seitime-frappe/frappe/utils/response.py
2014-03-05 18:15:02 +05:30

115 lines
3.8 KiB
Python

# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
# MIT License. See license.txt
from __future__ import unicode_literals
import json
import datetime
import gzip, cStringIO
import frappe
import frappe.utils
import frappe.sessions
import frappe.model.utils
from werkzeug.local import LocalProxy
def report_error(status_code):
if status_code!=404 or frappe.conf.logging:
frappe.errprint(frappe.utils.get_traceback())
frappe._response.status_code = status_code
if frappe.request_method == "POST":
frappe.db.rollback()
def build_response():
print_map = {
'csv': print_csv,
'download': print_raw,
'json': print_json,
'page': print_page,
'redirect': redirect
}
print_map.get(frappe.response.get('type'), print_json)()
def print_page():
"""print web page"""
from frappe.website.render import render
render(frappe.response['page_name'])
def print_json():
make_logs()
cleanup_docs()
frappe._response.headers["Content-Type"] = "text/json; charset: utf-8"
print_zip(json.dumps(frappe.local.response, default=json_handler, separators=(',',':')))
def redirect():
frappe._response.data = """<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
<title>Redirecting...</title>
<h1>Redirecting...</h1>
<p>You should be redirected automatically to target URL: <a href="{location}">/</a>.
If not click the link.'""".format(location=frappe.response.location)
frappe._response.headers["Content-Type"] = "text/html; charset: utf-8"
frappe._response.status_code = frappe.response.status_code or 302
frappe._response.location = frappe.response.location
def cleanup_docs():
if frappe.response.get('docs') and type(frappe.response['docs'])!=dict:
frappe.response['docs'] = frappe.model.utils.compress(frappe.response['docs'])
def print_csv():
frappe._response.headers["Content-Type"] = \
"text/csv; charset: utf-8"
frappe._response.headers["Content-Disposition"] = \
"attachment; filename=%s.csv" % frappe.response['doctype'].replace(' ', '_')
frappe._response.data = frappe.response['result']
def print_raw():
frappe._response.headers["Content-Type"] = \
mimetypes.guess_type(frappe.response['filename'])[0] or "application/unknown"
frappe._response.headers["Content-Disposition"] = \
"filename=%s" % frappe.response['filename'].replace(' ', '_')
frappe._response.data = frappe.response['filecontent']
def make_logs():
"""make strings for msgprint and errprint"""
if frappe.error_log:
# frappe.response['exc'] = json.dumps("\n".join([cstr(d) for d in frappe.error_log]))
frappe.response['exc'] = json.dumps([frappe.utils.cstr(d) for d in frappe.local.error_log])
if frappe.local.message_log:
frappe.response['_server_messages'] = json.dumps([frappe.utils.cstr(d) for d in frappe.local.message_log])
if frappe.debug_log and frappe.conf.get("logging") or False:
frappe.response['_debug_messages'] = json.dumps(frappe.local.debug_log)
def print_zip(response):
response = response.encode('utf-8')
orig_len = len(response)
if accept_gzip() and orig_len>512:
response = compressBuf(response)
frappe._response.headers["Content-Encoding"] = "gzip"
frappe._response.headers["Content-Length"] = str(len(response))
frappe._response.data = response
def json_handler(obj):
"""serialize non-serializable data for json"""
# serialize date
if isinstance(obj, (datetime.date, datetime.timedelta, datetime.datetime)):
return unicode(obj)
elif isinstance(obj, LocalProxy):
return unicode(obj)
else:
raise TypeError, """Object of type %s with value of %s is not JSON serializable""" % \
(type(obj), repr(obj))
def accept_gzip():
if "gzip" in frappe.get_request_header("HTTP_ACCEPT_ENCODING", ""):
return True
def compressBuf(buf):
zbuf = cStringIO.StringIO()
zfile = gzip.GzipFile(mode = 'wb', fileobj = zbuf, compresslevel = 5)
zfile.write(buf)
zfile.close()
return zbuf.getvalue()