def download(self,
request,
db,
chunk_size=DEFAULT_CHUNK_SIZE,
attachment=True,
download_filename=None):
"""
Example of usage in controller::
def download():
return response.download(request, db)
Downloads from http://..../download/filename
"""
from pydal.exceptions import NotAuthorizedException, NotFoundException
current.session.forget(current.response)
if not request.args:
raise HTTP(404)
name = request.args[-1]
items = re.compile('(?P<table>.*?)\.(?P<field>.*?)\..*').match(name)
if not items:
raise HTTP(404)
(t, f) = (items.group('table'), items.group('field'))
try:
field = db[t][f]
except AttributeError:
raise HTTP(404)
try:
(filename, stream) = field.retrieve(name, nameonly=True)
except NotAuthorizedException:
raise HTTP(403)
except NotFoundException:
raise HTTP(404)
except IOError:
raise HTTP(404)
headers = self.headers
headers['Content-Type'] = contenttype(name)
if download_filename is None:
download_filename = filename
if attachment:
# Browsers still don't have a simple uniform way to have non ascii
# characters in the filename so for now we are percent encoding it
if isinstance(download_filename, unicodeT):
download_filename = download_filename.encode('utf-8')
download_filename = urllib_quote(download_filename)
headers['Content-Disposition'] = \
'attachment; filename="%s"' % download_filename.replace('"', '\"')
return self.stream(stream, chunk_size=chunk_size, request=request)
def download(self, request, db, chunk_size=DEFAULT_CHUNK_SIZE, attachment=True, download_filename=None):
"""
Example of usage in controller::
def download():
return response.download(request, db)
Downloads from http://..../download/filename
"""
from pydal.helpers.regex import REGEX_UPLOAD_PATTERN
from pydal.exceptions import NotAuthorizedException, NotFoundException
current.session.forget(current.response)
if not request.args:
raise HTTP(404)
name = request.args[-1]
items = re.match(REGEX_UPLOAD_PATTERN, name)
if not items:
raise HTTP(404)
t = items.group('table'); f = items.group('field')
try:
field = db[t][f]
except (AttributeError, KeyError):
raise HTTP(404)
try:
(filename, stream) = field.retrieve(name, nameonly=True)
except NotAuthorizedException:
raise HTTP(403)
except NotFoundException:
raise HTTP(404)
except IOError:
raise HTTP(404)
headers = self.headers
headers['Content-Type'] = contenttype(name)
if download_filename is None:
download_filename = filename
if attachment:
# Browsers still don't have a simple uniform way to have non ascii
# characters in the filename so for now we are percent encoding it
if isinstance(download_filename, unicodeT):
download_filename = download_filename.encode('utf-8')
download_filename = urllib_quote(download_filename)
headers['Content-Disposition'] = \
'attachment; filename="%s"' % download_filename.replace('"', '\\"')
return self.stream(stream, chunk_size=chunk_size, request=request)
def wsgibase(environ, responder):
"""
The gluon wsgi application. The first function called when a page
is requested (static or dynamic). It can be called by paste.httpserver
or by apache mod_wsgi (or any WSGI-compatible server).
- fills request with info
- the environment variables, replacing '.' with '_'
- adds web2py path and version info
- compensates for fcgi missing path_info and query_string
- validates the path in url
The url path must be either:
1. for static pages:
- /<application>/static/<file>
2. for dynamic pages:
- /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
The naming conventions are:
- application, controller, function and extension may only contain
`[a-zA-Z0-9_]`
- file and sub may also contain '-', '=', '.' and '/'
"""
eget = environ.get
current.__dict__.clear()
request = Request(environ)
response = Response()
session = Session()
env = request.env
# env.web2py_path = global_settings.applications_parent
env.web2py_version = web2py_version
# env.update(global_settings)
static_file = False
http_response = None
try:
try:
try:
# ##################################################
# handle fcgi missing path_info and query_string
# select rewrite parameters
# rewrite incoming URL
# parse rewritten header variables
# parse rewritten URL
# serve file if static
# ##################################################
fixup_missing_path_info(environ)
(static_file, version, environ) = url_in(request, environ)
response.status = env.web2py_status_code or response.status
if static_file:
if eget('QUERY_STRING', '').startswith('attachment'):
response.headers['Content-Disposition'] \
= 'attachment'
if version:
response.headers['Cache-Control'] = 'max-age=315360000'
response.headers[
'Expires'] = 'Thu, 31 Dec 2037 23:59:59 GMT'
response.stream(static_file, request=request)
# ##################################################
# fill in request items
# ##################################################
app = request.application # must go after url_in!
if not global_settings.local_hosts:
local_hosts = set(['127.0.0.1', '::ffff:127.0.0.1', '::1'])
if not global_settings.web2py_runtime_gae:
try:
fqdn = socket.getfqdn()
local_hosts.add(socket.gethostname())
local_hosts.add(fqdn)
local_hosts.update([
addrinfo[4][0]
for addrinfo in getipaddrinfo(fqdn)
])
if env.server_name:
local_hosts.add(env.server_name)
local_hosts.update([
addrinfo[4][0] for addrinfo in
getipaddrinfo(env.server_name)
])
except (socket.gaierror, TypeError):
pass
global_settings.local_hosts = list(local_hosts)
else:
local_hosts = global_settings.local_hosts
client = get_client(env)
x_req_with = str(env.http_x_requested_with).lower()
request.update(
client=client,
folder=abspath('applications', app),
ajax=x_req_with == 'xmlhttprequest',
cid=env.http_web2py_component_element,
is_local=(env.remote_addr in local_hosts
and client == env.remote_addr),
is_shell=False,
is_scheduler=False,
is_https=env.wsgi_url_scheme in HTTPS_SCHEMES
or request.env.http_x_forwarded_proto in HTTPS_SCHEMES
or env.https == 'on')
request.url = environ['PATH_INFO']
# ##################################################
# access the requested application
# ##################################################
disabled = pjoin(request.folder, 'DISABLED')
if not exists(request.folder):
if app == rwthread.routes.default_application \
and app != 'welcome':
redirect(URL('welcome', 'default', 'index'))
elif rwthread.routes.error_handler:
_handler = rwthread.routes.error_handler
redirect(
URL(_handler['application'],
_handler['controller'],
_handler['function'],
args=app))
else:
raise HTTP(404,
rwthread.routes.error_message %
'invalid request',
web2py_error='invalid application')
elif not request.is_local and exists(disabled):
five0three = os.path.join(request.folder, 'static',
'503.html')
if os.path.exists(five0three):
raise HTTP(503, open(five0three, 'r').read())
else:
raise HTTP(
503,
"<html><body><h1>Temporarily down for maintenance</h1></body></html>"
)
# ##################################################
# build missing folders
# ##################################################
create_missing_app_folders(request)
# ##################################################
# get the GET and POST data
# ##################################################
# parse_get_post_vars(request, environ)
# ##################################################
# expose wsgi hooks for convenience
# ##################################################
request.wsgi = LazyWSGI(environ, request, response)
# ##################################################
# load cookies
# ##################################################
if env.http_cookie:
for single_cookie in env.http_cookie.split(';'):
single_cookie = single_cookie.strip()
if single_cookie:
try:
request.cookies.load(single_cookie)
except Cookie.CookieError:
pass # single invalid cookie ignore
# ##################################################
# try load session or create new session file
# ##################################################
if not env.web2py_disable_session:
session.connect(request, response)
# ##################################################
# run controller
# ##################################################
if global_settings.debugging and app != "admin":
import gluon.debug
# activate the debugger
gluon.debug.dbg.do_debug(mainpyfile=request.folder)
serve_controller(request, response, session)
except HTTP as hr:
http_response = hr
if static_file:
return http_response.to(responder, env=env)
if request.body:
request.body.close()
if hasattr(current, 'request'):
# ##################################################
# on success, try store session in database
# ##################################################
if not env.web2py_disable_session:
session._try_store_in_db(request, response)
# ##################################################
# on success, commit database
# ##################################################
if response.do_not_commit is True:
BaseAdapter.close_all_instances(None)
elif response.custom_commit:
BaseAdapter.close_all_instances(response.custom_commit)
else:
BaseAdapter.close_all_instances('commit')
# ##################################################
# if session not in db try store session on filesystem
# this must be done after trying to commit database!
# ##################################################
if not env.web2py_disable_session:
session._try_store_in_cookie_or_file(request, response)
# Set header so client can distinguish component requests.
if request.cid:
http_response.headers.setdefault(
'web2py-component-content', 'replace')
if request.ajax:
if response.flash:
http_response.headers['web2py-component-flash'] = \
urllib_quote(xmlescape(response.flash).replace(b'\n', b''))
if response.js:
http_response.headers['web2py-component-command'] = \
urllib_quote(response.js.replace('\n', ''))
# ##################################################
# store cookies in headers
# ##################################################
session._fixup_before_save()
http_response.cookies2headers(response.cookies)
ticket = None
except RestrictedError as e:
if request.body:
request.body.close()
# ##################################################
# on application error, rollback database
# ##################################################
# log tickets before rollback if not in DB
if not request.tickets_db:
ticket = e.log(request) or 'unknown'
# rollback
if response._custom_rollback:
response._custom_rollback()
else:
BaseAdapter.close_all_instances('rollback')
# if tickets in db, reconnect and store it in db
if request.tickets_db:
ticket = e.log(request) or 'unknown'
http_response = \
HTTP(500, rwthread.routes.error_message_ticket %
dict(ticket=ticket),
web2py_error='ticket %s' % ticket)
except:
if request.body:
request.body.close()
# ##################################################
# on application error, rollback database
# ##################################################
try:
if response._custom_rollback:
response._custom_rollback()
else:
BaseAdapter.close_all_instances('rollback')
except:
pass
e = RestrictedError('Framework', '', '', locals())
ticket = e.log(request) or 'unrecoverable'
http_response = \
HTTP(500, rwthread.routes.error_message_ticket
% dict(ticket=ticket),
web2py_error='ticket %s' % ticket)
finally:
if response and hasattr(response, 'session_file') \
and response.session_file:
response.session_file.close()
session._unlock(response)
http_response, new_environ = try_rewrite_on_error(http_response, request,
environ, ticket)
if not http_response:
return wsgibase(new_environ, responder)
if global_settings.web2py_crontype == 'soft':
cmd_opts = global_settings.cmd_options
newcron.softcron(global_settings.applications_parent,
apps=cmd_opts and cmd_opts.crontabs)
return http_response.to(responder, env=env)
def googledoc_viewer(url):
return '<iframe src="https://docs.google.com/viewer?url=%s&embedded=true" style="max-width:100%%"></iframe>' % urllib_quote(
url)
def wsgibase(environ, responder):
"""
The gluon wsgi application. The first function called when a page
is requested (static or dynamic). It can be called by paste.httpserver
or by apache mod_wsgi (or any WSGI-compatible server).
- fills request with info
- the environment variables, replacing '.' with '_'
- adds web2py path and version info
- compensates for fcgi missing path_info and query_string
- validates the path in url
The url path must be either:
1. for static pages:
- /<application>/static/<file>
2. for dynamic pages:
- /<application>[/<controller>[/<function>[/<sub>]]][.<extension>]
The naming conventions are:
- application, controller, function and extension may only contain
`[a-zA-Z0-9_]`
- file and sub may also contain '-', '=', '.' and '/'
"""
eget = environ.get
current.__dict__.clear()
request = Request(environ)
response = Response()
session = Session()
env = request.env
# env.web2py_path = global_settings.applications_parent
env.web2py_version = web2py_version
# env.update(global_settings)
static_file = False
http_response = None
try:
try:
try:
# ##################################################
# handle fcgi missing path_info and query_string
# select rewrite parameters
# rewrite incoming URL
# parse rewritten header variables
# parse rewritten URL
# serve file if static
# ##################################################
fixup_missing_path_info(environ)
(static_file, version, environ) = url_in(request, environ)
response.status = env.web2py_status_code or response.status
if static_file:
if eget('QUERY_STRING', '').startswith('attachment'):
response.headers['Content-Disposition'] \
= 'attachment'
if version:
response.headers['Cache-Control'] = 'max-age=315360000'
response.headers[
'Expires'] = 'Thu, 31 Dec 2037 23:59:59 GMT'
response.stream(static_file, request=request)
# ##################################################
# fill in request items
# ##################################################
app = request.application # must go after url_in!
if not global_settings.local_hosts:
local_hosts = set(['127.0.0.1', '::ffff:127.0.0.1', '::1'])
if not global_settings.web2py_runtime_gae:
try:
fqdn = socket.getfqdn()
local_hosts.add(socket.gethostname())
local_hosts.add(fqdn)
local_hosts.update([
addrinfo[4][0] for addrinfo
in getipaddrinfo(fqdn)])
if env.server_name:
local_hosts.add(env.server_name)
local_hosts.update([
addrinfo[4][0] for addrinfo
in getipaddrinfo(env.server_name)])
except (socket.gaierror, TypeError):
pass
global_settings.local_hosts = list(local_hosts)
else:
local_hosts = global_settings.local_hosts
client = get_client(env)
x_req_with = str(env.http_x_requested_with).lower()
cmd_opts = global_settings.cmd_options
request.update(
client=client,
folder=abspath('applications', app),
ajax=x_req_with == 'xmlhttprequest',
cid=env.http_web2py_component_element,
is_local=(env.remote_addr in local_hosts and client == env.remote_addr),
is_shell=False,
is_scheduler=False,
is_https=env.wsgi_url_scheme in HTTPS_SCHEMES or
request.env.http_x_forwarded_proto in HTTPS_SCHEMES or env.https == 'on'
)
request.url = environ['PATH_INFO']
# ##################################################
# access the requested application
# ##################################################
disabled = pjoin(request.folder, 'DISABLED')
if not exists(request.folder):
if app == rwthread.routes.default_application \
and app != 'welcome':
redirect(URL('welcome', 'default', 'index'))
elif rwthread.routes.error_handler:
_handler = rwthread.routes.error_handler
redirect(URL(_handler['application'],
_handler['controller'],
_handler['function'],
args=app))
else:
raise HTTP(404, rwthread.routes.error_message
% 'invalid request',
web2py_error='invalid application')
elif not request.is_local and exists(disabled):
five0three = os.path.join(request.folder, 'static', '503.html')
if os.path.exists(five0three):
raise HTTP(503, open(five0three, 'r').read())
else:
raise HTTP(503, "<html><body><h1>Temporarily down for maintenance</h1></body></html>")
# ##################################################
# build missing folders
# ##################################################
create_missing_app_folders(request)
# ##################################################
# get the GET and POST data
# ##################################################
# parse_get_post_vars(request, environ)
# ##################################################
# expose wsgi hooks for convenience
# ##################################################
request.wsgi = LazyWSGI(environ, request, response)
# ##################################################
# load cookies
# ##################################################
if env.http_cookie:
for single_cookie in env.http_cookie.split(';'):
single_cookie = single_cookie.strip()
if single_cookie:
try:
request.cookies.load(single_cookie)
except Cookie.CookieError:
pass # single invalid cookie ignore
# ##################################################
# try load session or create new session file
# ##################################################
if not env.web2py_disable_session:
session.connect(request, response)
# ##################################################
# run controller
# ##################################################
if global_settings.debugging and app != "admin":
import gluon.debug
# activate the debugger
gluon.debug.dbg.do_debug(mainpyfile=request.folder)
serve_controller(request, response, session)
except HTTP as hr:
http_response = hr
if static_file:
return http_response.to(responder, env=env)
if request.body:
request.body.close()
if hasattr(current, 'request'):
# ##################################################
# on success, try store session in database
# ##################################################
if not env.web2py_disable_session:
session._try_store_in_db(request, response)
# ##################################################
# on success, commit database
# ##################################################
if response.do_not_commit is True:
BaseAdapter.close_all_instances(None)
elif response.custom_commit:
BaseAdapter.close_all_instances(response.custom_commit)
else:
BaseAdapter.close_all_instances('commit')
# ##################################################
# if session not in db try store session on filesystem
# this must be done after trying to commit database!
# ##################################################
if not env.web2py_disable_session:
session._try_store_in_cookie_or_file(request, response)
# Set header so client can distinguish component requests.
if request.cid:
http_response.headers.setdefault(
'web2py-component-content', 'replace')
if request.ajax:
if response.flash:
http_response.headers['web2py-component-flash'] = \
urllib_quote(xmlescape(response.flash).replace(b'\n', b''))
if response.js:
http_response.headers['web2py-component-command'] = \
urllib_quote(response.js.replace('\n', ''))
# ##################################################
# store cookies in headers
# ##################################################
session._fixup_before_save()
http_response.cookies2headers(response.cookies)
ticket = None
except RestrictedError as e:
if request.body:
request.body.close()
# ##################################################
# on application error, rollback database
# ##################################################
# log tickets before rollback if not in DB
if not request.tickets_db:
ticket = e.log(request) or 'unknown'
# rollback
if response._custom_rollback:
response._custom_rollback()
else:
BaseAdapter.close_all_instances('rollback')
# if tickets in db, reconnect and store it in db
if request.tickets_db:
ticket = e.log(request) or 'unknown'
http_response = \
HTTP(500, rwthread.routes.error_message_ticket %
dict(ticket=ticket),
web2py_error='ticket %s' % ticket)
except:
if request.body:
request.body.close()
# ##################################################
# on application error, rollback database
# ##################################################
try:
if response._custom_rollback:
response._custom_rollback()
else:
BaseAdapter.close_all_instances('rollback')
except:
pass
e = RestrictedError('Framework', '', '', locals())
ticket = e.log(request) or 'unrecoverable'
http_response = \
HTTP(500, rwthread.routes.error_message_ticket
% dict(ticket=ticket),
web2py_error='ticket %s' % ticket)
finally:
if response and hasattr(response, 'session_file') \
and response.session_file:
response.session_file.close()
session._unlock(response)
http_response, new_environ = try_rewrite_on_error(
http_response, request, environ, ticket)
if not http_response:
return wsgibase(new_environ, responder)
if global_settings.web2py_crontype == 'soft':
newcron.softcron(global_settings.applications_parent).start()
return http_response.to(responder, env=env)
def googledoc_viewer(url):
return '<iframe src="https://docs.google.com/viewer?url=%s&embedded=true" style="max-width:100%%"></iframe>' % urllib_quote(url)
