你使用有作爲起點漂亮的斷碼(例如看那個global rootnode
其中name rootnode
使用無處 - 明確半編輯源,並嚴重那個)。
無論如何,你使用「客戶端」爲POST
什麼表格?它如何設置upfile
字段?
爲什麼不使用正常的FieldStorage
方法,如Python's docs中所記錄的?這樣,您可以使用相應字段的.file
屬性來獲取要讀取的類文件對象,或者使用它的.value
屬性將其全部讀取到內存中並將其作爲字符串讀取,再加上字段的.filename
屬性以瞭解上傳的文件名稱。關於FieldStorage
的更詳細但簡明的文檔是here。
編輯:現在的OP編輯了Q可澄清一下,我看這個問題:BaseHTTPServer
確實根據CGI規範不設置環境,所以cgi
模塊是不是十分有用吧。不幸的是,唯一一種簡單的環境設置方法是盜取和破解CGIHTTPServer.py
的大部分代碼(無需重複使用,因此需要,嘆息,複製和粘貼代碼),例如...:
def populenv(self):
path = self.path
dir, rest = '.', 'ciao'
# find an explicit query string, if present.
i = rest.rfind('?')
if i >= 0:
rest, query = rest[:i], rest[i+1:]
else:
query = ''
# dissect the part after the directory name into a script name &
# a possible additional path, to be stored in PATH_INFO.
i = rest.find('/')
if i >= 0:
script, rest = rest[:i], rest[i:]
else:
script, rest = rest, ''
# Reference: http://hoohoo.ncsa.uiuc.edu/cgi/env.html
# XXX Much of the following could be prepared ahead of time!
env = {}
env['SERVER_SOFTWARE'] = self.version_string()
env['SERVER_NAME'] = self.server.server_name
env['GATEWAY_INTERFACE'] = 'CGI/1.1'
env['SERVER_PROTOCOL'] = self.protocol_version
env['SERVER_PORT'] = str(self.server.server_port)
env['REQUEST_METHOD'] = self.command
uqrest = urllib.unquote(rest)
env['PATH_INFO'] = uqrest
env['SCRIPT_NAME'] = 'ciao'
if query:
env['QUERY_STRING'] = query
host = self.address_string()
if host != self.client_address[0]:
env['REMOTE_HOST'] = host
env['REMOTE_ADDR'] = self.client_address[0]
authorization = self.headers.getheader("authorization")
if authorization:
authorization = authorization.split()
if len(authorization) == 2:
import base64, binascii
env['AUTH_TYPE'] = authorization[0]
if authorization[0].lower() == "basic":
try:
authorization = base64.decodestring(authorization[1])
except binascii.Error:
pass
else:
authorization = authorization.split(':')
if len(authorization) == 2:
env['REMOTE_USER'] = authorization[0]
# XXX REMOTE_IDENT
if self.headers.typeheader is None:
env['CONTENT_TYPE'] = self.headers.type
else:
env['CONTENT_TYPE'] = self.headers.typeheader
length = self.headers.getheader('content-length')
if length:
env['CONTENT_LENGTH'] = length
referer = self.headers.getheader('referer')
if referer:
env['HTTP_REFERER'] = referer
accept = []
for line in self.headers.getallmatchingheaders('accept'):
if line[:1] in "\t\n\r ":
accept.append(line.strip())
else:
accept = accept + line[7:].split(',')
env['HTTP_ACCEPT'] = ','.join(accept)
ua = self.headers.getheader('user-agent')
if ua:
env['HTTP_USER_AGENT'] = ua
co = filter(None, self.headers.getheaders('cookie'))
if co:
env['HTTP_COOKIE'] = ', '.join(co)
# XXX Other HTTP_* headers
# Since we're setting the env in the parent, provide empty
# values to override previously set values
for k in ('QUERY_STRING', 'REMOTE_HOST', 'CONTENT_LENGTH',
'HTTP_USER_AGENT', 'HTTP_COOKIE', 'HTTP_REFERER'):
env.setdefault(k, "")
os.environ.update(env)
。
這可能進一步顯着地簡化,但並非沒有花一些時間和精力上的任務:-(
隨着手頭這個populenv
功能,我們可以重新編碼:
def do_POST(self):
populen(self)
form = cgi.FieldStorage(fp=self.rfile)
upfilecontent = form['upfile'].value
if upfilecontent:
fout = open(os.path.join('tmp', form['upfile'].filename), 'wb')
fout.write(upfilecontent)
fout.close()
self.do_GET()
...並過着幸福的生活;-)。 (當然,使用任何體面的WSGI服務器,甚至是the demo one都會容易得多,但這個練習是對CGI及其內部的指導性的;-)。
thnx亞歷克斯。我在do_Post()方法中嘗試了cgi.FieldStorage(),但它返回空類。我應該使用CGIHTTPRequestHandler與單獨的py文件來獲取FieldStorage信息? – 2010-08-01 17:21:48
@tk,你可以這樣做,但沒有理由把它放在一個單獨的'.py'文件中。如果你編輯你的Q以顯示最少量的代碼失敗,而不是指向那個已知的破解示例,那麼任何人都可以幫助你更輕鬆;也**請**編輯您的Q以顯示您用於上傳的表單,正如我已經提到的那樣,因爲除非您_顯示它,否則根本無法猜測它可能會出現什麼問題! – 2010-08-01 17:31:05
亞歷克斯,再次thanx。我用python代碼和表單html解決了我的問題。 – 2010-08-02 00:26:37