catboy/chat.h

404 lines
10 KiB
C

/* 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.
*/
#include <assert.h>
#include <ctype.h>
#include <err.h>
#include <getopt.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <sysexits.h>
#include <time.h>
#include <wchar.h>
#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;
typedef unsigned char byte;
struct Cat {
char *buf;
size_t cap;
size_t len;
};
static inline void __attribute__((format(printf, 2, 3)))
catf(struct Cat *cat, const char *format, ...) {
va_list ap;
va_start(ap, format);
int len = vsnprintf(&cat->buf[cat->len], cat->cap - cat->len, format, ap);
assert(len >= 0);
va_end(ap);
cat->len += len;
if (cat->len >= cat->cap) cat->len = cat->cap - 1;
}
enum Attr {
BIT(Bold),
BIT(Reverse),
BIT(Italic),
BIT(Underline),
};
enum Color {
White, Black, Blue, Green, Red, Brown, Magenta, Orange,
Yellow, LightGreen, Cyan, LightCyan, LightBlue, Pink, Gray, LightGray,
Default = 99,
ColorCap,
};
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' });
}
static inline void styleStrip(struct Cat *cat, const char *str) {
struct Style style = StyleDefault;
while (*str) {
size_t len = styleParse(&style, &str);
catf(cat, "%.*s", (int)len, str);
str += len;
}
}
enum { None, Debug, Network, IDCap = 256 };
extern char *idNames[IDCap];
extern enum Color idColors[IDCap];
extern uint idNext;
static inline uint idFind(const char *name) {
for (uint id = 0; id < idNext; ++id) {
if (!strcmp(idNames[id], name)) return id;
}
return None;
}
static inline uint idFor(const char *name) {
uint id = idFind(name);
if (id) return id;
if (idNext == IDCap) return Network;
idNames[idNext] = strdup(name);
idColors[idNext] = Default;
if (!idNames[idNext]) err(EX_OSERR, "strdup");
return idNext++;
}
extern uint32_t hashInit;
extern uint32_t hashBound;
static inline enum Color hash(const char *str) {
if (hashBound < Blue) return Default;
if (*str == '~') str++;
uint32_t hash = hashInit;
for (; *str; ++str) {
hash = (hash << 5) | (hash >> 27);
hash ^= *str;
hash *= 0x27220A95;
}
return Blue + hash % (hashBound + 1 - Blue);
}
extern struct Network {
char *name;
uint userLen;
uint hostLen;
char *chanTypes;
char *prefixes;
char *prefixModes;
char *listModes;
char *paramModes;
char *setParamModes;
char *channelModes;
char excepts;
char invex;
} network;
#define ENUM_CAP \
X("causal.agency/consumer", CapConsumer) \
X("chghost", CapChghost) \
X("extended-join", CapExtendedJoin) \
X("invite-notify", CapInviteNotify) \
X("multi-prefix", CapMultiPrefix) \
X("sasl", CapSASL) \
X("server-time", CapServerTime) \
X("setname", CapSetname) \
X("userhost-in-names", CapUserhostInNames)
enum Cap {
#define X(name, id) BIT(id),
ENUM_CAP
#undef X
};
extern struct Self {
bool debug;
bool kiosk;
bool restricted;
size_t pos;
enum Cap caps;
char *plain;
char *join;
char *nick;
char *user;
char *host;
enum Color color;
char *quit;
} self;
static inline void set(char **field, const char *value) {
free(*field);
*field = strdup(value);
if (!*field) err(EX_OSERR, "strdup");
}
#define ENUM_TAG \
X("causal.agency/pos", TagPos) \
X("time", TagTime)
enum Tag {
#define X(name, id) id,
ENUM_TAG
#undef X
TagCap,
};
enum { ParamCap = 254 };
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 ircPrintCert(void);
void ircRecv(void);
void ircSend(const char *ptr, size_t len);
void ircFormat(const char *format, ...)
__attribute__((format(printf, 1, 2)));
void ircClose(void);
extern uint execID;
extern int execPipe[2];
extern int utilPipe[2];
enum { UtilCap = 16 };
struct Util {
uint argc;
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);
void commandCompleteAdd(void);
enum Heat { Ice, Cold, Warm, Hot };
enum { TimeCap = 64 };
extern struct Time {
bool enable;
const char *format;
int width;
} uiTime;
extern struct Util uiNotifyUtil;
void uiInitEarly(void);
void uiInitLate(void);
void uiShow(void);
void uiHide(void);
void uiDraw(void);
void uiShowID(uint id);
void uiShowNum(uint num);
void uiMoveID(uint id, uint num);
void uiCloseID(uint id);
void uiCloseNum(uint id);
void uiRead(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)));
void uiLoad(const char *name);
int uiSave(const char *name);
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
);
enum Edit {
EditHead,
EditTail,
EditPrev,
EditNext,
EditPrevWord,
EditNextWord,
EditDeleteHead,
EditDeleteTail,
EditDeletePrev,
EditDeleteNext,
EditDeletePrevWord,
EditDeleteNextWord,
EditPaste,
EditTranspose,
EditCollapse,
EditInsert,
EditComplete,
EditExpand,
EditEnter,
};
void edit(uint id, enum Edit op, wchar_t ch);
char *editBuffer(size_t *pos);
void editCompleteAdd(void);
const char *complete(uint id, const char *prefix);
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);
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);
enum { FilterCap = 64 };
extern struct Filter {
enum Heat heat;
char *mask;
char *cmd;
char *chan;
char *mesg;
} 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);
extern bool logEnable;
void logFormat(uint id, const time_t *time, const char *format, ...)
__attribute__((format(printf, 3, 4)));
void logClose(void);
const char *configPath(const char **dirs, const char *path);
const char *dataPath(const char **dirs, const char *path);
FILE *configOpen(const char *path, const char *mode);
FILE *dataOpen(const char *path, const char *mode);
void dataMkdir(const char *path);
int getopt_config(
int argc, char *const *argv,
const char *optstring, const struct option *longopts, int *longindex
);