def request(method, uuid, body=None):
log.debug("Sending request method=%r, ticket=%r, body=%r",
method, uuid, body)
con = uhttp.UnixHTTPConnection(DAEMON_SOCK)
with closing(con):
try:
con.request(method, "/tickets/%s" % uuid, body=body)
res = con.getresponse()
except (httplib.HTTPException, EnvironmentError) as e:
raise se.ImageTicketsError("Error communicating with "
"ovirt-imageio-daemon: "
"{error}".format(error=e))
if res.status >= 300:
try:
content_length = int(res.getheader("content-length",
default=""))
except ValueError as e:
error_info = {"explanation": "Invalid content-length",
"detail": str(e)}
raise se.ImageDaemonError(res.status, res.reason, error_info)
try:
res_data = res.read(content_length)
except EnvironmentError as e:
error_info = {"explanation": "Error reading response",
"detail": str(e)}
raise se.ImageDaemonError(res.status, res.reason, error_info)
try:
error_info = json.loads(res_data)
except ValueError as e:
error_info = {"explanation": "Invalid JSON", "detail": str(e)}
raise se.ImageDaemonError(res.status, res.reason, error_info)
def _read_content(response):
try:
content_length = int(response.getheader("content-length", default=""))
except ValueError as e:
error_info = {
"explanation": "Invalid content-length",
"detail": str(e)
}
raise se.ImageDaemonError(response.status, response.reason, error_info)
if content_length == 0:
return {}
try:
res_data = response.read(content_length)
except EnvironmentError as e:
error_info = {
"explanation": "Error reading response",
"detail": str(e)
}
raise se.ImageDaemonError(response.status, response.reason, error_info)
try:
return json.loads(res_data.decode("utf8"))
except ValueError as e:
error_info = {"explanation": "Invalid JSON", "detail": str(e)}
raise se.ImageDaemonError(response.status, response.reason, error_info)
def get_ticket(ticket_id):
response, content = _request("GET", ticket_id)
try:
return json.loads(content)
except ValueError as e:
error_info = {"explanation": "Invalid JSON", "detail": str(e)}
raise se.ImageDaemonError(response.status, response.reason, error_info)
def _read_content(response):
# We must consume the entire response, otherwise we cannot use keep-alive
# connections. HTTPResponse.read() is doing the right thing, handling
# request content length or chunked encoding.
try:
res_data = response.read()
except EnvironmentError as e:
error_info = {"explanation": "Error reading response",
"detail": str(e)}
raise se.ImageDaemonError(response.status, response.reason, error_info)
# This can be a "200 OK" with "Content-Length: 0", or "204 No Content"
# without Content-Length header.
# See https://tools.ietf.org/html/rfc7230#section-3.3.2
if not res_data:
return {}
try:
return json.loads(res_data.decode("utf8"))
except ValueError as e:
error_info = {"explanation": "Invalid JSON", "detail": str(e)}
raise se.ImageDaemonError(response.status, response.reason, error_info)
def _read_content(response):
# We must consume the entire response, otherwise we cannot use keep-alive
# connections. HTTPResponse.read() is doing the right thing, handling
# request content length or chunked encoding.
try:
# This can also be a "200 OK" with "Content-Length: 0",
# or "204 No Content" without Content-Length header.
# See https://tools.ietf.org/html/rfc7230#section-3.3.2
return response.read()
except EnvironmentError as e:
error_info = {
"explanation": "Error reading response",
"detail": str(e)
}
raise se.ImageDaemonError(response.status, response.reason, error_info)
def request(method, uuid, body=None):
log.debug("Sending request method=%r, ticket=%r, body=%r", method, uuid,
body)
con = uhttp.UnixHTTPConnection(DAEMON_SOCK)
with closing(con):
try:
con.request(method, "/tickets/%s" % uuid, body=body)
res = con.getresponse()
except (http_client.HTTPException, EnvironmentError) as e:
raise se.ImageTicketsError("Error communicating with "
"ovirt-imageio-daemon: "
"{error}".format(error=e))
if res.status >= 300:
content = _read_content(res)
raise se.ImageDaemonError(res.status, res.reason, content)
def _request(method, uuid, body=None):
log.debug("Sending request method=%r, ticket=%r, body=%r", method, uuid,
body)
if body is not None:
body = body.encode("utf8")
con = UnixHTTPConnection(DAEMON_SOCK)
with closing(con):
try:
con.request(method, "/tickets/%s" % uuid, body=body)
res = con.getresponse()
except (http_client.HTTPException, EnvironmentError) as e:
raise se.ImageTicketsError("Error communicating with "
"ovirt-imageio-daemon: "
"{error}".format(error=e))
content = _read_content(res)
if res.status >= 300:
try:
error = content.decode("utf8")
except (UnicodeDecodeError, LookupError):
error = repr(content)
raise se.ImageDaemonError(res.status, res.reason, error)
return res, content
