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xdebug_stack.c
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xdebug_stack.c
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/*
+----------------------------------------------------------------------+
| Xdebug |
+----------------------------------------------------------------------+
| Copyright (c) 2002-2017 Derick Rethans |
+----------------------------------------------------------------------+
| This source file is subject to version 1.0 of the Xdebug license, |
| that is bundled with this package in the file LICENSE, and is |
| available at through the world-wide-web at |
| http://xdebug.derickrethans.nl/license.php |
| If you did not receive a copy of the Xdebug license and are unable |
| to obtain it through the world-wide-web, please send a note to |
| xdebug@derickrethans.nl so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Derick Rethans <derick@xdebug.org> |
+----------------------------------------------------------------------+
*/
#include "php_xdebug.h"
#include "xdebug_private.h"
#include "xdebug_code_coverage.h"
#include "xdebug_com.h"
#include "xdebug_compat.h"
#include "xdebug_monitor.h"
#include "xdebug_profiler.h"
#include "xdebug_stack.h"
#include "xdebug_str.h"
#include "xdebug_superglobals.h"
#include "xdebug_var.h"
#include "ext/standard/html.h"
#include "ext/standard/php_smart_string.h"
#include "main/php_ini.h"
ZEND_EXTERN_MODULE_GLOBALS(xdebug)
static char* text_formats[11] = {
"\n",
"%s: %s in %s on line %d\n",
"\nCall Stack:\n",
"%10.4F %10ld %3d. %s(",
"'%s'",
") %s:%d\n",
"\n\nVariables in local scope (#%d):\n",
"\n",
" $%s = %s\n",
" $%s = *uninitialized*\n",
"SCREAM: Error suppression ignored for\n"
};
static char* ansi_formats[11] = {
"\n",
"[1m[31m%s[0m: %s[22m in [31m%s[0m on line [32m%d[0m[22m\n",
"\n[1mCall Stack:[22m\n",
"%10.4F %10ld %3d. %s(",
"'%s'",
") %s:%d\n",
"\n\nVariables in local scope (#%d):\n",
"\n",
" $%s = %s\n",
" $%s = *uninitialized*\n",
"[1m[31mSCREAM[0m: Error suppression ignored for\n"
};
static char* html_formats[13] = {
"<br />\n<font size='1'><table class='xdebug-error xe-%s%s' dir='ltr' border='1' cellspacing='0' cellpadding='1'>\n",
"<tr><th align='left' bgcolor='#f57900' colspan=\"5\"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> %s: %s in %s on line <i>%d</i></th></tr>\n",
"<tr><th align='left' bgcolor='#e9b96e' colspan='5'>Call Stack</th></tr>\n<tr><th align='center' bgcolor='#eeeeec'>#</th><th align='left' bgcolor='#eeeeec'>Time</th><th align='left' bgcolor='#eeeeec'>Memory</th><th align='left' bgcolor='#eeeeec'>Function</th><th align='left' bgcolor='#eeeeec'>Location</th></tr>\n",
"<tr><td bgcolor='#eeeeec' align='center'>%d</td><td bgcolor='#eeeeec' align='center'>%.4F</td><td bgcolor='#eeeeec' align='right'>%ld</td><td bgcolor='#eeeeec'>%s( ",
"<font color='#00bb00'>'%s'</font>",
" )</td><td title='%s' bgcolor='#eeeeec'>%s<b>:</b>%d</td></tr>\n",
"<tr><th align='left' colspan='5' bgcolor='#e9b96e'>Variables in local scope (#%d)</th></tr>\n",
"</table></font>\n",
"<tr><td colspan='2' align='right' bgcolor='#eeeeec' valign='top'><pre>$%s =</pre></td><td colspan='3' bgcolor='#eeeeec'>%s</td></tr>\n",
"<tr><td colspan='2' align='right' bgcolor='#eeeeec' valign='top'><pre>$%s =</pre></td><td colspan='3' bgcolor='#eeeeec' valign='top'><i>Undefined</i></td></tr>\n",
" )</td><td title='%s' bgcolor='#eeeeec'><a style='color: black' href='%s'>%s<b>:</b>%d</a></td></tr>\n",
"<tr><th align='left' bgcolor='#f57900' colspan=\"5\"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> %s: %s in <a style='color: black' href='%s'>%s</a> on line <i>%d</i></th></tr>\n",
"<tr><th align='left' bgcolor='#f57900' colspan=\"5\"><span style='background-color: #cc0000; color: #fce94f; font-size: x-large;'>( ! )</span> SCREAM: Error suppression ignored for</th></tr>\n"
};
static char** select_formats(int html TSRMLS_DC) {
if (html) {
return html_formats;
}
else if ((XG(cli_color) == 1 && xdebug_is_output_tty(TSRMLS_C)) || (XG(cli_color) == 2)) {
return ansi_formats;
}
else {
return text_formats;
}
}
static void dump_used_var_with_contents(void *htmlq, xdebug_hash_element* he, void *argument)
{
int html = *(int *)htmlq;
int len;
zval zvar;
char *contents;
char *name = (char*) he->ptr;
HashTable *tmp_ht;
char **formats;
xdebug_str *str = (xdebug_str *) argument;
TSRMLS_FETCH();
if (!he->ptr) {
return;
}
/* Bail out on $this and $GLOBALS */
if (strcmp(name, "this") == 0 || strcmp(name, "GLOBALS") == 0) {
return;
}
#if PHP_VERSION_ID >= 70100
if (!(ZEND_CALL_INFO(EG(current_execute_data)) & ZEND_CALL_HAS_SYMBOL_TABLE)) {
#else
if (!EG(current_execute_data)->symbol_table) {
#endif
zend_rebuild_symbol_table(TSRMLS_C);
}
tmp_ht = XG(active_symbol_table);
{
zend_execute_data *ex = EG(current_execute_data);
while (ex && (!ex->func || !ZEND_USER_CODE(ex->func->type))) {
ex = ex->prev_execute_data;
}
if (ex) {
XG(active_execute_data) = ex;
XG(active_symbol_table) = ex->symbol_table;
}
}
xdebug_get_php_symbol(&zvar, name TSRMLS_CC);
XG(active_symbol_table) = tmp_ht;
formats = select_formats(PG(html_errors) TSRMLS_CC);
if (Z_TYPE(zvar) == IS_UNDEF) {
xdebug_str_add(str, xdebug_sprintf(formats[9], name), 1);
return;
}
if (html) {
contents = xdebug_get_zval_value_fancy(NULL, &zvar, &len, 0, NULL TSRMLS_CC);
} else {
contents = xdebug_get_zval_value(&zvar, 0, NULL);
}
if (contents) {
xdebug_str_add(str, xdebug_sprintf(formats[8], name, contents), 1);
} else {
xdebug_str_add(str, xdebug_sprintf(formats[9], name), 1);
}
xdfree(contents);
zval_ptr_dtor_nogc(&zvar);
}
void xdebug_log_stack(const char *error_type_str, char *buffer, const char *error_filename, const int error_lineno TSRMLS_DC)
{
xdebug_llist_element *le;
function_stack_entry *i;
char *tmp_log_message;
tmp_log_message = xdebug_sprintf( "PHP %s: %s in %s on line %d", error_type_str, buffer, error_filename, error_lineno);
php_log_err(tmp_log_message TSRMLS_CC);
xdfree(tmp_log_message);
if (XG(stack) && XG(stack)->size) {
php_log_err("PHP Stack trace:" TSRMLS_CC);
for (le = XDEBUG_LLIST_HEAD(XG(stack)); le != NULL; le = XDEBUG_LLIST_NEXT(le))
{
int c = 0; /* Comma flag */
unsigned int j = 0; /* Counter */
char *tmp_name;
xdebug_str log_buffer = XDEBUG_STR_INITIALIZER;
int variadic_opened = 0;
i = XDEBUG_LLIST_VALP(le);
tmp_name = xdebug_show_fname(i->function, 0, 0 TSRMLS_CC);
xdebug_str_add(&log_buffer, xdebug_sprintf("PHP %3d. %s(", i->level, tmp_name), 1);
xdfree(tmp_name);
/* Printing vars */
for (j = 0; j < i->varc; j++) {
char *tmp_varname, *tmp_value;
if (c) {
xdebug_str_addl(&log_buffer, ", ", 2, 0);
} else {
c = 1;
}
if (
(i->var[j].is_variadic && XG(collect_params) != 5)
) {
xdebug_str_add(&log_buffer, "...", 0);
variadic_opened = 1;
}
tmp_varname = i->var[j].name ? xdebug_sprintf("$%s = ", i->var[j].name) : xdstrdup("");
xdebug_str_add(&log_buffer, tmp_varname, 0);
xdfree(tmp_varname);
if (i->var[j].is_variadic) {
xdebug_str_add(&log_buffer, "variadic(", 0);
c = 0;
continue;
}
if (i->var[j].addr) {
tmp_value = xdebug_get_zval_value(i->var[j].addr, 0, NULL);
xdebug_str_add(&log_buffer, tmp_value, 0);
xdfree(tmp_value);
} else {
xdebug_str_addl(&log_buffer, "*uninitialized*", 15, 0);
}
}
if (variadic_opened) {
xdebug_str_add(&log_buffer, ")", 0);
}
xdebug_str_add(&log_buffer, xdebug_sprintf(") %s:%d", i->filename, i->lineno), 1);
php_log_err(log_buffer.d TSRMLS_CC);
xdebug_str_free(&log_buffer);
}
}
}
void xdebug_append_error_head(xdebug_str *str, int html, char *error_type_str TSRMLS_DC)
{
char **formats = select_formats(html TSRMLS_CC);
if (html) {
xdebug_str_add(str, xdebug_sprintf(formats[0], error_type_str, XG(in_at) ? " xe-scream" : ""), 1);
if (XG(in_at)) {
xdebug_str_add(str, formats[12], 0);
}
} else {
xdebug_str_add(str, formats[0], 0);
if (XG(in_at)) {
xdebug_str_add(str, formats[10], 0);
}
}
}
void xdebug_append_error_description(xdebug_str *str, int html, const char *error_type_str, char *buffer, const char *error_filename, const int error_lineno TSRMLS_DC)
{
char **formats = select_formats(html TSRMLS_CC);
char *escaped;
if (html) {
zend_string *tmp;
char *first_closing = strchr(buffer, ']');
/* We do need to escape HTML entities here, as HTML chars could be in
* the error message. However, PHP in some circumstances also adds an
* HTML link to a manual page. That bit, we don't need to escape. So
* this bit of code finds the portion that doesn't need escaping, adds
* it to a tmp string, and then adds an HTML escaped string for the
* rest of the original buffer. */
if (first_closing && strstr(buffer, "() [<a href=") != NULL) {
smart_string special_escaped = { 0, 0, 0 };
*first_closing = '\0';
first_closing++;
smart_string_appends(&special_escaped, buffer);
tmp = php_escape_html_entities((unsigned char *) first_closing, strlen(first_closing), 0, 0, NULL TSRMLS_CC);
smart_string_appends(&special_escaped, tmp->val);
zend_string_free(tmp);
smart_string_0(&special_escaped);
escaped = estrdup(special_escaped.c);
smart_string_free(&special_escaped);
} else if (strncmp(buffer, "assert()", 8) == 0) {
/* Also don't escape if we're in an assert, as things are already
* escaped. It's all nice and consistent ey? */
escaped = estrdup(buffer);
} else {
tmp = php_escape_html_entities((unsigned char *) buffer, strlen(buffer), 0, 0, NULL TSRMLS_CC);
escaped = estrdup(tmp->val);
zend_string_free(tmp);
}
} else {
escaped = estrdup(buffer);
}
if (strlen(XG(file_link_format)) > 0 && html) {
char *file_link;
xdebug_format_file_link(&file_link, error_filename, error_lineno TSRMLS_CC);
xdebug_str_add(str, xdebug_sprintf(formats[11], error_type_str, escaped, file_link, error_filename, error_lineno), 1);
xdfree(file_link);
} else {
xdebug_str_add(str, xdebug_sprintf(formats[1], error_type_str, escaped, error_filename, error_lineno), 1);
}
efree(escaped);
}
static void add_single_value(xdebug_str *str, zval *zv, int html, int collecton_level TSRMLS_DC)
{
char *tmp_value, *tmp_fancy_value, *tmp_fancy_synop_value, *tmp_serialized;
int len;
size_t newlen;
if (html) {
switch (collecton_level) {
case 1: /* synopsis */
tmp_fancy_synop_value = xdebug_get_zval_synopsis_fancy("", zv, &len, 0, NULL TSRMLS_CC);
xdebug_str_add(str, xdebug_sprintf("<span>%s</span>", tmp_fancy_synop_value), 1);
xdfree(tmp_fancy_synop_value);
break;
case 2: /* synopsis + full in tooltip */
tmp_value = xdebug_get_zval_value(zv, 0, NULL);
tmp_fancy_value = xdebug_xmlize(tmp_value, strlen(tmp_value), &newlen);
tmp_fancy_synop_value = xdebug_get_zval_synopsis_fancy("", zv, &len, 0, NULL TSRMLS_CC);
xdebug_str_add(str, xdebug_sprintf("<span title='%s'>%s</span>", tmp_fancy_value, tmp_fancy_synop_value), 1);
xdfree(tmp_value);
efree(tmp_fancy_value);
xdfree(tmp_fancy_synop_value);
break;
case 3: /* full */
case 4: /* full (with var_name) */
default:
tmp_value = xdebug_get_zval_value(zv, 0, NULL);
tmp_fancy_value = xdebug_xmlize(tmp_value, strlen(tmp_value), &newlen);
xdebug_str_add(str, xdebug_sprintf("<span>%s</span>", tmp_fancy_value), 1);
xdfree(tmp_value);
efree(tmp_fancy_value);
break;
case 5: { /* serialized */
tmp_serialized = xdebug_get_zval_value_serialized(zv, 0, NULL TSRMLS_CC);
xdebug_str_add(str, xdebug_sprintf("<span>%s</span>", tmp_serialized), 1);
xdfree(tmp_serialized);
} break;
}
} else {
switch (collecton_level) {
case 1: /* synopsis */
case 2:
tmp_value = xdebug_get_zval_synopsis(zv, 0, NULL);
break;
case 3: /* full */
case 4: /* full (with var_name) */
default:
tmp_value = xdebug_get_zval_value(zv, 0, NULL);
break;
case 5: /* serialized */
tmp_value = xdebug_get_zval_value_serialized(zv, 0, NULL TSRMLS_CC);
break;
}
if (tmp_value) {
xdebug_str_add(str, xdebug_sprintf("%s", tmp_value), 1);
xdfree(tmp_value);
} else {
xdebug_str_addl(str, "???", 3, 0);
}
}
}
void xdebug_append_printable_stack(xdebug_str *str, int html TSRMLS_DC)
{
xdebug_llist_element *le;
function_stack_entry *i;
int printed_frames = 0;
char **formats = select_formats(html TSRMLS_CC);
if (XG(stack) && XG(stack)->size) {
i = XDEBUG_LLIST_VALP(XDEBUG_LLIST_HEAD(XG(stack)));
xdebug_str_add(str, formats[2], 0);
for (le = XDEBUG_LLIST_HEAD(XG(stack)); le != NULL; le = XDEBUG_LLIST_NEXT(le))
{
int c = 0; /* Comma flag */
unsigned int j = 0; /* Counter */
char *tmp_name;
int variadic_opened = 0;
i = XDEBUG_LLIST_VALP(le);
tmp_name = xdebug_show_fname(i->function, html, 0 TSRMLS_CC);
if (html) {
xdebug_str_add(str, xdebug_sprintf(formats[3], i->level, i->time - XG(start_time), i->memory, tmp_name), 1);
} else {
xdebug_str_add(str, xdebug_sprintf(formats[3], i->time - XG(start_time), i->memory, i->level, tmp_name), 1);
}
xdfree(tmp_name);
/* Printing vars */
for (j = 0; j < i->varc; j++) {
if (c) {
xdebug_str_addl(str, ", ", 2, 0);
} else {
c = 1;
}
if (
(i->var[j].is_variadic && i->var[j].addr)
) {
xdebug_str_add(str, "...", 0);
}
if (i->var[j].name && XG(collect_params) == 4) {
if (html) {
xdebug_str_add(str, xdebug_sprintf("<span>$%s = </span>", i->var[j].name), 1);
} else {
xdebug_str_add(str, xdebug_sprintf("$%s = ", i->var[j].name), 1);
}
}
if (!variadic_opened && i->var[j].is_variadic && i->var[j].addr) {
if (html) {
xdebug_str_add(str, "<i>variadic</i>(", 0);
} else {
xdebug_str_add(str, "variadic(", 0);
}
c = 0;
variadic_opened = 1;
continue;
}
if (i->var[j].addr) {
add_single_value(str, i->var[j].addr, html, XG(collect_params) TSRMLS_CC);
} else {
xdebug_str_addl(str, "???", 3, 0);
}
}
if (variadic_opened) {
xdebug_str_add(str, ")", 0);
}
if (i->include_filename) {
xdebug_str_add(str, xdebug_sprintf(formats[4], i->include_filename), 1);
}
if (html) {
char *formatted_filename;
xdebug_format_filename(&formatted_filename, XG(filename_format), "...%s%n", i->filename);
if (strlen(XG(file_link_format)) > 0) {
char *file_link;
xdebug_format_file_link(&file_link, i->filename, i->lineno TSRMLS_CC);
xdebug_str_add(str, xdebug_sprintf(formats[10], i->filename, file_link, formatted_filename, i->lineno), 1);
xdfree(file_link);
} else {
xdebug_str_add(str, xdebug_sprintf(formats[5], i->filename, formatted_filename, i->lineno), 1);
}
xdfree(formatted_filename);
} else {
xdebug_str_add(str, xdebug_sprintf(formats[5], i->filename, i->lineno), 1);
}
printed_frames++;
if (XG(max_stack_frames) > 0 && printed_frames >= XG(max_stack_frames)) {
break;
}
}
if (XG(dump_globals) && !(XG(dump_once) && XG(dumped))) {
char *tmp = xdebug_get_printable_superglobals(html TSRMLS_CC);
if (tmp) {
xdebug_str_add(str, tmp, 1);
}
XG(dumped) = 1;
}
if (XG(show_local_vars) && XG(stack) && XDEBUG_LLIST_TAIL(XG(stack))) {
int scope_nr = XG(stack)->size;
i = XDEBUG_LLIST_VALP(XDEBUG_LLIST_TAIL(XG(stack)));
if (i->user_defined == XDEBUG_INTERNAL && XDEBUG_LLIST_PREV(XDEBUG_LLIST_TAIL(XG(stack))) && XDEBUG_LLIST_VALP(XDEBUG_LLIST_PREV(XDEBUG_LLIST_TAIL(XG(stack))))) {
i = XDEBUG_LLIST_VALP(XDEBUG_LLIST_PREV(XDEBUG_LLIST_TAIL(XG(stack))));
scope_nr--;
}
if (i->used_vars && i->used_vars->size) {
xdebug_hash *tmp_hash;
xdebug_str_add(str, xdebug_sprintf(formats[6], scope_nr), 1);
tmp_hash = xdebug_used_var_hash_from_llist(i->used_vars);
xdebug_hash_apply_with_argument(tmp_hash, (void*) &html, dump_used_var_with_contents, (void *) str);
xdebug_hash_destroy(tmp_hash);
}
}
}
}
void xdebug_append_error_footer(xdebug_str *str, int html TSRMLS_DC)
{
char **formats = select_formats(html TSRMLS_CC);
xdebug_str_add(str, formats[7], 0);
}
static char *get_printable_stack(int html, int error_type, char *buffer, const char *error_filename, const int error_lineno, int include_decription TSRMLS_DC)
{
char *prepend_string;
char *append_string;
char *error_type_str = xdebug_error_type(error_type);
char *error_type_str_simple = xdebug_error_type_simple(error_type);
xdebug_str str = XDEBUG_STR_INITIALIZER;
prepend_string = INI_STR("error_prepend_string");
append_string = INI_STR("error_append_string");
xdebug_str_add(&str, prepend_string ? prepend_string : "", 0);
xdebug_append_error_head(&str, html, error_type_str_simple TSRMLS_CC);
if (include_decription) {
xdebug_append_error_description(&str, html, error_type_str, buffer, error_filename, error_lineno TSRMLS_CC);
}
xdebug_append_printable_stack(&str, html TSRMLS_CC);
xdebug_append_error_footer(&str, html TSRMLS_CC);
xdebug_str_add(&str, append_string ? append_string : "", 0);
xdfree(error_type_str);
xdfree(error_type_str_simple);
return str.d;
}
void xdebug_init_debugger(TSRMLS_D)
{
xdebug_open_log(TSRMLS_C);
if (XG(remote_connect_back)) {
zval *remote_addr = NULL;
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Checking remote connect back address.\n");
if (XG(remote_addr_header) && XG(remote_addr_header)[0]) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Checking user configured header '%s'.\n", XG(remote_addr_header));
remote_addr = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), XG(remote_addr_header), HASH_KEY_STRLEN(XG(remote_addr_header)));
}
if (!remote_addr) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Checking header 'HTTP_X_FORWARDED_FOR'.\n");
remote_addr = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "HTTP_X_FORWARDED_FOR", HASH_KEY_SIZEOF("HTTP_X_FORWARDED_FOR"));
}
if (!remote_addr) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Checking header 'REMOTE_ADDR'.\n");
remote_addr = zend_hash_str_find(Z_ARRVAL(PG(http_globals)[TRACK_VARS_SERVER]), "REMOTE_ADDR", HASH_KEY_SIZEOF("REMOTE_ADDR"));
}
if (remote_addr && strstr(Z_STRVAL_P(remote_addr), "://")) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "W: Invalid remote address provided containing URI spec '%s'.\n", Z_STRVAL_P(remote_addr));
remote_addr = NULL;
}
if (remote_addr) {
/* Use first IP according to RFC 7239 */
char *cp = strchr(Z_STRVAL_P(remote_addr), ',');
if (cp) {
*cp = '\0';
}
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Remote address found, connecting to %s:%ld.\n", Z_STRVAL_P(remote_addr), (long int) XG(remote_port));
XG(context).socket = xdebug_create_socket(Z_STRVAL_P(remote_addr), XG(remote_port), XG(remote_connect_timeout) TSRMLS_CC);
} else {
XDEBUG_LOG_PRINT(XG(remote_log_file), "W: Remote address not found, connecting to configured address/port: %s:%ld. :-|\n", XG(remote_host), (long int) XG(remote_port));
XG(context).socket = xdebug_create_socket(XG(remote_host), XG(remote_port), XG(remote_connect_timeout) TSRMLS_CC);
}
} else {
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Connecting to configured address/port: %s:%ld.\n", XG(remote_host), (long int) XG(remote_port));
XG(context).socket = xdebug_create_socket(XG(remote_host), XG(remote_port), XG(remote_connect_timeout) TSRMLS_CC);
}
if (XG(context).socket >= 0) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "I: Connected to client. :-)\n");
XG(remote_enabled) = 0;
/* Get handler from mode */
XG(context).handler = xdebug_handler_get(XG(remote_handler));
if (!XG(context).handler) {
zend_error(E_WARNING, "The remote debug handler '%s' is not supported.", XG(remote_handler));
XDEBUG_LOG_PRINT(XG(remote_log_file), "E: The remote debug handler '%s' is not supported. :-(\n", XG(remote_handler));
} else if (!XG(context).handler->remote_init(&(XG(context)), XDEBUG_REQ)) {
/* The request could not be started, ignore it then */
XDEBUG_LOG_PRINT(XG(remote_log_file), "E: The debug session could not be started. :-(\n");
} else {
/* All is well, turn off script time outs */
zend_string *ini_name = zend_string_init("max_execution_time", sizeof("max_execution_time") - 1, 0);
zend_string *ini_val = zend_string_init("0", sizeof("0") - 1, 0);
zend_alter_ini_entry(ini_name, ini_val, PHP_INI_SYSTEM, PHP_INI_STAGE_ACTIVATE);
zend_string_release(ini_val);
zend_string_release(ini_name);
XG(remote_enabled) = 1;
}
} else if (XG(context).socket == -1) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "E: Could not connect to client. :-(\n");
} else if (XG(context).socket == -2) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "E: Time-out connecting to client (Waited: " ZEND_LONG_FMT " ms). :-(\n", XG(remote_connect_timeout));
} else if (XG(context).socket == -3) {
XDEBUG_LOG_PRINT(XG(remote_log_file), "E: No permission connecting to client. This could be SELinux related. :-(\n");
}
if (!XG(remote_enabled)) {
xdebug_close_log(TSRMLS_C);
}
}
void xdebug_do_jit(TSRMLS_D)
{
if (!XG(remote_enabled) && XG(remote_enable) && (XG(remote_mode) == XDEBUG_JIT)) {
xdebug_init_debugger(TSRMLS_C);
}
}
static void php_output_error(const char *error TSRMLS_DC)
{
#ifdef PHP_DISPLAY_ERRORS_STDERR
if (PG(display_errors) == PHP_DISPLAY_ERRORS_STDERR) {
fputs(error, stderr);
fflush(stderr);
return;
}
#endif
php_printf("%s", error);
}
char *xdebug_strip_php_stack_trace(char *buffer)
{
char *tmp_buf, *p;
if (strncmp(buffer, "Uncaught ", 9) == 0) {
/* find first new line */
p = strchr(buffer, '\n');
if (!p) {
p = buffer + strlen(buffer);
} else {
/* find the last " in ", which isn't great and might not work... but in most cases it will */
p = xdebug_strrstr(buffer, " in ");
if (!p) {
p = buffer + strlen(buffer);
}
}
/* Create new buffer */
tmp_buf = calloc(p - buffer + 1, 1);
strncpy(tmp_buf, buffer, p - buffer);
return tmp_buf;
}
return NULL;
}
char *xdebug_handle_stack_trace(int type, char *error_type_str, const char *error_filename, const uint error_lineno, char *buffer TSRMLS_DC)
{
char *printable_stack;
char *tmp_buf;
/* We need to see if we have an uncaught exception fatal error now */
if (type == E_ERROR && ((tmp_buf = xdebug_strip_php_stack_trace(buffer)) != NULL)) {
xdebug_str str = XDEBUG_STR_INITIALIZER;
/* Append error */
xdebug_append_error_head(&str, PG(html_errors), "uncaught-exception" TSRMLS_CC);
xdebug_append_error_description(&str, PG(html_errors), error_type_str, tmp_buf, error_filename, error_lineno TSRMLS_CC);
xdebug_append_printable_stack(&str, PG(html_errors) TSRMLS_CC);
if (XG(last_exception_trace)) {
xdebug_str_add(&str, XG(last_exception_trace), 0);
}
xdebug_append_error_footer(&str, PG(html_errors) TSRMLS_CC);
free(tmp_buf);
printable_stack = str.d;
} else {
printable_stack = get_printable_stack(PG(html_errors), type, buffer, error_filename, error_lineno, 1 TSRMLS_CC);
}
return printable_stack;
}
/* Error callback for formatting stack traces */
void xdebug_error_cb(int type, const char *error_filename, const uint error_lineno, const char *format, va_list args)
{
char *buffer, *error_type_str;
int buffer_len;
xdebug_brk_info *extra_brk_info = NULL;
error_handling_t error_handling;
zend_class_entry *exception_class;
TSRMLS_FETCH();
buffer_len = vspprintf(&buffer, PG(log_errors_max_len), format, args);
error_type_str = xdebug_error_type(type);
/* Store last error message for error_get_last() */
if (PG(last_error_message)) {
free(PG(last_error_message));
}
if (PG(last_error_file)) {
free(PG(last_error_file));
}
PG(last_error_type) = type;
PG(last_error_message) = strdup(buffer);
PG(last_error_file) = strdup(error_filename);
PG(last_error_lineno) = error_lineno;
error_handling = EG(error_handling);
exception_class = EG(exception_class);
/* according to error handling mode, suppress error, throw exception or show it */
if (error_handling != EH_NORMAL
) {
switch (type) {
case E_CORE_ERROR:
case E_COMPILE_ERROR:
case E_PARSE:
/* fatal errors are real errors and cannot be made exceptions */
break;
case E_STRICT:
/* for the sake of BC to old damaged code */
break;
case E_NOTICE:
case E_USER_NOTICE:
/* notices are no errors and are not treated as such like E_WARNINGS */
break;
default:
/* throw an exception if we are in EH_THROW mode
* but DO NOT overwrite a pending exception
*/
if (error_handling == EH_THROW && !EG(exception)) {
zend_throw_error_exception(exception_class, buffer, 0, type TSRMLS_CC);
}
efree(buffer);
xdfree(error_type_str);
return;
}
}
if ((EG(error_reporting | XG(force_error_reporting))) & type) {
/* Log to logger */
if (PG(log_errors)) {
#ifdef PHP_WIN32
if (type==E_CORE_ERROR || type==E_CORE_WARNING) {
MessageBox(NULL, buffer, error_type_str, MB_OK);
}
#endif
xdebug_log_stack(error_type_str, buffer, error_filename, error_lineno TSRMLS_CC);
if (XG(dump_globals) && !(XG(dump_once) && XG(dumped))) {
char *printable_stack = xdebug_get_printable_superglobals(0 TSRMLS_CC);
if (printable_stack) {
int pc;
xdebug_arg *parts = (xdebug_arg*) xdmalloc(sizeof(xdebug_arg));
xdebug_arg_init(parts);
xdebug_explode("\n", printable_stack, parts, -1);
for (pc = 0; pc < parts->c; pc++) {
char *tmp_line = xdebug_sprintf("PHP %s", parts->args[pc]);
php_log_err(tmp_line);
xdfree(tmp_line);
}
xdebug_arg_dtor(parts);
xdfree(printable_stack);
php_log_err("PHP ");
}
}
}
/* Display errors */
if ((PG(display_errors) || XG(force_display_errors)) && !PG(during_request_startup)) {
char *printable_stack;
printable_stack = xdebug_handle_stack_trace(type, error_type_str, error_filename, error_lineno, buffer TSRMLS_CC);
if (XG(do_collect_errors) && (type != E_ERROR) && (type != E_COMPILE_ERROR) && (type != E_USER_ERROR)) {
xdebug_llist_insert_next(XG(collected_errors), XDEBUG_LLIST_TAIL(XG(collected_errors)), printable_stack);
} else {
php_output_error(printable_stack TSRMLS_CC);
xdfree(printable_stack);
}
} else if (XG(do_collect_errors)) {
char *printable_stack;
printable_stack = get_printable_stack(PG(html_errors), type, buffer, error_filename, error_lineno, 1 TSRMLS_CC);
xdebug_llist_insert_next(XG(collected_errors), XDEBUG_LLIST_TAIL(XG(collected_errors)), printable_stack);
}
}
/* Start JIT if requested and not yet enabled */
xdebug_do_jit(TSRMLS_C);
if (XG(remote_enabled) && XG(breakpoints_allowed)) {
/* Send notification with warning/notice/error information */
if (XG(context).send_notifications && !XG(context).inhibit_notifications) {
if (!XG(context).handler->remote_notification(&(XG(context)), error_filename, error_lineno, type, error_type_str, buffer)) {
XG(remote_enabled) = 0;
}
}
/* Check for the pseudo exceptions to allow breakpoints on PHP error statuses */
if (
xdebug_hash_find(XG(context).exception_breakpoints, error_type_str, strlen(error_type_str), (void *) &extra_brk_info) ||
xdebug_hash_find(XG(context).exception_breakpoints, "*", 1, (void *) &extra_brk_info)
) {
if (xdebug_handle_hit_value(extra_brk_info)) {
char *type_str = xdebug_sprintf("%ld", type);
if (!XG(context).handler->remote_breakpoint(&(XG(context)), XG(stack), (char *) error_filename, error_lineno, XDEBUG_BREAK, error_type_str, type_str, buffer)) {
XG(remote_enabled) = 0;
}
xdfree(type_str);
}
}
}
xdfree(error_type_str);
if (type & XG(halt_level) & XDEBUG_ALLOWED_HALT_LEVELS) {
type = E_USER_ERROR;
}
/* Bail out if we can't recover */
switch (type) {
case E_CORE_ERROR:
if (!php_get_module_initialized()) {
/* bad error in module startup - no way we can live with this */
exit(-2);
}
case E_ERROR:
case E_RECOVERABLE_ERROR:
case E_PARSE:
case E_COMPILE_ERROR:
case E_USER_ERROR:
EG(exit_status) = 255;
if (php_get_module_initialized()) {
if (!PG(display_errors) &&
!SG(headers_sent) &&
SG(sapi_headers).http_response_code == 200
) {
sapi_header_line ctr = { 0, 0, 0 };
ctr.line = "HTTP/1.0 500 Internal Server Error";
ctr.line_len = sizeof("HTTP/1.0 500 Internal Server Error") - 1;
sapi_header_op(SAPI_HEADER_REPLACE, &ctr TSRMLS_CC);
}
/* the parser would return 1 (failure), we can bail out nicely */
if (type != E_PARSE) {
/* restore memory limit */
zend_set_memory_limit(PG(memory_limit));
zend_objects_store_mark_destructed(&EG(objects_store) TSRMLS_CC);
zend_bailout();
return;
}
}
break;
}
#if PHP_VERSION_ID >= 70200
if (PG(track_errors) && EG(active)) {
#else
if (PG(track_errors) && EG(valid_symbol_table)) {
#endif
zval tmp;
ZVAL_STRINGL(&tmp, buffer, buffer_len);
if (EG(current_execute_data)) {
if (zend_set_local_var_str("php_errormsg", sizeof("php_errormsg")-1, &tmp, 0) == FAILURE) {
zval_ptr_dtor(&tmp);
}
} else {
zend_hash_str_update(&EG(symbol_table), "php_errormsg", sizeof("php_errormsg"), &tmp);
}
}
efree(buffer);
}
/* {{{ proto void xdebug_print_function_stack([string message [, int options])
Displays a stack trace */
PHP_FUNCTION(xdebug_print_function_stack)
{
char *message = NULL;
size_t message_len;
function_stack_entry *i;
char *tmp;
zend_long options = 0;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|sl", &message, &message_len, &options) == FAILURE) {
return;
}
i = xdebug_get_stack_frame(0 TSRMLS_CC);
if (message) {
tmp = get_printable_stack(PG(html_errors), 0, message, i->filename, i->lineno, !(options & XDEBUG_STACK_NO_DESC) TSRMLS_CC);
} else {
tmp = get_printable_stack(PG(html_errors), 0, "user triggered", i->filename, i->lineno, !(options & XDEBUG_STACK_NO_DESC) TSRMLS_CC);
}
php_printf("%s", tmp);
xdfree(tmp);
}
/* }}} */
/* {{{ proto array xdebug_get_formatted_function_stack()
Displays a stack trace */
PHP_FUNCTION(xdebug_get_formatted_function_stack)
{
function_stack_entry *i;
char *tmp;
i = xdebug_get_stack_frame(0 TSRMLS_CC);
tmp = get_printable_stack(PG(html_errors), 0, "user triggered", i->filename, i->lineno, 1 TSRMLS_CC);
RETVAL_STRING(tmp);
xdfree(tmp);
}
/* }}} */
/* {{{ proto string xdebug_call_class()
Returns the name of the calling class */
PHP_FUNCTION(xdebug_call_class)
{
function_stack_entry *i;
zend_long depth = 2;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &depth) == FAILURE) {
return;
}
i = xdebug_get_stack_frame(depth TSRMLS_CC);
if (i) {
if (i->function.class) {
RETURN_STRING(i->function.class);
} else {
RETURN_FALSE;
}
} else {
return;
}
}
/* }}} */
/* {{{ proto string xdebug_call_function()
Returns the function name from which the current function was called from. */
PHP_FUNCTION(xdebug_call_function)
{
function_stack_entry *i;
zend_long depth = 2;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &depth) == FAILURE) {
return;
}
i = xdebug_get_stack_frame(depth TSRMLS_CC);
if (i) {
if (i->function.function) {
RETURN_STRING(i->function.function);
} else {
RETURN_FALSE;
}
} else {
return;
}
}
/* }}} */
/* {{{ proto int xdebug_call_line()
Returns the line number where the current function was called from. */
PHP_FUNCTION(xdebug_call_line)
{
function_stack_entry *i;
zend_long depth = 2;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &depth) == FAILURE) {
return;
}
i = xdebug_get_stack_frame(depth TSRMLS_CC);
if (i) {
RETURN_LONG(i->lineno);
} else {
return;
}
}
/* }}} */
/* {{{ proto string xdebug_call_file()
Returns the filename where the current function was called from. */
PHP_FUNCTION(xdebug_call_file)
{
function_stack_entry *i;
zend_long depth = 2;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &depth) == FAILURE) {
return;
}
i = xdebug_get_stack_frame(depth TSRMLS_CC);
if (i) {
RETURN_STRING(i->filename);
} else {
return;
}
}
/* }}} */
static int find_line_number_for_current_execute_point(zend_execute_data *edata TSRMLS_DC)
{
zend_execute_data *ptr = edata;