type(''):
port = repr(port)
sts = os.system('set -x; exec telnet ' + host + ' ' + port)
if sts:
print 'Exit status:', sts
# "Browse" a binary file, i.e. save it to a file
def browse_binary(selector, host, port):
f = open_savefile()
if not f:
return
x = SaveWithProgress(f)
get_alt_binary(selector, host, port, x.write, 8*1024)
x.close()
# "Browse" a sound file, i.e. play it or save it
def browse_sound(selector, host, port):
browse_binary(selector, host, port)
# Dictionary mapping types to browser functions
typebrowser = {'0': browse_textfile, '1': browse_menu, \
'4': browse_binary, '5': browse_binary, '6': browse_textfile, \
'7': browse_search, \
'8': browse_telnet, '9': browse_binary, 's': browse_sound}
# Class used to save lines, appending a newline to each line
class SaveLines:
def __init__(self, f):
self.f = f
def writeln(self, line):
self.f.write(line + '\n')
def close(self):
sts = self.f.close()
if sts:
print 'Exit status:', sts
# Class used to save data while showing progress
class SaveWithProgress:
def __init__(self, f):
self.f = f
def write(self, data):
sys.stdout.write('#')
sys.stdout.flush()
self.f.write(data)
def close(self):
print
sts = self.f.close()
if sts:
print 'Exit status:', sts
# Ask for and open a save file, or return None if not to save
def open_savefile():
try:
savefile = raw_input( \
'Save as file [CR == don\'t save; |pipeline or ~user/... OK]: ')
except EOFError:
print
return None
savefile = string.strip(savefile)
if not savefile:
return None
if savefile[0] == '|':
cmd = string.strip(savefile[1:])
try:
p = os.popen(cmd, 'w')
except IOError, msg:
print repr(cmd), ':', msg
return None
print 'Piping through', repr(cmd), '...'
return p
if savefile[0] == '~':
savefile = os.path.expanduser(savefile)
try:
f = open(savefile, 'w')
except IOError, msg:
print repr(savefile), ':', msg
return None
print 'Saving to', repr(savefile), '...'
return f
# Test program
def test():
if sys.argv[4:]:
print 'usage: gopher [ [selector] host [port] ]'
sys.exit(2)
elif sys.argv[3:]:
browser(sys.argv[1], sys.argv[2], sys.argv[3])
elif sys.argv[2:]:
try:
port = string.atoi(sys.argv[2])
selector = ''
host = sys.argv[1]
except string.atoi_error:
selector = sys.argv[1]
host = sys.argv[2]
port = ''
browser(selector, host, port)
elif sys.argv[1:]:
browser('', sys.argv[1])
else:
browser()
# Call the test program as a main program
test()