split IRC.c and moved it to a different repo

include/IRC/IRC.h

@@ -0,0 +1,9 @@
+#ifndef IRC_H
+#define IRC_H
+
+#include "IRC/IRC_structs.h"
+#include "IRC/IRC_events.h"
+#include "IRC/IRC_numerics.h"
+#include "IRC/IRC_functions.h"
+
+#endif

include/IRC/IRC_events.h

@@ -0,0 +1,16 @@
+#ifndef IRC_EVENTS_H
+#define IRC_EVENTS_H
+
+typedef enum
+{
+    IRC_EVENT_PRIVMSG,
+    IRC_EVENT_NOTICE,
+    IRC_EVENT_JOIN,
+    IRC_EVENT_PART,
+    IRC_EVENT_QUIT,
+    IRC_EVENT_MODESET,
+    IRC_EVENT_AWAY,
+    IRC_EVENT_KICK
+} irc_event_type_t;
+
+#endif

include/IRC/IRC_functions.h

@@ -0,0 +1,49 @@
+#ifndef IRC_FUNCTIONS_H
+#define IRC_FUNCTIONS_H
+
+#include "IRC_structs.h"
+#include "defines.h"
+
+PUBLIC void IRC_ParseMessage(char* line, irc_message_t *msg);
+PUBLIC void IRC_ProcessMessage(irc_message_t *msg, irc_client_t *irc);
+
+// various IRC commands
+PUBLIC void IRC_PRIVMSG(char* to, char* msg, irc_client_t *irc);
+PUBLIC void IRC_NOTICE(char* to, char* msg, irc_client_t *irc);
+PUBLIC void IRC_NICK(char *nick, irc_client_t *irc);
+PUBLIC void IRC_USER(char *ident, char* realname, irc_client_t *irc);
+
+PUBLIC void IRC_CTCPSend(char *to, char *cmd, irc_client_t *irc);
+
+// registration
+PUBLIC void IRC_SetConnectionParameters(char* host, int port, irc_connection_type_t conntype, irc_client_t *irc);
+PUBLIC void IRC_SetIdentityParameters(char* nickname, char* username, char* realname, irc_client_t *irc);
+PUBLIC void IRC_Register(irc_client_t *irc);
+PUBLIC void IRC_SetSASLParameters(irc_sasl_mechanism_t, char* username, char* password, irc_client_t *irc);
+
+PUBLIC void IRC_RequestSASLAuthentication(irc_client_t *irc);
+
+// Capability negotiation block
+PUBLIC void IRC_StartCapabilityNegotiation(irc_client_t *irc);
+PUBLIC void IRC_RequestCapabilities(char* caps, irc_client_t *irc);
+PUBLIC void IRC_EndCapabilityNegotiation(irc_client_t *irc);
+
+PUBLIC void IRC_NeedCapabilities(char* caps, irc_client_t *irc);
+
+PUBLIC int IRC_ParseCapabilities(char* caps, irc_capability_t *capabilities, int capsLength);
+
+// raw socket things
+PUBLIC void IRC_Connect(irc_client_t *irc);
+PUBLIC ssize_t IRC_Receive(irc_client_t *irc, char* toBuf, size_t bufSize);
+PUBLIC void IRC_Send(irc_client_t *irc, char* toSend);
+PUBLIC void IRC_Close(irc_client_t *irc);
+
+// init
+PUBLIC int IRC_Init(irc_client_t *irc);
+PUBLIC void IRC_Free(irc_client_t *irc);
+
+PUBLIC int IRC_PollEvent(irc_event_t *event, irc_client_t *irc);
+
+void IRC_PushEvent(irc_event_t *event, irc_client_t *irc);
+
+#endif

include/IRC/IRC_numerics.h

@@ -0,0 +1,203 @@
+#ifndef IRC_NUMERICS_H
+#define IRC_NUMERICS_H
+
+// * 0xx (initial login information)
+#define RPL_WELCOME "001"
+#define RPL_YOURHOST "002"
+#define RPL_CREATED "003"
+#define RPL_MYINFO "004"
+#define RPL_ISUPPORT "005"
+#define RPL_BOUNCE "010" /* deprecated */
+
+// * 2xx (request information)
+
+/* replies to STATS */
+#define RPL_STATSCOMMANDS "212"
+#define RPL_ENDOFSTATS "219"
+#define RPL_STATSUPTIME "242"
+
+/* server user modes on-connect */
+#define RPL_UMODEIS "221"
+
+/* replies to LUSERS */
+#define RPL_LUSERCLIENT "251"
+#define RPL_LUSEROP "252"
+#define RPL_LUSERUNKNOWN "253"
+#define RPL_LUSERCHANNELS "254"
+#define RPL_LUSERME "255"
+#define RPL_LOCALUSERS "265"
+#define RPL_GLOBALUSERS "266"
+
+/* replies to ADMIN */
+#define RPL_ADMINME "256"
+#define RPL_ADMINLOC1 "257"
+#define RPL_ADMINLOC2 "258"
+#define RPL_ADMINEMAIL "259"
+
+/* generic replies (i.e. ratelimiting) */
+#define RPL_TRYAGAIN "263"
+
+/* WHOIS info */
+#define RPL_WHOISCERTFP "276"
+
+// * 3xx (information for clients)
+#define RPL_NONE "300"
+
+/* replies to WHOIS/WHOWAS */
+#define RPL_AWAY "301"
+#define RPL_WHOISREGNICK "307"
+#define RPL_WHOISUSER "311"
+#define RPL_WHOISSERVER "312"
+#define RPL_WHOISOPERATOR "313"
+#define RPL_WHOWASUSER "314"
+#define RPL_WHOISIDLE "317"
+#define RPL_WHOISCHANNELS "319"
+#define RPL_WHOISSPECIAL "320"
+#define RPL_WHOISACCOUNT "330"
+#define RPL_WHOISACTUALLY "338"
+#define RPL_WHOISHOST "378"
+#define RPL_WHOISMODES "379"
+#define RPL_ENDOFWHOIS "318"
+#define RPL_ENDOFWHOWAS "369"
+#define ERR_WASNOSUCHNICK "406" /* WHOWAS error */
+#define RPL_WHOISSECURE "671"
+
+/* replies to WHO */
+#define RPL_WHOREPLY "352"
+#define RPL_ENDOFWHO "315"
+
+/* replies to LIST */
+#define RPL_LISTSTART "321"
+#define RPL_LIST "322"
+#define RPL_LISTEND "323"
+
+/* upon joining a channel */
+#define RPL_CHANNELMODEIS "324"
+#define RPL_CREATIONTIME "329"
+#define RPL_TOPIC "332"
+#define RPL_TOPICWHOTIME "333"
+
+/* replies to TOPIC */
+#define RPL_NOTOPIC "331"
+
+/* replies to INVITE */
+#define RPL_INVITELIST "336"
+#define RPL_ENDOFINVITELIST "337"
+#define RPL_INVITING "341"
+
+/* replies to MODE */
+#define RPL_INVEXLIST "346"
+#define RPL_ENDOFINVEXLIST "347"
+#define RPL_EXCEPTLIST "348"
+#define RPL_ENDOFEXCEPTLIST "349"
+#define RPL_BANLIST "367"
+#define RPL_ENDOFBANLIST "368"
+#define ERR_INVALIDMODEPARAM "696"
+
+/* replies to INFO */
+#define RPL_INFO "371"
+#define RPL_ENDOFINFO "374"
+
+/* when sending a Message of the Day */
+#define RPL_MOTDSTART "375"
+#define RPL_MOTD "372"
+#define RPL_ENDOFMOTD "376"
+
+/* replies to VERSION */
+#define RPL_VERSION "351"
+
+/* replies to NAMES */
+#define RPL_NAMREPLY "353"
+#define RPL_ENDOFNAMES "366"
+
+/* replies to LINKS */
+#define RPL_LINKS "364"
+#define RPL_ENDOFLINKS "365"
+
+/* replies to OPER */
+#define RPL_YOUREOPER "381"
+
+/* replies to REHASH */
+#define RPL_REHASHING "382"
+
+/* replies to TIME */
+#define RPL_TIME "391"
+
+/* replies to USERHOST */
+#define RPL_USERHOST "302"
+
+/* sent to clients to inform of away status */
+#define RPL_UNAWAY "305"
+#define RPL_NOWAWAY "306"
+
+// * 4xx and 5xx (errors)
+
+#define ERR_UNKNOWNERROR "400"
+#define ERR_NOSUCHNICK "401"
+#define ERR_NOSUCHSERVER "402"
+#define ERR_NOSUCHCHANNEL "403"
+#define ERR_CANNOTSENDTOCHAN "404"
+#define ERR_TOOMANYCHANNELS "405"
+#define ERR_NOORIGIN "409"
+#define ERR_NORECIPIENT "411"
+#define ERR_NOTEXTTOSEND "412"
+#define ERR_INPUTTOOLONG "417"
+#define ERR_UNKNOWNCOMMAND "421"
+#define ERR_NOMOTD "422"
+#define ERR_NONICKNAMEGIVEN "431"
+#define ERR_ERRONEUSNICKNAME "432"
+#define ERR_NICKNAMEINUSE "433"
+#define ERR_NICKCOLLISION "436"
+#define ERR_USERNOTINCHANNEL "441"
+#define ERR_NOTONCHANNEL "442"
+#define ERR_USERONCHANNEL "443"
+#define ERR_NOTREGISTERED "451"
+#define ERR_NEEDMOREPARAMS "461"
+#define ERR_ALREADYREGISTERED "462"
+#define ERR_PASSWDMISMATCH "464"
+#define ERR_YOUREBANNEDCREEP "465"
+#define ERR_CHANNELISFULL "471"
+#define ERR_UNKNOWNMODE "472"
+#define ERR_INVITEONLYCHAN "473"
+#define ERR_BANNEDFROMCHAN "474"
+#define ERR_BADCHANNELKEY "475"
+#define ERR_BADCHANMASK "476"
+#define ERR_NOPRIVILEGES "481"
+#define ERR_CHANOPRIVSNEEDED "482"
+#define ERR_CANTKILLSERVER "483"
+#define ERR_NOOPERHOST "491"
+#define ERR_UMODEUNKNOWNFLAG "501"
+#define ERR_USERSDONTMATCH "502"
+#define ERR_INVALIDKEY "525"
+
+/* replies to HELP */
+#define ERR_HELPNOTFOUND "524"
+#define RPL_HELPSTART "704"
+#define RPL_HELPTXT "705"
+#define RPL_ENDOFHELP "706"
+
+// * 6xx (various TLS and IRCv3 stuff)
+
+/* STARTTLS stuff */
+#define RPL_STARTTLS "670"
+#define ERR_STARTTLS "691"
+
+// * 7xx (various)
+
+#define ERR_NOPRIVS "723"
+
+// * 9xx (authentication)
+
+/* SASL */
+#define RPL_LOGGEDIN "900"
+#define RPL_LOGGEDOUT "901"
+#define RPL_SASLSUCCESS "903"
+#define ERR_NICKLOCKED "902"
+#define ERR_SASLFAIL "904"
+#define ERR_SASLTOOLONG "905"
+#define ERR_SASLABORTED "906"
+#define ERR_SASLALREADY "907"
+#define RPL_SASLMECHS "908"
+
+
+#endif

include/IRC/IRC_structs.h

@@ -0,0 +1,123 @@
+#ifndef IRC_STRUCTS_H
+#define IRC_STRUCTS_H
+
+#include "IRC/IRC_events.h"
+#include "netcode.h"
+#include <stdbool.h>
+#include <openssl/ssl.h>
+
+typedef enum
+{
+    SASL_MECHANISM_NONE,
+    SASL_MECHANISM_PLAIN,
+    SASL_MECHANISM_EXTERNAL
+} irc_sasl_mechanism_t;
+
+typedef struct
+{
+    char nickname[32];
+    char ident[16];
+    char hostname;
+} irc_hostmask_t;
+
+typedef struct {
+    char  line[513];
+    char *source;
+    char *command;
+    char *argv[16];
+    int   argc;
+} irc_message_t;
+
+typedef struct
+{
+    irc_event_type_t type;
+    irc_message_t orig_msg;
+} irc_event_t;
+
+typedef struct
+{
+    irc_hostmask_t hostmask;
+    char prefix;
+} irc_chanuser_t;
+
+typedef struct
+{
+    char name[64];
+    char topic[513];
+    irc_chanuser_t* users;
+} irc_channel_t;
+
+typedef struct 
+{
+    char capLine[96];       // A place for name and args to point to.
+    char *name;
+    char *args;
+} irc_capability_t;
+
+typedef struct
+{
+    char username[32];
+    char password[64];
+} irc_sasl_plain_credentials_t;
+
+typedef struct
+{
+    char nickname[32];
+    unsigned char fingerprint[20];
+} irc_sasl_external_credentials_t;
+
+typedef struct
+{
+    irc_sasl_mechanism_t mechanism;
+    union {
+        irc_sasl_plain_credentials_t plain_credentials;
+        irc_sasl_external_credentials_t external_credentials;
+    };
+} irc_auth_t;
+
+typedef struct
+{
+    char nick[32];
+    char altnick[32];
+    char altnick2[32];
+    char username[16];
+    char realname[128];
+} irc_identity_t;
+typedef enum
+{
+    IRC_CONNECTION_PLAINTEXT,
+    IRC_CONNECTION_TLS
+} irc_connection_type_t;
+
+typedef struct
+{
+    char host[128];
+    int port;
+    irc_connection_type_t connType;
+} irc_connection_info_t;
+
+typedef struct
+{
+    irc_connection_info_t connectionInfo;
+    sslSockfd_t           connection;
+    irc_hostmask_t        ownHostmask;
+    char                  supportedCapabilities[513];
+    char                  requestedCapabilities[513];
+    irc_capability_t      acked[16];
+
+    /* Authentication parameters */
+    irc_auth_t            saslAuth;
+
+    /* Identity */
+    irc_identity_t        identity;
+
+    irc_event_t*          eventQueue; // lives on the heap
+    int                   eventQueuePtr;
+} irc_client_t;
+
+typedef struct {
+    const char *name;
+    void (*handler)(irc_message_t *msg, irc_client_t *irc);
+} command_t;
+
+#endif

include/IRC/base64.h

@@ -0,0 +1,9 @@
+#ifndef BASE64_H
+#define BASE64_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+int base64_encode(const uint8_t *in, size_t in_len, char *out, size_t out_size);
+
+#endif

include/IRC/defines.h

@@ -0,0 +1,7 @@
+#ifndef DEFINES_H
+#define DEFINES_H
+
+#define NUL '\0'
+#define PUBLIC __attribute__((visibility("default")))
+
+#endif

include/IRC/netcode.h

@@ -0,0 +1,24 @@
+#ifndef NETCODE_H
+#define NETCODE_H
+
+#include <openssl/crypto.h>
+
+
+typedef struct
+{
+    SSL *ssl;
+    int sockfd;
+    SSL_CTX *ctx;
+} sslSockfd_t;
+
+// Returns a socket file descriptor.
+sslSockfd_t NET_Connect(const char* host, int port);
+void NET_Send(sslSockfd_t info, const char* toSend);
+void NET_Close(sslSockfd_t info);
+
+// TLS versions of the same thing
+sslSockfd_t NET_TLS_Connect(const char* host, int port);
+void NET_TLS_Send(sslSockfd_t info, const char* toSend);
+void NET_TLS_Close(sslSockfd_t info);
+
+#endif