catgirl/chat.h

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/* Copyright (C) 2020 C. McEnroe <june@causal.agency>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7:
*
* If you modify this Program, or any covered work, by linking or
* combining it with OpenSSL (or a modified version of that library),
* containing parts covered by the terms of the OpenSSL License and the
* original SSLeay license, the licensors of this Program grant you
* additional permission to convey the resulting work. Corresponding
* Source for a non-source form of such a combination shall include the
* source code for the parts of OpenSSL used as well as that of the
* covered work.
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*/
#include <assert.h>
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#include <ctype.h>
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#include <err.h>
#include <getopt.h>
#include <stdarg.h>
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#include <stdbool.h>
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#include <stdint.h>
#include <stdio.h>
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#include <string.h>
#include <strings.h>
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#include <sysexits.h>
#include <time.h>
#include <wchar.h>
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#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
#define BIT(x) x##Bit, x = 1 << x##Bit, x##Bit_ = x##Bit
typedef unsigned uint;
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typedef unsigned char byte;
static inline char *seprintf(char *ptr, char *end, const char *fmt, ...)
__attribute__((format(printf, 3, 4)));
static inline char *seprintf(char *ptr, char *end, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
int n = vsnprintf(ptr, end - ptr, fmt, ap);
va_end(ap);
if (n < 0) return NULL;
if (n > end - ptr) return end;
return ptr + n;
}
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enum Attr {
BIT(Bold),
BIT(Reverse),
BIT(Italic),
BIT(Underline),
};
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enum Color {
White, Black, Blue, Green, Red, Brown, Magenta, Orange,
Yellow, LightGreen, Cyan, LightCyan, LightBlue, Pink, Gray, LightGray,
Default = 99,
ColorCap,
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};
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struct Style {
enum Attr attr;
enum Color fg, bg;
};
static const struct Style StyleDefault = { 0, Default, Default };
enum { B = '\2', C = '\3', O = '\17', R = '\26', I = '\35', U = '\37' };
static inline size_t styleParse(struct Style *style, const char **str) {
switch (**str) {
break; case B: (*str)++; style->attr ^= Bold;
break; case O: (*str)++; *style = StyleDefault;
break; case R: (*str)++; style->attr ^= Reverse;
break; case I: (*str)++; style->attr ^= Italic;
break; case U: (*str)++; style->attr ^= Underline;
break; case C: {
(*str)++;
if (!isdigit(**str)) {
style->fg = Default;
style->bg = Default;
break;
}
style->fg = *(*str)++ - '0';
if (isdigit(**str)) style->fg = style->fg * 10 + *(*str)++ - '0';
if ((*str)[0] != ',' || !isdigit((*str)[1])) break;
(*str)++;
style->bg = *(*str)++ - '0';
if (isdigit(**str)) style->bg = style->bg * 10 + *(*str)++ - '0';
}
}
return strcspn(*str, (const char[]) { B, C, O, R, I, U, '\0' });
}
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static inline void styleStrip(char *buf, size_t cap, const char *str) {
*buf = '\0';
char *ptr = buf, *end = &buf[cap];
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struct Style style = StyleDefault;
while (*str) {
size_t len = styleParse(&style, &str);
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ptr = seprintf(ptr, end, "%.*s", (int)len, str);
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str += len;
}
}
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enum { None, Debug, Network, IDCap = 256 };
extern char *idNames[IDCap];
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extern enum Color idColors[IDCap];
extern uint idNext;
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static inline uint idFind(const char *name) {
for (uint id = 0; id < idNext; ++id) {
if (!strcasecmp(idNames[id], name)) return id;
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}
return None;
}
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static inline uint idFor(const char *name) {
uint id = idFind(name);
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if (id) return id;
if (idNext == IDCap) return Network;
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idNames[idNext] = strdup(name);
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idColors[idNext] = Default;
if (!idNames[idNext]) err(EX_OSERR, "strdup");
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return idNext++;
}
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extern uint32_t hashInit;
extern uint32_t hashBound;
static inline uint32_t _hash(const char *str) {
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if (*str == '~') str++;
uint32_t hash = hashInit;
for (; *str; ++str) {
hash = (hash << 5) | (hash >> 27);
hash ^= *str;
hash *= 0x27220A95;
}
return hash;
}
static inline enum Color hash(const char *str) {
if (hashBound < Blue) return Default;
return Blue + _hash(str) % (hashBound + 1 - Blue);
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}
extern struct Network {
char *name;
uint userLen;
uint hostLen;
char *chanTypes;
char *statusmsg;
char *prefixes;
char *prefixModes;
char *listModes;
char *paramModes;
char *setParamModes;
char *channelModes;
char excepts;
char invex;
} network;
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#define ENUM_CAP \
X("causal.agency/consumer", CapConsumer) \
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X("chghost", CapChghost) \
X("extended-join", CapExtendedJoin) \
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X("invite-notify", CapInviteNotify) \
X("message-tags", CapMessageTags) \
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X("multi-prefix", CapMultiPrefix) \
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X("sasl", CapSASL) \
X("server-time", CapServerTime) \
X("setname", CapSetname) \
X("userhost-in-names", CapUserhostInNames) \
X("znc.in/self-message", CapSelfMessage)
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enum Cap {
#define X(name, id) BIT(id),
ENUM_CAP
#undef X
};
extern struct Self {
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bool debug;
bool kiosk;
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bool restricted;
size_t pos;
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enum Cap caps;
char *plainUser;
char *plainPass;
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char *mode;
char *join;
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char *nick;
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char *user;
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char *host;
enum Color color;
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char *invited;
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char *quit;
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} self;
static inline void set(char **field, const char *value) {
free(*field);
*field = strdup(value);
if (!*field) err(EX_OSERR, "strdup");
}
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#define ENUM_TAG \
X("+draft/reply", TagReply) \
X("causal.agency/pos", TagPos) \
X("msgid", TagMsgID) \
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X("time", TagTime)
enum Tag {
#define X(name, id) id,
ENUM_TAG
#undef X
TagCap,
};
enum { ParamCap = 254 };
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struct Message {
char *tags[TagCap];
char *nick;
char *user;
char *host;
char *cmd;
char *params[ParamCap];
};
void ircConfig(
bool insecure, const char *trust, const char *cert, const char *priv
);
int ircConnect(const char *bind, const char *host, const char *port);
void ircHandshake(void);
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void ircPrintCert(void);
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void ircRecv(void);
void ircSend(const char *ptr, size_t len);
void ircFormat(const char *format, ...)
__attribute__((format(printf, 1, 2)));
void ircClose(void);
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extern uint execID;
extern int execPipe[2];
extern int utilPipe[2];
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enum { UtilCap = 16 };
struct Util {
uint argc;
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const char *argv[UtilCap];
};
static inline void utilPush(struct Util *util, const char *arg) {
if (1 + util->argc < UtilCap) {
util->argv[util->argc++] = arg;
} else {
errx(EX_CONFIG, "too many utility arguments");
}
}
enum Reply {
ReplyAway = 1,
ReplyBan,
ReplyExcepts,
ReplyHelp,
ReplyInvex,
ReplyJoin,
ReplyList,
ReplyMode,
ReplyNames,
ReplyNamesAuto,
ReplyTopic,
ReplyTopicAuto,
ReplyWho,
ReplyWhois,
ReplyWhowas,
ReplyCap,
};
extern uint replies[ReplyCap];
void handle(struct Message *msg);
void command(uint id, char *input);
const char *commandIsPrivmsg(uint id, const char *input);
const char *commandIsNotice(uint id, const char *input);
const char *commandIsAction(uint id, const char *input);
size_t commandWillSplit(uint id, const char *input);
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void commandCompleteAdd(void);
enum Heat {
Ice,
Cold,
Warm,
Hot,
};
enum {
TitleCap = 256,
StatusLines = 1,
MarkerLines = 1,
SplitLines = 5,
InputLines = 1,
InputCols = 1024,
};
extern char uiTitle[TitleCap];
extern struct _win_st *uiStatus;
extern struct _win_st *uiMain;
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extern struct _win_st *uiInput;
extern bool uiSpoilerReveal;
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extern struct Util uiNotifyUtil;
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void uiInit(void);
uint uiAttr(struct Style style);
short uiPair(struct Style style);
void uiShow(void);
void uiHide(void);
void uiDraw(void);
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void uiResize(void);
void uiWrite(uint id, enum Heat heat, const time_t *time, const char *str);
void uiFormat(
uint id, enum Heat heat, const time_t *time, const char *format, ...
) __attribute__((format(printf, 4, 5)));
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void uiLoad(const char *name);
int uiSave(void);
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void inputInit(void);
void inputWait(void);
void inputUpdate(void);
bool inputPending(uint id);
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void inputRead(void);
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void inputCompleteAdd(void);
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int inputSave(FILE *file);
void inputLoad(FILE *file, size_t version);
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enum Scroll {
ScrollOne,
ScrollPage,
ScrollAll,
ScrollUnread,
ScrollHot,
};
extern struct Time {
bool enable;
const char *format;
int width;
} windowTime;
extern enum Heat windowThreshold;
void windowInit(void);
void windowUpdate(void);
void windowResize(void);
bool windowWrite(uint id, enum Heat heat, const time_t *time, const char *str);
void windowBare(void);
uint windowID(void);
uint windowNum(void);
uint windowFor(uint id);
void windowShow(uint num);
void windowAuto(void);
void windowSwap(void);
void windowMove(uint from, uint to);
void windowClose(uint num);
void windowList(void);
void windowMark(void);
void windowUnmark(void);
void windowToggleMute(void);
void windowToggleTime(void);
void windowToggleThresh(int n);
bool windowTimeEnable(void);
void windowScroll(enum Scroll by, int n);
void windowSearch(const char *str, int dir);
int windowSave(FILE *file);
void windowLoad(FILE *file, size_t version);
enum { BufferCap = 1024 };
struct Buffer;
struct Line {
uint num;
enum Heat heat;
time_t time;
char *str;
};
struct Buffer *bufferAlloc(void);
void bufferFree(struct Buffer *buffer);
const struct Line *bufferSoft(const struct Buffer *buffer, size_t i);
const struct Line *bufferHard(const struct Buffer *buffer, size_t i);
int bufferPush(
struct Buffer *buffer, int cols, enum Heat thresh,
enum Heat heat, time_t time, const char *str
);
int bufferReflow(
struct Buffer *buffer, int cols, enum Heat thresh, size_t tail
);
const char *complete(uint id, const char *prefix);
const char *completeSubstr(uint id, const char *substr);
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void completeAccept(void);
void completeReject(void);
void completeAdd(uint id, const char *str, enum Color color);
void completeTouch(uint id, const char *str, enum Color color);
void completeReplace(uint id, const char *old, const char *new);
void completeRemove(uint id, const char *str);
void completeClear(uint id);
uint completeID(const char *str);
enum Color completeColor(uint id, const char *str);
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extern struct Util urlOpenUtil;
extern struct Util urlCopyUtil;
void urlScan(uint id, const char *nick, const char *mesg);
void urlOpenCount(uint id, uint count);
void urlOpenMatch(uint id, const char *str);
void urlCopyMatch(uint id, const char *str);
int urlSave(FILE *file);
void urlLoad(FILE *file, size_t version);
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enum { FilterCap = 64 };
extern struct Filter {
enum Heat heat;
char *mask;
char *cmd;
char *chan;
char *mesg;
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} filters[FilterCap];
struct Filter filterParse(enum Heat heat, char *pattern);
struct Filter filterAdd(enum Heat heat, const char *pattern);
bool filterRemove(struct Filter filter);
enum Heat filterCheck(enum Heat heat, uint id, const struct Message *msg);
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void logOpen(void);
void logFormat(uint id, const time_t *time, const char *format, ...)
__attribute__((format(printf, 3, 4)));
void logClose(void);
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char *configPath(char *buf, size_t cap, const char *path, int i);
char *dataPath(char *buf, size_t cap, const char *path, int i);
FILE *configOpen(const char *path, const char *mode);
FILE *dataOpen(const char *path, const char *mode);
int getopt_config(
int argc, char *const *argv,
const char *optstring, const struct option *longopts, int *longindex
);