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recator uploading disk and downloading (#43635)

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Martin Nečas 2018-08-31 09:23:52 +02:00 committed by ansibot
parent 1b54af068d
commit c2fa0d2c4b
1 changed files with 32 additions and 42 deletions
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64
lib/ansible/modules/cloud/ovirt/ovirt_disk.py
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@ -357,34 +357,28 @@ def transfer(connection, module, direction, transfer_func):
def download_disk_image(connection, module):
def _transfer(transfer_service, proxy_connection, proxy_url, transfer_ticket):
disks_service = connection.system_service().disks_service()
disk = disks_service.disk_service(module.params['id']).get()
size = disk.actual_size
BUF_SIZE = 128 * 1024
transfer_headers = {
'Authorization': transfer_ticket,
}
with open(module.params['download_image_path'], "wb") as mydisk:
pos = 0
MiB_per_request = 8
chunk_size = 1024 * 1024 * MiB_per_request
while pos < size:
transfer_service.extend()
transfer_headers['Range'] = 'bytes=%d-%d' % (pos, min(size, pos + chunk_size) - 1)
proxy_connection.request(
'GET',
proxy_url.path,
headers=transfer_headers,
)
r = proxy_connection.getresponse()
if r.status >= 300:
raise Exception("Error: %s" % r.read())
path = module.params["download_image_path"]
image_size = int(r.getheader('Content-Length'))
with open(path, "wb") as mydisk:
pos = 0
while pos < image_size:
to_read = min(image_size - pos, BUF_SIZE)
chunk = r.read(to_read)
if not chunk:
raise RuntimeError("Socket disconnected")
mydisk.write(chunk)
pos += len(chunk)
try:
mydisk.write(r.read())
except IncompleteRead as e:
mydisk.write(e.partial)
break
pos += chunk_size
return transfer(
connection,
module,
@ -395,28 +389,24 @@ def download_disk_image(connection, module):
def upload_disk_image(connection, module):
def _transfer(transfer_service, proxy_connection, proxy_url, transfer_ticket):
BUF_SIZE = 128 * 1024
path = module.params['upload_image_path']
transfer_headers = {
'Authorization': transfer_ticket,
}
image_size = os.path.getsize(path)
proxy_connection.putrequest("PUT", proxy_url.path)
proxy_connection.putheader('Content-Length', "%d" % (image_size,))
proxy_connection.endheaders()
with open(path, "rb") as disk:
pos = 0
MiB_per_request = 8
size = os.path.getsize(path)
chunk_size = 1024 * 1024 * MiB_per_request
while pos < size:
transfer_service.extend()
transfer_headers['Content-Range'] = "bytes %d-%d/%d" % (pos, min(pos + chunk_size, size) - 1, size)
proxy_connection.request(
'PUT',
proxy_url.path,
disk.read(chunk_size),
headers=transfer_headers,
)
r = proxy_connection.getresponse()
if r.status >= 400:
raise Exception("Failed to upload disk image.")
pos += chunk_size
while pos < image_size:
to_read = min(image_size - pos, BUF_SIZE)
chunk = disk.read(to_read)
if not chunk:
transfer_service.pause()
raise RuntimeError("Unexpected end of file at pos=%d" % pos)
proxy_connection.send(chunk)
pos += len(chunk)
return transfer(
connection,
module,