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ONVIF开发经验总结
一、 利用gsoap2.8.14生成Onvif相关源代码................................................................ 2 1. 生成onvif.h头文件的方法................................................................................ 2 1) wsdl2h相关命令参数................................................................................. 2 2) 通过以下命令生成相关源文件.................................................................. 3 3) Soapcpp2相关命令参数............................................................................. 3 3. 利用gsoap2.8.8生成源代码和gsoap2.8.14生成的差异.................................... 4 1) typemap.dat文件中需要添加相关信息...................................................... 4 2) wsa5.h中无SOAP_ENV__Fault函数........................................................... 5
一、 利用gsoap2.8.14生成Onvif相关源代码 1. 生成onvif.h头文件的方法 产生头文件有两种方法：链接网络生成和本地生成。 1) wsdl2h相关命令参数 -c 产生c语言的代码,否则产生C++ -s 不使用STL代码 -t 指定typemap.dat文件 -o 指定生成的头文件名 l 将wsdl2.exe和typemap.dat文件放入同一个文件夹 l 利用cmd或批处理执行以下dos命令: wsdl2h.exe -c -s -t typemap.dat -o onvif.h http://www./onvif/ver10/network/wsdl/remotediscovery.wsdl http://www./onvif/ver10/device/wsdl/devicemgmt.wsdlhttp://www./onvif/ver20/analytics/wsdl/analytics.wsdlhttp://www./onvif/ver10/analyticsdevice.wsdlhttp://www./onvif/ver10/media/wsdl/media.wsdl http://www./onvif/ver10/deviceio.wsdlhttp://www./onvif/ver10/display.wsdlhttp://www./onvif/ver10/event/wsdl/event.wsdlhttp://www./onvif/ver20/imaging/wsdl/imaging.wsdlhttp://www./onvif/ver10/recording.wsdl http://www./onvif/ver10/replay.wsdlhttp://www./onvif/ver10/search.wsdlhttp://www./onvif/ver10/receiver.wsdlhttp://www./onvif/ver20/ptz/wsdl/ptz.wsdl l 从ONVIF官网上把相关的WSDL文档下载到本地,下载地址（详细参见备注说明），此外还需下载样式表,下载地址见WSDL文档中的schemaLocation。 l 将wsdl2.exe、typemap.dath、WSDL文档和样式表放入同一文件夹中。 l 将相关WSDL文档中的样式表引入路径(schemaLocation)修改为本地实际地址，如:event.wsdl中schemaLocation="http://www./2005/08/addressing/ws-addr.xsd修改为schemaLocation = ws-addr.xsd l 利用cmd或批处理执行以下命令 wsdl2h.exe -c -s -t typemap.dat -o onvif.hremotediscovery.wsdldevicemgmt.wsdl analytics.wsdl analyticsdevice.wsdl media.wsdl deviceio.wsdldisplay.wsdl event.wsdl imaging.wsdl ecording.wsdl replay.wsdl search.wsdlreceiver.wsdl ptz.wsdl l wsdl2.exe位于gsoap_2.8.14\gsoap-2.8\gsoap\bin l typemap.dat位于gsoap_2.8.14\gsoap-2.8\gsoap l wsdl下载地址：http://www./Documents/Specifications.aspx l 各url之间用空格隔开 l typemap.dat不需要修改 l 链接网络生成方法的优点是不用考虑以上文件对其它文件的依赖关系,不用修改引入路径。该方法的缺点跟网速有关,因此中途可能会中断,如果超过5分钟未生成,可重新执行命令, 通过代理上网则无法生成,不推荐用此方法。 l 下载本地生成方法的优缺点和链接网络方法生成相反,代理网推荐使用此方法。 2. 生成onvif源代码 把刚生成的onvif.h与soapcpp2.exe、import和custom放入同一文件夹，其中: soapcpp2.exe位于gsoap_2.8.14\gsoap-2.8\gsoap\bin import位于gsoap_2.8.14\gsoap-2.8\gsoap custom位于gsoap_2.8.14\gsoap-2.8\gsoap soapcpp2.exe-2 –c onvif.h -I import 3) Soapcpp2相关命令参数 -2 采用SOAP1.2, -x 不产生xml文件(不推荐使用此命令,因为xml文档很有用) -I 为引入路径 -C 只产生客户端代码(注意:Ｃ是大写) l 需要在onvif.h中加入#import"wsse.h,用来做安全验证 l 需要将import目录下的wsa5.h以下部分注释掉,否则编译时会报soap_xxxx_SOAP_ENV__Fault()函数重复定义。 int SOAP_ENV__Fault ( _QName faultcode, // SOAP 1.1 char *faultstring, //SOAP 1.1 char *faultactor, //SOAP 1.1 struct SOAP_ENV__Detail *detail, // SOAP 1.1 struct SOAP_ENV__Code *SOAP_ENV__Code, // SOAP1.2 struct SOAP_ENV__Reason *SOAP_ENV__Reason, // SOAP 1.2 char *SOAP_ENV__Node, // SOAP 1.2 char *SOAP_ENV__Role, // SOAP 1.2 struct SOAP_ENV__Detail *SOAP_ENV__Detail, // SOAP 1.2 void);
3. 利用gsoap2.8.8生成源代码和gsoap2.8.14生成的差异 利用gsoap2.8.8生成源代码方法跟gsoap2.8.14基本一致,但需注意以下区别: 1) typemap.dat文件中需要添加相关信息 tds ="http://www./ver10/device/wsdl" tev ="http://www./ver10/events/wsdl" tls ="http://www./ver10/display/wsdl" tmd ="http://www./ver10/deviceIO/wsdl" timg ="http://www./ver20/imaging/wsdl" trt ="http://www./ver10/media/wsdl" tptz ="http://www./ver20/ptz/wsdl" trv ="http://www./ver10/receiver/wsdl" trc ="http://www./ver10/recording/wsdl" tse ="http://www./ver10/search/wsdl" trp ="http://www./ver10/replay/wsdl" tan ="http://www./ver20/analytics/wsdl" tad ="http://www./ver10/analyticsdevice/wsdl" tdn ="http://www./ver10/network/wsdl" tt ="http://www./ver10/schema"
# OASISrecommended prefixes wsnt ="http://docs./wsn/b-2" wsntw ="http://docs./wsn/bw-2" wsrfbf ="http://docs./wsrf/bf-2" wsrfr ="http://docs./wsrf/r-2" wsrfrw = "http://docs./wsrf/rw-2" wstop ="http://docs./wsn/t-1"
# WS-Discovery 1.0 remapping wsdd10__HelloType = | wsdd__HelloType wsdd10__ByeType = | wsdd__ByeType wsdd10__ProbeType = | wsdd__ProbeType wsdd10__ProbeMatchesType = | wsdd__ProbeMatchesType wsdd10__ProbeMatchType = | wsdd__ProbeMatchType wsdd10__ResolveType = | wsdd__ResolveType wsdd10__ResolveMatchesType = | wsdd__ResolveMatchesType wsdd10__ResolveMatchType = | wsdd__ResolveMatchType # SOAP-ENV mapping SOAP_ENV__Envelope = struct SOAP_ENV__Envelope { struct SOAP_ENV__Header*SOAP_ENV__Header; _XML SOAP_ENV__Body; }; | struct SOAP_ENV__Envelope SOAP_ENV__Header = | struct SOAP_ENV__Header SOAP_ENV__Fault = | struct SOAP_ENV__Fault SOAP_ENV__Detail = | struct SOAP_ENV__Detail SOAP_ENV__Code = |struct SOAP_ENV__Code SOAP_ENV__Subcode = | struct SOAP_ENV__Subcode SOAP_ENV__Reason = | struct SOAP_ENV__Reason 2) wsa5.h中无SOAP_ENV__Fault函数 由于wsa5.h中没有SOAP_ENV__Fault因此不会产生代码重复，因此不用注释。
二、新建工程,调试代码 1. 新建一个项目 将上面生成的soapH.h、soapStub.h、 wsdd.nsmap、soapC.c、soapClient.c，还有位于gsoap-2.8\gsoap 的:stdsoap2.c、stdsoap2.h和位于\custom中的:duration.c放入工程中，然后编写main函数,调试代码。 2. 文件主要功能说明 wsdd.nsmap 名空间定义，服务器端与客户端都要包含它,里面有很多,都是 相同的,只需导入一个进入工程就行 stdsoap2.h Header _le of stdsoap2.cppruntime library stdsoap2.c RuntimeC library with XML parser and run-time support routines soapStub.h soapH.h //Main header file to be included by all client and servicesources soapC.c //Serializers and deserializers for the specfied datastructures soapClient.c //Clientstub routines for remote operations soapStub.h Amodi_ed and annotated header file produced from the input header file
三、设备发现main函数说明 #include <iostream> #include "wsdd.nsmap" #include "soapH.h" using namespace std; int main() { /*****声明变量***********/ structsoap *soap; //soap环境变量 structwsdd__ProbeType req; //客户端发送的Probe struct__wsdd__ProbeMatches resp; //服务端回的Probematchs structwsdd__ScopesType sScope; //Probe里面的范围 structSOAP_ENV__Header header; //SOAP的头 intresult = 0; //返回值 int count = 0; //获得的设信息备个数
/**获取guid(windows下叫guid,linux下叫uuid),格式为urn:uuid:8-4-4-4-12,由系统随机产生**/ staticchar buf[64] = {0}; //用来保存guid号
GUID guid; /*声明guid为GUID结构体变量,包含4个变量,分别是 unsigned longData1; unsigned short Data2; unsigned short Data3; unsigned char Data4[ 8 ]; */ if (S_OK== CoCreateGuid(&guid)) //如果guid生成成功,则将其转为字符串,保存在buf中 { _snprintf(buf,sizeof(buf) ,"urn:uuid:%08X-%04X-%04x-%02X%02X-%02X%02X%02X%02X%02X%02X" , guid.Data1 , guid.Data2 , guid.Data3 , guid.Data4[0], guid.Data4[1] , guid.Data4[2], guid.Data4[3], guid.Data4[4],guid.Data4[5] , guid.Data4[6], guid.Data4[7] ); } soap = soap_new(); //初始化soap if(soap==NULL) { return -1; } soap_set_namespaces(soap,namespaces); //设置命名空间 soap->recv_timeout = 5; //设置接收Probematchs时间,超过5秒钟没有数据就退出 soap_default_SOAP_ENV__Header(soap,&header); //将header设置为soap消息的头属性 /*****给头赋值******/ header.wsa__MessageID =buf; header.wsa__To="urn:schemas-xmlsoap-org:ws:2005:04:discovery"; header.wsa__Action="http://schemas./ws/2005/04/discovery/Probe"; soap->header = &header; /*设置所需寻找设备的类型和范围,二者至少设定一个,否则可能收到非ONVIF设备,出现异常*/ soap_default_wsdd__ScopesType(soap,&sScope); sScope.__item ="onvif://www."; //设置所需设备的sScope soap_default_wsdd__ProbeType(soap,&req); req.Scopes = &sScope; req.Types ="tdn:NetworkVideoTransmitter"; /*设置所需设备的类型,tdn为命名空间前缀,为wsdd.nsmap文件中{"tdn","http://www./ver10/network/wsdl"}的tdn,如过不是tdn,而是其它,如ns1这里也要随之改为ns1*/
//通过组播发送Probe探针,发送成功返回0,否则-1 result = soap_send___wsdd__Probe(soap,"soap.udp://239.255.255.250:3702", NULL, &req); if(result==-1) { cout<<"soap error:"<<soap->error<<soap_faultcode(soap) <<"---"<<soap_faultstring(soap)<<endl; }else { do{ result = soap_recv___wsdd__ProbeMatches(soap,&resp); //接收ProbeMatches,成功返回0,否则-1 if (result==-1) { cout<<"共发现"<<count<<"个设备"<<endl; cout<<"soap error:"<<soap->error<<soap_faultcode(soap) <<"---"<<soap_faultstring(soap)<<endl; break; }else { count++; cout<<"========================================="<<endl; cout<<"UUID:"<<""<<resp.wsdd__ProbeMatches->ProbeMatch-> wsa__EndpointReference.Address<<endl; cout<<"Type:"<<""<<resp.wsdd__ProbeMatches->ProbeMatch->Types<<endl; cout<<"Scopes:"<<""<< resp.wsdd__ProbeMatches-> ProbeMatch->Scopes->__item<<endl; cout<<"DeviceService Address:"<<""<<resp.wsdd__ProbeMatches-> ProbeMatch->XAddrs<<endl; cout<<"MetadataVersion:"<<""<<resp.wsdd__ProbeMatches-> ProbeMatch->MetadataVersion<<endl; } }while(1); } /********清除变量************/ soap_destroy(soap); // removedeserialized class instances (C++ only) soap_end(soap); //clean up and remove deserialized data soap_done(soap); returnresult; } 1. 出现如下语法错误： error C2143:语法错误 : 缺少“{”(在“:”的前面) error C2059:语法错误 : “:” error C2143:语法错误 : 缺少“{”(在“:”的前面) 需要将工程中的.c文件改成.cpp文件即可。 2. 无法解析的外部命令错误soap_check_faultsubcode 在stdsoap2.h中声明的soap_check_faultsubcode(structsoap *soap)函数在soapC.cpp中未实现, 可在soapC.cpp中添加如下实现： SOAP_FMAC3 const char * SOAP_FMAC4soap_check_faultsubcode(struct soap *soap) { soap_fault(soap); if(soap->version == 2) { if(soap->fault->SOAP_ENV__Code &&soap->fault->SOAP_ENV__Code->SOAP_ENV__Subcode &&soap->fault->SOAP_ENV__Code->SOAP_ENV__Subcode) returnsoap->fault->SOAP_ENV__Code->SOAP_ENV__Subcode->SOAP_ENV__Value; return NULL; } returnsoap->fault->faultcode; } 3. 无法解析的外部命令错误soap_check_faultdetail 在stdsoap2.h中声明的soap_check_faultdetail(struct soap *soap)函数在soapC.cpp中未实现, 可在soapC.cpp中添加如下实现： SOAP_FMAC3 const char * SOAP_FMAC4soap_check_faultdetail(struct soap *soap) { soap_fault(soap); if(soap->version == 2 && soap->fault->SOAP_ENV__Detail) returnsoap->fault->SOAP_ENV__Detail->__any; if(soap->fault->detail) return soap->fault->detail->__any; returnNULL; } 4. 出现无法解析的外部符号_soap_in_xsd__duration 无法解析的外部符号_soap_in_xsd__duration，该符号在函数_soap_getelement中被引用soapC.obj : error LNK2019: 无法解析的外部符号_soap_out_xsd__duration，该符号在函数_soap_putelement中被引用 soapC.obj: error LNK2019: 无法解析的外部符号_soap_default_xsd__duration，该符号在函数_soap_default__tse__FindMetadata中被引用 需要将\custom文件夹下面的duration.h和duration.c导入工程中。 5. 在VS中出现fatal error C1128: 节数超过对象文件格式限制:请使用/bigobj 进行编译的错误 这是由于源代码文件太大的原因，需添加选项/bigobj，在项目属性-> C/C++ ->命令行的附加选项中添加/bigobj。 6. 如果是调用soap_call_XXXX_Probe()来实现设备发现时不能发现所有onvif设备 该函数实现过程中只有一次接收过程，所以无法发现所有的设备的问题。如果使用该函数，还需要对函数的实现做以下更改： 函数的接收部分，将原来的XXXX:Response该为YYYY:ProbeMatches, 其中XXXX是.nsmap文件中http://www./ver10/network/wsdl"所对应的命名空间前缀，YYYY与后面YYYY：ProbeMatchesType中的前缀相同，都是http://schemas./ws/2005/04/discovery所对应的命名空间前缀名。 7. 抓包实验问题 利用gsoap生成的wsdd.namsp如下: #include "soapH.h" SOAP_NMAC struct Namespace namespaces[] = { {"SOAP-ENV","http://schemas./soap/envelope/","http://www./*/soap-envelope", NULL}, {"SOAP-ENC","http://schemas./soap/encoding/","http://www./*/soap-encoding", NULL}, {"xsi","http://www./2001/XMLSchema-instance","http://www./*/XMLSchema-instance", NULL}, {"xsd","http://www./2001/XMLSchema","http://www./*/XMLSchema", NULL}, {"wsa","http://schemas./ws/2004/08/addressing", NULL, NULL}, {"wsdd","http://schemas./ws/2005/04/discovery", NULL, NULL}, {"chan","http://schemas.microsoft.com/ws/2005/02/duplex", NULL, NULL}, {"wsa5","http://www./2005/08/addressing","http://schemas./ws/2004/08/addressing", NULL}, {"xmime","http:///xmime.xsd", NULL, NULL}, {"xop","http://www./2004/08/xop/include", NULL, NULL}, {"tt","http://www./ver10/schema", NULL, NULL}, {"wsrfbf","http://docs./wsrf/bf-2", NULL, NULL}, {"wstop","http://docs./wsn/t-1", NULL, NULL}, {"wsrfr","http://docs./wsrf/r-2", NULL, NULL}, {"tad","http://www./ver10/analyticsdevice/wsdl", NULL, NULL}, {"tan","http://www./ver20/analytics/wsdl", NULL, NULL}, {"tdn","http://www./ver10/network/wsdl", NULL, NULL}, {"tds","http://www./ver10/device/wsdl", NULL, NULL}, {"tev","http://www./ver10/events/wsdl", NULL, NULL}, {"wsnt","http://docs./wsn/b-2", NULL, NULL}, {"timg","http://www./ver20/imaging/wsdl", NULL, NULL}, {"tls","http://www./ver10/display/wsdl", NULL, NULL}, {"tmd","http://www./ver10/deviceIO/wsdl", NULL, NULL}, {"tptz","http://www./ver20/ptz/wsdl", NULL, NULL}, {"trc","http://www./ver10/recording/wsdl", NULL, NULL}, {"trp","http://www./ver10/replay/wsdl", NULL, NULL}, {"trt","http://www./ver10/media/wsdl", NULL, NULL}, {"trv","http://www./ver10/receiver/wsdl", NULL, NULL}, {"tse","http://www./ver10/search/wsdl", NULL, NULL}, {NULL,NULL, NULL, NULL} };
1)通过编写面函数之后,调试运行结果如下:
其中http://192.168.106.112:80/onvif/device_service为本地模拟的设备
通过抓包工具获得信息如下:
2).保留以下命名空间,删除其它信息: #include "soapH.h" SOAP_NMAC struct Namespace namespaces[] = { {"SOAP-ENV","http://schemas./soap/envelope/","http://www./*/soap-envelope", NULL}, {"SOAP-ENC","http://schemas./soap/encoding/","http://www./*/soap-encoding", NULL}, {"xsi","http://www./2001/XMLSchema-instance","http://www./*/XMLSchema-instance", NULL}, {"xsd","http://www./2001/XMLSchema","http://www./*/XMLSchema", NULL}, {"wsa","http://schemas./ws/2004/08/addressing", NULL, NULL}, {"wsdd","http://schemas./ws/2005/04/discovery", NULL, NULL}, {"wsa5","http://www./2005/08/addressing","http://schemas./ws/2004/08/addressing", NULL}, {"xmime","http:///xmime.xsd", NULL, NULL}, {"xop","http://www./2004/08/xop/include", NULL, NULL}, {"tt","http://www./ver10/schema", NULL, NULL}, {NULL,NULL, NULL, NULL} }; 调试运行结果如下:
抓包工具抓到信息如下:
3)测试工具信息如下 抓包信息如下:
4)多次实验显示: wsdd.namsp文件太大时,将会被拆包,192.168.106.164将始终不会回消息,减小命名空间大小,保证只发送一个UDP包,192.168.106.164将始终能回消息
5) 通过抓包发现,做设备管理功能时客户端已能构与设备端通信,只是涉及到安全,设备端没有返回信息
6)在程序运行时,可能会出现一下信息 这是由于Type和Scopes都没有赋值,接收了非ONVIF的设备 它的body中没有我们需要的值,所以在输出时会引起中断
1. 对于利用gsoap工具实现基于ONVIF标准的功能,尽量按照如下顺序: 了解所需实现的功能原理,参考<<ONVIF_Core_Specification,_version_2.0.pdf>> 了解gsoap工具的使用方法和编程方法,还有文件结构,参考<<gSOAP 2.8.14 User Guide>>,位于gsoap_2.8.14\gsoap-2.8\gsoap\doc\soapdoc2.pdf里面,里面内容很多,可根据需要查找相关内容,如The wsdl2h WSDL and Schema Importer(84), Using thesoapcpp2 Compiler and Code Generator(89)SOAP Header Processing(178页),SOAP/XML Over UDP(208页) 根据所需实现的功能查看对应的xml文档(生成源代码时产生的,)因为生成的xml文档是客户端和服务端通信时所发送的模板结构,通过它可以了解编码时所需要填充的信息 了解工程中.h和.cpp的功能 查看别人写的例子,理解原理，要学会从原理上去分析碰到的问题并解决问题 自己写代码验证，事实求是，替自己负责，替用户负责。 2. 善于利用抓包工具 从原理上分析问题,能大大提高效率,如果利用测试工具跟客户端通信,然后进行抓包,能构很好的分析出客户端需发送的消息,服务端回的消息,非常利于编码。 |
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