From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 vmime-master/src/vmime/utility/urlUtils.cpp | 133 ++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 vmime-master/src/vmime/utility/urlUtils.cpp

(limited to 'vmime-master/src/vmime/utility/urlUtils.cpp')

diff --git a/vmime-master/src/vmime/utility/urlUtils.cpp b/vmime-master/src/vmime/utility/urlUtils.cpp
new file mode 100644
index 0000000..cf51a50
--- /dev/null
+++ b/vmime-master/src/vmime/utility/urlUtils.cpp
@@ -0,0 +1,133 @@
+//
+// VMime library (http://www.vmime.org)
+// Copyright (C) 2002 Vincent Richard <vincent@vmime.org>
+//
+// 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, write to the Free Software Foundation, Inc.,
+// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+//
+// Linking this library statically or dynamically with other modules is making
+// a combined work based on this library.  Thus, the terms and conditions of
+// the GNU General Public License cover the whole combination.
+//
+
+#include "vmime/utility/urlUtils.hpp"
+#include "vmime/parserHelpers.hpp"
+
+
+namespace vmime {
+namespace utility {
+
+
+const string urlUtils::encode(const string& s) {
+
+	static const string RESERVED_CHARS =
+		/* reserved */ "$&+,/:;=?@"
+		/* unsafe */   "<>#%{}[]|\\^\"~`";
+
+	string result;
+	result.reserve(s.length());
+
+	for (string::const_iterator it = s.begin() ; it != s.end() ; ++it) {
+
+		const char c = *it;
+
+		if (parserHelpers::isPrint(c) && !parserHelpers::isSpace(c) &&
+		    static_cast <unsigned char>(c) <= 127 &&
+		    RESERVED_CHARS.find(c) == string::npos) {
+
+			result += c;
+
+		} else {
+
+			char hex[4];
+			const unsigned char k = static_cast <unsigned char>(c);
+
+			hex[0] = '%';
+			hex[1] = "0123456789ABCDEF"[k / 16];
+			hex[2] = "0123456789ABCDEF"[k % 16];
+			hex[3] = 0;
+
+			result += hex;
+		}
+	}
+
+	return result;
+}
+
+
+const string urlUtils::decode(const string& s) {
+
+	string result;
+	result.reserve(s.length());
+
+	for (string::const_iterator it = s.begin() ; it != s.end() ; ) {
+
+		const char c = *it;
+
+		switch (c) {
+
+			case '%': {
+
+				++it;  // skip '%'
+
+				const char_t p = (it != s.end() ? *(it++) : 0);
+				const char_t q = (it != s.end() ? *(it++) : 0);
+
+				unsigned int r = 0;
+
+				switch (p) {
+
+					case 0: r = '%'; break;
+					case 'a': case 'A': r = 10; break;
+					case 'b': case 'B': r = 11; break;
+					case 'c': case 'C': r = 12; break;
+					case 'd': case 'D': r = 13; break;
+					case 'e': case 'E': r = 14; break;
+					case 'f': case 'F': r = 15; break;
+					default: r = p - '0'; break;
+				}
+
+				if (q != 0) {
+
+					r *= 16;
+
+					switch (q) {
+
+						case 'a': case 'A': r += 10; break;
+						case 'b': case 'B': r += 11; break;
+						case 'c': case 'C': r += 12; break;
+						case 'd': case 'D': r += 13; break;
+						case 'e': case 'E': r += 14; break;
+						case 'f': case 'F': r += 15; break;
+						default: r += q - '0'; break;
+					}
+				}
+
+				result += static_cast <char>(r);
+				break;
+			}
+			default:
+
+				result += c;
+				++it;
+				break;
+		}
+	}
+
+	return result;
+}
+
+
+} // utility
+} // vmime
-- 
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