def wsgi_app(environ, start_response, enable_static=False):
if environ['REQUEST_METHOD'] == 'OPTIONS':
# This is to hanle the preflight request for CORS.
# See https://developer.mozilla.org/en/http_access_control
response = Response()
response.status = "200 OK"
else:
params = extract_params(environ)
log('------')
path = environ['PATH_INFO'].split(environ['HTTP_HOST'])[-1]
if BASE_PATH:
path = path.split(BASE_PATH)[1]
log(path)
try:
if '/pico/' in path:
path = path.replace('/pico/', '/')
try:
response = handle_api_v1(path, params, environ)
except APIError:
try:
response = handle_pico_js(path, params)
except APIError:
try:
response = handle_api_v2(path, params, environ)
except APIError:
response = not_found_error(path)
elif enable_static:
try:
response = static_file_handler(path)
except OSError, e:
response = not_found_error(path)
else:
def wsgi_app(environ, start_response, enable_static=False):
if environ['REQUEST_METHOD'] == 'OPTIONS':
# This is to hanle the preflight request for CORS.
# See https://developer.mozilla.org/en/http_access_control
response = Response()
response.status = "200 OK"
else:
params = extract_params(environ)
log('------')
path = environ['PATH_INFO'].split(environ['HTTP_HOST'])[-1]
if BASE_PATH:
path = path.split(BASE_PATH)[1]
log(path)
try:
if '/pico/' in path:
path = path.replace('/pico/', '/')
try:
response = handle_api_v1(path, params, environ)
except APIError:
try:
response = handle_pico_js(path, params)
except APIError:
try:
response = handle_api_v2(path, params, environ)
except APIError:
response = not_found_error(path)
elif enable_static:
try:
response = static_file_handler(path)
except OSError, e:
response = not_found_error(path)
else:
def call(params, request):
func = params.get('_function', '')
module_name = params.get('_module', '')
args = {}
for k in params.keys():
if not (k.startswith('_') or k.startswith('pico_')):
params[k] = params[k]
try:
args[k] = json.loads(params[k])
except Exception:
try:
args[k] = json.loads(params[k].replace("'", '"'))
except Exception:
args[k] = params[k]
callback = params.get('_callback', None)
init_args = json.loads(params.get('_init', '[]'))
class_name = params.get('_class', None)
usecache = json.loads(params.get('_usecache', 'true'))
x_session_id = params.get('_x_session_id', None)
if x_session_id:
request['X-SESSION-ID'] = x_session_id
response = Response()
if usecache and os.path.exists(CACHE_PATH):
try:
response = serve_file(CACHE_PATH + cache_key(params))
log("Serving from cache")
except OSError:
pass
if not response.content:
module = pico.modules.load(module_name, RELOAD)
json_loaders = getattr(module, "json_loaders", [])
from_json = lambda s: pico.from_json(s, json_loaders)
for k in args:
args[k] = from_json(args[k])
if class_name:
init_args = map(from_json, init_args)
response = call_method(module, class_name, func, args, init_args)
else:
response = call_function(module, func, args)
response.json_dumpers = getattr(module, "json_dumpers", {})
log(usecache, response.cacheable)
if usecache and response.cacheable:
log("Saving to cache")
try:
os.stat(CACHE_PATH)
except Exception:
os.mkdir(CACHE_PATH)
f = open(CACHE_PATH + cache_key(params) + '.json', 'w')
out = response.output
if hasattr(out, 'read'):
out = out.read()
response.output.seek(0)
else:
out = out[0]
f.write(out)
f.close()
response.callback = callback
return response
def call(params, request):
func = params.get('_function', '')
module_name = params.get('_module', '')
args = {}
for k in params.keys():
if not (k.startswith('_') or k.startswith('pico_')):
params[k] = params[k]
try:
args[k] = json.loads(params[k])
except Exception:
try:
args[k] = json.loads(params[k].replace("'", '"'))
except Exception:
args[k] = params[k]
callback = params.get('_callback', None)
init_args = json.loads(params.get('_init', '[]'))
class_name = params.get('_class', None)
usecache = json.loads(params.get('_usecache', 'true'))
x_session_id = params.get('_x_session_id', None)
if x_session_id:
request['X-SESSION-ID'] = x_session_id
response = Response()
if usecache and os.path.exists(CACHE_PATH):
try:
response = serve_file(CACHE_PATH + cache_key(params))
log("Serving from cache")
except OSError:
pass
if not response.content:
module = pico.modules.load(module_name, RELOAD)
json_loaders = getattr(module, "json_loaders", [])
from_json = lambda s: pico.from_json(s, json_loaders)
for k in args:
args[k] = from_json(args[k])
if class_name:
init_args = map(from_json, init_args)
response = call_method(module, class_name, func, args, init_args)
else:
response = call_function(module, func, args)
response.json_dumpers = getattr(module, "json_dumpers", {})
log(usecache, response.cacheable)
if usecache and response.cacheable:
log("Saving to cache")
try:
os.stat(CACHE_PATH)
except Exception:
os.mkdir(CACHE_PATH)
f = open(CACHE_PATH + cache_key(params) + '.json', 'w')
out = response.output
if hasattr(out, 'read'):
out = out.read()
response.output.seek(0)
else:
out = out[0]
f.write(out)
f.close()
response.callback = callback
return response
def serve_file(file_path):
response = Response()
size = os.path.getsize(file_path)
mimetype = mimetypes.guess_type(file_path)
response.set_header("Content-type", mimetype[0] or 'text/plain')
response.set_header("Content-length", str(size))
response.set_header("Cache-Control", 'public, max-age=22222222')
response.content = open(file_path, 'rb')
response.type = "file"
return response
def serve_file(file_path):
response = Response()
size = os.path.getsize(file_path)
mimetype = mimetypes.guess_type(file_path)
response.set_header("Content-type", mimetype[0] or 'text/plain')
response.set_header("Content-length", str(size))
response.set_header("Cache-Control", 'public, max-age=22222222')
response.content = open(file_path, 'rb')
response.type = "file"
return response
def generate_exception_report(e, path, params):
response = Response()
full_tb = traceback.extract_tb(sys.exc_info()[2])
tb_str = ''
for tb in full_tb:
tb_str += "File '%s', line %s, in %s; " % (tb[0], tb[1], tb[2])
report = {}
report['exception'] = str(e)
report['traceback'] = tb_str
report['url'] = path.replace('/pico/', '/')
report['params'] = dict([(k, _value_summary(params[k])) for k in params])
log(json.dumps(report, indent=1))
response.content = report
response.status = '500 ' + str(e)
return response
def generate_exception_report(e, path, params):
response = Response()
full_tb = traceback.extract_tb(sys.exc_info()[2])
tb_str = ''
for tb in full_tb:
tb_str += "File '%s', line %s, in %s; " % (tb[0], tb[1], tb[2])
report = {}
report['exception'] = str(e)
report['traceback'] = tb_str
report['url'] = path.replace('/pico/', '/')
report['params'] = dict([(k, _value_summary(params[k])) for k in params])
log(json.dumps(report, indent=1))
response.content = report
response.status = '500 ' + str(e)
return response
def call_function(module, function_name, parameters):
try:
f = getattr(module, function_name)
except AttributeError:
raise Exception("No matching function availble. "
"You asked for %s with these parameters %s!" %
(function_name, parameters))
results = f(**parameters)
response = Response(content=results)
if hasattr(f, 'cacheable') and f.cacheable:
response.cacheable = True
if hasattr(f, 'stream') and f.stream and STREAMING:
response.type = "stream"
elif response.content.__class__.__name__ == 'generator':
response.type = "chunks"
return response
def call_function(module, function_name, parameters):
try:
f = getattr(module, function_name)
except AttributeError:
raise Exception("No matching function availble. "
"You asked for %s with these parameters %s!" % (
function_name, parameters))
results = f(**parameters)
response = Response(content=results)
if hasattr(f, 'cacheable') and f.cacheable:
response.cacheable = True
if hasattr(f, 'stream') and f.stream and STREAMING:
response.type = "stream"
elif response.content.__class__.__name__ == 'generator':
response.type = "chunks"
return response
def wsgi_app(self, environ, start_response, enable_static=False):
if environ['REQUEST_METHOD'] == 'OPTIONS':
# This is to hanle the preflight request for CORS.
# See https://developer.mozilla.org/en/http_access_control
response = Response()
response.status = "200 OK"
else:
params = self.extract_params(environ)
self.log('------')
path = environ['PATH_INFO'].split(environ['HTTP_HOST'])[-1]
if BASE_PATH:
path = path.split(BASE_PATH)[1]
self.log(path)
path = path.replace('/pico/', '/')
try:
response = self.handle_api_v2(path, params, environ)
except PicoError, e:
response = e.response
except False, e:
response = self.generate_exception_report(e, path, params)
def not_found_error(path):
response = Response()
response.status = '404 NOT FOUND'
response.content = '404 File not found'
response.type = 'plaintext'
return response
def not_found_error(path):
response = Response()
response.status = '404 NOT FOUND'
response.content = '404 File not found'
response.type = 'plaintext'
return response
def serve_file(file_path):
response = Response()
fs = os.stat(file_path)
mimetype = mimetypes.guess_type(file_path)
response.set_header("Content-length", str(fs.st_size))
if file_path.endswith('.manifest'):
response.set_header("Content-type", 'text/cache-manifest')
response.set_header("Expires", 'access')
else:
response.set_header("Content-type", mimetype[0] or 'text/plain')
response.set_header("Last-Modified", date_time_string(fs.st_mtime))
response.content = open(file_path, 'rb')
response.type = "file"
return response
def serve_file(file_path):
response = Response()
fs = os.stat(file_path)
mimetype = mimetypes.guess_type(file_path)
response.set_header("Content-length", str(fs.st_size))
if file_path.endswith('.manifest'):
response.set_header("Content-type", 'text/cache-manifest')
response.set_header("Expires", 'access')
else:
response.set_header("Content-type", mimetype[0] or 'text/plain')
response.set_header("Last-Modified", date_time_string(fs.st_mtime))
response.content = open(file_path, 'rb')
response.type = "file"
return response
