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/* ISC license. */
#include <skalibs/bsdsnowflake.h>
#include <errno.h>
#include <string.h>
#include <unistd.h>
#include <skalibs/stat.h>
#include <skalibs/types.h>
#include <skalibs/buffer.h>
#include <skalibs/strerr.h>
#include <skalibs/stralloc.h>
#include <skalibs/tai.h>
#include <skalibs/djbunix.h>
#include <skalibs/unix-timed.h>
#include <tipidee/log.h>
#include <tipidee/util.h>
#include <tipidee/response.h>
#include "tipideed-internal.h"
void response_error_early (tipidee_rql const *rql, unsigned int status, char const *reason, char const *text, uint32_t options)
{
tain deadline ;
tipidee_response_error_nofile_g(buffer_1, rql, status, reason, text, g.rhdr, g.rhdrn, options & 1 || !g.cont) ;
tain_add_g(&deadline, &g.writetto) ;
if (!buffer_timed_flush_g(buffer_1, &deadline))
strerr_diefu1sys(111, "write to stdout") ;
}
void response_error_early_and_exit (tipidee_rql const *rql, unsigned int status, char const *reason, char const *text)
{
response_error_early(rql, status, reason, text, 1) ;
log_and_exit(1) ;
}
void response_error (tipidee_rql const *rql, char const *docroot, unsigned int status, uint32_t options)
{
tain deadline ;
tipidee_defaulttext dt ;
char const *file ;
size_t salen = g.sa.len ;
if (sarealpath(&g.sa, docroot) == -1)
{
if (errno != ENOENT) strerr_diefu2sys(111, "realpath ", docroot) ;
else goto nofile ;
}
if (!stralloc_0(&g.sa)) strerr_diefu1sys(111, "build response") ;
if (strncmp(g.sa.s + salen, g.sa.s, g.cwdlen) || g.sa.s[salen + g.cwdlen] != '/')
strerr_dief4x(102, "layout error: ", "docroot ", docroot, " points outside of the server's root") ;
file = tipidee_conf_get_errorfile(&g.conf, g.sa.s + salen + g.cwdlen + 1, status) ;
g.sa.len = salen ;
if (!tipidee_util_defaulttext(status, &dt))
{
char fmt[UINT_FMT] ;
fmt[uint_fmt(fmt, status)] = 0 ;
strerr_dief2x(101, "can't happen: unknown response code ", fmt) ;
}
if (file)
{
int fd ;
if (sarealpath(&g.sa, file) == -1 || !stralloc_0(&g.sa))
strerr_diefu2sys(111, "realpath ", file) ;
if (strncmp(g.sa.s + salen, g.sa.s, g.cwdlen) || g.sa.s[salen + g.cwdlen] != '/')
strerr_dief4x(102, "layout error: ", "custom response file ", file, " points outside of the server's root") ;
fd = open_read(g.sa.s + salen + g.cwdlen + 1) ;
g.sa.len = salen ;
if (fd == -1) strerr_warnwu3sys("open ", "custom response file ", file) ;
else
{
struct stat st ;
if (fstat(fd, &st) == -1)
{
fd_close(fd) ;
strerr_warnwu3sys("stat ", "custom response file ", file) ;
}
else if (!S_ISREG(st.st_mode))
{
fd_close(fd) ;
strerr_warnw3x("custom response file ", file, " is not a regular file") ;
}
else
{
tipidee_response_file_g(buffer_1, rql, status, dt.reason, &st, tipidee_conf_get_content_type(&g.conf, g.sa.s + salen + g.cwdlen + 1), g.rhdr, g.rhdrn, options) ;
tipidee_log_answer(g.logv, rql, status, st.st_size) ;
send_file(fd, st.st_size, g.sa.s + salen + g.cwdlen + 1) ;
fd_close(fd) ;
return ;
}
}
}
nofile:
tipidee_response_error_nofile_g(buffer_1, rql, status, dt.reason, dt.text, g.rhdr, g.rhdrn, options & 1 || !g.cont) ;
tipidee_log_answer(g.logv, rql, status, 0) ;
tain_add_g(&deadline, &g.writetto) ;
if (!buffer_timed_flush_g(buffer_1, &deadline))
strerr_diefu1sys(111, "write to stdout") ;
}
void response_error_and_exit (tipidee_rql const *rql, char const *docroot, unsigned int status)
{
response_error(rql, docroot, status, 1) ;
log_and_exit(0) ;
}
void response_error_and_die (tipidee_rql const *rql, int e, char const *docroot, unsigned int status, char const *const *v, unsigned int n, uint32_t options)
{
int serr = errno ;
response_error(rql, docroot, status, options | 1) ;
errno = serr ;
if (options & 1) strerr_dievsys(e, v, n) ;
else strerr_diev(e, v, n) ;
}
void exit_405_ (tipidee_rql const *rql, uint32_t options)
{
tain deadline ;
tipidee_response_status(buffer_1, rql, 405, "Method Not Allowed") ;
tipidee_response_header_writeall_g(buffer_1, g.rhdr, g.rhdrn, 1) ;
buffer_putsnoflush(buffer_1, "Allow: GET, HEAD") ;
if (options & 1) buffer_putsnoflush(buffer_1, ", POST") ;
buffer_putnoflush(buffer_1, "\r\n\r\n", 4) ;
if (!(options & 2)) tipidee_log_answer(g.logv, rql, 405, 0) ;
tain_add_g(&deadline, &g.writetto) ;
if (!buffer_timed_flush_g(buffer_1, &deadline))
strerr_diefu1sys(111, "write to stdout") ;
log_and_exit(0) ;
}
void respond_30x (tipidee_rql const *rql, tipidee_redirection const *rd)
{
static unsigned int const status[4] = { 307, 308, 302, 301 } ;
static char const *const reason[4] = { "Temporary Redirect", "Permanent Redirect", "Found", "Moved Permanently" } ;
tain deadline ;
tipidee_response_status(buffer_1, rql, status[rd->type], reason[rd->type]) ;
tipidee_response_header_writeall_g(buffer_1, g.rhdr, g.rhdrn, 0) ;
buffer_putsnoflush(buffer_1, "Content-Length: 0\r\nLocation: ") ;
buffer_putsnoflush(buffer_1, rd->location) ;
if (rd->sub) buffer_putsnoflush(buffer_1, rd->sub) ;
buffer_putnoflush(buffer_1, "\r\n\r\n", 4) ;
tipidee_log_answer(g.logv, rql, status[rd->type], 0) ;
tain_add_g(&deadline, &g.writetto) ;
if (!buffer_timed_flush_g(buffer_1, &deadline))
strerr_diefu1sys(111, "write to stdout") ;
}
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