#! /usr/bin/env python
"""GUI interface to webchecker.
This works as a Grail applet too! E.g.
Checkpoints are not (yet??? ever???) supported.
User interface:
Enter a root to check in the text entry box. To enter more than one root,
enter them one at a time and press for each one.
Command buttons Start, Stop and "Check one" govern the checking process in
the obvious way. Start and "Check one" also enter the root from the text
entry box if one is present. There's also a check box (enabled by default)
to decide whether actually to follow external links (since this can slow
the checking down considerably). Finally there's a Quit button.
A series of checkbuttons determines whether the corresponding output panel
is shown. List panels are also automatically shown or hidden when their
status changes between empty to non-empty. There are six panels:
Log -- raw output from the checker (-v, -q affect this)
To check -- links discovered but not yet checked
Checked -- links that have been checked
Bad links -- links that failed upon checking
Errors -- pages containing at least one bad link
Details -- details about one URL; double click on a URL in any of
the above list panels (not in Log) will show details
for that URL
Use your window manager's Close command to quit.
Command line options:
-m bytes -- skip HTML pages larger than this size (default %(MAXPAGE)d)
-q -- quiet operation (also suppresses external links report)
-v -- verbose operation; repeating -v will increase verbosity
-t root -- specify root dir which should be treated as internal (can repeat)
-a -- don't check name anchors
Command line arguments:
rooturl -- URL to start checking
(default %(DEFROOT)s)
XXX The command line options (-m, -q, -v) should be GUI accessible.
XXX The roots should be visible as a list (?).
XXX The multipanel user interface is clumsy.
"""
# ' Emacs bait
import sys
import getopt
from Tkinter import *
import tktools
import webchecker
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], 't:m:qva')
except getopt.error, msg:
sys.stdout = sys.stderr
print msg
print __doc__%vars(webchecker)
sys.exit(2)
webchecker.verbose = webchecker.VERBOSE
webchecker.nonames = webchecker.NONAMES
webchecker.maxpage = webchecker.MAXPAGE
extra_roots = []
for o, a in opts:
if o == '-m':
webchecker.maxpage = int(a)
if o == '-q':
webchecker.verbose = 0
if o == '-v':
webchecker.verbose = webchecker.verbose + 1
if o == '-t':
extra_roots.append(a)
if o == '-a':
webchecker.nonames = not webchecker.nonames
root = Tk(className='Webchecker')
root.protocol("WM_DELETE_WINDOW", root.quit)
c = CheckerWindow(root)
c.setflags(verbose=webchecker.verbose, maxpage=webchecker.maxpage,
nonames=webchecker.nonames)
if args:
for arg in args[:-1]:
c.addroot(arg)
c.suggestroot(args[-1])
# Usually conditioned on whether external links
# will be checked, but since that's not a command
# line option, just toss them in.
for url_root in extra_roots:
# Make sure it's terminated by a slash,
# so that addroot doesn't discard the last
# directory component.
if url_root[-1] != "/":
url_root = url_root + "/"
c.addroot(url_root, add_to_do = 0)
root.mainloop()
class CheckerWindow(webchecker.Checker):
def __init__(self, parent, root=webchecker.DEFROOT):
self.__parent = parent
self.__topcontrols = Frame(parent)
self.__topcontrols.pack(side=TOP, fill=X)
self.__label = Label(self.__topcontrols, text="Root URL:")
self.__label.pack(side=LEFT)
self.__rootentry = Entry(self.__topcontrols, width=60)
self.__rootentry.pack(side=LEFT)
self.__rootentry.bind('', self.enterroot)
self.__rootentry.focus_set()
self.__controls = Frame(parent)
self.__controls.pack(side=TOP, fill=X)
self.__running = 0
self.__start = Button(self.__controls, text="Run", command=self.start)
self.__start.pack(side=LEFT)
self.__stop = Button(self.__controls, text="Stop", command=self.stop,
state=DISABLED)
self.__stop.pack(side=LEFT)
self.__step = Button(self.__controls, text="Check one",
command=self.step)
self.__step.pack(side=LEFT)
self.__cv = BooleanVar(parent)
self.__cv.set(self.checkext)
self.__checkext = Checkbutton(self.__controls, variable=self.__cv,
command=self.update_checkext,
text="Check nonlocal links",)
self.__checkext.pack(side=LEFT)
self.__reset = Button(self.__controls, text="Start over", command=self.reset)
self.__reset.pack(side=LEFT)
if __name__ == '__main__': # No Quit button under Grail!
self.__quit = Button(self.__controls, text="Quit",
command=self.__parent.quit)
self.__quit.pack(side=RIGHT)
self.__status = Label(parent, text="Status: initial", anchor=W)
self.__status.pack(side=TOP, fill=X)
self.__checking = Label(parent, text="Idle", anchor=W)
self.__checking.pack(side=TOP, fill=X)
self.__mp = mp = MultiPanel(parent)
sys.stdout = self.__log = LogPanel(mp, "Log")
self.__todo = ListPanel(mp, "To check", self, self.showinfo)
self.__done = ListPanel(mp, "Checked", self, self.showinfo)
self.__bad = ListPanel(mp, "Bad links", self, self.showinfo)
self.__errors = ListPanel(mp, "Pages w/ bad links", self, self.showinfo)
self.__details = LogPanel(mp, "Details")
self.root_seed = None
webchecker.Checker.__init__(self)
if root:
root = str(root).strip()
if root:
self.suggestroot(root)
self.newstatus()
def reset(self):
webchecker.Checker.reset(self)
for p in self.__todo, self.__done, self.__bad, self.__errors:
p.clear()
if self.root_seed:
self.suggestroot(self.root_seed)
def suggestroot(self, root):
self.__rootentry.delete(0, END)
self.__rootentry.insert(END, root)
self.__rootentry.select_range(0, END)
self.root_seed = root
def enterroot(self, event=None):
root = self.__rootentry.get()
root = root.strip()
if root:
self.__checking.config(text="Adding root "+root)
self.__checking.update_idletasks()
self.addroot(root)
self.__checking.config(text="Idle")
try:
i = self.__todo.items.index(root)
except (ValueError, IndexError):
pass
else:
self.__todo.list.select_clear(0, END)
self.__todo.list.select_set(i)
self.__todo.list.yview(i)
self.__rootentry.delete(0, END)
def start(self):
self.__start.config(state=DISABLED, relief=SUNKEN)
self.__stop.config(state=NORMAL)
self.__step.config(state=DISABLED)
self.enterroot()
self.__running = 1
self.go()
def stop(self):
self.__stop.config(state=DISABLED, relief=SUNKEN)
self.__running = 0
def step(self):
self.__start.config(state=DISABLED)
self.__step.config(state=DISABLED, relief=SUNKEN)
self.enterroot()
self.__running = 0
self.dosomething()
def go(self):
if self.__running:
self.__parent.after_idle(self.dosomething)
else:
self.__checking.config(text="Idle")
self.__start.config(state=NORMAL, relief=RAISED)
self.__stop.config(state=DISABLED, relief=RAISED)
self.__step.config(state=NORMAL, relief=RAISED)
__busy = 0
def dosomething(self):
if self.__busy: return
self.__busy = 1
if self.todo:
l = self.__todo.selectedindices()
if l:
i = l[0]
else:
i = 0
self.__todo.list.select_set(i)
self.__todo.list.yview(i)
url = self.__todo.items[i]
self.__checking.config(text="Checking "+self.format_url(url))
self.__parent.update()
self.dopage(url)
else:
self.stop()
self.__busy = 0
self.go()
def showinfo(self, url):
d = self.__details
d.clear()
d.put("URL: %s\n" % self.format_url(url))
if self.bad.has_key(url):
d.put("Error: %s\n" % str(self.bad[url]))
if url in self.roots:
d.put("Note: This is a root URL\n")
if self.done.has_key(url):
d.put("Status: checked\n")
o = self.done[url]
elif self.todo.has_key(url):
d.put("Status: to check\n")
o = self.todo[url]
else:
d.put("Status: unknown (!)\n")
o = []
if (not url[1]) and self.errors.has_key(url[0]):
d.put("Bad links from this page:\n")
for triple in self.errors[url[0]]:
link, rawlink, msg = triple
d.put(" HREF %s" % self.format_url(link))
if self.format_url(link) != rawlink: d.put(" (%s)" %rawlink)
d.put("\n")
d.put(" error %s\n" % str(msg))
self.__mp.showpanel("Details")
for source, rawlink in o:
d.put("Origin: %s" % source)
if rawlink != self.format_url(url):
d.put(" (%s)" % rawlink)
d.put("\n")
d.text.yview("1.0")
def setbad(self, url, msg):
webchecker.Checker.setbad(self, url, msg)
self.__bad.insert(url)
self.newstatus()
def setgood(self, url):
webchecker.Checker.setgood(self, url)
self.__bad.remove(url)
self.newstatus()
def newlink(self, url, origin):
webchecker.Checker.newlink(self, url, origin)
if self.done.has_key(url):
self.__done.insert(url)
elif self.todo.has_key(url):
self.__todo.insert(url)
self.newstatus()
def markdone(self, url):
webchecker.Checker.markdone(self, url)
self.__done.insert(url)
self.__todo.remove(url)
self.newstatus()
def seterror(self, url, triple):
webchecker.Checker.seterror(self, url, triple)
self.__errors.insert((url, ''))
self.newstatus()
def newstatus(self):
self.__status.config(text="Status: "+self.status())
self.__parent.update()
def update_checkext(self):
self.checkext = self.__cv.get()
class ListPanel:
def __init__(self, mp, name, checker, showinfo=None):
self.mp = mp
self.name = name
self.showinfo = showinfo
self.checker = checker
self.panel = mp.addpanel(name)
self.list, self.frame = tktools.make_list_box(
self.panel, width=60, height=5)
self.list.config(exportselection=0)
if showinfo:
self.list.bind('', self.doubleclick)
self.items = []
def clear(self):
self.items = []
self.list.delete(0, END)
self.mp.hidepanel(self.name)
def doubleclick(self, event):
l = self.selectedindices()
if l:
self.showinfo(self.items[l[0]])
def selectedindices(self):
l = self.list.curselection()
if not l: return []
return map(int, l)
def insert(self, url):
if url not in self.items:
if not self.items:
self.mp.showpanel(self.name)
# (I tried sorting alphabetically, but the display is too jumpy)
i = len(self.items)
self.list.insert(i, self.checker.format_url(url))
self.list.yview(i)
self.items.insert(i, url)
def remove(self, url):
try:
i = self.items.index(url)
except (ValueError, IndexError):
pass
else:
was_selected = i in self.selectedindices()
self.list.delete(i)
del self.items[i]
if not self.items:
self.mp.hidepanel(self.name)
elif was_selected:
if i >= len(self.items):
i = len(self.items) - 1
self.list.select_set(i)
class LogPanel:
def __init__(self, mp, name):
self.mp = mp
self.name = name
self.panel = mp.addpanel(name)
self.text, self.frame = tktools.make_text_box(self.panel, height=10)
self.text.config(wrap=NONE)
def clear(self):
self.text.delete("1.0", END)
self.text.yview("1.0")
def put(self, s):
self.text.insert(END, s)
if '\n' in s:
self.text.yview(END)
def write(self, s):
self.text.insert(END, s)
if '\n' in s:
self.text.yview(END)
self.panel.update()
class MultiPanel:
def __init__(self, parent):
self.parent = parent
self.frame = Frame(self.parent)
self.frame.pack(expand=1, fill=BOTH)
self.topframe = Frame(self.frame, borderwidth=2, relief=RAISED)
self.topframe.pack(fill=X)
self.botframe = Frame(self.frame)
self.botframe.pack(expand=1, fill=BOTH)
self.panelnames = []
self.panels = {}
def addpanel(self, name, on=0):
v = StringVar(self.parent)
if on:
v.set(name)
else:
v.set("")
check = Checkbutton(self.topframe, text=name,
offvalue="", onvalue=name, variable=v,
command=self.checkpanel)
check.pack(side=LEFT)
panel = Frame(self.botframe)
label = Label(panel, text=name, borderwidth=2, relief=RAISED, anchor=W)
label.pack(side=TOP, fill=X)
t = v, check, panel
self.panelnames.append(name)
self.panels[name] = t
if on:
panel.pack(expand=1, fill=BOTH)
return panel
def showpanel(self, name):
v, check, panel = self.panels[name]
v.set(name)
panel.pack(expand=1, fill=BOTH)
def hidepanel(self, name):
v, check, panel = self.panels[name]
v.set("")
panel.pack_forget()
def checkpanel(self):
for name in self.panelnames:
v, check, panel = self.panels[name]
panel.pack_forget()
for name in self.panelnames:
v, check, panel = self.panels[name]
if v.get():
panel.pack(expand=1, fill=BOTH)
if __name__ == '__main__':
main()