#!/usr/bin/env python
## Free Libraries Gopher Client (see version number in below tuple)
## Jul 2012
## License: Public Domain
## Very Beta
geo = (80, 24, "<-' go <- back ^ v scroll Free Libraries Gopher Client 0.2 (Public Domain)")
import curses
from os import popen
from os import system
from sys import argv
## changelog:
##
## 0.2:
## now targets both python 2 and 3 compatibility (print() / curses work in both)
## light support for url proxies (gopherurl://path/proxy?proxiedgopherurl)
## any movement of selection bar shows current or hovered url at bottom
## not new: using "back" autoscrolls to top... new: except for single step back
## (makes it a little less tedious to explore trees with minimal usage change)
## may have fixed cosmetic line width bug
## slightly better support of 40 columns
if geo[0] < 80:
geo = (geo[0], geo[1], "<-back ^v scr FLGC 0.2(Public Domain)")
if geo[0] < 40:
print("FLGC 0.2")
print("(Public Domain)")
print ()
print("This should probably")
print("be run with at least")
print("40 columns. hit enter")
print("to try it anyway.")
print()
try:
nul = input()
except:
pass
yescurl = int(popen("which curl | wc -l").readline())
if not yescurl:
print("This program will not work without curl.")
print()
print("Suggestion: sudo apt-get install curl (for Debian/Ubuntu/Trisquel/GNewSense)")
print(" sudo yum install curl (for Fedora/Freedora/etc)")
print("")
exit()
text = ""
url = ""
try:
url = argv[1]
except:
pass
if url == "":
#try:
# print("enter the name of a gopher site:", end=" ") ## python 3
#except SyntaxError:
# print("enter the name of a gopher site:"),
## that failed, so bash will do it:
system("echo -n \"enter the name of a gopher site: \"")
try:
url = raw_input().strip() ## python 2
except NameError:
url = input().strip()
def c(p):
global url
spaghetti = 0 ## this is related to the "back" function, sorry
if not "gopher://" in url.lower():
url = "gopher://" + url
if url.lower()[:9] != "gopher://":
url = "gopher://" + url
global text # for debugging output
text = url
history = []
yescaca = int(popen("which cacaview | wc -l").readline())
oneselected = 0
keeponescrolllocation = 0 ## save cursor position history (one deep)
## could do fully, but it really should reset
x = 0
while x not in [27, ord("x"), ord("q"), ord("Q"), ord("X")]:
yindex = 0
yib = 0
global geo
thistype = "1"
rurl = url
if rurl[:9].lower() == "gopher://":
rurl = rurl[9:]
try:
thistype = rurl.split("/")[1]
text = thistype
except:
pass
proxy = "gopher://127.0.0.1/1/cgi-bin/proxy?"
proxy = "" ## remove or set this if you want to use the proxy feature
f = list(popen("curl -s \"" + proxy + url + "\" 2> /dev/null").readlines())
history += [url]
if len(history) > 50:
history = history[-50:] ## conservative ; try 1000 or even remove
for lenf in range(3):
f = [""] + f
if len(f) < geo[1]:
while len(f) < geo[1]:
f += [""]
for lenf in range(geo[1]):
f += [""]
x = 0
while x not in [27, curses.KEY_ENTER, 10, ord("x"), ord("X"), ord("q"), ord("Q")]:
## because curses.KEY_ENTER wasn't being trapped; LF was, go figure
if x == curses.KEY_PPAGE:
oneselected = 1
yindex -= (geo[1] - 1)
if yindex < 0:
yindex = 0
if x == curses.KEY_NPAGE:
oneselected = 1
yindex += geo[1] - 1
if yindex > len(f) - geo[1]:
yindex = len(f) - geo[1]
if x == curses.KEY_UP:
oneselected = 1
yindex -= 1
if yindex < 0:
yindex = 0
if x == curses.KEY_DOWN:
oneselected = 1
yindex += 1
if yindex > len(f) - geo[1]:
yindex = len(f) - geo[1]
if x == curses.KEY_HOME:
oneselected = 1
yindex = 0
if x == curses.KEY_LEFT:
if len(history) > 1:
try: ## lazy
history = history[:-1]
newurl = history[len(history) - 1]
history = history[:-1]
url = newurl
text = newurl
except:
pass
else:
x = 126
if x == curses.KEY_END:
oneselected = 1
yindex = len(f) - geo[1] -1
if spaghetti: ## if page is from url history
yindex = keeponescrolllocation
keeponescrolllocation = 0 ## otherwise it keeps using it
if yindex != yib or yib == 0:
hoverurl = ""
try:
hoverurl = rurl ## first try url that's being viewed...
if thistype == "1" and f[yindex + 3][0] in "0I1":
hoverurl = f[yindex + 3].split("\t")[2] + ":" + f[yindex + 3].split("\t")[3].rstrip() + "/" + f[yindex + 3][0] + f[yindex + 3].split("\t")[1]
## ...then if possible / applicable, url that's highlighted by user
except:
pass
p.clear()
for pp in range(0, geo[1] - 1):
thisline = f[pp + yindex].rstrip()
if thistype == "1" and len(thisline):
hint = ""
if thisline[0] == "0":
hint = "(TEXT) "
elif thisline[0] == "1":
hint = " (DIR) "
elif thisline[0] == "i":
hint = ""
elif thisline[0] == "I":
hint = " (IMG) "
if thisline[0] in "01iI":
thisline = hint + thisline.split("\t")[0][1:]
ntab = " " * 4 ## this might fix the line width issue
if pp == 3:
bar = ntab.join(str(thisline + (" " * geo[0])).split("\t"))
## for whatever reason, this doesn't exactly
p.addstr(pp, 0, bar[:geo[0]], curses.A_REVERSE)
p.addstr(pp + 1, 0, " " * geo[0])
else:
p.addstr(pp, 0, ntab.join(thisline.split("\t"))[:geo[0]])
yib = yindex
p.refresh()
p.addstr(geo[1] - 1, 0, " " * (geo[0] - 1), curses.A_REVERSE)
if hoverurl and oneselected: ### and int(geo[0]) > 79: ## 79 regardless of screen dim
hoverurl = hoverurl[:geo[0] - 2]
urlstatus = hoverurl + " " * (geo[0] - 2 - len(hoverurl))
p.addstr(geo[1] - 1, 0, " " + urlstatus, curses.A_REVERSE)
else:
p.addstr(geo[1] - 1, 0, " " + geo[2], curses.A_REVERSE)
p.addstr(geo[1] - 1, geo[0] - 1, "", curses.A_REVERSE)
p.refresh()
spaghetti = 0
if x != curses.KEY_LEFT:
x = p.getch()
else:
spaghetti = 1 ## make an exception for the back function
x = 10
if x == 10 or x == curses.KEY_ENTER:
oneselected = 0 ## fix this line if you want status ready on new pages
if spaghetti == 0:
rstr = f[yindex + 3] ## the contents of the selected line
keeponescrolllocation = yindex
typifany = ""
## typifany: derived from link you're hovering over
## thistype: type / page you're already viewing
if len(rstr) and thistype == "1":
## if thistype isn't 1, ^ parsed line doesn't count
## (i.e. because you're viewing type 0)
typifany = rstr[0] ## get gophertype, (or " ", or "")
if typifany == "0":
if len(rstr.split("\t")) > 3:
typs = "/" + typifany
desc = rstr.split("\t")[0][1:]
rsel = rstr.split("\t")[1]
serv = rstr.split("\t")[2]
## port field is often last, so remove \r\n
port = rstr.split("\t")[3].rstrip()
newurl = "gopher://" + serv + ":" + port + typs + rsel
url = newurl
elif typifany == "1":
if len(rstr.split("\t")) > 3:
typs = "/" + typifany
desc = rstr.split("\t")[0][1:]
rsel = rstr.split("\t")[1]
serv = rstr.split("\t")[2]
## port field is often last, so remove \r\n
port = rstr.split("\t")[3].rstrip()
newurl = "gopher://" + serv + ":" + port + typs + rsel
url = newurl
elif typifany == "I":
if len(rstr.split("\t")) > 3:
typs = "/" + typifany
desc = rstr.split("\t")[0][1:]
rsel = rstr.split("\t")[1]
serv = rstr.split("\t")[2]
## port field is often last, so remove \r\n
port = rstr.split("\t")[3].rstrip()
newurl = "gopher://" + serv + ":" + port + typs + rsel
system("curl -s \"" + newurl + "\" > /tmp/cacav 2> /dev/null ; cacaview /tmp/cacav 2> /dev/null")
else:
x = 126 ## pretend enter wasn't pressed
else:
x = 126 ## no plans to map this
curses.wrapper(c)