org.noear.nami.channel.http.hutool.HttpChannel Maven / Gradle / Ivy
package org.noear.nami.channel.http.hutool;
import cn.hutool.http.HttpResponse;
import org.noear.nami.*;
import org.noear.nami.common.Constants;
import org.noear.nami.Result;
import java.nio.charset.Charset;
/**
* Http 通道
* */
public class HttpChannel implements Channel {
public static final HttpChannel instance = new HttpChannel();
@Override
public Result call(Context ctx) throws Throwable {
pretreatment(ctx);
//0.检测method
boolean is_get = Constants.METHOD_GET.equals(ctx.action);
String url = ctx.url;
//0.尝试重构url
if (is_get && ctx.args.size() > 0) {
StringBuilder sb = new StringBuilder(ctx.url).append("?");
ctx.args.forEach((k, v) -> {
if (v != null) {
sb.append(k).append("=")
.append(HttpUtils.urlEncode(v.toString()))
.append("&");
}
});
url = sb.substring(0, sb.length() - 1);
}
if (ctx.config.getDecoder() == null) {
throw new IllegalArgumentException("There is no suitable decoder");
}
//0.尝试解码器的过滤
ctx.config.getDecoder().pretreatment(ctx);
//0.开始构建http
HttpUtils http = HttpUtils.http(url).headers(ctx.headers);
HttpResponse response = null;
Encoder encoder = ctx.config.getEncoder();
//1.执行并返回
if (is_get || ctx.args.size() == 0) {
response = http.exec(Constants.METHOD_GET);
} else {
if (encoder == null) {
String ct0 = ctx.headers.getOrDefault(Constants.HEADER_CONTENT_TYPE, "");
if (ct0.length() == 0) {
response = http.data(ctx.args).exec(ctx.action);
} else {
encoder = NamiManager.getEncoder(ct0);
}
} else {
encoder = ctx.config.getEncoder();
}
}
if (response == null && encoder != null) {
byte[] bytes = encoder.encode(ctx.body);
if (bytes != null) {
response = http.bodyRaw(bytes, encoder.enctype()).exec(ctx.action);
}
}
if (response == null) {
return null;
}
//2.构建结果
Result result = new Result(response.getStatus(), response.body().getBytes());
//2.1.设置头
response.headers().forEach((k, ary) -> {
if (ary.size() > 0) {
result.headerAdd(k, ary.get(0));
}
});
//2.2.设置字符码
String charset = response.charset();
if (charset != null) {
result.charsetSet(Charset.forName(charset));
}
//3.返回结果
return result;
}
private void pretreatment(Context ctx) {
if (ctx.config.getDecoder() == null) {
String at = ctx.config.getHeader(Constants.HEADER_ACCEPT);
if (at == null) {
at = Constants.CONTENT_TYPE_JSON;
}
ctx.config.setDecoder(NamiManager.getDecoder(at));
}
if (ctx.config.getEncoder() == null) {
String ct = ctx.config.getHeader(Constants.HEADER_CONTENT_TYPE);
if (ct != null) {
ctx.config.setEncoder(NamiManager.getEncoder(ct));
}
}
}
}