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path: root/Libraries/LibWeb/URLEncoder.cpp
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/*
 * Copyright (c) 2020, the SerenityOS developers.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <AK/StringBuilder.h>
#include <LibWeb/URLEncoder.h>

namespace Web {

String url_encode(const StringView& view)
{
    StringBuilder builder;

    for (char c : view) {
        if (c == ' ') {
            builder.append('+');
        } else if (c == '*' || c == '-' || c == '.' || (c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || c == '_' || (c >= 'a' && c <= 'z')) {
            builder.append(c);
        } else {
            builder.appendf("%%%02X", c);
        }
    }

    return builder.to_string();
}

String url_encode(const Vector<URLQueryParam>& pairs)
{
    StringBuilder builder;
    for (size_t i = 0; i < pairs.size(); ++i) {
        builder.append(url_encode(pairs[i].name));
        builder.append('=');
        builder.append(url_encode(pairs[i].value));
        if (i != pairs.size() - 1)
            builder.append('&');
    }
    return builder.to_string();
}

}