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// Copyright 2014 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef LIBCHROMEOS_BRILLO_URL_UTILS_H_
#define LIBCHROMEOS_BRILLO_URL_UTILS_H_
#include <string>
#include <vector>
#include <base/compiler_specific.h>
#include <base/macros.h>
#include <brillo/brillo_export.h>
#include <brillo/data_encoding.h>
namespace brillo {
namespace url {
// Appends a subpath to url and delimiting then with '/' if the path doesn't
// end with it already. Also handles URLs with query parameters/fragment.
BRILLO_EXPORT std::string Combine(
const std::string& url,
const std::string& subpath) WARN_UNUSED_RESULT;
BRILLO_EXPORT std::string CombineMultiple(
const std::string& url,
const std::vector<std::string>& parts) WARN_UNUSED_RESULT;
// Removes the query string/fragment from |url| and returns the query string.
// This method actually modifies |url|. So, if you call it on this:
// http://www.test.org/?foo=bar
// it will modify |url| to "http://www.test.org/" and return "?foo=bar"
BRILLO_EXPORT std::string TrimOffQueryString(std::string* url);
// Returns the query string, if available.
// For example, for the following URL:
// http://server.com/path/to/object?k=v&foo=bar#fragment
// Here:
// http://server.com/path/to/object - is the URL of the object,
// ?k=v&foo=bar - URL query string
// #fragment - URL fragment string
// If |remove_fragment| is true, the function returns the query string without
// the fragment. Otherwise the fragment is included as part of the result.
BRILLO_EXPORT std::string GetQueryString(const std::string& url,
bool remove_fragment);
// Parses the query string into a set of key-value pairs.
BRILLO_EXPORT data_encoding::WebParamList GetQueryStringParameters(
const std::string& url);
// Returns a value of the specified query parameter, or empty string if missing.
BRILLO_EXPORT std::string GetQueryStringValue(
const std::string& url,
const std::string& name);
BRILLO_EXPORT std::string GetQueryStringValue(
const data_encoding::WebParamList& params,
const std::string& name);
// Removes the query string and/or a fragment part from URL.
// If |remove_fragment| is specified, the fragment is also removed.
// For example:
// http://server.com/path/to/object?k=v&foo=bar#fragment
// true -> http://server.com/path/to/object
// false -> http://server.com/path/to/object#fragment
BRILLO_EXPORT std::string RemoveQueryString(
const std::string& url,
bool remove_fragment) WARN_UNUSED_RESULT;
// Appends a single query parameter to the URL.
BRILLO_EXPORT std::string AppendQueryParam(
const std::string& url,
const std::string& name,
const std::string& value) WARN_UNUSED_RESULT;
// Appends a list of query parameters to the URL.
BRILLO_EXPORT std::string AppendQueryParams(
const std::string& url,
const data_encoding::WebParamList& params) WARN_UNUSED_RESULT;
// Checks if the URL has query parameters.
BRILLO_EXPORT bool HasQueryString(const std::string& url);
} // namespace url
} // namespace brillo
#endif // LIBCHROMEOS_BRILLO_URL_UTILS_H_
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