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views.py
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views.py
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import os.path
import random
import time
import base64
from django.shortcuts import render_to_response, get_object_or_404
from django.views import static
from django.conf import settings
from django.http import Http404, HttpResponseRedirect, HttpResponse
from django.core.urlresolvers import reverse
from django.utils import simplejson
from django.template import Template,RequestContext
from django.contrib.auth.models import User
from django.views.decorators.cache import cache_page
from django.views.decorators.vary import vary_on_cookie
from models import Pastie, Shell, JSLibraryGroup, JSLibrary, JSLibraryWrap, JSDependency, ExternalResource, DocType
from forms import PastieForm, ShellForm
from base.views import serve_static as base_serve_static
from base.utils import log_to_file, separate_log
# consider better caching for that function.
@vary_on_cookie
def pastie_edit(req, slug=None, version=None, revision=None, author=None, skin=None):
"""
display the edit shell page ( main display)
"""
shell = None
c = {}
try:
server = settings.MOOSHELL_FORCE_SERVER
except:
server = 'http://%s' % req.META['SERVER_NAME']
title = settings.MOOSHELL_NEW_TITLE
doctypes = DocType.objects.all()
if slug:
if skin:
" important as {user}/{slug} is indistingushable from {slug}/{skin} "
try:
user = User.objects.get(username=slug)
author = slug
slug = skin
skin = None
except:
pass
pastie = get_object_or_404(Pastie, slug=slug)
if version == None:
shell = pastie.favourite
else:
user = get_object_or_404(User,username=author) if author else None
shell = get_object_or_404(Shell, pastie__slug=slug, version=version, author=user)
example_url = ''.join([server, shell.get_absolute_url()])
embedded_url = ''.join([server, shell.get_embedded_url()])
shellform = ShellForm(instance=shell)
c.update({
'is_author': (pastie.author and req.user.is_authenticated and pastie.author_id == req.user.id),
'embedded_url': embedded_url
})
title = shell.title if shell.title else settings.MOOSHELL_VIEW_TITLE
for dtd in doctypes:
if dtd.id == shell.doctype.id:
dtd.current = True
else:
example_url = ''
#pastieform = PastieForm()
shellform = ShellForm()
if settings.DEBUG: moo = settings.MOOTOOLS_DEV_CORE
else: moo = settings.MOOTOOLS_CORE
if not skin: skin = req.GET.get('skin',settings.MOOSHELL_DEFAULT_SKIN)
examples = Pastie.objects.all_examples_by_groups()
# TODO: join some js files for less requests
js_libs = [
reverse('mooshell_js', args=[moo]),
reverse('mooshell_js', args=[settings.MOOTOOLS_MORE]),
reverse('codemirror', args=['js/codemirror.js']),
reverse('codemirror', args=['js/mirrorframe.js']),
reverse("mooshell_js", args=["Sidebar.js"]),
reverse('mooshell_js', args=['LayoutCM.js']),
reverse("mooshell_js", args=["Actions.js"]),
reverse("mooshell_js", args=["EditorCM.js"]),
reverse("mooshell_js", args=["Settings.js"]),
]
c.update({
'shellform':shellform,
'shell': shell,
'css_files': [reverse('mooshell_css', args=["%s.css" % skin])],
'js_libs': js_libs,
'examples': examples,
'doctypes': doctypes,
'title': title,
'example_url': example_url,
'web_server': server,
'skin': skin,
'get_dependencies_url': reverse("_get_dependencies",
args=["lib_id"]).replace('lib_id','{lib_id}'),
'get_library_versions_url': reverse("_get_library_versions",
args=["group_id"]).replace('group_id','{group_id}'),
})
return render_to_response('pastie_edit.html',c,
context_instance=RequestContext(req))
def pastie_save(req, nosave=False, skin=None):
"""
retrieve shell from the form, save or display
Fix dependency
"""
if req.method == 'POST':
slug = req.POST.get('slug', None)
if slug:
" UPDATE - get the instance if slug provided "
pastie = get_object_or_404(Pastie,slug=slug)
#pastieform = PastieForm(req.POST, instance=pastieinstance)
else:
" CREATE "
pastie = Pastie()
if not nosave:
if req.user.is_authenticated():
pastie.author = req.user
pastie.save()
shellform = ShellForm(req.POST)
if shellform.is_valid():
" Instantiate shell data from the form "
shell = shellform.save(commit=False)
" Base64 decode "
shell.code_js = base64.b64decode(shell.code_js)
shell.code_html = base64.b64decode(shell.code_html)
shell.code_css = base64.b64decode(shell.code_css)
" Connect shell with pastie "
shell.pastie = pastie
# get javascript dependencies
dependency_ids = [int(dep[1]) for dep in req.POST.items() if dep[0].startswith('js_dependency')]
dependencies = []
for dep_id in dependency_ids:
dep = JSDependency.objects.get(id=dep_id)
dependencies.append(dep)
# append external resources
external_resources = []
ext_ids = req.POST.get('add_external_resources', '').split(',')
for ext_id in ext_ids:
try:
external_resources.append(ExternalResource.objects.get(id=int(ext_id)))
except:
pass
if nosave:
" return the pastie page only "
# no need to connect with pastie
return pastie_display(req, None, shell,
dependencies=dependencies,
resources=external_resources,
skin=skin)
" add user to shell if anyone logged in "
if req.user.is_authenticated():
shell.author = req.user
shell.save()
# add saved dependencies
for dep in dependencies:
shell.js_dependency.add(dep)
# add saved external resources
for ext in external_resources:
shell.external_resources.add(ext)
" return json with pastie url "
return HttpResponse(simplejson.dumps({
'pastie_url_relative': shell.get_absolute_url()
}),mimetype='application/javascript'
)
else:
error = "Shell form does not validate"
for s in shellform:
if hasattr(s, 'errors') and s.errors:
error = error + str(s.__dict__)
else:
error = 'Please use POST request'
# Report errors
return HttpResponse(simplejson.dumps({'error':error}),
mimetype='application/javascript'
)
def pastie_display(req, slug, shell=None, dependencies=[], resources=[], skin=None):
" render the shell only "
if not shell:
pastie = get_object_or_404(Pastie, slug=slug)
shell = pastie.favourite
" prepare dependencies if needed "
dependencies = shell.js_dependency.all()
resources = shell.external_resources.all()
wrap = getattr(shell.js_lib, 'wrap_'+shell.js_wrap, None) if shell.js_wrap else None
if not slug:
" assign dependencies from request "
if not skin: skin = req.GET.get('skin',settings.MOOSHELL_DEFAULT_SKIN)
return render_to_response('pastie_show.html', {
'shell': shell,
'dependencies': dependencies,
'resources': resources,
'resources_length': len(resources),
'wrap': wrap,
'skin': skin,
'skin_css': reverse("mooshell_css", args=['result-%s.css' % skin])
})
# consider better caching for that function.
def embedded(req, slug, version=None, revision=0, author=None, tabs=None, skin=None):
" display embeddable version of the shell "
pastie = get_object_or_404(Pastie,slug=slug)
if version == None:
shell = pastie.favourite
else:
user = get_object_or_404(User,username=author) if author else None
shell = get_object_or_404(Shell, pastie__slug=slug, version=version, author=user)
if not skin: skin = req.GET.get('skin', settings.MOOSHELL_DEFAULT_SKIN)
if not tabs: tabs = req.GET.get('tabs', 'js,resources,html,css,result')
try:
server = settings.MOOSHELL_FORCE_SERVER
except:
server = 'http://%s' % req.META['SERVER_NAME']
height = req.GET.get('height', None)
tabs_order = tabs #req.GET.get('tabs',"js,html,css,result")
tabs_order = tabs_order.split(',')
if not shell.external_resources.all() and "resources" in tabs_order:
tabs_order.remove("resources")
tabs = []
for t in tabs_order:
tab = { 'type': t,
'title': settings.MOOSHELL_EMBEDDED_TITLES[t]
}
if not t in ["result", "resources"]:
tab['code'] = getattr(shell,'code_'+t)
tabs.append(tab)
context = {
'height': height,
'server': server,
'shell': shell,
'skin': skin,
'tabs': tabs,
'code_tabs': ['js', 'css', 'html'],
'css_files': [
reverse('mooshell_css', args=["embedded-%s.css" % skin])
],
'js_libs': [
reverse('mooshell_js', args=[settings.MOOTOOLS_CORE]),
reverse('mooshell_js', args=[settings.MOOTOOLS_MORE]),
]
}
return render_to_response( 'embedded.html',
context,
context_instance=RequestContext(req))
# consider better caching for that function.
def pastie_show(req, slug, version=None, author=None, skin=None):
" render the shell only "
pastie = get_object_or_404(Pastie, slug=slug)
if version == None:
shell = pastie.favourite
else:
user = get_object_or_404(User,username=author) if author else None
shell = get_object_or_404(Shell, pastie__slug=slug, version=version, author=user)
if not skin: skin = req.GET.get('skin', settings.MOOSHELL_DEFAULT_SKIN)
return pastie_display(req, slug, shell,
dependencies=shell.js_dependency.all(),
resources=shell.external_resources.all(), skin=skin)
#TODO: remove if not used
def author_show_part(req, author, slug, part, version=0):
return render_to_response('show_part.html',
{'content': getattr(shell, 'code_'+part)})
# it is bad for automate picking the latest revision
# consider better caching for that function.
def show_part(req, slug, part, version=None, author=None):
pastie = get_object_or_404(Pastie,slug=slug)
if pastie.favourite and version == None:
shell = pastie.favourite
else:
if version == None:
version=0
user = get_object_or_404(User,username=author) if author else None
shell = get_object_or_404(Shell, pastie__slug=slug, version=version, author=user)
return render_to_response('show_part.html',
{'content': getattr(shell, 'code_'+part)})
def ajax_json_echo(req, delay=True):
" echo GET and POST "
if delay:
time.sleep(random.uniform(1,3))
c = {'get_response':{},'post_response':{}}
for key, value in req.GET.items():
c['get_response'].update({key: value})
for key, value in req.POST.items():
c['post_response'].update({key: value})
return HttpResponse(simplejson.dumps(c),mimetype='application/javascript')
def ajax_html_echo(req, delay=True):
if delay:
time.sleep(random.uniform(1,3))
t = req.POST.get('html','')
return HttpResponse(t)
def ajax_xml_echo(req, delay=True):
if delay:
time.sleep(random.uniform(1,3))
t = req.POST.get('xml','')
return HttpResponse(t, mimetype='application/xml')
def ajax_json_response(req):
response_string = req.POST.get('response_string','This is a sample string')
return HttpResponse(simplejson.dumps(
{
'string': response_string,
'array': ['This','is',['an','array'],1,2,3],
'object': {'key': 'value'}
}),
mimetype='application/javascript'
)
def ajax_html_javascript_response(req):
return HttpResponse("""<p>A sample paragraph</p>
<script type='text/javascript'>alert('sample alert');</script>""")
def serve_static(request, path, media='media', type=None):
if path == 'favicon':
path = 'favicon.ico'
return base_serve_static(request, path, media, type)
def get_library_versions(request, group_id):
libraries = JSLibrary.objects.filter(library_group__id=group_id)
c = {'libraries': [
{
'id': l.id,
'version': l.version,
'selected': l.selected,
'group_name': l.library_group.name,
'active': l.active
} for l in libraries
]
}
selected = [l for l in libraries if l.selected]
if selected:
selected = selected[0]
c['dependencies'] = get_dependencies_dict(selected.id)
return HttpResponse(simplejson.dumps(c),mimetype='application/javascript')
def get_dependencies(request, lib_id):
return HttpResponse(simplejson.dumps(get_dependencies_dict(lib_id)),mimetype='application/javascript')
def get_dependencies_dict(lib_id):
dependencies = JSDependency.objects.filter(active=True,library__id=lib_id)
return [{'id': d.id, 'name': d.name, 'selected': d.selected} for d in dependencies ]
def make_favourite(req):
shell_id = req.POST.get('shell_id')
shell = Shell.objects.get(id=shell_id)
if req.user.is_authenticated() and req.user.id == shell.pastie.author.id:
shell.pastie.favourite = shell
shell.pastie.save()
# TODO: clear the cache of the shell
return HttpResponse(simplejson.dumps({'message':'saved as favourite'}),
mimetype="application/javascript")
raise Http404
def api_get_users_pasties(req, author, method='json'):
separate_log()
limit = req.GET.get('limit',50)
callback = req.GET.get('jsoncallback', None)
if not callback:
callback = req.GET.get('callback', None)
user = get_object_or_404(User, username=author)
pasties = Pastie.objects\
.filter(author__username=author)\
.exclude(favourite__title__isnull=True)\
.exclude(favourite__title="")\
.order_by('-created_at')\
[:limit]
try:
server = settings.MOOSHELL_FORCE_SERVER
except:
server = 'http://%s' % req.META['SERVER_NAME']
return render_to_response('api/pasties.%s' % method,
{
'pasties': pasties,
'server': server,
'callback': callback
},
context_instance=RequestContext(req),
mimetype="application/javascript"
)
def add_external_resource(req):
url = req.POST.get('url')
try:
# check if url already in models
resource = ExternalResource.objects.get(url=url)
log_to_file('resource %s chosen' % resource.filename)
except:
# else create resource
resource = ExternalResource(url=url)
resource.save()
log_to_file('resource %s created' % resource.filename)
return HttpResponse(simplejson.dumps({
'id': resource.id,
'url': resource.url,
'filename': resource.filename,
'extension': resource.extension
}), mimetype="application/javascript")