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用xposed hook这个方法就可以拿到对应的签名
public String getMtopApiSign(HashMap<String, String> params, String appKey,
String authCode) { String instanceId = getInstanceId(); if (params == null) {
TBSdkLog.e("mtopsdk.InnerSignImpl", instanceId + " [getMtopApiSign] params is
null.appKey=" + appKey); return null; } else if (appKey == null) { params.put(
"SG_ERROR_CODE", "AppKey is null"); TBSdkLog.e("mtopsdk.InnerSignImpl",
instanceId+ " [getMtopApiSign] AppKey is null."); return null; } else if (this.
sgMgr== null) { params.put("SG_ERROR_CODE", "SGManager is null"); TBSdkLog.e(
"mtopsdk.InnerSignImpl", instanceId + " [getMtopApiSign]SecurityGuardManager is
null,please call ISign init()"); return null; } else { try {
SecurityGuardParamContext sgContext= new SecurityGuardParamContext(); sgContext.
appKey= appKey; sgContext.requestType = 7; Map<String, String> paramsMap =
convertInnerBaseStrMap(params, appKey); if (paramsMap != null && 2 == getEnv())
{ paramsMap.put("ATLAS", "daily"); } sgContext.paramMap = paramsMap; return this
.sgMgr.getSecureSignatureComp().signRequest(sgContext, authCode); } catch (
SecException e) { int errorCode = e.getErrorCode(); kPt.commitStats(
"SignMtopRequest", String.valueOf(errorCode), ""); params.put("SG_ERROR_CODE",
String.valueOf(errorCode)); TBSdkLog.e("mtopsdk.InnerSignImpl", instanceId + "
[getMtopApiSign] ISecureSignatureComponent signRequest error,errorCode=" +
errorCode, e); return null; } catch (Exception e2) { TBSdkLog.e(
"mtopsdk.InnerSignImpl", instanceId + " [getMtopApiSign]
ISecureSignatureComponent signRequest error", e2); return null; } } }