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Minor improvement to markov generator.
[plomlombot-irc.git] / plomlombot.py
index b45c67a7aa12feeee10695c218f6a05dfe1d1912..1be105cbdf51325b4817177cb34f29860c57ac1a 100755 (executable)
@@ -11,6 +11,7 @@ import bs4
 import random
 import hashlib
 import os
+import plomsearch
 
 # Defaults, may be overwritten by command line arguments.
 SERVER = "irc.freenode.net"
@@ -18,6 +19,7 @@ PORT = 6667
 TIMEOUT = 240
 USERNAME = "plomlombot"
 NICKNAME = USERNAME
+TWTFILE = ""
 
 
 class ExceptionForRestart(Exception):
@@ -92,110 +94,326 @@ class IO:
         return line
 
 
-def init_session(server, port, timeout, nickname, username, channel):
-    print("CONNECTING TO " + server)
-    io = IO(server, port, timeout)
-    io.send_line("NICK " + nickname)
-    io.send_line("USER " + username + " 0 * : ")
-    io.send_line("JOIN " + channel)
-    return io
-
-
-def lineparser_loop(io, nickname):
-
-    def act_on_privmsg(tokens):
-
-        def notice(msg):
-            io.send_line("NOTICE " + target + " :" + msg)
-
-        def url_check(msg):
-            matches = re.findall("(https?://[^\s>]+)", msg)
-            for i in range(len(matches)):
-                url = matches[i]
-                try:
-                    r = requests.get(url, timeout=15)
-                except (requests.exceptions.TooManyRedirects,
-                        requests.exceptions.ConnectionError,
-                        requests.exceptions.InvalidURL,
-                        requests.exceptions.InvalidSchema) as error:
-                    notice("TROUBLE FOLLOWING URL: " + str(error))
-                    continue
-                title = bs4.BeautifulSoup(r.text).title
-                if title:
-                    notice("PAGE TITLE: " + title.string.strip())
-                else:
-                    notice("PAGE HAS NO TITLE TAG")
-
-        def command_check(msg):
-            if msg[0] != "!":
+def handle_command(command, argument, notice, target, session):
+    hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
+    quotesfile_name = "quotes_" + hash_string
+
+    def addquote():
+        if not os.access(quotesfile_name, os.F_OK):
+            quotesfile = open(quotesfile_name, "w")
+            quotesfile.write("QUOTES FOR " + target + ":\n")
+            quotesfile.close()
+        quotesfile = open(quotesfile_name, "a")
+        quotesfile.write(argument + "\n")
+        quotesfile.close()
+        quotesfile = open(quotesfile_name, "r")
+        lines = quotesfile.readlines()
+        quotesfile.close()
+        notice("ADDED QUOTE #" + str(len(lines) - 1))
+
+    def quote():
+
+        def help():
+            notice("SYNTAX: !quote [int] OR !quote search QUERY")
+            notice("QUERY may be a boolean grouping of quoted or unquoted " +
+                   "search terms, examples:")
+            notice("!quote search foo")
+            notice("!quote search foo AND (bar OR NOT baz)")
+            notice("!quote search \"foo\\\"bar\" AND ('NOT\"' AND \"'foo'\"" +
+                   " OR 'bar\\'baz')")
+
+        if "" == argument:
+            tokens = []
+        else:
+            tokens = argument.split(" ")
+        if (len(tokens) > 1 and tokens[0] != "search") or \
+            (len(tokens) == 1 and
+                (tokens[0] == "search" or not tokens[0].isdigit())):
+            help()
+            return
+        if not os.access(quotesfile_name, os.F_OK):
+            notice("NO QUOTES AVAILABLE")
+            return
+        quotesfile = open(quotesfile_name, "r")
+        lines = quotesfile.readlines()
+        quotesfile.close()
+        lines = lines[1:]
+        if len(tokens) == 1:
+            i = int(tokens[0])
+            if i == 0 or i > len(lines):
+                notice("THERE'S NO QUOTE OF THAT INDEX")
                 return
-            tokens = msg[1:].split()
-            hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
-            quotesfile_name = "quotes_" + hash_string
-            if tokens[0] == "addquote":
-                if not os.access(quotesfile_name, os.F_OK):
-                    quotesfile = open(quotesfile_name, "w")
-                    quotesfile.write("QUOTES FOR " + target + ":\n")
-                    quotesfile.close()
-                quotesfile = open(quotesfile_name, "a")
-                quotesfile.write(str.join(" ", tokens[1:]) + "\n")
-                quotesfile.close()
-                quotesfile = open(quotesfile_name, "r")
-                lines = quotesfile.readlines()
-                quotesfile.close()
-                notice("ADDED QUOTE #" + str(len(lines) - 1))
-            elif tokens[0] == "quote":
-                if len(tokens) > 2 or \
-                    (len(tokens) == 2 and not tokens[1].isdigit()):
-                    notice("SYNTAX: !quote [int]")
-                    return
-                if not os.access(quotesfile_name, os.F_OK):
-                    notice("NO QUOTES AVAILABLE")
-                    return
-                quotesfile = open(quotesfile_name, "r")
-                lines = quotesfile.readlines()
-                quotesfile.close()
-                lines = lines[1:]
-                if len(tokens) == 2:
-                    i = int(tokens[1])
-                    if i == 0 or i > len(lines):
-                        notice("THERE'S NO QUOTE OF THAT INDEX")
-                        return
-                    i = i - 1
-                else:
-                    i = random.randrange(len(lines))
-                notice("QUOTE #" + str(i + 1) + ": " + lines[i])
-
-        sender = ""
-        for rune in tokens[0]:
-            if rune == "!":
+            i = i - 1
+        elif len(tokens) > 1:
+            query = str.join(" ", tokens[1:])
+            try:
+                results = plomsearch.search(query, lines)
+            except plomsearch.LogicParserError as err:
+                notice("FAILED QUERY PARSING: " + str(err))
+                return
+            if len(results) == 0:
+                notice("NO QUOTES MATCHING QUERY")
+            else:
+                for result in results:
+                    notice("QUOTE #" + str(result[0] + 1) + " : " + result[1])
+            return
+        else:
+            i = random.randrange(len(lines))
+        notice("QUOTE #" + str(i + 1) + ": " + lines[i])
+
+    def markov():
+        from random import choice, shuffle
+        select_length = 2
+        selections = []
+
+        def markov(snippet):
+            usable_selections = []
+            for i in range(select_length, 0, -1):
+                for selection in selections:
+                    add = True
+                    for j in range(i):
+                        j += 1
+                        if snippet[-j] != selection[-(j+1)]:
+                            add = False
+                            break
+                    if add:
+                        usable_selections += [selection]
+                if [] != usable_selections:
+                    break
+            if [] == usable_selections:
+                usable_selections = selections
+            selection = choice(usable_selections)
+            return selection[select_length]
+
+        hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
+        markovfeed_name = "markovfeed_" + hash_string
+        if not os.access(markovfeed_name, os.F_OK):
+            notice("NOT ENOUGH TEXT TO MARKOV.")
+            return
+
+        # Lowercase incoming lines, ensure they end in a sentence end mark.
+        file = open(markovfeed_name, "r")
+        lines = file.readlines()
+        file.close()
+        tokens = []
+        sentence_end_markers = ".!?)("
+        for line in lines:
+            line = line.lower().replace("\n", "")
+            if line[-1] not in sentence_end_markers:
+                line += "."
+            tokens += line.split()
+        if len(tokens) <= select_length:
+            notice("NOT ENOUGH TEXT TO MARKOV.")
+            return
+
+        # Replace URLs with escape string for now, so that the Markov selector
+        # won't see them as different strings. Stash replaced URLs in urls.
+        urls = []
+        url_escape = "\nURL"
+        url_starts = ["http://", "https://", "<http://", "<https://"]
+        for i in range(len(tokens)):
+            for url_start in url_starts:
+                if tokens[i][:len(url_start)] == url_start:
+                    length = len(tokens[i])
+                    if url_start[0] == "<":
+                        try:
+                            length = tokens[i].index(">") + 1
+                        except ValueError:
+                            pass
+                    urls += [tokens[i][:length]]
+                    tokens[i] = url_escape + tokens[i][length:]
+                    break
+
+        # For each snippet of select_length, use markov() to find continuation
+        # token from selections. Replace present users' names with malkovich.
+        # Start snippets with the beginning of a sentence, if possible.
+        for i in range(len(tokens) - select_length):
+            token_list = []
+            for j in range(select_length + 1):
+                token_list += [tokens[i + j]]
+            selections += [token_list]
+        snippet = []
+        for i in range(select_length):
+            snippet += [""]
+        shuffle(selections)
+        for i in range(len(selections)):
+            if selections[i][0][-1] in sentence_end_markers:
+                for i in range(select_length):
+                    snippet[i] = selections[i][i + 1]
                 break
-            if rune != ":":
-                sender += rune
-        receiver = ""
-        for rune in tokens[2]:
-            if rune == "!":
+        msg = ""
+        malkovich = "malkovich"
+        while 1:
+            new_end = markov(snippet)
+            for name in session.users_in_chan:
+                if new_end[:len(name)] == name.lower():
+                    new_end = malkovich + new_end[len(name):]
+                    break
+            if len(msg) + len(new_end) > 200:
+                break
+            msg += new_end + " "
+            for i in range(select_length - 1):
+                snippet[i] = snippet[i + 1]
+            snippet[select_length - 1] = new_end
+
+        # Replace occurences of url escape string with random choice from urls.
+        while True:
+            index = msg.find(url_escape)
+            if index < 0:
                 break
-            if rune != ":":
-                receiver += rune
-        target = sender
-        if receiver != nickname:
-            target = receiver
-        msg = str.join(" ", tokens[3:])[1:]
-        command_check(msg)
-        url_check(msg)
-
-    while True:
-        line = io.recv_line()
-        if not line:
-            continue
-        tokens = line.split(" ")
-        if len(tokens) > 1:
-            if tokens[1] == "PRIVMSG":
-                act_on_privmsg(tokens)
-            if tokens[0] == "PING":
-                io.send_line("PONG " + tokens[1])
+            msg = msg.replace(url_escape, choice(urls), 1)
+
+        # More meaningful ways to randomly end sentences.
+        notice(msg + malkovich + ".")
+
+    def twt():
+        def try_open(mode):
+            try:
+                twtfile = open(session.twtfile, mode)
+            except (PermissionError, FileNotFoundError) as err:
+                notice("CAN'T ACCESS OR CREATE TWT FILE: " + str(err))
+                return None
+            return twtfile
 
+        from datetime import datetime
+        if not os.access(session.twtfile, os.F_OK):
+            twtfile = try_open("w")
+            if None == twtfile:
+                return
+            twtfile.close()
+        twtfile = try_open("a")
+        if None == twtfile:
+            return
+        twtfile.write(datetime.utcnow().isoformat() + "\t" + argument + "\n")
+        twtfile.close()
+        notice("WROTE TWT.")
+
+    if "addquote" == command:
+        addquote()
+    elif "quote" == command:
+        quote()
+    elif "markov" == command:
+        markov()
+    elif "twt" == command:
+        twt()
+
+
+def handle_url(url, notice, show_url=False):
+
+    def mobile_twitter_hack(url):
+        re1 = 'https?://(mobile.twitter.com/)[^/]+(/status/)'
+        re2 = 'https?://mobile.twitter.com/([^/]+)/status/([^\?/]+)'
+        m = re.search(re1, url)
+        if m and m.group(1) == 'mobile.twitter.com/' \
+                and m.group(2) == '/status/':
+            m = re.search(re2, url)
+            url = 'https://twitter.com/' + m.group(1) + '/status/' + m.group(2)
+            handle_url(url, notice, True)
+            return True
+
+    try:
+        r = requests.get(url, timeout=15)
+    except (requests.exceptions.TooManyRedirects,
+            requests.exceptions.ConnectionError,
+            requests.exceptions.InvalidURL,
+            UnicodeError,
+            requests.exceptions.InvalidSchema) as error:
+        notice("TROUBLE FOLLOWING URL: " + str(error))
+        return
+    if mobile_twitter_hack(url):
+        return
+    title = bs4.BeautifulSoup(r.text, "html.parser").title
+    if title:
+        prefix = "PAGE TITLE: "
+        if show_url:
+            prefix = "PAGE TITLE FOR <" + url + ">: "
+        notice(prefix + title.string.strip())
+    else:
+        notice("PAGE HAS NO TITLE TAG")
+
+
+class Session:
+
+    def __init__(self, io, username, nickname, channel, twtfile):
+        self.io = io
+        self.nickname = nickname
+        self.channel = channel
+        self.users_in_chan = []
+        self.twtfile = twtfile
+        self.io.send_line("NICK " + self.nickname)
+        self.io.send_line("USER " + username + " 0 * : ")
+        self.io.send_line("JOIN " + self.channel)
+
+    def loop(self):
+
+        def handle_privmsg(tokens):
+
+            def handle_input(msg, target):
+
+                def notice(msg):
+                    self.io.send_line("NOTICE " + target + " :" + msg)
+
+                matches = re.findall("(https?://[^\s>]+)", msg)
+                for i in range(len(matches)):
+                    handle_url(matches[i], notice)
+                if "!" == msg[0]:
+                    tokens = msg[1:].split()
+                    argument = str.join(" ", tokens[1:])
+                    handle_command(tokens[0], argument, notice, target, self)
+                    return
+                hash_string = hashlib.md5(target.encode("utf-8")).hexdigest()
+                markovfeed_name = "markovfeed_" + hash_string
+                file = open(markovfeed_name, "a")
+                file.write(msg + "\n")
+                file.close()
+
+            sender = ""
+            for rune in tokens[0]:
+                if rune == "!":
+                    break
+                if rune != ":":
+                    sender += rune
+            receiver = ""
+            for rune in tokens[2]:
+                if rune == "!":
+                    break
+                if rune != ":":
+                    receiver += rune
+            target = sender
+            if receiver != self.nickname:
+                target = receiver
+            msg = str.join(" ", tokens[3:])[1:]
+            handle_input(msg, target)
+
+        def name_from_join_or_part(tokens):
+            token = tokens[0][1:]
+            index_cut = token.find("@")
+            index_ex = token.find("!")
+            if index_ex > 0 and index_ex < index_cut:
+                index_cut = index_ex
+            return token[:index_cut]
+
+        while True:
+            line = self.io.recv_line()
+            if not line:
+                continue
+            tokens = line.split(" ")
+            if len(tokens) > 1:
+                if tokens[0] == "PING":
+                    self.io.send_line("PONG " + tokens[1])
+                elif tokens[1] == "PRIVMSG":
+                    handle_privmsg(tokens)
+                elif tokens[1] == "353":
+                    names = tokens[5:]
+                    names[0] = names[0][1:]
+                    self.users_in_chan += names
+                elif tokens[1] == "JOIN":
+                    name = name_from_join_or_part(tokens)
+                    if name != self.nickname:
+                        self.users_in_chan += [name]
+                elif tokens[1] == "PART":
+                    name = name_from_join_or_part(tokens)
+                    del(self.users_in_chan[self.users_in_chan.index(name)])
 
 def parse_command_line_arguments():
     parser = argparse.ArgumentParser()
@@ -206,7 +424,7 @@ def parse_command_line_arguments():
     parser.add_argument("-p, --port", action="store", dest="port", type=int,
                         default=PORT, help="port to connect to (default : "
                         + str(PORT) + ")")
-    parser.add_argument("-t, --timeout", action="store", dest="timeout",
+    parser.add_argument("-w, --wait", action="store", dest="timeout",
                         type=int, default=TIMEOUT,
                         help="timeout in seconds after which to attempt " +
                         "reconnect (default: " + str(TIMEOUT) + ")")
@@ -216,16 +434,21 @@ def parse_command_line_arguments():
     parser.add_argument("-n, --nickname", action="store", dest="nickname",
                         default=NICKNAME, help="nickname to use (default: "
                         + NICKNAME + ")")
+    parser.add_argument("-t, --twtfile", action="store", dest="twtfile",
+                        default=TWTFILE, help="twtfile to use (default: "
+                        + TWTFILE + ")")
     parser.add_argument("CHANNEL", action="store", help="channel to join")
     opts, unknown = parser.parse_known_args()
     return opts
 
+
 opts = parse_command_line_arguments()
 while True:
     try:
-        io = init_session(opts.server, opts.port, opts.timeout, opts.nickname,
-                          opts.username, opts.CHANNEL)
-        lineparser_loop(io, opts.nickname)
+        io = IO(opts.server, opts.port, opts.timeout)
+        session = Session(io, opts.username, opts.nickname, opts.CHANNEL,
+            opts.twtfile)
+        session.loop()
     except ExceptionForRestart:
         io.socket.close()
         continue