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			462 lines
		
	
	
	
		
			15 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable file
		
	
	
	
	
			
		
		
	
	
			462 lines
		
	
	
	
		
			15 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable file
		
	
	
	
	
#! /usr/bin/env python
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"""GUI interface to webchecker.
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This works as a Grail applet too!  E.g.
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  <APPLET CODE=wcgui.py NAME=CheckerWindow></APPLET>
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Checkpoints are not (yet???  ever???) supported.
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User interface:
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Enter a root to check in the text entry box.  To enter more than one root,
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enter them one at a time and press <Return> for each one.
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Command buttons Start, Stop and "Check one" govern the checking process in
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the obvious way.  Start and "Check one" also enter the root from the text
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entry box if one is present.  There's also a check box (enabled by default)
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to decide whether actually to follow external links (since this can slow
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the checking down considerably).  Finally there's a Quit button.
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A series of checkbuttons determines whether the corresponding output panel
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is shown.  List panels are also automatically shown or hidden when their
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status changes between empty to non-empty.  There are six panels:
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Log        -- raw output from the checker (-v, -q affect this)
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To check   -- links discovered but not yet checked
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Checked    -- links that have been checked
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Bad links  -- links that failed upon checking
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Errors     -- pages containing at least one bad link
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Details    -- details about one URL; double click on a URL in any of
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              the above list panels (not in Log) will show details
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              for that URL
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Use your window manager's Close command to quit.
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Command line options:
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-m bytes  -- skip HTML pages larger than this size (default %(MAXPAGE)d)
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-q        -- quiet operation (also suppresses external links report)
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-v        -- verbose operation; repeating -v will increase verbosity
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-t root   -- specify root dir which should be treated as internal (can repeat)
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-a        -- don't check name anchors
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Command line arguments:
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rooturl   -- URL to start checking
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             (default %(DEFROOT)s)
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XXX The command line options (-m, -q, -v) should be GUI accessible.
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XXX The roots should be visible as a list (?).
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XXX The multipanel user interface is clumsy.
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"""
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# ' Emacs bait
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import sys
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import getopt
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from Tkinter import *
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import tktools
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import webchecker
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# Override some for a weaker platform
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if sys.platform == 'mac':
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    webchecker.DEFROOT = "http://grail.cnri.reston.va.us/"
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    webchecker.MAXPAGE = 50000
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    webchecker.verbose = 4
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def main():
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    try:
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        opts, args = getopt.getopt(sys.argv[1:], 't:m:qva')
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    except getopt.error as msg:
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        sys.stdout = sys.stderr
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        print(msg)
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        print(__doc__%vars(webchecker))
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        sys.exit(2)
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    webchecker.verbose = webchecker.VERBOSE
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    webchecker.nonames = webchecker.NONAMES
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    webchecker.maxpage = webchecker.MAXPAGE
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    extra_roots = []
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    for o, a in opts:
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        if o == '-m':
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            webchecker.maxpage = int(a)
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        if o == '-q':
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            webchecker.verbose = 0
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        if o == '-v':
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            webchecker.verbose = webchecker.verbose + 1
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        if o == '-t':
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            extra_roots.append(a)
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        if o == '-a':
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            webchecker.nonames = not webchecker.nonames
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    root = Tk(className='Webchecker')
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    root.protocol("WM_DELETE_WINDOW", root.quit)
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    c = CheckerWindow(root)
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    c.setflags(verbose=webchecker.verbose, maxpage=webchecker.maxpage,
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               nonames=webchecker.nonames)
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    if args:
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        for arg in args[:-1]:
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            c.addroot(arg)
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        c.suggestroot(args[-1])
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    # Usually conditioned on whether external links
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    # will be checked, but since that's not a command
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    # line option, just toss them in.
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    for url_root in extra_roots:
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        # Make sure it's terminated by a slash,
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        # so that addroot doesn't discard the last
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        # directory component.
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        if url_root[-1] != "/":
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            url_root = url_root + "/"
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        c.addroot(url_root, add_to_do = 0)
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    root.mainloop()
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class CheckerWindow(webchecker.Checker):
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    def __init__(self, parent, root=webchecker.DEFROOT):
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        self.__parent = parent
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        self.__topcontrols = Frame(parent)
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        self.__topcontrols.pack(side=TOP, fill=X)
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        self.__label = Label(self.__topcontrols, text="Root URL:")
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        self.__label.pack(side=LEFT)
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        self.__rootentry = Entry(self.__topcontrols, width=60)
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        self.__rootentry.pack(side=LEFT)
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        self.__rootentry.bind('<Return>', self.enterroot)
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        self.__rootentry.focus_set()
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        self.__controls = Frame(parent)
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        self.__controls.pack(side=TOP, fill=X)
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        self.__running = 0
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        self.__start = Button(self.__controls, text="Run", command=self.start)
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        self.__start.pack(side=LEFT)
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        self.__stop = Button(self.__controls, text="Stop", command=self.stop,
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                             state=DISABLED)
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        self.__stop.pack(side=LEFT)
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        self.__step = Button(self.__controls, text="Check one",
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                             command=self.step)
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        self.__step.pack(side=LEFT)
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        self.__cv = BooleanVar(parent)
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        self.__cv.set(self.checkext)
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        self.__checkext = Checkbutton(self.__controls, variable=self.__cv,
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                                      command=self.update_checkext,
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                                      text="Check nonlocal links",)
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        self.__checkext.pack(side=LEFT)
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        self.__reset = Button(self.__controls, text="Start over", command=self.reset)
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        self.__reset.pack(side=LEFT)
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        if __name__ == '__main__': # No Quit button under Grail!
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            self.__quit = Button(self.__controls, text="Quit",
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                                 command=self.__parent.quit)
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            self.__quit.pack(side=RIGHT)
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        self.__status = Label(parent, text="Status: initial", anchor=W)
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        self.__status.pack(side=TOP, fill=X)
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        self.__checking = Label(parent, text="Idle", anchor=W)
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        self.__checking.pack(side=TOP, fill=X)
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        self.__mp = mp = MultiPanel(parent)
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        sys.stdout = self.__log = LogPanel(mp, "Log")
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        self.__todo = ListPanel(mp, "To check", self, self.showinfo)
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        self.__done = ListPanel(mp, "Checked", self, self.showinfo)
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        self.__bad = ListPanel(mp, "Bad links", self, self.showinfo)
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        self.__errors = ListPanel(mp, "Pages w/ bad links", self, self.showinfo)
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        self.__details = LogPanel(mp, "Details")
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        self.root_seed = None
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        webchecker.Checker.__init__(self)
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        if root:
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            root = str(root).strip()
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            if root:
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                self.suggestroot(root)
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        self.newstatus()
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    def reset(self):
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        webchecker.Checker.reset(self)
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        for p in self.__todo, self.__done, self.__bad, self.__errors:
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            p.clear()
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        if self.root_seed:
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            self.suggestroot(self.root_seed)
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    def suggestroot(self, root):
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        self.__rootentry.delete(0, END)
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        self.__rootentry.insert(END, root)
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        self.__rootentry.select_range(0, END)
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        self.root_seed = root
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    def enterroot(self, event=None):
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        root = self.__rootentry.get()
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        root = root.strip()
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        if root:
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            self.__checking.config(text="Adding root "+root)
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            self.__checking.update_idletasks()
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            self.addroot(root)
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            self.__checking.config(text="Idle")
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            try:
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                i = self.__todo.items.index(root)
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            except (ValueError, IndexError):
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                pass
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            else:
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                self.__todo.list.select_clear(0, END)
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                self.__todo.list.select_set(i)
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                self.__todo.list.yview(i)
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        self.__rootentry.delete(0, END)
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    def start(self):
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        self.__start.config(state=DISABLED, relief=SUNKEN)
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        self.__stop.config(state=NORMAL)
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        self.__step.config(state=DISABLED)
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        self.enterroot()
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        self.__running = 1
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        self.go()
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    def stop(self):
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        self.__stop.config(state=DISABLED, relief=SUNKEN)
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        self.__running = 0
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    def step(self):
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        self.__start.config(state=DISABLED)
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        self.__step.config(state=DISABLED, relief=SUNKEN)
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        self.enterroot()
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        self.__running = 0
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        self.dosomething()
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    def go(self):
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        if self.__running:
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            self.__parent.after_idle(self.dosomething)
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        else:
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            self.__checking.config(text="Idle")
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            self.__start.config(state=NORMAL, relief=RAISED)
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            self.__stop.config(state=DISABLED, relief=RAISED)
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            self.__step.config(state=NORMAL, relief=RAISED)
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    __busy = 0
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    def dosomething(self):
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        if self.__busy: return
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        self.__busy = 1
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        if self.todo:
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            l = self.__todo.selectedindices()
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            if l:
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                i = l[0]
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            else:
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                i = 0
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                self.__todo.list.select_set(i)
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            self.__todo.list.yview(i)
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            url = self.__todo.items[i]
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            self.__checking.config(text="Checking "+self.format_url(url))
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            self.__parent.update()
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            self.dopage(url)
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        else:
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            self.stop()
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        self.__busy = 0
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        self.go()
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    def showinfo(self, url):
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        d = self.__details
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        d.clear()
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        d.put("URL:    %s\n" % self.format_url(url))
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        if url in self.bad:
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            d.put("Error:  %s\n" % str(self.bad[url]))
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        if url in self.roots:
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            d.put("Note:   This is a root URL\n")
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        if url in self.done:
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            d.put("Status: checked\n")
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            o = self.done[url]
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        elif url in self.todo:
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            d.put("Status: to check\n")
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            o = self.todo[url]
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        else:
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            d.put("Status: unknown (!)\n")
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            o = []
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        if (not url[1]) and url[0] in self.errors:
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            d.put("Bad links from this page:\n")
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            for triple in self.errors[url[0]]:
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                link, rawlink, msg = triple
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                d.put("  HREF  %s" % self.format_url(link))
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                if self.format_url(link) != rawlink: d.put(" (%s)" %rawlink)
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                d.put("\n")
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                d.put("  error %s\n" % str(msg))
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        self.__mp.showpanel("Details")
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        for source, rawlink in o:
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            d.put("Origin: %s" % source)
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            if rawlink != self.format_url(url):
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                d.put(" (%s)" % rawlink)
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            d.put("\n")
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        d.text.yview("1.0")
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    def setbad(self, url, msg):
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        webchecker.Checker.setbad(self, url, msg)
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        self.__bad.insert(url)
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        self.newstatus()
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    def setgood(self, url):
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        webchecker.Checker.setgood(self, url)
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        self.__bad.remove(url)
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        self.newstatus()
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    def newlink(self, url, origin):
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        webchecker.Checker.newlink(self, url, origin)
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        if url in self.done:
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            self.__done.insert(url)
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        elif url in self.todo:
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            self.__todo.insert(url)
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        self.newstatus()
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    def markdone(self, url):
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        webchecker.Checker.markdone(self, url)
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        self.__done.insert(url)
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        self.__todo.remove(url)
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        self.newstatus()
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    def seterror(self, url, triple):
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        webchecker.Checker.seterror(self, url, triple)
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        self.__errors.insert((url, ''))
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        self.newstatus()
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    def newstatus(self):
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        self.__status.config(text="Status: "+self.status())
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        self.__parent.update()
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    def update_checkext(self):
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        self.checkext = self.__cv.get()
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class ListPanel:
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    def __init__(self, mp, name, checker, showinfo=None):
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        self.mp = mp
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        self.name = name
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        self.showinfo = showinfo
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        self.checker = checker
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        self.panel = mp.addpanel(name)
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        self.list, self.frame = tktools.make_list_box(
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            self.panel, width=60, height=5)
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        self.list.config(exportselection=0)
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        if showinfo:
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            self.list.bind('<Double-Button-1>', self.doubleclick)
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        self.items = []
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    def clear(self):
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        self.items = []
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        self.list.delete(0, END)
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        self.mp.hidepanel(self.name)
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    def doubleclick(self, event):
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        l = self.selectedindices()
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        if l:
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            self.showinfo(self.items[l[0]])
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    def selectedindices(self):
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        l = self.list.curselection()
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        if not l: return []
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        return list(map(int, l))
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    def insert(self, url):
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        if url not in self.items:
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            if not self.items:
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                self.mp.showpanel(self.name)
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            # (I tried sorting alphabetically, but the display is too jumpy)
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            i = len(self.items)
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            self.list.insert(i, self.checker.format_url(url))
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            self.list.yview(i)
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            self.items.insert(i, url)
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    def remove(self, url):
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        try:
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            i = self.items.index(url)
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        except (ValueError, IndexError):
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            pass
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        else:
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            was_selected = i in self.selectedindices()
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            self.list.delete(i)
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            del self.items[i]
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            if not self.items:
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                self.mp.hidepanel(self.name)
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            elif was_selected:
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                if i >= len(self.items):
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                    i = len(self.items) - 1
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                self.list.select_set(i)
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class LogPanel:
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    def __init__(self, mp, name):
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        self.mp = mp
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        self.name = name
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        self.panel = mp.addpanel(name)
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        self.text, self.frame = tktools.make_text_box(self.panel, height=10)
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        self.text.config(wrap=NONE)
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    def clear(self):
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        self.text.delete("1.0", END)
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        self.text.yview("1.0")
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    def put(self, s):
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        self.text.insert(END, s)
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        if '\n' in s:
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            self.text.yview(END)
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    def write(self, s):
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        self.text.insert(END, s)
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        if '\n' in s:
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            self.text.yview(END)
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            self.panel.update()
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class MultiPanel:
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    def __init__(self, parent):
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        self.parent = parent
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        self.frame = Frame(self.parent)
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        self.frame.pack(expand=1, fill=BOTH)
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        self.topframe = Frame(self.frame, borderwidth=2, relief=RAISED)
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        self.topframe.pack(fill=X)
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        self.botframe = Frame(self.frame)
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        self.botframe.pack(expand=1, fill=BOTH)
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        self.panelnames = []
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        self.panels = {}
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    def addpanel(self, name, on=0):
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        v = StringVar(self.parent)
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        if on:
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            v.set(name)
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        else:
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            v.set("")
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        check = Checkbutton(self.topframe, text=name,
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                            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()
 |