mtime', 'ctime', 'name', 'folder'):
                        setattr(instance, key, f[key])
                    instance.save()

        #remove deleted files
        #FIXME: can this have any bad consequences? i.e. on the selction of used movie files.
        models.FileInstance.objects.filter(user=user).exclude(file__oshash__in=all_files).delete()

        user_profile = user.get_profile()
        user_profile.files_updated = datetime.now()
        user_profile.save()

    if 'info' in data:
        for oshash in data['info']:
            info = data['info'][oshash]
            instance = models.FileInstance.objects.filter(file__oshash=oshash, user=user)
            if instance.count()>0:
                instance = instance[0]
                if not instance.file.info:
                    instance.file.info = info
                    instance.file.save()

    files = models.FileInstance.objects.filter(user=user, file__available=False)
    response['data'] = [f.file.oshash for f in files.filter(file__is_video=True)]
    response['files'] = [f.file.oshash for f in files.filter(file__is_subtitle=True)]

    return render_to_json_response(response)


#@login_required_json
#FIXME: is this part of the api or does it have to be outside due to multipart?
def api_upload(request):
    '''
        multipart
        param data
            oshash: string
            frame: [] //multipart frames
        return {'status': {'code': int, 'text': string},
                'data': {info: object, rename: object}}
    '''
    user = request.user
    f = get_object_or_404(models.File, oshash=request.POST['oshash'])
    if f.frames.count() == 0 and 'frame' in request.FILES:
        for frame in request.FILES['frame']:
            name = frame.name
            position = float(os.path.splitext(name)[0])
            fr = models.Frame(file=f, position=position)
            fr.save()
            fr.frame.save(frame, name)
        response = json_response({})
    else:
        response = json_response(status=403, text='permissino denied')
    return render_to_json_response(response)

class VideoChunkForm(forms.Form):
    chunk = forms.FileField()
    chunkId = forms.IntegerField(required=False)
    done = forms.IntegerField(required=False)

@login_required_json
def firefogg_upload(request):
    #handle video upload
    if request.method == 'POST':
        #init upload
        profile = request.POST.get('profile', request.GET['profile'])
        #FIXME: check for valid profile
        if 'oshash' in request.POST:
            #404 if oshash is not know, files must be registered via update api first
            f = get_object_or_404(models.File, oshash=request.POST['oshash'])
            stream, created = models.Stream.objects.get_or_create(file=file, profile=profile)
            if stream.video: #FIXME: check permission here instead of just starting over
                stream.video.delete()
            stream.available = False
            stream.save()
            response = {
                #is it possible to no hardcode url here?
                'uploadUrl': request.build_absolute_uri('/api/upload/?oshash=%s&profile=%s' % (f.oshash, profile)),
                'result': 1
            }
            return render_to_json_response(response)
        #post next chunk
        if 'chunk' in request.FILES and 'oshash' in request.GET:
            print "all chunk now"
            stream = get_object_or_404(models.Stream, oshash=request.GET['oshash'], profile=profile)

            form = VideoChunkForm(request.POST, request.FILES)
            if form.is_valid() and stream.editable(request.user):
                c = form.cleaned_data['chunk']
                chunk_id = form.cleaned_data['chunkId']
                response = {
                    'result': 1,
                    'resultUrl': request.build_absolute_uri('/')
                }
                if not stream.save_chunk(c, chunk_id):
                    response['result'] = -1
                elif form.cleaned_data['done']:
                    #FIXME: send message to encode deamon to create derivates instead
                    stream.available = True
                    stream.save()
                    response['result'] = 1
                    response['done'] = 1
                return render_to_json_response(response)
    print request.GET, request.POST
    response = json_response(status=400, text='this request requires POST')
    return render_to_json_response(response)

"""
@login_required_json
def list_files(request):
    '''
    GET list
        > {
          "files": {
            "a41cde31c581e11d": {"path": "E/Example, The/An Example.avi", "size":1646274},
          }
        }
    '''
    response = {}
    response['files'] = {}
    qs = models.UserFile.filter(user=request.user)
    p = Paginator(qs, 1000)
    for i in p.page_range:
        page = p.page(i)
        for f in page.object_list:
              response['files'][f.movie_file.oshash] = {'path': f.path, 'size': f.movie_file.size}
    return render_to_json_response(response)

def find_files(request):
    response = {}
    query = _parse_query(request)
    response['files'] = {}
    qs = models.UserFile.filter(user=request.user).filter(movie_file__movie__id__in=query['q'])
    p = Paginator(qs, 1000)
    for i in p.page_range:
        page = p.page(i)
        for f in page.object_list:
              response['files'][f.movie_file.oshash] = {'path': f.path, 'size': f.movie_file.size}
    return render_to_json_response(response)

def api_fileInfo(request):
    '''
        param data
            oshash string
        return {'status': {'code': int, 'text': string},
                'data': {imdbId:string }}
    '''
    if 'data' in request.POST:
		oshash = json.loads(request.POST['data'])
	elif 'oshash' in request.GET:
		oshash = request.GET['oshash']
    f = models.MovieFile.objects.get(oshash=oshash)
    response = {'data': f.json()}
    return render_to_json_response(response)

def api_subtitles(request):
	'''
	param data
		oshash string
		language string
		subtitle string
	return
		if no language is provided:
			{data: {languages: array}}
		if language is set:
			{data: {subtitle: string}}
		if subtitle is set:
			saves subtitle for given language
	'''
    if 'data' in request.POST:
		data = json.loads(request.POST['data'])
		oshash = data['oshash']
		language = data.get('language', None)
		srt = data.get('subtitle', None)
	if srt:
        user = request.user
        sub = models.Subtitles.objects.get_or_create(user, oshash, language)
        sub.srt = srt
        sub.save()
    else:
        response = json_response({})
        if language:
            q = models.Subtitles.objects.filter(movie_file__oshash=oshash, language=language)
            if q.count() > 0:
				response['data']['subtitle'] = q[0].srt
				return render_to_json_response(response)
        l = models.Subtitles.objects.filter(movie_file__oshash=oshash).values('language')
        response['data']['languages'] = [f['language'] for f in l]
        return render_to_json_response(response)
"""