package com.iailab.framework.common.util.http;
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import cn.hutool.core.codec.Base64;
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import cn.hutool.core.map.TableMap;
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import cn.hutool.core.net.url.UrlBuilder;
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import cn.hutool.core.util.ReflectUtil;
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import cn.hutool.core.util.StrUtil;
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import org.springframework.util.StringUtils;
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import org.springframework.web.util.UriComponents;
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import org.springframework.web.util.UriComponentsBuilder;
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import javax.servlet.http.HttpServletRequest;
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import java.net.URI;
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import java.nio.charset.Charset;
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import java.util.Map;
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/**
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* HTTP 工具类
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*
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* @author iailab
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*/
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public class HttpUtils {
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@SuppressWarnings("unchecked")
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public static String replaceUrlQuery(String url, String key, String value) {
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UrlBuilder builder = UrlBuilder.of(url, Charset.defaultCharset());
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// 先移除
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TableMap<CharSequence, CharSequence> query = (TableMap<CharSequence, CharSequence>)
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ReflectUtil.getFieldValue(builder.getQuery(), "query");
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query.remove(key);
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// 后添加
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builder.addQuery(key, value);
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return builder.build();
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}
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private String append(String base, Map<String, ?> query, boolean fragment) {
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return append(base, query, null, fragment);
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}
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/**
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* 拼接 URL
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*
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* copy from Spring Security OAuth2 的 AuthorizationEndpoint 类的 append 方法
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*
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* @param base 基础 URL
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* @param query 查询参数
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* @param keys query 的 key,对应的原本的 key 的映射。例如说 query 里有个 key 是 xx,实际它的 key 是 extra_xx,则通过 keys 里添加这个映射
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* @param fragment URL 的 fragment,即拼接到 # 中
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* @return 拼接后的 URL
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*/
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public static String append(String base, Map<String, ?> query, Map<String, String> keys, boolean fragment) {
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UriComponentsBuilder template = UriComponentsBuilder.newInstance();
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UriComponentsBuilder builder = UriComponentsBuilder.fromUriString(base);
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URI redirectUri;
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try {
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// assume it's encoded to start with (if it came in over the wire)
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redirectUri = builder.build(true).toUri();
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} catch (Exception e) {
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// ... but allow client registrations to contain hard-coded non-encoded values
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redirectUri = builder.build().toUri();
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builder = UriComponentsBuilder.fromUri(redirectUri);
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}
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template.scheme(redirectUri.getScheme()).port(redirectUri.getPort()).host(redirectUri.getHost())
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.userInfo(redirectUri.getUserInfo()).path(redirectUri.getPath());
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if (fragment) {
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StringBuilder values = new StringBuilder();
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if (redirectUri.getFragment() != null) {
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String append = redirectUri.getFragment();
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values.append(append);
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}
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for (String key : query.keySet()) {
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if (values.length() > 0) {
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values.append("&");
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}
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String name = key;
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if (keys != null && keys.containsKey(key)) {
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name = keys.get(key);
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}
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values.append(name).append("={").append(key).append("}");
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}
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if (values.length() > 0) {
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template.fragment(values.toString());
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}
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UriComponents encoded = template.build().expand(query).encode();
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builder.fragment(encoded.getFragment());
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} else {
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for (String key : query.keySet()) {
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String name = key;
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if (keys != null && keys.containsKey(key)) {
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name = keys.get(key);
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}
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template.queryParam(name, "{" + key + "}");
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}
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template.fragment(redirectUri.getFragment());
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UriComponents encoded = template.build().expand(query).encode();
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builder.query(encoded.getQuery());
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}
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return builder.build().toUriString();
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}
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public static String[] obtainBasicAuthorization(HttpServletRequest request) {
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String clientId;
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String clientSecret;
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// 先从 Header 中获取
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String authorization = request.getHeader("Authorization");
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authorization = StrUtil.subAfter(authorization, "Basic ", true);
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if (StringUtils.hasText(authorization)) {
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authorization = Base64.decodeStr(authorization);
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clientId = StrUtil.subBefore(authorization, ":", false);
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clientSecret = StrUtil.subAfter(authorization, ":", false);
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// 再从 Param 中获取
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} else {
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clientId = request.getParameter("client_id");
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clientSecret = request.getParameter("client_secret");
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}
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// 如果两者非空,则返回
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if (StrUtil.isNotEmpty(clientId) && StrUtil.isNotEmpty(clientSecret)) {
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return new String[]{clientId, clientSecret};
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}
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return null;
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}
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}
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