VPN-Check: update

2020-08-24 11:50:39 +02:00
parent a5bc964a81
commit 6ad1e603c0
6 changed files with 2027 additions and 0 deletions
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+/**
+ * vim: set ts=4 :
+ * =============================================================================
+ * sm-json
+ * Provides a pure SourcePawn implementation of JSON encoding and decoding.
+ * https://github.com/clugg/sm-json
+ *
+ * sm-json (C)2018 James Dickens. (clug)
+ * SourceMod (C)2004-2008 AlliedModders LLC.  All rights reserved.
+ * =============================================================================
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License, version 3.0, 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, see <http://www.gnu.org/licenses/>.
+ *
+ * As a special exception, AlliedModders LLC gives you permission to link the
+ * code of this program (as well as its derivative works) to "Half-Life 2," the
+ * "Source Engine," the "SourcePawn JIT," and any Game MODs that run on software
+ * by the Valve Corporation.  You must obey the GNU General Public License in
+ * all respects for all other code used.  Additionally, AlliedModders LLC grants
+ * this exception to all derivative works.  AlliedModders LLC defines further
+ * exceptions, found in LICENSE.txt (as of this writing, version JULY-31-2007),
+ * or <http://www.sourcemod.net/license.php>.
+ */
+
+#if defined _json_encode_helpers_included
+ #endinput
+#endif
+#define _json_encode_helpers_included
+
+#include <string>
+
+/**
+ * @section Calculating buffer sizes for JSON cells.
+ */
+
+/**
+ * Calculates the maximum buffer length required to
+ * store the JSON cell representation of a string.
+ *
+ * @param maxlen    The string's current length or buffer size.
+ * @returns         Maximum buffer length.
+ */
+stock int json_cell_string_size(int maxlen) {
+    return (maxlen * 2) + 3;  // * 2 for potential escaping, + 2 for surrounding quotes + NULL
+}
+
+/**
+ * Calculates the maximum buffer length required to
+ * store the JSON cell representation of an int.
+ *
+ * @param input    The int.
+ * @returns         Maximum buffer length.
+ */
+stock int json_cell_int_size(int input) {
+    if (input == 0) {
+        return 2;  // "0" + NULL
+    }
+
+    return ((input < 0) ? 1 : 0) + RoundToFloor(Logarithm(FloatAbs(float(input)), 10.0)) + 2;  // neg sign + number of digits + NULL
+}
+
+/**
+ * Calculates the maximum buffer length required to
+ * store the JSON cell representation of a float.
+ *
+ * @returns         Maximum buffer length.
+ */
+stock int json_cell_float_size() {
+    return JSON_FLOAT_BUFFER_SIZE;  // fixed-length
+}
+
+/**
+ * Calculates the maximum buffer length required to
+ * store the JSON cell representation of a bool.
+ *
+ * @returns         Maximum buffer length.
+ */
+stock int json_cell_bool_size() {
+    return 6;  // "true|false" + NULL
+}
+
+/**
+ * Calculates the maximum buffer length required to
+ * store the JSON cell representation of null.
+ *
+ * @returns         Maximum buffer length.
+ */
+stock int json_cell_null_size() {
+    return 5;  // "null" + NULL
+}
+
+/**
+ * @section Generating JSON cells.
+ */
+
+/**
+ * Generates the JSON cell representation of a string.
+ *
+ * @param input     Value to generate output for.
+ * @param output    String buffer to store output.
+ * @param maxlen    Maximum size of string buffer.
+ */
+stock void json_cell_string(const char[] input, char[] output, int maxlen) {
+    strcopy(output, maxlen, "?");  // add dummy char at start so we can replace it with a quote later
+    StrCat(output, maxlen, input);  // add input string to output
+    json_escape_string(output, maxlen);  // run basic escapes on the string
+
+    // surround string with quotations
+    output[0] = '"';
+    StrCat(output, maxlen, "\"");
+}
+
+/**
+ * Generates the JSON cell representation of an int.
+ *
+ * @param input     Value to generate output for.
+ * @param output    String buffer to store output.
+ * @param maxlen    Maximum size of string buffer.
+ */
+stock void json_cell_int(int input, char[] output, int maxlen) {
+    IntToString(input, output, maxlen);
+}
+
+/**
+ * Generates the JSON cell representation of a float.
+ *
+ * @param input     Value to generate output for.
+ * @param output    String buffer to store output.
+ * @param maxlen    Maximum size of string buffer.
+ */
+stock void json_cell_float(float input, char[] output, int maxlen) {
+    FloatToString(input, output, maxlen);
+    // trim trailing 0s from float output
+    int last_char = strlen(output) - 1;
+    while (output[last_char] == '0' && output[last_char - 1] != '.') {
+        output[last_char--] = '\0';
+    }
+}
+
+/**
+ * Generates the JSON cell representation of a bool.
+ *
+ * @param input     Value to generate output for.
+ * @param output    String buffer to store output.
+ * @param maxlen    Maximum size of string buffer.
+ */
+stock void json_cell_bool(bool input, char[] output, int maxlen) {
+    strcopy(output, maxlen, (input) ? "true" : "false");
+}
+
+/**
+ * Generates the JSON cell representation of null.
+ *
+ * @param output    String buffer to store output.
+ * @param maxlen    Maximum size of string buffer.
+ */
+stock void json_cell_null(char[] output, int maxlen) {
+    strcopy(output, maxlen, "null");
+}