server/src/orderfile.c

353 lines
9.6 KiB
C

#include <platform.h>
#include "orderfile.h"
#include "kernel/calendar.h"
#include "kernel/faction.h"
#include "kernel/messages.h"
#include "kernel/order.h"
#include "kernel/unit.h"
#include "util/base36.h"
#include "util/message.h"
#include "util/language.h"
#include "util/log.h"
#include "util/filereader.h"
#include "util/param.h"
#include "util/parser.h"
#include "util/password.h"
#include "util/order_parser.h"
#include <assert.h>
#include <errno.h>
#include <stdio.h>
#include <string.h>
static void begin_orders(unit *u) {
if ((u->flags & UFL_ORDERS) == 0) {
order **ordp;
/* alle wiederholbaren, langen befehle werden gesichert: */
u->flags |= UFL_ORDERS;
u->old_orders = u->orders;
ordp = &u->old_orders;
while (*ordp) {
order *ord = *ordp;
keyword_t kwd = getkeyword(ord);
if (!is_repeated(kwd)) {
*ordp = ord->next;
ord->next = NULL;
free_order(ord);
}
else {
ordp = &ord->next;
}
}
}
else {
free_orders(&u->orders);
}
u->orders = NULL;
}
static void unitorders(input *in, faction *f)
{
int i;
unit *u;
assert(f);
i = getid();
u = findunit(i);
if (u && u->faction == f) {
order **ordp;
begin_orders(u);
ordp = &u->orders;
for (;;) {
const char *s;
/* Erst wenn wir sicher sind, dass kein Befehl
* eingegeben wurde, checken wir, ob nun eine neue
* Einheit oder ein neuer Spieler drankommt */
s = in->getbuf(in->data);
if (s == NULL)
break;
if (s[0]) {
if (s[0] != '@') {
char token[64];
const char *stok = s;
stok = parse_token(&stok, token, sizeof(token));
if (stok) {
bool quit = false;
param_t param = findparam(stok, u->faction->locale);
switch (param) {
case P_UNIT:
case P_REGION:
quit = true;
break;
case P_FACTION:
case P_NEXT:
case P_GAMENAME:
/* these terminate the orders, so we apply extra checking */
if (strlen(stok) >= 3) {
quit = true;
break;
}
else {
quit = false;
}
break;
default:
break;
}
if (quit) {
break;
}
}
}
/* Nun wird der Befehl erzeut und eingehaengt */
*ordp = parse_order(s, u->faction->locale);
if (*ordp) {
ordp = &(*ordp)->next;
}
else {
ADDMSG(&f->msgs, msg_message("parse_error", "unit command", u, s));
}
}
}
}
}
static faction *factionorders(void)
{
int fid = getid();
faction *f = findfaction(fid);
if (f != NULL && (f->flags & FFL_NPC) == 0) {
char token[PASSWORD_MAXSIZE];
const char *pass = gettoken(token, sizeof(token));
if (!checkpasswd(f, (const char *)pass)) {
log_debug("Invalid password for faction %s", itoa36(fid));
ADDMSG(&f->msgs, msg_message("wrongpasswd", "password", pass));
return 0;
}
/* Die Partei hat sich zumindest gemeldet, so dass sie noch
* nicht als untaetig gilt */
f->lastorders = turn;
}
else {
log_debug("orders for invalid faction %s", itoa36(fid));
}
return f;
}
int read_orders(input *in)
{
const char *b;
int nfactions = 0;
struct faction *f = NULL;
const struct locale *lang = default_locale;
/* TODO: recognize UTF8 BOM */
b = in->getbuf(in->data);
/* Auffinden der ersten Partei, und danach abarbeiten bis zur letzten
* Partei */
while (b) {
char token[128];
param_t p;
const char *s;
init_tokens_str(b);
s = gettoken(token, sizeof(token));
p = findparam_block(s, lang, true);
switch (p) {
case P_GAMENAME:
case P_FACTION:
f = factionorders();
if (f) {
lang = f->locale;
++nfactions;
}
b = in->getbuf(in->data);
break;
/* in factionorders wird nur eine zeile gelesen:
* diejenige mit dem passwort. Die befehle der units
* werden geloescht, und die Partei wird als aktiv
* vermerkt. */
case P_UNIT:
if (f) {
unitorders(in, f);
do {
b = in->getbuf(in->data);
if (!b) {
break;
}
init_tokens_str(b);
s = gettoken(token, sizeof(token));
p = (s && s[0] != '@') ? findparam(s, lang) : NOPARAM;
} while ((p != P_UNIT || !f) && p != P_FACTION && p != P_NEXT
&& p != P_GAMENAME);
}
break;
/* Falls in unitorders() abgebrochen wird, steht dort entweder eine neue
* Partei, eine neue Einheit oder das File-Ende. Das switch() wird erneut
* durchlaufen, und die entsprechende Funktion aufgerufen. Man darf buf
* auf alle Faelle nicht ueberschreiben! Bei allen anderen Eintraegen hier
* muss buf erneut gefaellt werden, da die betreffende Information in nur
* einer Zeile steht, und nun die naechste gelesen werden muss.
*/
case P_NEXT:
f = NULL;
lang = default_locale;
b = in->getbuf(in->data);
break;
default:
b = in->getbuf(in->data);
break;
}
}
log_info("done reading orders for %d factions", nfactions);
return 0;
}
typedef struct parser_state {
unit *u;
faction *f;
order **next_order;
} parser_state;
static void handle_faction(void *userData, int no, const char *password) {
parser_state *state = (parser_state *)userData;
faction * f = state->f = findfaction(no);
if (!f) {
log_debug("orders for unknown faction %s", itoa36(no));
}
else {
if (checkpasswd(f, password)) {
f->lastorders = turn;
}
else {
log_debug("invalid password for faction %s", itoa36(no));
ADDMSG(&f->msgs, msg_message("wrongpasswd", "password", password));
}
state->u = NULL;
state->next_order = NULL;
}
}
static void handle_unit(void *userData, int no) {
parser_state *state = (parser_state *)userData;
unit * u = findunit(no);
state->u = NULL;
if (!u) {
/* TODO: error message */
}
else if (u->faction != state->f) {
/* TODO: error message */
}
else {
state->u = u;
begin_orders(u);
state->next_order = &u->orders;
}
}
static void handle_order(void *userData, const char *str) {
parser_state *state = (parser_state *)userData;
const char * tok, *input = str;
char buffer[64];
const struct locale *lang;
param_t p;
faction * f = state->f;
lang = f ? f->locale : default_locale;
tok = parse_token(&input, buffer, sizeof(buffer));
p = findparam(tok, lang);
if (p == P_FACTION || p == P_GAMENAME) {
tok = parse_token(&input, buffer, sizeof(buffer));
if (tok) {
int no = atoi36(tok);
tok = parse_token(&input, buffer, sizeof(buffer));
handle_faction(userData, no, tok);
}
else {
/* TODO: log_error() */
}
}
else if (p == P_UNIT) {
tok = parse_token(&input, buffer, sizeof(buffer));
if (tok) {
int no = atoi36(tok);
handle_unit(userData, no);
}
}
else if (p == P_NEXT) {
state->f = NULL;
state->u = NULL;
state->next_order = NULL;
}
else if (p == P_REGION) {
state->u = NULL;
state->next_order = NULL;
}
else if (state->u) {
unit * u = state->u;
order * ord = parse_order(str, lang);
if (ord) {
*state->next_order = ord;
state->next_order = &ord->next;
}
else {
ADDMSG(&u->faction->msgs, msg_message("parse_error", "unit command", u, str));
}
}
}
int parseorders(FILE *F)
{
char buf[4096];
int done = 0, err = 0;
OP_Parser parser;
parser_state state = { NULL, NULL };
parser = OP_ParserCreate();
if (!parser) {
/* TODO: error message */
return errno;
}
OP_SetOrderHandler(parser, handle_order);
OP_SetUserData(parser, &state);
while (!done) {
size_t len = (int)fread(buf, 1, sizeof(buf), F);
if (ferror(F)) {
/* TODO: error message */
err = errno;
break;
}
done = feof(F);
if (OP_Parse(parser, buf, len, done) == OP_STATUS_ERROR) {
/* TODO: error message */
err = (int)OP_GetErrorCode(parser);
break;
}
}
OP_ParserFree(parser);
return err;
}