Phase 1: Incoming Protocol-Level Protection - Added MAX_LINES_PER_POLL = 50 constant to limit lines processed per poll iteration in irc_feed(), preventing burst flooding. - Added poll_lines_left counter to Session struct, reset each poll cycle. - Changed RateLimitEntry to track by user@host instead of nick, preventing trivial bypass via nick cycling. - Parse userhost from IRC prefix (nick!user@host) in irc_handle(). - Added violation tracking to RateLimitEntry for escalating penalties. Phase 2: Outgoing Message Throttling - Added OUTGOING_DELAY_MS = 100 constant for minimum delay between sends. - Modified net_send() with timestamp-based throttling using clock_gettime(). - Added 200ms delay between lines in !gitlog output (cmd_gitlog.h). - Added 150ms delay between AI response chunks (ai.h). Phase 3: Rate Limit Improvements - Increased RATE_LIMIT_MAX from 8 to 32 for larger tracking buffer. - Added TELL_DELIVER_MAX = 5 to limit messages per nick delivery. - Added AI_COOLDOWN_SECS = 5 to prevent rapid AI query re-submission. Phase 4: Command-Specific Fixes - Added rate_limit_check() to cmd_greeting_or_chat.h for casual chat. - Limited tell_deliver() to 5 messages per nick, excess stays queued. - Added 5-second cooldown after AI query completion before next query. Files modified: zynk.h, zynk.c, irc.h, net.h, ai.h, db.h, and all 19 command header files to pass current_userhost to rate_limit_check().
43 lines
1.4 KiB
C
43 lines
1.4 KiB
C
#ifndef CMD_UPTIME_H
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#define CMD_UPTIME_H
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#include "zynk.h"
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/*
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* cmd_uptime - Handle the "!uptime" command.
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*
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* Reports how long the bot has been running since it started. Formats
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* the uptime as days/hours/minutes/seconds as appropriate. Rate-limited.
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*
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* Parameters:
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* s - The IRC session.
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* msg - The raw message text.
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* reply_target - Channel or nick to reply to.
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* src_nick - The nick of the user who sent the command.
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*
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* Returns: 1 if matched, 0 otherwise.
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*/
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int cmd_uptime(Session *s, const char *msg, const char *reply_target, const char *src_nick) {
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if (strncmp(msg, "!uptime", 7) != 0) return 0;
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if (msg[7] != ' ' && msg[7] != '\0') return 0;
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if (rate_limit_check(src_nick, reply_target, current_userhost) < 0) return 1;
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time_t diff = time(NULL) - start_time;
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long days = diff / 86400;
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long hours = (diff % 86400) / 3600;
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long mins = (diff % 3600) / 60;
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long secs = diff % 60;
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char buf[128];
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if (days > 0)
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snprintf(buf, sizeof buf, "up %ldd %ldh %ldm %lds", days, hours, mins, secs);
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else if (hours > 0)
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snprintf(buf, sizeof buf, "up %ldh %ldm %lds", hours, mins, secs);
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else if (mins > 0)
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snprintf(buf, sizeof buf, "up %ldm %lds", mins, secs);
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else
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snprintf(buf, sizeof buf, "up %lds", secs);
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irc_reply(s, reply_target, src_nick, buf);
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log_stamp(); fprintf(stderr, CLR_YELLOW "UPTIME from %s in %s" CLR_RESET "\n", src_nick, reply_target);
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return 1;
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}
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#endif
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