io.github.lunasaw.sip.common.utils.SipUtils Maven / Gradle / Ivy
package io.github.lunasaw.sip.common.utils;
import java.nio.charset.Charset;
import javax.sdp.SessionDescription;
import javax.sip.RequestEvent;
import javax.sip.ResponseEvent;
import javax.sip.header.FromHeader;
import javax.sip.header.HeaderAddress;
import javax.sip.header.SubjectHeader;
import javax.sip.header.ToHeader;
import javax.sip.message.Request;
import javax.sip.message.Response;
import org.apache.commons.lang3.RandomUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.util.ObjectUtils;
import com.luna.common.text.StringTools;
import gov.nist.javax.sip.address.AddressImpl;
import gov.nist.javax.sip.address.SipUri;
import gov.nist.javax.sip.message.SIPRequest;
import gov.nist.javax.sip.message.SIPResponse;
import io.github.lunasaw.sip.common.constant.Constant;
import io.github.lunasaw.sip.common.entity.GbSessionDescription;
import io.github.lunasaw.sip.common.entity.RemoteAddressInfo;
import io.github.lunasaw.sip.common.entity.SdpSessionDescription;
import io.github.lunasaw.sip.common.entity.SipTransaction;
/**
* @author luna
*/
public class SipUtils {
public static String getUserIdFromToHeader(Response response) {
ToHeader toHeader = (ToHeader) response.getHeader(ToHeader.NAME);
return getUserIdFromHeader(toHeader);
}
public static String getUserIdFromFromHeader(Response response) {
FromHeader fromHeader = (FromHeader) response.getHeader(FromHeader.NAME);
return getUserIdFromHeader(fromHeader);
}
public static String getUserIdFromToHeader(Request request) {
ToHeader toHeader = (ToHeader)request.getHeader(ToHeader.NAME);
return getUserIdFromHeader(toHeader);
}
public static String getUserIdFromFromHeader(Request request) {
FromHeader fromHeader = (FromHeader)request.getHeader(FromHeader.NAME);
return getUserIdFromHeader(fromHeader);
}
public static String getUser(Request request) {
return ((SipUri) request.getRequestURI()).getUser();
}
public static SipTransaction getSipTransaction(SIPResponse response) {
SipTransaction sipTransaction = new SipTransaction();
sipTransaction.setCallId(response.getCallIdHeader().getCallId());
sipTransaction.setFromTag(response.getFromTag());
sipTransaction.setToTag(response.getToTag());
sipTransaction.setViaBranch(response.getTopmostViaHeader().getBranch());
return sipTransaction;
}
public static SipTransaction getSipTransaction(SIPRequest request) {
SipTransaction sipTransaction = new SipTransaction();
sipTransaction.setCallId(request.getCallIdHeader().getCallId());
sipTransaction.setFromTag(request.getFromTag());
sipTransaction.setToTag(request.getToTag());
sipTransaction.setViaBranch(request.getTopmostViaHeader().getBranch());
return sipTransaction;
}
public static String getUserIdFromHeader(HeaderAddress headerAddress) {
AddressImpl address = (AddressImpl) headerAddress.getAddress();
SipUri uri = (SipUri)address.getURI();
return uri.getUser();
}
public static String getCallId(RequestEvent requestEvent) {
return ((SIPRequest) requestEvent.getRequest()).getCallIdHeader().getCallId();
}
public static String getCallId(SIPRequest request) {
return request.getCallIdHeader().getCallId();
}
public static RemoteAddressInfo getRemoteAddressFromRequest(SIPRequest request) {
return getRemoteAddressFromRequest(request, false);
}
/**
* 从subject读取channelId
*/
public static String getSubjectId(Request request) {
SubjectHeader subject = (SubjectHeader) request.getHeader(SubjectHeader.NAME);
if (subject == null) {
// 如果缺失subject
return null;
}
return subject.getSubject().split(":")[0];
}
/**
* 从请求中获取设备ip地址和端口号
*
* @param request 请求
* @param sipUseSourceIpAsRemoteAddress false 从via中获取地址， true 直接获取远程地址
* @return 地址信息
*/
public static RemoteAddressInfo getRemoteAddressFromRequest(SIPRequest request, boolean sipUseSourceIpAsRemoteAddress) {
String remoteAddress;
int remotePort;
if (sipUseSourceIpAsRemoteAddress) {
remoteAddress = request.getPeerPacketSourceAddress().getHostAddress();
remotePort = request.getPeerPacketSourcePort();
} else {
// 判断RPort是否改变，改变则说明路由nat信息变化，修改设备信息
// 获取到通信地址等信息
remoteAddress = request.getTopmostViaHeader().getReceived();
remotePort = request.getTopmostViaHeader().getRPort();
// 解析本地地址替代
if (ObjectUtils.isEmpty(remoteAddress) || remotePort == -1) {
remoteAddress = request.getPeerPacketSourceAddress().getHostAddress();
remotePort = request.getPeerPacketSourcePort();
}
}
return new RemoteAddressInfo(remoteAddress, remotePort);
}
public static String generateGB28181Code(int centerCode, int industryCode, int typeCode, int serialNumber) {
String centerCodeStr = String.format("%08d", centerCode);
String industryCodeStr = String.format("%02d", industryCode);
String typeCodeStr = String.format("%03d", typeCode);
String serialNumberStr = String.format("%07d", serialNumber);
return centerCodeStr + industryCodeStr + typeCodeStr + serialNumberStr;
}
public static String genSsrc(String userId) {
if (StringUtils.isEmpty(userId)) {
// 随机生成ssrc
return String.valueOf(RandomUtils.nextLong(100000, 500000));
}
String ssrcPrefix = userId.substring(3, 8);
return String.format("%s%04d", ssrcPrefix, RandomUtils.nextLong(1000, 9999));
}
public static SdpSessionDescription parseSdp(String sdpStr) {
// jainSip 不支持y= f=字段， 移除以解析。
int ssrcIndex = sdpStr.indexOf("y=");
int mediaDescriptionIndex = sdpStr.indexOf("f=");
// 检查是否有y字段
SessionDescription sdp;
String ssrc = null;
String mediaDescription = null;
if (mediaDescriptionIndex == 0 && ssrcIndex == 0) {
sdp = SipRequestUtils.createSessionDescription(sdpStr);
} else {
String lines[] = sdpStr.split("\\r?\\n");
StringBuilder stringBuilder = new StringBuilder();
for (String line : lines) {
if (line.trim().startsWith("y=")) {
ssrc = line.substring(2);
} else if (line.trim().startsWith("f=")) {
mediaDescription = line.substring(2);
} else {
stringBuilder.append(line.trim()).append("\r\n");
}
}
sdp = SipRequestUtils.createSessionDescription(stringBuilder.toString());
}
return GbSessionDescription.getInstance(sdp, ssrc, mediaDescription);
}
public static T parseRequest(RequestEvent event, String charset, Class clazz) {
SIPRequest sipRequest = (SIPRequest) event.getRequest();
return getObj(charset, clazz, sipRequest.getRawContent());
}
public static String parseRequest(RequestEvent event, String charset) {
SIPRequest sipRequest = (SIPRequest) event.getRequest();
byte[] rawContent = sipRequest.getRawContent();
if (StringUtils.isBlank(charset)) {
charset = Constant.UTF_8;
}
return StringTools.toEncodedString(rawContent, Charset.forName(charset));
}
public static T getObj(String charset, Class clazz, byte[] rawContent) {
if (StringUtils.isBlank(charset)) {
charset = Constant.UTF_8;
}
String xmlStr = StringTools.toEncodedString(rawContent, Charset.forName(charset));
Object o = XmlUtils.parseObj(xmlStr, clazz);
return (T)o;
}
public static T parseResponse(ResponseEvent evt, Class tClass) {
return parseResponse(evt, null, tClass);
}
public static T parseResponse(ResponseEvent evt, String charset, Class clazz) {
Response response = evt.getResponse();
return getObj(charset, clazz, response.getRawContent());
}
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