1 files changed, 140 insertions, 0 deletions
diff --git a/src/tipideed/errors.c b/src/tipideed/errors.c
new file mode 100644
index 0000000..9b00f3b
--- /dev/null
+++ b/src/tipideed/errors.c
@@ -0,0 +1,140 @@
+/* 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_plus (tipidee_rql const *rql, unsigned int status, char const *reason, char const *text, tipidee_response_header const *v, uint32_t n, uint32_t options)
+{
+  tain deadline ;
+  tipidee_response_error_nofile_G(buffer_1, rql, status, reason, text, g.rhdr, g.rhdrn, v, n, 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_plus_and_exit (tipidee_rql const *rql, unsigned int status, char const *reason, char const *text, tipidee_response_header const *v, uint32_t n)
+{
+  response_error_early_plus(rql, status, reason, text, v, n, 1) ;
+  log_and_exit(1) ;
+}
+
+void eexit_405 (tipidee_rql const *rql)
+{
+  static tipidee_response_header const allowpost = { .key = "Allow", .value = "GET, HEAD, POST", .options = 0 } ;
+  response_error_early_plus_and_exit(rql, 405, "Method Not Allowed", "Invalid method for the resource.", &allowpost, 1) ;
+}
+
+void response_error_plus (tipidee_rql const *rql, char const *docroot, unsigned int status, tipidee_response_header const *plus, uint32_t plusn, uint32_t options)
+{
+  tain deadline ;
+  tipidee_defaulttext dt ;
+  char const *file = 0 ;
+  size_t pos = translate_path(docroot) ;
+
+  if (pos) file = tipidee_conf_get_errorfile(&g.conf, g.sa.s + pos , status) ;
+  else if (errno == EPERM)
+    strerr_dief4x(102, "layout error: ", "docroot ", docroot, " points outside of the server's root") ;
+  else if (errno != ENOENT)
+    strerr_diefu2sys(111, "translate_path ", docroot) ;
+
+  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)
+  {
+    pos = translate_path(file) ;
+    if (!pos)
+    {
+      if (errno == EPERM)
+        strerr_warnw4x("layout error: ", "custom response file ", file, " points outside of the server's root") ;
+      else
+        strerr_warnwu3sys("translate_path ", "custom response file ", file) ;
+    }
+    else
+    {
+      int fd = open_read(g.sa.s + pos) ;
+      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, st.st_size, tipidee_conf_get_content_type(&g.conf, g.sa.s + pos), g.rhdr, g.rhdrn, options) ;
+          tipidee_response_header_write(buffer_1, plus, plusn) ;
+          tipidee_response_header_end(buffer_1) ;
+          tipidee_log_answer(g.logv, rql, status, st.st_size) ;
+          send_file(fd, st.st_size, g.sa.s + pos) ;
+          fd_close(fd) ;
+          return ;
+        }
+      }
+    }
+  }
+
+  tipidee_response_error_nofile_G(buffer_1, rql, status, dt.reason, dt.text, g.rhdr, g.rhdrn, plus, plusn, 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_plus_and_exit (tipidee_rql const *rql, char const *docroot, unsigned int status, tipidee_response_header const *plus, uint32_t plusn)
+{
+  response_error_plus(rql, docroot, status, plus, plusn, 1) ;
+  log_and_exit(0) ;
+}
+
+void response_error_plus_and_die (tipidee_rql const *rql, int e, char const *docroot, unsigned int status, tipidee_response_header const *plus, uint32_t plusn, char const *const *v, unsigned int n, uint32_t options)
+{
+  int serr = errno ;
+  response_error_plus(rql, docroot, status, plus, plusn, 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, char const *docroot, uint32_t options)
+{
+  tipidee_response_header hd = { .key = "Allow", .value = options & 1 ? "GET, HEAD, POST" : "GET, HEAD", .options = 0 } ;
+  response_error_plus_and_exit(rql, docroot, 405, &hd, 1) ;
+}
+
+void respond_416 (tipidee_rql const *rql, char const *docroot, uint64_t size)
+{
+  char buf[8 + UINT64_FMT] = "bytes */" ;
+  tipidee_response_header cr = { .key = "Content-Range", .value = buf, .options = 0 } ;
+  buf[8 + uint64_fmt(buf + 8, size)] = 0 ;
+  response_error_plus(rql, docroot, 416, &cr, 1, 0) ;
+}