onvif开发实战2--总结框架搭建
2017-03-15 10:50
357 查看
完成框架搭建后,编写自己的主函数起onvif服务
编写makefile
objs = onvif.o onvif_func.o duration.o soapC.o soapServer.o stdsoap2.o
onvif:$(objs)
gcc -o onvif $(objs)
.PHONY:clean
clean:
#-rm onvif
rm *[!C.o].o
发现提示好多函数没有定义,在头文件soapStub.h中定义的,直接把没有定义的函数声明拷贝到一个onvif_func.c中
暂时用ue等工具实现一个空函数,
将;替换为^p{^p^treturn SOAP_OK;^p}
就可以实现素有函数的空实现,然后编译通过就可以了。。。
下面就是启动onvif服务端代码的具体实现了。。
然后
其中包括:
(1)创建组播用的udp socket,绑定组播地址为239.255.255.250,端口为3702,因为ws-discovery的组播地址和端口就是为239.255.255.250和3702
(2)在产生的Probe函数中添加ProbeMatches代码
首先是udp socket
[cpp] view plaincopy
int bind_server_udp1(int server_s)
{
struct sockaddr_in local_addr;
memset(&local_addr,0,sizeof(local_addr));
local_addr.sin_family = AF_INET;
local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
local_addr.sin_port = htons(3702);
return bind(server_s,(struct sockaddr*)&local_addr,sizeof(local_addr));
}
static int create_server_socket_udp(void)
{
int server_udp;
unsigned char one = 1;
int sock_opt = 1;
//server_udp = socket(PF_INET, SOCK_DGRAM, 0);
server_udp = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (server_udp == -1) {
printf("unable to create socket\n");
}
/* reuse socket addr */
if ((setsockopt(server_udp, SOL_SOCKET, SO_REUSEADDR, (void *) &sock_opt,
sizeof (sock_opt))) == -1) {
printf("setsockopt\n");
}
if ((setsockopt(server_udp, IPPROTO_IP, IP_MULTICAST_LOOP,
&one, sizeof (unsigned char))) == -1) {
printf("setsockopt\n");
}
struct ip_mreq mreq;
mreq.imr_multiaddr.s_addr = inet_addr("239.255.255.250");
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
if(setsockopt(server_udp,IPPROTO_IP,IP_ADD_MEMBERSHIP,&mreq,sizeof(mreq))==-1){
perror("memberchip error\n");
}
return server_udp;
}
需要注意几点:1/设置socket属性SO_REUSEADDR,2、设置socket属性IP_ADD_MEMBERSHIP,目的是让3702的端口能够重复绑定,一家加入组播组。
其次是添加ProbeMatches代码
(1)首先复制client的soap_send___wsdd__ProbeMatches函数到服务端来,因为soap_send___wsdd__ProbeMatches已经写好了用于响应Probe消息的框架了,不用白不用啊。
(2)编写__wsdd__Probe函数,添加如下内容
[cpp] view plaincopy
int __wsdd__Probe(struct soap* soap, struct wsdd__ProbeType *wsdd__Probe)
{
DBG("__wsdd__Probe\n");
char macaddr[6];
char _IPAddr[INFO_LENGTH];
char _HwId[1024];
wsdd__ProbeMatchesType ProbeMatches;
ProbeMatches.ProbeMatch = (struct wsdd__ProbeMatchType *)soap_malloc(soap, sizeof(struct wsdd__ProbeMatchType));
ProbeMatches.ProbeMatch->XAddrs = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
ProbeMatches.ProbeMatch->Types = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
ProbeMatches.ProbeMatch->Scopes = (struct wsdd__ScopesType*)soap_malloc(soap,sizeof(struct wsdd__ScopesType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties = (struct wsa__ReferencePropertiesType*)soap_malloc(soap,sizeof(struct wsa__ReferencePropertiesType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters = (struct wsa__ReferenceParametersType*)soap_malloc(soap,sizeof(struct wsa__ReferenceParametersType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName = (struct wsa__ServiceNameType*)soap_malloc(soap,sizeof(struct wsa__ServiceNameType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType = (char **)soap_malloc(soap, sizeof(char *) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.__any = (char **)soap_malloc(soap, sizeof(char*) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.__anyAttribute = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.Address = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
macaddr[0]=0x01;macaddr[1]=0x01;macaddr[2]=0x01;macaddr[3]=0x01;macaddr[4]=0x01;macaddr[5]=0x01;
sprintf(_HwId,"urn:uuid:2419d68a-2dd2-21b2-a205-%02X%02X%02X%02X%02X%02X",macaddr[0], macaddr[1], macaddr[2], macaddr[3], macaddr[4], macaddr[5]);
sprintf(_IPAddr, "http://%03d.%03d.%1d.%03d/onvif/device_service", 192, 168, 1, 233);
ProbeMatches.__sizeProbeMatch = 1;
ProbeMatches.ProbeMatch->Scopes->__item =(char *)soap_malloc(soap, 1024);
memset(ProbeMatches.ProbeMatch->Scopes->__item,0,sizeof(ProbeMatches.ProbeMatch->Scopes->__item));
//Scopes MUST BE
strcat(ProbeMatches.ProbeMatch->Scopes->__item, "onvif://www.onvif.org/type/NetworkVideoTransmitter");
ProbeMatches.ProbeMatch->Scopes->MatchBy = NULL;
strcpy(ProbeMatches.ProbeMatch->XAddrs, _IPAddr);
strcpy(ProbeMatches.ProbeMatch->Types, wsdd__Probe->Types);
DBG("wsdd__Probe->Types=%s\n",wsdd__Probe->Types);
ProbeMatches.ProbeMatch->MetadataVersion = 1;
//ws-discovery规定 为可选项
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties->__size = 0;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties->__any = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters->__size = 0;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters->__any = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType[0] = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
//ws-discovery规定 为可选项
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType[0], "ttl");
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->__item = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->PortName = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->__anyAttribute = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.__any[0] = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.__any[0], "Any");
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.__anyAttribute, "Attribute");
ProbeMatches.ProbeMatch->wsa__EndpointReference.__size = 0;
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.Address, _HwId);
/*注释的部分为可选,注释掉onvif test也能发现ws-d*/
//soap->header->wsa__To = "http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous";
//soap->header->wsa__Action = "http://schemas.xmlsoap.org/ws/2005/04/discovery/ProbeMatches";
soap->header->wsa__RelatesTo = (struct wsa__Relationship*)soap_malloc(soap, sizeof(struct wsa__Relationship));
//it's here
soap->header->wsa__RelatesTo->__item = soap->header->wsa__MessageID;
soap->header->wsa__RelatesTo->RelationshipType = NULL;
soap->header->wsa__RelatesTo->__anyAttribute = NULL;
soap->header->wsa__MessageID =(char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
strcpy(soap->header->wsa__MessageID,_HwId+4);
/* send over current socket as HTTP OK response: */
/*测试过,第二参数必须http,action随意*/
soap_send___wsdd__ProbeMatches(soap, "http://", NULL, &ProbeMatches);
return SOAP_OK;
}
想要写出上述代码,是一定要了解SOAP格式的,在WS-Discovery中描述了discovery所用的soap格式
1首先是了解消息头header和ProbeMatches中的内容,非常重要,可以参考这里http://www.w3.org/Submission/ws-addressing/ 最好详细的学习一下,里面的内容非常重要。
2其次需要理解的是,其实当你看完ws-addressing后你会发现,骨架代码中的结构体和SOAP消息中的内容是一一对应的,例如:
结构体osap->header对应SOAP消息的<SOAP-ENV:Header></SOAP-ENV:Header>中的内容,包含在header里的内容当然会包含在SOAP的header内。例如:
结构体soap->header->wsa__RelatesTo对应的是<wsa:RelatesTo></wsa:RelatesTo>。
3最后需要理解的是,在代码中的"__"双下划线一般对应xml中的命名空间的":",下划线前是命名空间,后是具体内容。
4最后的最后是要详细的阅读ONVIF Core Specification
下图为响应OnvifTestTool的Probe命令的SOAP消息
结合上图再分析代码就亲切多了。在ONVIF Core Specification的7.3.2.2 Scopes 一节描述了onvif需要的Scopes,这个是需要在程序里填充,具体填充什么,文档里说的很明确:
注意点是在太多,随便漏掉一个都可能会导致搜不到设备,下图是非常重要的一个:
SOAP1.1和SOAP1.2所使用的SOAP-ENV是不同的,ONVIF使用的是SOAP1.1,如果soapcpp2产生的nsmap文件中的SOAP-ENV是SOAP1.2版本的话,那么OnvifTestTool是不会识别设备发出的SOAP消息的。
int main()
{
int server_udp;
int retval=0;
struct soap *soap_udp;
int fault_flag = 0;
server_udp = create_server_socket_udp();
bind_server_udp1(server_udp);
while(1){
soap_udp=soap_new();
soap_init1(soap_udp, SOAP_IO_UDP);
soap_udp->master = server_udp;
soap_udp->socket = server_udp;
soap_udp->errmode = 0;
soap_udp->bind_flags = 1;
if (!soap_valid_socket(soap_bind(soap_udp, NULL, 3702, 100)))
{
soap_print_fault(soap_udp, stderr);
}
fprintf(stderr,"soap_serve starting..\n");
retval = soap_serve(soap_udp); //阻塞在这里
fprintf(stderr,"retval=%d\n",retval);
if(retval && !(fault_flag))
{
fault_flag = 1;
}
else if(!retval)
{
fault_flag = 0;
}
soap_destroy(soap_udp);
soap_end(soap_udp);
soap_done(soap_udp);
free(soap_udp);
}
}
soap_server函数会一直阻塞,直到接收到SOAP消息,并且该处理是一次性的,所以要将将soap_server放到while里或者独立的线程中。
最后编译运行
问题:哥编译出来的代码,各项都正确啊,就是搜索不到,test工具提示没有返回消息,麻蛋啊。。
自习查看上文才发现,哥的SOAP1.2的,onvif只支持1.1,换了果断可以搜索到。。妹的。。
编写makefile
objs = onvif.o onvif_func.o duration.o soapC.o soapServer.o stdsoap2.o
onvif:$(objs)
gcc -o onvif $(objs)
.PHONY:clean
clean:
#-rm onvif
rm *[!C.o].o
发现提示好多函数没有定义,在头文件soapStub.h中定义的,直接把没有定义的函数声明拷贝到一个onvif_func.c中
暂时用ue等工具实现一个空函数,
将;替换为^p{^p^treturn SOAP_OK;^p}
就可以实现素有函数的空实现,然后编译通过就可以了。。。
下面就是启动onvif服务端代码的具体实现了。。
组播setsockopt:no such device问题的解决方法
route add -net 224.0.0.0 netmask 224.0.0.0 eth0然后
4、ProbeMatches代码
这样就创建了基本的服务端和客户端的代码了,下面需要添加具体的代码了。其中包括:
(1)创建组播用的udp socket,绑定组播地址为239.255.255.250,端口为3702,因为ws-discovery的组播地址和端口就是为239.255.255.250和3702
(2)在产生的Probe函数中添加ProbeMatches代码
首先是udp socket
[cpp] view plaincopy
int bind_server_udp1(int server_s)
{
struct sockaddr_in local_addr;
memset(&local_addr,0,sizeof(local_addr));
local_addr.sin_family = AF_INET;
local_addr.sin_addr.s_addr = htonl(INADDR_ANY);
local_addr.sin_port = htons(3702);
return bind(server_s,(struct sockaddr*)&local_addr,sizeof(local_addr));
}
static int create_server_socket_udp(void)
{
int server_udp;
unsigned char one = 1;
int sock_opt = 1;
//server_udp = socket(PF_INET, SOCK_DGRAM, 0);
server_udp = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
if (server_udp == -1) {
printf("unable to create socket\n");
}
/* reuse socket addr */
if ((setsockopt(server_udp, SOL_SOCKET, SO_REUSEADDR, (void *) &sock_opt,
sizeof (sock_opt))) == -1) {
printf("setsockopt\n");
}
if ((setsockopt(server_udp, IPPROTO_IP, IP_MULTICAST_LOOP,
&one, sizeof (unsigned char))) == -1) {
printf("setsockopt\n");
}
struct ip_mreq mreq;
mreq.imr_multiaddr.s_addr = inet_addr("239.255.255.250");
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
if(setsockopt(server_udp,IPPROTO_IP,IP_ADD_MEMBERSHIP,&mreq,sizeof(mreq))==-1){
perror("memberchip error\n");
}
return server_udp;
}
需要注意几点:1/设置socket属性SO_REUSEADDR,2、设置socket属性IP_ADD_MEMBERSHIP,目的是让3702的端口能够重复绑定,一家加入组播组。
其次是添加ProbeMatches代码
(1)首先复制client的soap_send___wsdd__ProbeMatches函数到服务端来,因为soap_send___wsdd__ProbeMatches已经写好了用于响应Probe消息的框架了,不用白不用啊。
(2)编写__wsdd__Probe函数,添加如下内容
[cpp] view plaincopy
int __wsdd__Probe(struct soap* soap, struct wsdd__ProbeType *wsdd__Probe)
{
DBG("__wsdd__Probe\n");
char macaddr[6];
char _IPAddr[INFO_LENGTH];
char _HwId[1024];
wsdd__ProbeMatchesType ProbeMatches;
ProbeMatches.ProbeMatch = (struct wsdd__ProbeMatchType *)soap_malloc(soap, sizeof(struct wsdd__ProbeMatchType));
ProbeMatches.ProbeMatch->XAddrs = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
ProbeMatches.ProbeMatch->Types = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
ProbeMatches.ProbeMatch->Scopes = (struct wsdd__ScopesType*)soap_malloc(soap,sizeof(struct wsdd__ScopesType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties = (struct wsa__ReferencePropertiesType*)soap_malloc(soap,sizeof(struct wsa__ReferencePropertiesType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters = (struct wsa__ReferenceParametersType*)soap_malloc(soap,sizeof(struct wsa__ReferenceParametersType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName = (struct wsa__ServiceNameType*)soap_malloc(soap,sizeof(struct wsa__ServiceNameType));
ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType = (char **)soap_malloc(soap, sizeof(char *) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.__any = (char **)soap_malloc(soap, sizeof(char*) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.__anyAttribute = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
ProbeMatches.ProbeMatch->wsa__EndpointReference.Address = (char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
macaddr[0]=0x01;macaddr[1]=0x01;macaddr[2]=0x01;macaddr[3]=0x01;macaddr[4]=0x01;macaddr[5]=0x01;
sprintf(_HwId,"urn:uuid:2419d68a-2dd2-21b2-a205-%02X%02X%02X%02X%02X%02X",macaddr[0], macaddr[1], macaddr[2], macaddr[3], macaddr[4], macaddr[5]);
sprintf(_IPAddr, "http://%03d.%03d.%1d.%03d/onvif/device_service", 192, 168, 1, 233);
ProbeMatches.__sizeProbeMatch = 1;
ProbeMatches.ProbeMatch->Scopes->__item =(char *)soap_malloc(soap, 1024);
memset(ProbeMatches.ProbeMatch->Scopes->__item,0,sizeof(ProbeMatches.ProbeMatch->Scopes->__item));
//Scopes MUST BE
strcat(ProbeMatches.ProbeMatch->Scopes->__item, "onvif://www.onvif.org/type/NetworkVideoTransmitter");
ProbeMatches.ProbeMatch->Scopes->MatchBy = NULL;
strcpy(ProbeMatches.ProbeMatch->XAddrs, _IPAddr);
strcpy(ProbeMatches.ProbeMatch->Types, wsdd__Probe->Types);
DBG("wsdd__Probe->Types=%s\n",wsdd__Probe->Types);
ProbeMatches.ProbeMatch->MetadataVersion = 1;
//ws-discovery规定 为可选项
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties->__size = 0;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceProperties->__any = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters->__size = 0;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ReferenceParameters->__any = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType[0] = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
//ws-discovery规定 为可选项
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.PortType[0], "ttl");
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->__item = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->PortName = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.ServiceName->__anyAttribute = NULL;
ProbeMatches.ProbeMatch->wsa__EndpointReference.__any[0] = (char *)soap_malloc(soap, sizeof(char) * SMALL_INFO_LENGTH);
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.__any[0], "Any");
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.__anyAttribute, "Attribute");
ProbeMatches.ProbeMatch->wsa__EndpointReference.__size = 0;
strcpy(ProbeMatches.ProbeMatch->wsa__EndpointReference.Address, _HwId);
/*注释的部分为可选,注释掉onvif test也能发现ws-d*/
//soap->header->wsa__To = "http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous";
//soap->header->wsa__Action = "http://schemas.xmlsoap.org/ws/2005/04/discovery/ProbeMatches";
soap->header->wsa__RelatesTo = (struct wsa__Relationship*)soap_malloc(soap, sizeof(struct wsa__Relationship));
//it's here
soap->header->wsa__RelatesTo->__item = soap->header->wsa__MessageID;
soap->header->wsa__RelatesTo->RelationshipType = NULL;
soap->header->wsa__RelatesTo->__anyAttribute = NULL;
soap->header->wsa__MessageID =(char *)soap_malloc(soap, sizeof(char) * INFO_LENGTH);
strcpy(soap->header->wsa__MessageID,_HwId+4);
/* send over current socket as HTTP OK response: */
/*测试过,第二参数必须http,action随意*/
soap_send___wsdd__ProbeMatches(soap, "http://", NULL, &ProbeMatches);
return SOAP_OK;
}
想要写出上述代码,是一定要了解SOAP格式的,在WS-Discovery中描述了discovery所用的soap格式
1首先是了解消息头header和ProbeMatches中的内容,非常重要,可以参考这里http://www.w3.org/Submission/ws-addressing/ 最好详细的学习一下,里面的内容非常重要。
2其次需要理解的是,其实当你看完ws-addressing后你会发现,骨架代码中的结构体和SOAP消息中的内容是一一对应的,例如:
结构体osap->header对应SOAP消息的<SOAP-ENV:Header></SOAP-ENV:Header>中的内容,包含在header里的内容当然会包含在SOAP的header内。例如:
结构体soap->header->wsa__RelatesTo对应的是<wsa:RelatesTo></wsa:RelatesTo>。
3最后需要理解的是,在代码中的"__"双下划线一般对应xml中的命名空间的":",下划线前是命名空间,后是具体内容。
4最后的最后是要详细的阅读ONVIF Core Specification
下图为响应OnvifTestTool的Probe命令的SOAP消息
结合上图再分析代码就亲切多了。在ONVIF Core Specification的7.3.2.2 Scopes 一节描述了onvif需要的Scopes,这个是需要在程序里填充,具体填充什么,文档里说的很明确:
注意点是在太多,随便漏掉一个都可能会导致搜不到设备,下图是非常重要的一个:
SOAP1.1和SOAP1.2所使用的SOAP-ENV是不同的,ONVIF使用的是SOAP1.1,如果soapcpp2产生的nsmap文件中的SOAP-ENV是SOAP1.2版本的话,那么OnvifTestTool是不会识别设备发出的SOAP消息的。
5、该main函数登场了
[cpp] view plaincopyint main()
{
int server_udp;
int retval=0;
struct soap *soap_udp;
int fault_flag = 0;
server_udp = create_server_socket_udp();
bind_server_udp1(server_udp);
while(1){
soap_udp=soap_new();
soap_init1(soap_udp, SOAP_IO_UDP);
soap_udp->master = server_udp;
soap_udp->socket = server_udp;
soap_udp->errmode = 0;
soap_udp->bind_flags = 1;
if (!soap_valid_socket(soap_bind(soap_udp, NULL, 3702, 100)))
{
soap_print_fault(soap_udp, stderr);
}
fprintf(stderr,"soap_serve starting..\n");
retval = soap_serve(soap_udp); //阻塞在这里
fprintf(stderr,"retval=%d\n",retval);
if(retval && !(fault_flag))
{
fault_flag = 1;
}
else if(!retval)
{
fault_flag = 0;
}
soap_destroy(soap_udp);
soap_end(soap_udp);
soap_done(soap_udp);
free(soap_udp);
}
}
soap_server函数会一直阻塞,直到接收到SOAP消息,并且该处理是一次性的,所以要将将soap_server放到while里或者独立的线程中。
最后编译运行
问题:哥编译出来的代码,各项都正确啊,就是搜索不到,test工具提示没有返回消息,麻蛋啊。。
自习查看上文才发现,哥的SOAP1.2的,onvif只支持1.1,换了果断可以搜索到。。妹的。。
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