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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Cherokee
*
* Authors:
* Alvaro Lopez Ortega <alvaro@alobbs.com>
*
* Copyright (C) 2001-2011 Alvaro Lopez Ortega
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include "common-internal.h"
#include "error_log.h"
#include "nullable.h"
#include "init.h"
#include "util.h"
static cherokee_logger_writer_t *default_error_writer = NULL;
/* Include the error information */
#include "errors.h"
ret_t
cherokee_error_set_default (cherokee_logger_writer_t *writer)
{
default_error_writer = writer;
return ret_ok;
}
static void
skip_args (va_list ap, const char *prev_string)
{
const char *p = prev_string;
p = strchr (prev_string, '%');
while (p) {
p++;
switch (*p) {
case 's':
va_arg (ap, char *);
break;
case 'd':
va_arg (ap, int);
break;
default:
// LOG_CRITICAL (CHEROKEE_ERROR_ERRORLOG_PARAM, p);
break;
}
p = strchr (p, '%');
}
}
static ret_t
report_error (cherokee_buffer_t *buf)
{
cherokee_logger_writer_t *writer = NULL;
/* 1st Option, the thread variable
*/
writer = LOGGER_WRITER (CHEROKEE_THREAD_PROP_GET (thread_error_writer_ptr));
/* 2nd, the default error logger
*/
if (writer == NULL) {
writer = default_error_writer;
}
/* Last resource: Print it to stderr.
*/
if ((writer == NULL) || (! writer->initialized)) {
fprintf (stderr, "%s\n", buf->buf);
fflush (stderr);
return ret_ok;
}
/* Do logging
*/
if (writer->initialized) {
cherokee_buffer_t *writer_log = NULL;
cherokee_logger_writer_get_buf (writer, &writer_log);
cherokee_buffer_add_buffer (writer_log, buf);
cherokee_logger_writer_flush (writer, true);
cherokee_logger_writer_release_buf (writer);
return ret_ok;
}
return ret_ok;
}
static void
render_python_error (cherokee_error_type_t type,
const char *filename,
int line,
int error_num,
const cherokee_error_t *error,
cherokee_buffer_t *output,
va_list ap)
{
va_list ap_tmp;
cherokee_buffer_t tmp = CHEROKEE_BUF_INIT;
/* Dict: open */
cherokee_buffer_add_char (output, '{');
/* Error type */
cherokee_buffer_add_str (output, "'type': \"");
switch (type) {
case cherokee_err_warning:
cherokee_buffer_add_str (output, "warning");
break;
case cherokee_err_error:
cherokee_buffer_add_str (output, "error");
break;
case cherokee_err_critical:
cherokee_buffer_add_str (output, "critical");
break;
default:
SHOULDNT_HAPPEN;
}
cherokee_buffer_add_str (output, "\", ");
/* Time */
cherokee_buffer_add_str (output, "'time': \"");
cherokee_buf_add_bogonow (output, false);
cherokee_buffer_add_str (output, "\", ");
/* Render the title */
va_copy (ap_tmp, ap);
cherokee_buffer_add_str (output, "'title': \"");
cherokee_buffer_add_va_list (output, error->title, ap_tmp);
cherokee_buffer_add_str (output, "\", ");
skip_args (ap, error->title);
/* File and line*/
cherokee_buffer_add_str (output, "'code': \"");
cherokee_buffer_add_va (output, "%s:%d", filename, line);
cherokee_buffer_add_str (output, "\", ");
/* Error number */
cherokee_buffer_add_str (output, "'error': \"");
cherokee_buffer_add_va (output, "%d", error_num);
cherokee_buffer_add_str (output, "\", ");
/* Description */
if (error->description) {
va_copy (ap_tmp, ap);
cherokee_buffer_clean (&tmp);
cherokee_buffer_add_str (output, "'description': \"");
cherokee_buffer_add_va_list (&tmp, error->description, ap_tmp);
cherokee_buffer_add_escape_html (output, &tmp);
cherokee_buffer_add_str (output, "\", ");
/* ARGS: Skip 'description' */
skip_args (ap, error->description);
}
/* Admin URL */
if (error->admin_url) {
va_copy (ap_tmp, ap);
cherokee_buffer_add_str (output, "'admin_url': \"");
cherokee_buffer_add_va_list (output, error->admin_url, ap_tmp);
cherokee_buffer_add_str (output, "\", ");
/* ARGS: Skip 'admin_url' */
skip_args (ap, error->admin_url);
}
/* Debug information */
if (error->debug) {
va_copy (ap_tmp, ap);
cherokee_buffer_clean (&tmp);
cherokee_buffer_add_str (output, "'debug': \"");
cherokee_buffer_add_va_list (&tmp, error->debug, ap_tmp);
cherokee_buffer_add_escape_html (output, &tmp);
cherokee_buffer_add_str (output, "\", ");
/* ARGS: Skip 'debug' */
skip_args (ap, error->debug);
}
/* Version */
cherokee_buffer_add_str (output, "'version': \"");
cherokee_buffer_add_str (output, PACKAGE_VERSION);
cherokee_buffer_add_str (output, "\", ");
cherokee_buffer_add_str (output, "'compilation_date': \"");
cherokee_buffer_add_str (output, __DATE__ " " __TIME__);
cherokee_buffer_add_str (output, "\", ");
cherokee_buffer_add_str (output, "'configure_args': \"");
cherokee_buffer_clean (&tmp);
cherokee_buffer_add_str (&tmp, CHEROKEE_CONFIG_ARGS);
cherokee_buffer_add_escape_html (output, &tmp);
cherokee_buffer_add_buffer (output, &tmp);
cherokee_buffer_add_str (output, "\", ");
/* Backtrace */
if (error->show_backtrace) {
cherokee_buffer_add_str (output, "'backtrace': \"");
#ifdef BACKTRACES_ENABLED
cherokee_buffer_clean (&tmp);
cherokee_buf_add_backtrace (&tmp, 2, "\\n", "");
cherokee_buffer_add_escape_html (output, &tmp);
#endif
cherokee_buffer_add_str (output, "\", ");
}
/* Let's finish here.. */
if (strcmp (output->buf + output->len - 2, ", ") == 0) {
cherokee_buffer_drop_ending (output, 2);
}
cherokee_buffer_add_str (output, "}\n");
/* Clean up */
cherokee_buffer_mrproper (&tmp);
}
static void
render_human_error (cherokee_error_type_t type,
const char *filename,
int line,
int error_num,
const cherokee_error_t *error,
cherokee_buffer_t *output,
va_list ap)
{
va_list ap_tmp;
UNUSED (error_num);
/* Time */
cherokee_buffer_add_char (output, '[');
cherokee_buf_add_bogonow (output, false);
cherokee_buffer_add_str (output, "] ");
/* Error type */
switch (type) {
case cherokee_err_warning:
cherokee_buffer_add_str (output, "(warning)");
break;
case cherokee_err_error:
cherokee_buffer_add_str (output, "(error)");
break;
case cherokee_err_critical:
cherokee_buffer_add_str (output, "(critical)");
break;
default:
SHOULDNT_HAPPEN;
}
/* Source */
cherokee_buffer_add_va (output, " %s:%d - ", filename, line);
/* Error */
va_copy (ap_tmp, ap);
cherokee_buffer_add_va_list (output, error->title, ap_tmp);
skip_args (ap, error->title);
/* Description */
if (error->description) {
va_copy (ap_tmp, ap);
cherokee_buffer_add_str (output, " | ");
cherokee_buffer_add_va_list (output, error->description, ap_tmp);
cherokee_buffer_add_char (output, '\n');
skip_args (ap, error->title);
}
cherokee_buffer_add_char (output, '\n');
}
static ret_t
render_human_backtrace (const cherokee_error_t *error,
cherokee_buffer_t *output)
{
#ifdef BACKTRACES_ENABLED
if (error->show_backtrace) {
cherokee_buf_add_backtrace (output, 2, "\n", " ");
}
#endif
return ret_ok;
}
static ret_t
render (cherokee_error_type_t type,
const char *filename,
int line,
int error_num,
va_list ap,
cherokee_buffer_t *error_str)
{
const cherokee_error_t *error;
cherokee_boolean_t readable;
/* Get the error information
*/
error = &__cherokee_errors[error_num];
if (unlikely (error->id != error_num)) {
return ret_error;
}
/* Format
*/
if (! NULLB_IS_NULL (cherokee_readable_errors)) {
readable = NULLB_TO_BOOL (cherokee_readable_errors);
} else {
readable = ! cherokee_admin_child;
}
/* Render
*/
if (readable) {
render_human_error (type, filename, line, error_num, error, error_str, ap);
cherokee_buffer_split_lines (error_str, TERMINAL_WIDTH, " ");
render_human_backtrace (error, error_str);
} else {
render_python_error (type, filename, line, error_num, error, error_str, ap);
}
return ret_ok;
}
ret_t
cherokee_error_log (cherokee_error_type_t type,
const char *filename,
int line,
int error_num, ...)
{
va_list ap;
cherokee_buffer_t error_str = CHEROKEE_BUF_INIT;
/* Render the error message
*/
va_start (ap, error_num);
render (type, filename, line, error_num, ap, &error_str);
va_end (ap);
/* Report it
*/
report_error (&error_str);
/* Clean up
*/
cherokee_buffer_mrproper (&error_str);
return ret_ok;
}
ret_t
cherokee_error_errno_log (int errnumber,
cherokee_error_type_t type,
const char *filename,
int line,
int error_num, ...)
{
va_list ap;
const char *errstr;
char err_tmp[ERROR_MAX_BUFSIZE];
cherokee_buffer_t error_str = CHEROKEE_BUF_INIT;
/* Render the error message
*/
va_start (ap, error_num);
render (type, filename, line, error_num, ap, &error_str);
va_end (ap);
/* Replace ${errno}
*/
errstr = cherokee_strerror_r (errnumber, err_tmp, sizeof(err_tmp));
if (errstr == NULL) {
errstr = "unknwon error (?)";
}
cherokee_buffer_replace_string (&error_str, (char *)"${errno}", 8,
(char *) errstr, strlen(errstr));
/* Report it
*/
report_error (&error_str);
/* Clean up
*/
cherokee_buffer_mrproper (&error_str);
return ret_ok;
}
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