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/**
* vimb - a webkit based vim like browser.
*
* Copyright (C) 2012-2018 Daniel Carl
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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, see http://www.gnu.org/licenses/.
*/
#include <glib.h>
#include <string.h>
#include <unistd.h>
#include "../config.h"
#include "ext-util.h"
/**
* Evaluates given string as script and return if this call succeed or not.
*/
gboolean ext_util_js_eval(JSContextRef ctx, const char *script, JSValueRef *result)
{
JSStringRef js_str;
JSValueRef exc = NULL, res = NULL;
js_str = JSStringCreateWithUTF8CString(script);
res = JSEvaluateScript(ctx, js_str, JSContextGetGlobalObject(ctx), NULL, 0, &exc);
JSStringRelease(js_str);
if (exc) {
*result = exc;
return FALSE;
}
*result = res;
return TRUE;
}
/**
* Creates a temporary file with given content.
*
* Upon success, and if file is non-NULL, the actual file path used is
* returned in file. This string should be freed with g_free() when not
* needed any longer.
*/
gboolean ext_util_create_tmp_file(const char *content, char **file)
{
int fp;
ssize_t bytes, len;
fp = g_file_open_tmp(PROJECT "-XXXXXX", file, NULL);
if (fp == -1) {
g_critical("Could not create temp file %s", *file);
g_free(*file);
return FALSE;
}
len = strlen(content);
/* write content into temporary file */
bytes = write(fp, content, len);
if (bytes < len) {
close(fp);
unlink(*file);
g_critical("Could not write temp file %s", *file);
g_free(*file);
return FALSE;
}
close(fp);
return TRUE;
}
/**
* Returns a new allocates string for given value reference.
* String must be freed if not used anymore.
*/
char* ext_util_js_ref_to_string(JSContextRef ctx, JSValueRef ref)
{
char *string;
size_t len;
JSStringRef str_ref;
g_return_val_if_fail(ref != NULL, NULL);
str_ref = JSValueToStringCopy(ctx, ref, NULL);
len = JSStringGetMaximumUTF8CStringSize(str_ref);
string = g_new0(char, len);
JSStringGetUTF8CString(str_ref, string, len);
JSStringRelease(str_ref);
return string;
}
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