pandora/pandora/text/views.py
2018-06-19 08:33:26 +02:00

451 lines
15 KiB
Python

# -*- coding: utf-8 -*-
from __future__ import division, print_function, absolute_import
import os
import re
import ox
from ox.utils import json
from oxdjango.api import actions
from oxdjango.decorators import login_required_json
from oxdjango.http import HttpFileResponse
from oxdjango.shortcuts import render_to_json_response, get_object_or_404_json, json_response
from django import forms
from django.db.models import Sum, Max
from django.conf import settings
from django.shortcuts import render
from item import utils
from archive.chunk import process_chunk
from . import models
from changelog.models import add_changelog
def get_text_or_404_json(id):
id = id.split(':')
username = id[0]
name = ":".join(id[1:])
return get_object_or_404_json(models.Text, user__username=username, name=name)
@login_required_json
def addText(request, data):
'''
Adds a new text
takes {
name: string // text name
}
returns {
id: string, // text id
name: string // text name
... more key/value pairs
}
see: editText, findTexts, getText, removeText, sortTexts
'''
data['name'] = re.sub(' \[\d+\]$', '', data.get('name', 'Untitled')).strip()
name = data['name']
if not name:
name = "Untitled"
num = 1
created = False
while not created:
text, created = models.Text.objects.get_or_create(name=name, user=request.user)
num += 1
name = data['name'] + ' [%d]' % num
del data['name']
if data:
text.edit(data, request.user)
else:
text.save()
if text.status == 'featured':
pos, created = models.Position.objects.get_or_create(text=text,
user=request.user, section='featured')
qs = models.Position.objects.filter(section='featured')
else:
pos, created = models.Position.objects.get_or_create(text=text,
user=request.user, section='personal')
qs = models.Position.objects.filter(user=request.user, section='personal')
pos.position = qs.aggregate(Max('position'))['position__max'] + 1
pos.save()
response = json_response(status=200, text='created')
response['data'] = text.json(user=request.user)
add_changelog(request, data, text.get_id())
return render_to_json_response(response)
actions.register(addText, cache=False)
def getText(request, data):
'''
Gets a text by id
takes {
id: string, // text id
keys: [string] // list of properties to return
}
returns {
id: string, // text id
key: value, // property and value
... // more key/value pairs
}
see: addText, findTexts, editText, removeText, sortTexts
'''
response = json_response()
public_id = data['id']
if public_id == '':
qs = models.Text.objects.filter(name='')
if qs.count() == 0:
text = None
response['data'] = {
'id': '',
'name': '',
'text': '',
'type': 'html',
'editable': not request.user.is_anonymous() and request.user.profile.capability('canEditFeaturedTexts')
}
else:
text = qs[0]
else:
text = get_text_or_404_json(data['id'])
if not text.accessible(request.user):
text = None
response['status']['code'] = 404
if text:
response['data'] = text.json(user=request.user, keys=data.get('keys'))
return render_to_json_response(response)
actions.register(getText)
@login_required_json
def editText(request, data):
'''
Edits a text
takes {
id: string, // text id
text: string, // text
public: boolean // if true, text is publix
}
returns {
id: string, // text id
... // more key/value pairs
}
see: addText, findTexts, getText, removeText, sortTexts
'''
response = json_response()
if data['id']:
public_id = data['id'].split(':')
username = public_id[0]
name = ":".join(public_id[1:])
text, created = models.Text.objects.get_or_create(name=name, user=models.User.objects.get(username=username))
if created:
text.user = request.user
else:
qs = models.Text.objects.filter(name='')
if qs.count() == 0:
if request.user.profile.capability('canEditFeaturedTexts'):
text = models.Text(name='', user=request.user)
text.save()
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
else:
text = qs[0]
if text.editable(request.user):
text.edit(data, request.user)
response['data'] = text.json(user=request.user)
add_changelog(request, data, text.get_id())
else:
response = json_response(status=403, text='permission denied')
return render_to_json_response(response)
actions.register(editText, cache=False)
def _order_query(qs, sort):
order_by = []
for e in sort:
operator = e['operator']
if operator != '-':
operator = ''
key = {
'subscribed': 'subscribed_users',
'items': 'numberofitems'
}.get(e['key'], e['key'])
order = '%s%s' % (operator, key)
order_by.append(order)
if key == 'subscribers':
qs = qs.annotate(subscribers=Sum('subscribed_users'))
if order_by:
qs = qs.order_by(*order_by, nulls_last=True)
qs = qs.distinct()
return qs
def parse_query(data, user):
query = {}
query['range'] = [0, 100]
query['sort'] = [{'key':'user', 'operator':'+'}, {'key':'name', 'operator':'+'}]
for key in ('keys', 'group', 'text', 'range', 'position', 'positions', 'sort'):
if key in data:
query[key] = data[key]
query['qs'] = models.Text.objects.find(data, user).exclude(name='')
return query
def findTexts(request, data):
'''
Finds texts for a given query
takes {
keys: [], // list of keys to return, see `find`
query: object, // query object, see `find`
range: [int, int], // range of items to return
sort: [object], list of sort objects, see `find`
}
returns {
items: [object] // list of text objects
}
notes: Possible query keys are 'featured', 'name', 'subscribed' and 'user',
possible keys are 'featured', 'name', 'query', 'subscribed' and 'user'.
see: addText, editText, find, getText, removeText, sortTexts
'''
query = parse_query(data, request.user)
#order
is_section_request = query['sort'] == [{u'operator': u'+', u'key': u'position'}]
def is_featured_condition(x):
return x['key'] == 'status' and \
x['value'] == 'featured' and \
x['operator'] in ('=', '==')
is_featured = any(
is_featured_condition(x)
for x in data.get('query', {}).get('conditions', [])
)
if is_section_request:
qs = query['qs']
if not is_featured and not request.user.is_anonymous():
qs = qs.filter(position__in=models.Position.objects.filter(user=request.user))
qs = qs.order_by('position__position')
else:
qs = _order_query(query['qs'], query['sort'])
response = json_response()
if 'keys' in data:
qs = qs[query['range'][0]:query['range'][1]]
response['data']['items'] = [l.json(data['keys'], request.user) for l in qs]
elif 'position' in data:
#FIXME: actually implement position requests
response['data']['position'] = 0
elif 'positions' in data:
ids = [i.get_id() for i in qs]
response['data']['positions'] = utils.get_positions(ids, query['positions'])
else:
response['data']['items'] = qs.count()
return render_to_json_response(response)
actions.register(findTexts)
@login_required_json
def removeText(request, data):
'''
Removes a text
takes {
id: string // text id
}
returns {}
see: addText, editText, findTexts, getText, sortTexts
'''
text = get_text_or_404_json(data['id'])
response = json_response()
if text.editable(request.user):
add_changelog(request, data, text.get_id())
text.delete()
else:
response = json_response(status=403, text='not allowed')
return render_to_json_response(response)
actions.register(removeText, cache=False)
@login_required_json
def subscribeToText(request, data):
'''
Adds a text to favorites
takes {
id: string, // text id
user: string // username (admin-only)
}
returns {}
see: unsubscribeFromText
'''
text = get_text_or_404_json(data['id'])
user = request.user
if text.status == 'public' and \
text.subscribed_users.filter(username=user.username).count() == 0:
text.subscribed_users.add(user)
pos, created = models.Position.objects.get_or_create(text=text, user=user, section='public')
if created:
qs = models.Position.objects.filter(user=user, section='public')
pos.position = qs.aggregate(Max('position'))['position__max'] + 1
pos.save()
add_changelog(request, data, text.get_id())
response = json_response()
return render_to_json_response(response)
actions.register(subscribeToText, cache=False)
@login_required_json
def unsubscribeFromText(request, data):
'''
Removes a text from favorites
takes {
id: string // text id
user: string // username (admin-only)
}
returns {}
see: subscribeToText
'''
text = get_text_or_404_json(data['id'])
user = request.user
text.subscribed_users.remove(user)
models.Position.objects.filter(text=text, user=user, section='public').delete()
response = json_response()
add_changelog(request, data, text.get_id())
return render_to_json_response(response)
actions.register(unsubscribeFromText, cache=False)
@login_required_json
def sortTexts(request, data):
'''
Sets the order of texts in a given section
takes {
section: string, // 'personal', 'favorite' or 'featured'
ids: [string] // ordered list of text ids
}
returns {}
notes: Setting the order of featured texts requires the appropriate
capability.
see: addText, findTexts, getText, editText, removeText
'''
position = 0
section = data['section']
section = {
'favorite': 'public'
}.get(section,section)
#ids = list(set(data['ids']))
ids = data['ids']
if section == 'featured' and not request.user.profile.capability('canEditFeaturedTexts'):
response = json_response(status=403, text='not allowed')
else:
user = request.user
if section == 'featured':
for i in ids:
l = get_text_or_404_json(i)
qs = models.Position.objects.filter(section=section, text=l)
if qs.count() > 0:
pos = qs[0]
else:
pos = models.Position(text=l, user=user, section=section)
if pos.position != position:
pos.position = position
pos.save()
position += 1
models.Position.objects.filter(section=section, text=l).exclude(id=pos.id).delete()
else:
for i in ids:
l = get_text_or_404_json(i)
pos, created = models.Position.objects.get_or_create(text=l,
user=request.user, section=section)
if pos.position != position:
pos.position = position
pos.save()
position += 1
response = json_response()
return render_to_json_response(response)
actions.register(sortTexts, cache=False)
def icon(request, id, size=16):
if not size:
size = 16
id = id.split(':')
username = id[0]
textname = ":".join(id[1:])
qs = models.Text.objects.filter(user__username=username, name=textname)
if qs.count() == 1 and qs[0].accessible(request.user):
text = qs[0]
icon = text.get_icon(int(size))
else:
icon = os.path.join(settings.STATIC_ROOT, 'jpg/list256.jpg')
return HttpFileResponse(icon, content_type='image/jpeg')
def pdf_viewer(request, id):
text = get_text_or_404_json(id)
if text.type == 'pdf' and text.file and not text.uploading:
return render(request, 'pdf/viewer.html', {
'editable': json.dumps(text.editable(request.user)),
'embeds': json.dumps(text.embeds),
'settings': settings,
'url': text.get_absolute_pdf_url()
})
response = json_response(status=404, text='file not found')
return render_to_json_response(response)
def pdf(request, id):
id = id.replace('_', ' ').replace('\t', '_')
text = get_text_or_404_json(id)
if text.type == 'pdf' and text.file and not text.uploading:
return HttpFileResponse(text.file.path, content_type='application/pdf')
response = json_response(status=404, text='file not found')
return render_to_json_response(response)
@login_required_json
def upload(request):
text = get_text_or_404_json(request.POST['id'])
if text.editable(request.user):
#post next chunk
if 'chunk' in request.FILES:
if text.editable(request.user):
response = process_chunk(request, text.save_chunk)
response['resultUrl'] = request.build_absolute_uri(text.get_absolute_url())
return render_to_json_response(response)
return render_to_json_response(response)
#init upload
else:
text.uploading = True
if text.file:
text.file.delete()
text.save()
return render_to_json_response({
'uploadUrl': request.build_absolute_uri('/api/upload/text'),
'url': request.build_absolute_uri(text.get_absolute_url()),
'result': 1
})
else:
response = json_response(status=404, text='permission denied')
response = json_response(status=400, text='this request requires POST')
return render_to_json_response(response)
def text(request, id=''):
id = id.replace('_', ' ').replace('\t', '_')
try:
text = models.Text.get(id)
if id != '' and not text.accessible(request.user):
raise
template = 'text.html'
context = {
'base_url': request.build_absolute_uri('/'),
'description': ox.strip_tags(text.description),
'icon': request.build_absolute_uri('/text/%s/icon256.jpg' % text.get_id()),
'settings': settings,
'text': text,
'title': ox.strip_tags(text.name),
'url': request.build_absolute_uri(text.get_absolute_url()),
}
except:
template = 'index.html'
context = {
'base_url': request.build_absolute_uri('/'),
'settings': settings,
'title': settings.SITENAME
}
return render(request, template, context)