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().
29 lines
903 B
C
29 lines
903 B
C
#ifndef CMD_PING_H
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#define CMD_PING_H
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#include "zynk.h"
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/*
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* cmd_ping - Handle the "!ping" command.
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*
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* Responds with "<nick>: pong!" to confirm the bot is alive.
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* Rate-limited to prevent flooding.
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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_ping(Session *s, const char *msg, const char *reply_target, const char *src_nick) {
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if (strncmp(msg, "!ping", 5) != 0) return 0;
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if (msg[5] != ' ' && msg[5] != '\0') return 0;
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if (rate_limit_check(src_nick, reply_target, current_userhost) < 0) return 1;
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irc_reply(s, reply_target, src_nick, "pong!");
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log_stamp(); fprintf(stderr, CLR_YELLOW "PING 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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