1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
|
#!/usr/bin/python2.1
import os, string, re, BaseHTTPServer, posixpath, dircache
class EOFError(Exception):
pass
def netstring(s):
return '%s:%s' % (len(s), s)
def choose_message(path):
subs = filter(MailHTTPRequestHandler.int, os.listdir(path))
if not subs:
return os.path.join(path, '1')
else:
subs = map(int, subs)
subs.sort()
return os.path.join(path, str(subs[-1]+1))
class MailHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
int = re.compile("[0-9]*$").match
def authenticate(self):
if self.headers['x-secret'] != self.secret:
raise ValueError("user is not authenticated")
def send_response(self, code, message):
self.log_request(code)
self.wfile.write("%s %s %s\r\n" %
(self.protocol_version, code, message))
def copyfile(self, from_, to):
while 1:
s = from_.read(8192)
if not s:
break
to.write(s)
def send_response(self, code, message):
self.log_request(code)
message = self.responses.get(code, [''])[0]
self.wfile.write("%s %s %s\n" %
(self.protocol_version, code, message))
def do_GET(self):
self.authenticate()
if self.path[-1] == '/':
self.get_folder()
else:
self.get_message()
def do_HEAD(self):
self.authenticate()
path = self.translate_path()
try:
fp = open(path)
except (IOError, OSError):
self.send_error(404, "Not a valid message")
return
while 1:
line = fp.readline()
if len(line) <= 1:
break
self.wfile.write(line)
def do_MKCOL(self):
self.authenticate()
path = self.translate_path()
try:
os.makedirs(path)
except (IOError, OSError):
self.send_error(403, "Could not create folder")
self.send_response(201, "Created folder")
self.end_headers()
def do_PUT(self):
self.authenticate()
path = self.translate_path()
if self.path[-1] == '/':
try:
path = choose_message(path)
except (IOError, OSError), exc:
print 'choose', exc
self.send_error(404, "Not a valid message")
try:
fp = open(path, 'w')
except (IOError, OSError), exc:
print 'open', exc
self.send_error(404, "Not a valid message")
return
for (header, value) in self.headers.items():
if header == 'x-secret':
continue
fp.write("%s: %s\n" % (header, value))
fp.write("\n")
to_do = int(self.headers['content-length'])
while to_do>0:
buf = self.rfile.read(min(8192, to_do))
to_do = to_do - len(buf)
fp.write(buf)
fp.close()
self.send_response(201, "Created Message")
created = self.path
if self.path[-1] == '/':
created = os.path.join(created, os.path.basename(path))
self.send_header('Location', created)
self.end_headers()
def do_DELETE(self):
self.authenticate()
path = self.translate_path()
dir, file = os.path.split(path)
new_file = ','+file
try:
os.rename(path, os.path.join(dir, new_file))
except OSError:
self.send_error(403, "Can not delete message")
else:
self.send_response(206, "Deleted message")
self.end_headers()
def get_folder(self):
self.authenticate()
path = self.translate_path()
try:
subs = os.listdir(path)
except (IOError, OSError):
self.send_error(404, "Not a folder")
return
dircache.annotate(path, subs)
self.send_response(300, "Folder Contents")
self.send_header("Content-Type", "text/x-netstrs")
self.end_headers()
for s in subs:
if s[-1]=='/' or self.int(s):
self.wfile.write(netstring(s))
def get_message(self):
self.authenticate()
path = self.translate_path()
try:
fp = open(path)
except (IOError, OSError):
self.send_error(404, "Not a valid message")
return
self.send_response(200, "Raw Message")
self.copyfile(fp, self.wfile)
def translate_path(self):
self.authenticate()
path = posixpath.normpath(self.path)
words = string.split(path, '/')
words = filter(None, words)
path = os.getcwd()
for word in words:
drive, word = os.path.splitdrive(word)
head, word = os.path.split(word)
if word in (os.curdir, os.pardir): continue
path = os.path.join(path, word)
return path
def generate_secret():
import base64
random = open("/dev/random")
secret_file = os.path.join(os.environ['HOME'], '.secret')
fp = open(secret_file, 'w')
fp.close()
os.chmod(secret_file, 0700)
fp = open(secret_file, 'w')
secret = string.join(string.split(base64.encodestring(random.read(128))), '')
fp.write(secret)
fp.close()
random.close()
MailHTTPRequestHandler.secret = secret
def test():
import SocketServer
generate_secret()
BaseHTTPServer.test(HandlerClass=MailHTTPRequestHandler)
if __name__ == '__main__':
test()
|
