Source Code for Module caldavclientlibrary.protocol.http.util

 1  ## 
 2  # Copyright (c) 2006-2016 Apple Inc. All rights reserved. 
 3  # 
 4  # Licensed under the Apache License, Version 2.0 (the "License"); 
 5  # you may not use this file except in compliance with the License. 
 6  # You may obtain a copy of the License at 
 7  # 
 8  # http://www.apache.org/licenses/LICENSE-2.0 
 9  # 
10  # Unless required by applicable law or agreed to in writing, software 
11  # distributed under the License is distributed on an "AS IS" BASIS, 
12  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
13  # See the License for the specific language governing permissions and 
14  # limitations under the License. 
15  ## 
16   
17   
18 -def parsetoken(text, delimiters=" \t"): 
19       
20      if not text: 
21          return "", "" 
22   
23      if text[0] == '"': 
24          return parsequoted(text, delimiters) 
25      else: 
26          for pos, c in enumerate(text): 
27              if c in delimiters: 
28                  token = text[0:pos] 
29                  break 
30          else: 
31              return text, "" 
32           
33          return token, lstripdelimiters(text[pos:], delimiters) 
34           
35 -def parsequoted(text, delimiters=" \t"): 
36       
37      assert(text) 
38      assert(text[0] == '"') 
39       
40      pos = 1 
41      while True: 
42          next_pos = text.find('"', pos) 
43          if next_pos == -1: 
44              return text[1:].replace("\\\\", "\\").replace("\\\"", "\""), "" 
45          if text[next_pos - 1] == '\\': 
46              pos = next_pos + 1 
47          else: 
48              return ( 
49                  text[1:next_pos].replace("\\\\", "\\").replace("\\\"", "\""), 
50                  lstripdelimiters(text[next_pos+1:], delimiters) 
51              ) 
52   
53 -def lstripdelimiters(text, delimiters): 
54      for pos, c in enumerate(text): 
55          if c not in delimiters: 
56              return text[pos:] 
57      else: 
58          return "" 
59   
60 -def parseStatusLine(status): 
61   
62      status = status.strip() 
63   
64      # Must have 'HTTP/1.1' version at start 
65      if status[0:9] != "HTTP/1.1 ": 
66          return 0 
67       
68      # Must have three digits followed by nothing or one space 
69      if not status[9:12].isdigit() or (len(status) > 12 and status[12] != " "): 
70          return 0 
71       
72      # Read in the status code 
73      return int(status[9:12]) 
74