97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
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/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <err.h>
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#include <regex.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sysexits.h>
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#include "chat.h"
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static const char *Pattern = {
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"("
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"cvs|"
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"ftp|"
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"git|"
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"gopher|"
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"http|"
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"https|"
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"irc|"
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"ircs|"
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"magnet|"
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"sftp|"
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"ssh|"
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"svn|"
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"telnet|"
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"vnc"
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")"
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":[^[:space:]>\"]+"
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};
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static regex_t Regex;
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static void compile(void) {
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static bool compiled;
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if (compiled) return;
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compiled = true;
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int error = regcomp(&Regex, Pattern, REG_EXTENDED);
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if (!error) return;
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char buf[256];
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regerror(error, &Regex, buf, sizeof(buf));
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errx(EX_SOFTWARE, "regcomp: %s: %s", buf, Pattern);
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}
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enum { Cap = 32 };
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static struct {
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size_t ids[Cap];
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char *nicks[Cap];
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char *urls[Cap];
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size_t len;
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} ring;
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static void push(size_t id, const char *nick, const char *url, size_t len) {
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size_t i = ring.len++ % Cap;
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free(ring.nicks[i]);
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free(ring.urls[i]);
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ring.ids[i] = id;
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ring.nicks[i] = NULL;
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if (nick) {
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ring.nicks[i] = strdup(nick);
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if (!ring.nicks[i]) err(EX_OSERR, "strdup");
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}
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ring.urls[i] = strndup(url, len);
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if (!ring.urls[i]) err(EX_OSERR, "strndup");
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}
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void urlScan(size_t id, const char *nick, const char *mesg) {
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if (!mesg) return;
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compile();
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regmatch_t match = {0};
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for (const char *ptr = mesg; *ptr; ptr += match.rm_eo) {
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if (regexec(&Regex, ptr, 1, &match, 0)) break;
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push(id, nick, &ptr[match.rm_so], match.rm_eo - match.rm_so);
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}
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}
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void urlOpenCount(size_t id, size_t count) {
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// TODO
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}
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void urlOpenMatch(size_t id, const char *str) {
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// TODO
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}
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