将curl命令转换为pycurl
所以我使用的curl命令如下：
cmd = "curl --write-out %{http_code} -X PUT -T " + self.basedir + putfile + " -# -o /dev/null " + self.uri + "/" + self.dist + "/" + putfile
我想将其从调用系统命令更改为使用pycurl。通过这种方式，我可以对其进行更精细的控制，并最终为其实现进度条。但是，当我尝试转换为python时，生成的脚本失败。这是我对python脚本的努力：
f = open(filepath, "rb")
fs = os.path.getsize(filepath)
c = pycurl.Curl()
c.setopt(c.URL, target_url)
c.setopt(c.HTTPHEADER, ["User-Agent: Load Tool (PyCURL Load Tool)"])
c.setopt(c.PUT, 1)
c.setopt(c.READDATA, f)
c.setopt(c.INFILESIZE, int(fs))
c.setopt(c.NOSIGNAL, 1)
c.setopt(c.VERBOSE, 1)
c.body = StringIO()
c.setopt(c.WRITEFUNCTION, c.body.write)
try:
c.perform()
except:
import traceback
traceback.print_exc(file=sys.stderr)
sys.stderr.flush()
f.close()
c.close()
sys.stdout.write(".")
sys.stdout.flush()
以下是输出内容：
* About to connect() to ************ port 8090 (#0)
* Trying 16.94.124.53... * connected
> PUT /incoming/ HTTP/1.1
Host: ***********
Accept: */*
User-Agent: Load Tool (PyCURL Load Tool)
Content-Length: 21
Expect: 100-continue
< HTTP/1.1 100 Continue
* We are completely uploaded and fine
< HTTP/1.1 500 Internal Server Error
< Content-type: text/html
* no chunk, no close, no size. Assume close to signal end
<
先谢谢你的帮助！
1 个答案:
答案 0 :(得分：0)
我上传了工作模块，您可以通过代码查找答案。
- 你可以通过挖掘libcurl examples and Docs. 找到几乎所有关于pycurl的答案
'''
Created on Oct 22, 2013
@author: me
'''
import pycurl
import os
import wx
import sys
import hashlib
from cStringIO import StringIO
def get_file_hash(full_filename):
BLOCKSIZE = 65536
hasher = hashlib.md5()
with open(full_filename, 'rb') as afile:
buf = afile.read(BLOCKSIZE)
while len(buf) > 0:
hasher.update(buf)
buf = afile.read(BLOCKSIZE)
return hasher.hexdigest()
class FtpUpload(object):
def __init__(self, server, username, password, **items):
self.server = server
self.username = username
self.password = password
self.gauge = items.get("gauge")
self.sb_speed = items.get("sb_speed")
self.upload_file_size = items.get("upload_file_size")
self.upload_file_speed = items.get("upload_file_speed")
self.filesize = 0
self.ftp_filehash = '0'
def sizeToNiceString(self, byteCount):
for (cutoff, label) in [(1024*1024*1024, "GB"), (1024*1024, "MB"), (1024, "KB")]:
if byteCount >= cutoff:
return "%.2f %s" % (byteCount * 1.0 / cutoff, label)
if byteCount == 1:
return "1 byte"
else:
return "%d bytes" % byteCount
def initRange(self, filesize):
self.filesize = filesize
self.gauge.SetRange(filesize)
def updateValue(self, upload_d):
upload_d_int = int(upload_d)
self.gauge.SetValue(upload_d_int)
upload_d_str = self.sizeToNiceString(upload_d)
upload_percent = int((upload_d*100)/self.filesize)
upload_d_status = "{0}/{1} ({2}%)".format(upload_d_str, self.sizeToNiceString(self.filesize), upload_percent)
self.sb_speed.SetStatusText(upload_d_status, 1)
self.upload_file_size.SetLabel(upload_d_status)
self.upload_file_speed.SetLabel(upload_d_str)
def progress(self, download_t, download_d, upload_t, upload_d):
self.updateValue(upload_d)
def test(self, debug_type, debug_msg):
if len(debug_msg) < 300:
print "debug(%d): %s" % (debug_type, debug_msg.strip())
def ftp_file_hash(self, buf):
sys.stderr.write("{0:.<20} : {1}\n".format('FTP RAW ', buf.strip()))
ftp_filehash = dict()
item = buf.strip().split('\n')[0]
ext = item.split('.')[1]
if len(ext) > 3:
ftp_filename = item[:-33]
ftp_filehash = item[-32:]
self.ftp_filehash = ftp_filehash
def get_ftp_file_hash(self, filename):
c = pycurl.Curl()
list_file_hash = 'LIST -1 ' + filename + "_*"
sys.stderr.write("{0:.<20} : {1} \n".format('FTP command ', list_file_hash))
c.setopt(pycurl.URL, self.server)
c.setopt(pycurl.USERNAME, self.username)
c.setopt(pycurl.PASSWORD, self.password)
c.setopt(pycurl.VERBOSE, False)
c.setopt(pycurl.DEBUGFUNCTION, self.test)
c.setopt(pycurl.CUSTOMREQUEST, list_file_hash)
c.setopt(pycurl.WRITEFUNCTION, self.ftp_file_hash)
c.perform()
c.close()
def delete_ftp_hash_file(self, ftp_hash_file_old):
c = pycurl.Curl()
delete_hash_file = 'DELE ' + ftp_hash_file_old
sys.stderr.write("{0:.<20} : {1} \n".format('FTP command ', delete_hash_file))
c.setopt(pycurl.URL, self.server)
c.setopt(pycurl.USERNAME, self.username)
c.setopt(pycurl.PASSWORD, self.password)
c.setopt(pycurl.VERBOSE, False)
c.setopt(pycurl.DEBUGFUNCTION, self.test)
c.setopt(pycurl.CUSTOMREQUEST, delete_hash_file)
try:
c.perform()
except Exception as e:
print e
c.close()
def upload(self, full_filename, filesize):
self.initRange(filesize)
filename = os.path.basename(full_filename)
sys.stderr.write("filename: %s\n" % full_filename)
c = pycurl.Curl()
c.setopt(pycurl.USERNAME, self.username)
c.setopt(pycurl.PASSWORD, self.password)
c.setopt(pycurl.VERBOSE, False)
c.setopt(pycurl.DEBUGFUNCTION, self.test)
c.setopt(pycurl.NOBODY, True)
c.setopt(pycurl.HEADER, False)
ftp_file_path = os.path.join(self.server, os.path.basename(full_filename))
file_hash = get_file_hash(full_filename)
ftp_hash_file = ftp_file_path + "_%s" % file_hash
# Getting filesize if exist on server.
try:
c.setopt(pycurl.URL, ftp_file_path)
c.perform()
filesize_offset = int(c.getinfo(pycurl.CONTENT_LENGTH_DOWNLOAD))
except Exception as error_msg:
print error_msg
wx.MessageBox(str(error_msg), 'Connection error!',
wx.OK | wx.ICON_ERROR)
# Exit upload function.
return True
ftp_file_append = True
# Get ftp file hash.
self.get_ftp_file_hash(filename)
offset = filesize_offset == -1 and '0' or filesize_offset
sys.stderr.write("L_file hash : {0:.<60}: {1:<40}\n".format(filename, file_hash))
sys.stderr.write("F_file hash : {0:.<60}: {1:<40}\n".format(filename, self.ftp_filehash))
sys.stderr.write("{0:15} : {1:.>15}\n".format('filesize:', filesize))
sys.stderr.write("{0:15} : {1:.>15}\n".format('ftp_filesize', offset))
sys.stderr.write("{0:15} : {1:.>15}\n".format('to upload:', filesize - int(offset)))
# File not exist on FTP server.
if filesize_offset == -1:
# file not exist: uploading from offset zero.
ftp_file_append = False
filesize_offset = 0
# Local and FTP file size and files MD5 are the same.
elif filesize_offset == self.filesize and file_hash == self.ftp_filehash:
sys.stderr.write("--- File exist on server! ---\n\n")
self.upload_file_speed.SetLabel("File exist on server!")
self.sb_speed.SetStatusText("File exist on server!", 1)
# Check next filename.
return False
# Ftp file and local file different data.
elif file_hash != self.ftp_filehash:
ftp_file_append = False
filesize_offset = 0
ftp_hash_file_old = filename + "_" + self.ftp_filehash
# delete old hash file.
self.delete_ftp_hash_file(ftp_hash_file_old)
c.setopt(pycurl.FTPAPPEND, ftp_file_append)
c.setopt(pycurl.UPLOAD, True)
c.setopt(pycurl.PROGRESSFUNCTION, self.progress)
with open('filehash.txt', 'w') as f:
f.write(file_hash)
for item in ("filehash.txt", full_filename):
# dont show progress by default.
noprogress = True
# upload ftp_hash_file first.
ftp_url = ftp_hash_file
with open(item, "rb") as f:
# chages ftp_url and show progress values, add filesize_offset.
if item != "filehash.txt":
f.seek(filesize_offset)
noprogress = False
ftp_url = ftp_file_path
c.setopt(pycurl.URL, ftp_url)
c.setopt(pycurl.NOPROGRESS, noprogress)
c.setopt(pycurl.READFUNCTION, f.read)
try:
c.perform()
if item != "filehash.txt":
sys.stderr.write("{0:15} : {1:.>15}\n\n".format("size uploaded", int(c.getinfo(pycurl.SIZE_UPLOAD))))
except Exception as error_msg:
print error_msg
wx.MessageBox(str(error_msg), 'Connection error!',
wx.OK | wx.ICON_ERROR)
# Exit upload function.
return True
self.ftp_filehash = '0'
c.close()
if __name__ == '__main__':
pass
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