summaryrefslogtreecommitdiffstats
path: root/Lib/gopherlib.py
diff options
context:
space:
mode:
Diffstat (limited to 'Lib/gopherlib.py')
-rw-r--r--Lib/gopherlib.py286
1 files changed, 143 insertions, 143 deletions
diff --git a/Lib/gopherlib.py b/Lib/gopherlib.py
index 033e579..d805f15 100644
--- a/Lib/gopherlib.py
+++ b/Lib/gopherlib.py
@@ -1,4 +1,4 @@
-# Gopher protocol client interface
+"""Gopher protocol client interface."""
import string
@@ -29,180 +29,180 @@ A_IMAGE = 'I'
A_WHOIS = 'w'
A_QUERY = 'q'
A_GIF = 'g'
-A_HTML = 'h' # HTML file
-A_WWW = 'w' # WWW address
+A_HTML = 'h' # HTML file
+A_WWW = 'w' # WWW address
A_PLUS_IMAGE = ':'
A_PLUS_MOVIE = ';'
A_PLUS_SOUND = '<'
-# Function mapping all file types to strings; unknown types become TYPE='x'
_names = dir()
_type_to_name_map = {}
def type_to_name(gtype):
- global _type_to_name_map
- if _type_to_name_map=={}:
- for name in _names:
- if name[:2] == 'A_':
- _type_to_name_map[eval(name)] = name[2:]
- if _type_to_name_map.has_key(gtype):
- return _type_to_name_map[gtype]
- return 'TYPE=' + `gtype`
+ """Map all file types to strings; unknown types become TYPE='x'."""
+ global _type_to_name_map
+ if _type_to_name_map=={}:
+ for name in _names:
+ if name[:2] == 'A_':
+ _type_to_name_map[eval(name)] = name[2:]
+ if _type_to_name_map.has_key(gtype):
+ return _type_to_name_map[gtype]
+ return 'TYPE=' + `gtype`
# Names for characters and strings
CRLF = '\r\n'
TAB = '\t'
-# Send a selector to a given host and port, return a file with the reply
def send_selector(selector, host, port = 0):
- import socket
- import string
- if not port:
- i = string.find(host, ':')
- if i >= 0:
- host, port = host[:i], string.atoi(host[i+1:])
- if not port:
- port = DEF_PORT
- elif type(port) == type(''):
- port = string.atoi(port)
- s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
- s.connect(host, port)
- s.send(selector + CRLF)
- s.shutdown(1)
- return s.makefile('rb')
-
-# Send a selector and a query string
+ """Send a selector to a given host and port, return a file with the reply."""
+ import socket
+ import string
+ if not port:
+ i = string.find(host, ':')
+ if i >= 0:
+ host, port = host[:i], string.atoi(host[i+1:])
+ if not port:
+ port = DEF_PORT
+ elif type(port) == type(''):
+ port = string.atoi(port)
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.connect(host, port)
+ s.send(selector + CRLF)
+ s.shutdown(1)
+ return s.makefile('rb')
+
def send_query(selector, query, host, port = 0):
- return send_selector(selector + '\t' + query, host, port)
+ """Send a selector and a query string."""
+ return send_selector(selector + '\t' + query, host, port)
-# Takes a path as returned by urlparse and returns the appropriate selector
def path_to_selector(path):
- if path=="/":
- return "/"
- else:
- return path[2:] # Cuts initial slash and data type identifier
+ """Takes a path as returned by urlparse and returns the appropriate selector."""
+ if path=="/":
+ return "/"
+ else:
+ return path[2:] # Cuts initial slash and data type identifier
-# Takes a path as returned by urlparse and maps it to a string
-# See section 3.4 of RFC 1738 for details
def path_to_datatype_name(path):
- if path=="/":
- # No way to tell, although "INDEX" is likely
- return "TYPE='unknown'"
- else:
- return type_to_name(path[1])
+ """Takes a path as returned by urlparse and maps it to a string.
+ See section 3.4 of RFC 1738 for details."""
+ if path=="/":
+ # No way to tell, although "INDEX" is likely
+ return "TYPE='unknown'"
+ else:
+ return type_to_name(path[1])
# The following functions interpret the data returned by the gopher
# server according to the expected type, e.g. textfile or directory
-# Get a directory in the form of a list of entries
def get_directory(f):
- import string
- list = []
- while 1:
- line = f.readline()
- if not line:
- print '(Unexpected EOF from server)'
- break
- if line[-2:] == CRLF:
- line = line[:-2]
- elif line[-1:] in CRLF:
- line = line[:-1]
- if line == '.':
- break
- if not line:
- print '(Empty line from server)'
- continue
- gtype = line[0]
- parts = string.splitfields(line[1:], TAB)
- if len(parts) < 4:
- print '(Bad line from server:', `line`, ')'
- continue
- if len(parts) > 4:
- if parts[4:] != ['+']:
- print '(Extra info from server:',
- print parts[4:], ')'
- else:
- parts.append('')
- parts.insert(0, gtype)
- list.append(parts)
- return list
-
-# Get a text file as a list of lines, with trailing CRLF stripped
+ """Get a directory in the form of a list of entries."""
+ import string
+ list = []
+ while 1:
+ line = f.readline()
+ if not line:
+ print '(Unexpected EOF from server)'
+ break
+ if line[-2:] == CRLF:
+ line = line[:-2]
+ elif line[-1:] in CRLF:
+ line = line[:-1]
+ if line == '.':
+ break
+ if not line:
+ print '(Empty line from server)'
+ continue
+ gtype = line[0]
+ parts = string.splitfields(line[1:], TAB)
+ if len(parts) < 4:
+ print '(Bad line from server:', `line`, ')'
+ continue
+ if len(parts) > 4:
+ if parts[4:] != ['+']:
+ print '(Extra info from server:',
+ print parts[4:], ')'
+ else:
+ parts.append('')
+ parts.insert(0, gtype)
+ list.append(parts)
+ return list
+
def get_textfile(f):
- list = []
- get_alt_textfile(f, list.append)
- return list
+ """Get a text file as a list of lines, with trailing CRLF stripped."""
+ list = []
+ get_alt_textfile(f, list.append)
+ return list
-# Get a text file and pass each line to a function, with trailing CRLF stripped
def get_alt_textfile(f, func):
- while 1:
- line = f.readline()
- if not line:
- print '(Unexpected EOF from server)'
- break
- if line[-2:] == CRLF:
- line = line[:-2]
- elif line[-1:] in CRLF:
- line = line[:-1]
- if line == '.':
- break
- if line[:2] == '..':
- line = line[1:]
- func(line)
-
-# Get a binary file as one solid data block
+ """Get a text file and pass each line to a function, with trailing CRLF stripped."""
+ while 1:
+ line = f.readline()
+ if not line:
+ print '(Unexpected EOF from server)'
+ break
+ if line[-2:] == CRLF:
+ line = line[:-2]
+ elif line[-1:] in CRLF:
+ line = line[:-1]
+ if line == '.':
+ break
+ if line[:2] == '..':
+ line = line[1:]
+ func(line)
+
def get_binary(f):
- data = f.read()
- return data
+ """Get a binary file as one solid data block."""
+ data = f.read()
+ return data
-# Get a binary file and pass each block to a function
def get_alt_binary(f, func, blocksize):
- while 1:
- data = f.read(blocksize)
- if not data:
- break
- func(data)
+ """Get a binary file and pass each block to a function."""
+ while 1:
+ data = f.read(blocksize)
+ if not data:
+ break
+ func(data)
-# Trivial test program
def test():
- import sys
- import getopt
- opts, args = getopt.getopt(sys.argv[1:], '')
- selector = DEF_SELECTOR
- type = selector[0]
- host = DEF_HOST
- port = DEF_PORT
- if args:
- host = args[0]
- args = args[1:]
- if args:
- type = args[0]
- args = args[1:]
- if len(type) > 1:
- type, selector = type[0], type
- else:
- selector = ''
- if args:
- selector = args[0]
- args = args[1:]
- query = ''
- if args:
- query = args[0]
- args = args[1:]
- if type == A_INDEX:
- f = send_query(selector, query, host)
- else:
- f = send_selector(selector, host)
- if type == A_TEXT:
- list = get_textfile(f)
- for item in list: print item
- elif type in (A_MENU, A_INDEX):
- list = get_directory(f)
- for item in list: print item
- else:
- data = get_binary(f)
- print 'binary data:', len(data), 'bytes:', `data[:100]`[:40]
+ """Trivial test program."""
+ import sys
+ import getopt
+ opts, args = getopt.getopt(sys.argv[1:], '')
+ selector = DEF_SELECTOR
+ type = selector[0]
+ host = DEF_HOST
+ port = DEF_PORT
+ if args:
+ host = args[0]
+ args = args[1:]
+ if args:
+ type = args[0]
+ args = args[1:]
+ if len(type) > 1:
+ type, selector = type[0], type
+ else:
+ selector = ''
+ if args:
+ selector = args[0]
+ args = args[1:]
+ query = ''
+ if args:
+ query = args[0]
+ args = args[1:]
+ if type == A_INDEX:
+ f = send_query(selector, query, host)
+ else:
+ f = send_selector(selector, host)
+ if type == A_TEXT:
+ list = get_textfile(f)
+ for item in list: print item
+ elif type in (A_MENU, A_INDEX):
+ list = get_directory(f)
+ for item in list: print item
+ else:
+ data = get_binary(f)
+ print 'binary data:', len(data), 'bytes:', `data[:100]`[:40]
# Run the test when run as script
if __name__ == '__main__':
- test()
+ test()
generated by cgit v0.12 at 2024-11-19 04:26:28 (GMT)