getcapabilities:獲取能力,主要目的獲取設(shè)備能力信息(獲取媒體服務(wù)地址)

鑒權(quán)：但是在調(diào)用獲取設(shè)備能力之前是需要鑒權(quán)的。onvif協(xié)議規(guī)定，部分接口需要鑒權(quán)，部分接口不需要鑒權(quán)，在調(diào)用需要鑒權(quán)的接口時不使用鑒權(quán)，會導(dǎo)致接口調(diào)用失敗。實現(xiàn)鑒權(quán)的方式之一可以調(diào)用gsoap源碼中的?soap_wsse_add_usernametokendigest()函數(shù)。要安裝依賴庫openssl

實現(xiàn)代碼：

1 #include

2 #include

3 #include

4 #include

5

6 #include "soaph.h"

7 #include "stdsoap2.h"

8 #include "soapstub.h"

9 #include "wsseapi.h"

10

11 #include "wsdd.nsmap" //命名空間

12

13 static struct soap* onvif_initsoap(struct soap_env__header *header, const char *was_to, const char *was_action, int timeout)

14 {

15 struct soap *soap = null; // soap環(huán)境變量

16 unsigned char macaddr[6];

17 char _hwid[1024];

18 unsigned int flagrand;

19

20 soap = soap_new();

21 if(soap == null)

22 {

23 printf("[%d]soap = null\n", __line__);

24 return null;

25 }

26

27 soap_set_namespaces(soap, namespaces); // 設(shè)置soap的namespaces，即設(shè)置命名空間

28

29 // 設(shè)置超時(超過指定時間沒有數(shù)據(jù)就退出)

30 if(timeout > 0)

31 {

32 soap->recv_timeout = timeout;

33 soap->send_timeout = timeout;

34 soap->connect_timeout = timeout;

35 }

36 else

37 {

38 //maximum waittime : 20s

39 soap->recv_timeout = 20;

40 soap->send_timeout = 20;

41 soap->connect_timeout = 20;

42 }

43

44 soap_default_soap_env__header(soap, header);

45

46 //create sessionid randomly,生成uuid(windows下叫g(shù)uid，linux下叫uuid)，格式為urn:uuid:8-4-4-4-12，由系統(tǒng)隨機產(chǎn)生

47 srand((int)time(0));

48 flagrand = rand()%9000 + 8888;

49 macaddr[0] = 0x1;

50 macaddr[1] = 0x2;

51 macaddr[2] = 0x3;

52 macaddr[3] = 0x4;

53 macaddr[4] = 0x5;

54 macaddr[5] = 0x6;

55 sprintf(_hwid, "urn:uuid:%ud68a-1dd2-11b2-a105-%02x%02x%02x%02x%02x%02x", flagrand, macaddr[0], macaddr[1], macaddr[2],macaddr[3],macaddr[4],macaddr[5]);

56 header->wsa__messageid = (char *)malloc(100);

57 memset(header->wsa__messageid, 0, 100);

58 strncpy(header->wsa__messageid, _hwid, strlen(_hwid)); //wsa__messageid存放的是uuid

59

60 if(was_action != null)

61 {

62 header->wsa__action = (char*)malloc(1024);

63 memset(header->wsa__action, '\0', 1024);

64 strncpy(header->wsa__action, was_action, 1024); //

65 }

66 if(was_to != null)

67 {

68 header->wsa__to = (char *)malloc(1024);

69 memset(header->wsa__to, '\0', 1024);

70 strncpy(header->wsa__to, was_to, 1024);//"urn:schemas-xmlsoap-org:ws:2005:04:discovery";

71 }

72 soap->header = header;

73 return soap;

74 }

75

76

77 //釋放函數(shù)

78 void onvif_soap_delete(struct soap *soap)

79 {

80 soap_destroy(soap); // remove deserialized class instances (c++ only)

81 soap_end(soap); // clean up deserialized data (except class instances) and temporary data

82 soap_free(soap); // reset and deallocate the context created with soap_new or soap_copy

83 }

84

85

86 //鑒權(quán)

87 static int onvif_setauthinfo(struct soap *soap, const char *username, const char *password)

88 {

89 int result = 0;

90 if((null != username) || (null != password)){

91 soap_wsse_add_usernametokendigest(soap, null, username, password);

92 }else{

93 printf("un etauth\n");

94 result = -1;

95 }

96

97 return result;

98 }

99

100

101

102 int main(int argc,char *argv[])

103 {

104 int ret = 0;

105 char sercer_addr[] = "http://172.168.0.211/onvif/device_service"; //設(shè)備搜索得到的地址

106

107 struct soap_env__header header;

108 struct soap* soap = onvif_initsoap(&header, null, null, 5);

109

110 struct _tds__getcapabilities *req;

111 struct _tds__getcapabilitiesresponse *response;

112

113 if(null == (req = (struct _tds__getcapabilities *)calloc(1,sizeof(struct _tds__getcapabilities))))

114 {

115 printf("calloc is error \n");

116 ret = -1;

117 return ret;

118 }else{

119 req->__sizecategory = 1;

120 req->category = (enum tt__capabilitycategory *)soap_malloc(soap, sizeof(int));

121 *(req->category) = (enum tt__capabilitycategory)5; //5表示：tt__capabilitycategory__media

122

123 onvif_setauthinfo(soap,"admin","hk123456"); //鑒權(quán)，輸入攝像頭的用戶名、密碼

124 ret = soap_call___tds__getcapabilities(soap, sercer_addr, null,req, response);

125 if(soap->error){

126 ret = -1;

127 printf("soap error: %d, %s, %s\n", soap->error, *soap_faultcode(soap), *soap_faultstring(soap));

128 return ret;

129 }else{;

130 if(null != response->capabilities)

131 {

132 if (response->capabilities->media != null){

133 if (response->capabilities->media->xaddr != null){

134 printf(" media_addr: %s \n", response->capabilities->media->xaddr);

135 }

136 }

137 }

138 }

139 }

140

141 if(null != req)

142 {

143 free(req);

144 req = null;

145 }

146

147 onvif_soap_delete(soap);

148 return ret;

149 }

在編譯之前要把：stdsoap2.c ?soapc.c ?md5.c dom.c mecevp.c smdevp.c threads.c wsaapi.c wsseapi.c soapclient.c? ?把這些.c 還有有些配套的.h? 拷貝到當(dāng)前工作目錄下。

如果出現(xiàn)以下錯誤要在編譯的時候加：-dwith_openssl

/tmp/cccao7u5.o：在函數(shù)‘soap_mec_init’中：

mecevp.c:(.text+0xe)：對‘soap_ssl_init’未定義的引用

/tmp/ccv2yl3q.o：在函數(shù)‘soap_smd_init’中：

smdevp.c:(.text+0x24c)：對‘soap_ssl_init’未定義的引用

編譯：gcc -o test get_uri_test.c stdsoap2.c soapc.c md5.c dom.c mecevp.c smdevp.c threads.c wsaapi.c wsseapi.c soapclient.c -i import/ -dwith_openssl -lssl -lcrypto -ldl -pthread

結(jié)果：成功得到我們想要的媒體地址

總結(jié)

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