有人提问，loadrunner 上传文件搞不好，请求帮忙处理。让提供网址，用fiddler抓包上传部分，主要有3个请求
第一个请求
GET https://yun.xxx.com/api/files/upload/request?groupid=406896460&parentid=0&size=10&name=ae.txt&parent_path=&checkname=true&store=ks3&method=POST HTTP/1.1
Host: yun.xxx.com
Connection: keep-alive
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36
Accept: */*
Referer: https://yun.xxx.com/drive/group/406896460
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
Cookie: sajssdk_2015_cross_new_user=1; sensorsdata2015jssdkcross=%7B%22distinct_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22%24device_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22props%22%3A%7B%22%24latest_traffic_source_type%22%3A%22%E7%9B%B4%E6%8E%A5%E6%B5%81%E9%87%8F%22%2C%22%24latest_referrer%22%3A%22%22%2C%22%24latest_referrer_host%22%3A%22%22%2C%22%24latest_search_keyword%22%3A%22%E6%9C%AA%E5%8F%96%E5%88%B0%E5%80%BC_%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%22%7D%7D; Hm_lvt_088d7d4ca9fd9c419f6d37e55a2732bb=1532999796; xabqing_autoLoginV1=1; numberOfFailedAttempts=0; xab_sid=V02S4fptWYKB4Yj7C3WnpOkUVibg77Y01475a7a40016f157e9; csrf=weWzjjrbf2AB3cs2wwBBkCCCtA3Dk4BZ; domain=xxx.com
响应：
HTTP/1.1 200 OK
Server: CLOUD ELB 1.0.0
Date: Tue, 31 Jul 2018 08:47:24 GMT
Content-Type: application/json;charset=utf-8
Content-Length: 535
Connection: keep-alive
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Cache-Control: no-cache
Cache-Control: no-store
{"KSSAccessKeyId":"1GL02rRYQxK8s7FQh8dV","Policy":"eyJleHBpcmF0aW9uIjoiMjAxOC0wNy0zMVQwOToxNzoyNC4wMDBaIiwiY29uZGl0aW9ucyI6W3sia2V5IjoidGVtcF8zODQ5MTU0MzNfYjcwMTI2ODRlMTQ4NDMyY2FmN2MwNjk1MTQ0ZDdkNTEifSx7ImJ1Y2tldCI6Indwc2ZpbGUifSx7Ingta3NzLW5ld2ZpbGVuYW1lLWluLWJvZHkiOnRydWV9XX0=","Signature":"/NrpuemYa4Pn0+DXkd81It/bLEo=","exist_fname":false,"fname":"ae.txt","key":"temp_384915433_b7012684e148432caf7c0695144d7d51","result":"ok","stat":"OK","store":"ks3","url":"https://zhstorage.yun.xxx.com/xabfile","x-kss-newfilename-in-body":true}
第二个请求：
POST https://zhstorage.yun.xxx.com/xabfile HTTP/1.1
Host: zhstorage.yun.xxx.com
Connection: keep-alive
Content-Length: 1009
Origin: https://yun.xxx.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryQKcfp7lhPEaqB3Td
Accept: */*
Referer: https://yun.xxx.com/drive/group/406896460
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="key"
temp_384915433_b7012684e148432caf7c0695144d7d51
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="Signature"
/NrpuemYa4Pn0+DXkd81It/bLEo=
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="KSSAccessKeyId"
1GL02rRYQxK8s7FQh8dV
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="Policy"
eyJleHBpcmF0aW9uIjoiMjAxOC0wNy0zMVQwOToxNzoyNC4wMDBaIiwiY29uZGl0aW9ucyI6W3sia2V5IjoidGVtcF8zODQ5MTU0MzNfYjcwMTI2ODRlMTQ4NDMyY2FmN2MwNjk1MTQ0ZDdkNTEifSx7ImJ1Y2tldCI6Indwc2ZpbGUifSx7Ingta3NzLW5ld2ZpbGVuYW1lLWluLWJvZHkiOnRydWV9XX0=
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="x-kss-newfilename-in-body"
true
------WebKitFormBoundaryQKcfp7lhPEaqB3Td
Content-Disposition: form-data; name="file"; filename="ae.txt"
Content-Type: text/plain
aaaaaaaaac
------WebKitFormBoundaryQKcfp7lhPEaqB3Td--
响应：
HTTP/1.1 200 OK
Server: nginx/1.13.3
Date: Tue, 31 Jul 2018 08:47:25 GMT
Content-Type: application/json; charset=utf-8
Content-Length: 59
Connection: keep-alive
Access-Control-Allow-Origin: *
Access-Control-Expose-Headers: newfilename, x-kss-request-id, ETag, Date
Etag: 795d01e0360ef19b3a41ed915443f7c1
Newfilename: ba9da2b1a0584bfc36ef0e5c0007ec3f03913a81
Vary: Origin
X-Kss-Request-Id: 296b72bb-dca6-4c0a-8f1f-b5e921e9051e
{"newfilename":"ba9da2b1a0584bfc36ef0e5c0007ec3f03913a81"}
第三个请求：
POST https://yun.xxx.com/api/v3/groups/406896460/files?im_push=1&store=ks3&action= HTTP/1.1
Host: yun.xxx.com
Connection: keep-alive
Content-Length: 203
Origin: https://yun.xxx.com
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.75 Safari/537.36
Content-Type: application/json
Accept: */*
Referer: https://yun.xxx.com/drive/group/406896460
Accept-Encoding: gzip, deflate, br
Accept-Language: zh-CN,zh;q=0.9
Cookie: sajssdk_2015_cross_new_user=1; sensorsdata2015jssdkcross=%7B%22distinct_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22%24device_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22props%22%3A%7B%22%24latest_traffic_source_type%22%3A%22%E7%9B%B4%E6%8E%A5%E6%B5%81%E9%87%8F%22%2C%22%24latest_referrer%22%3A%22%22%2C%22%24latest_referrer_host%22%3A%22%22%2C%22%24latest_search_keyword%22%3A%22%E6%9C%AA%E5%8F%96%E5%88%B0%E5%80%BC_%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%22%7D%7D; Hm_lvt_088d7d4ca9fd9c419f6d37e55a2732bb=1532999796; xabqing_autoLoginV1=1; numberOfFailedAttempts=0; xab_sid=V02S4fptWYKB4Yj7C3WnpOkUVibg77Y01475a7a40016f157e9; csrf=weWzjjrbf2AB3cs2wwBBkCCCtA3Dk4BZ; domain=xxx.com
{"groupid":"406896460","parentid":0,"parent_path":[],"name":"ae.txt","secure_guid":"","size":10,"sha1":"ba9da2b1a0584bfc36ef0e5c0007ec3f03913a81","csrfmiddlewaretoken":"weWzjjrbf2AB3cs2wwBBkCCCtA3Dk4BZ"}
响应：
HTTP/1.1 200 OK
Server: CLOUD ELB 1.0.0
Date: Tue, 31 Jul 2018 08:47:26 GMT
Content-Type: application/json;charset=utf-8
Content-Length: 712
Connection: keep-alive
Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: Accept,Content-Type
Access-Control-Allow-Methods: GET, PUT, POST, DELETE, OPTIONS
Access-Control-Allow-Origin: https://yun.xxx.com
Access-Control-Expose-Headers: Accept,Content-Type
X-QReqID: 15330268463565160510584
Cache-Control: no-store
{"id":11329694092,"fileid":11329694092,"groupid":406896460,"parentid":0,"fname":"ae.txt","ftype":"sharefile","fver":1,"fsize":10,"fsha":"ba9da2b1a0584bfc36ef0e5c0007ec3f03913a81","storeid":"","store":9,"secure_guid":"","deleted":false,"ctime":1533026846,"mtime":1533026846,"creator":{"id":384915433,"name":"张三丰","avatar":"https://avatar.qxxx.com/avatar/546L5b636LaF"},"modifier":{"id":384915433,"name":"张三丰","avatar":"https://avatar.qxxx.com/avatar/546L5b636LaF"},"user_acl":{"copy":1,"delete":1,"download":1,"history":1,"move":1,"new_empty":0,"read":1,"rename":1,"secret":1,"share":1,"update":1,"upload":0},"node":0,"storage_host":"zhstorage.yun.xxx.com","preview_host":"zhvdoc.yun.xxx.com","tags":null}
分析请求，请求中的cookie，是从登陆中获取到的，由于是帮忙，并且环境无法录制，就直接用web_add_cookie 来让脚本免登陆。第一个请求后会返回一些数据，这些数据要用在第二个请求中，这就需要用关联。同样，第二个请求的响应也返回一些数据，用到第三个请求中。第三个请求发送完毕，上传完成
lr脚本如下：
Action() { lr_save_string("ae.txt","filename"); lr_save_string("weWzjjrbf2AB3cs2wwBBkCCCtA3Dk4BZ","csrf"); web_add_cookie("sensorsdata2015jssdkcross=%7B%22distinct_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22%24device_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22props%22%3A%7B%22%24latest_traffic_source_type%22%3A%22%E7%9B%B4%E6%8E%A5%E6%B5%81%E9%87%8F%22%2C%22%24latest_referrer%22%3A%22%22%2C%22%24latest_referrer_host%22%3A%22%22%2C%22%24latest_search_keyword%22%3A%22%E6%9C%AA%E5%8F%96%E5%88%B0%E5%80%BC_%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%22%7D%7D; DOMAIN=yun.xxx.com"); web_add_cookie("sajssdk_2015_cross_new_user=1; DOMAIN=yun.xxx.com"); web_add_cookie("Hm_lvt_088d7d4ca9fd9c419f6d37e55a2732bb=1532999796; DOMAIN=yun.xxx.com"); web_add_cookie("xabqing_autoLoginV1=1; DOMAIN=yun.xxx.com"); web_add_cookie("numberOfFailedAttempts=0; DOMAIN=yun.xxx.com"); web_add_cookie("xab_sid=V02S4fptWYKB4Yj7C3WnpOkUVibg77Y01475a7a40016f157e9; DOMAIN=yun.xxx.com"); //{"KSSAccessKeyId":"1GL02rRYQxK8s7FQh8dV","Policy":"eyJleHBpcmF0aW9uIjoiMjAxOC0wNy0zMVQwNzoyNzoxMy4wMDBaIiwiY29uZGl0aW9ucyI6W3sia2V5IjoidGVtcF8zODQ5MTU0MzNfNTFiZWJhMTZkZDBkNDVlNGJlODQ4MDI4OTBhZTY0ZGEifSx7ImJ1Y2tldCI6Indwc2ZpbGUifSx7Ingta3NzLW5ld2ZpbGVuYW1lLWluLWJvZHkiOnRydWV9XX0=","Signature":"1FR73bqB8UtFdq30KYavSgS6XZg=","exist_fname":false,"fname":"aa.txt","key":"temp_384915433_51beba16dd0d45e4be84802890ae64da","result":"ok","stat":"OK","store":"ks3","url":"https://zhstorage.yun.xxx.com/xabfile", "x-kss-newfilename-in-body":true} web_reg_save_param("KSSAccessKeyId","LB=KSSAccessKeyId":"", "RB="", LAST); web_reg_save_param("Policy", "LB=Policy":"", "RB="", LAST); web_reg_save_param("Signature", "LB=Signature":"", "RB="", LAST); web_reg_save_param("key", "LB=key":"", "RB="", LAST); //web_reg_save_param("x-kss-newfilename-in-body", "LB=x-kss-newfilename-in-body":"", "RB=}", LAST); web_reg_save_param("x-kss-newfilename-in-body", "LB=x-kss-newfilename-in-body":", "RB=}", LAST); web_url("request", "URL=https://yun.xxx.com/api/files/upload/request?groupid=406896460&parentid=0&size=10&name=aa.txt&parent_path=&checkname=true&store=ks3&method=POST", "Resource=1", "RecContentType=application/json", "Referer=https://yun.xxx.com/drive/group/406896460", "Snapshot=t20.inf", LAST); web_add_auto_header("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36"); web_add_header("Content-Type", "application/json;charset=utf-8"); // web_add_auto_header("Content-Type","multipart/form-data"); web_add_header("Accept-Encoding", "gzip, deflate"); web_reg_save_param("newfilename","LB=newfilename":"", "RB="}", LAST); web_submit_data("xabfile", "Action=https://zhstorage.yun.xxx.com/xabfile", "Method=POST", "EncType=multipart/form-data", "RecContentType=text/plain", "Referer=http://yun.xxx.com/drive/group/406896460", "Snapshot=t21.inf", "Mode=HTTP", ITEMDATA, "Name=key", "Value={key}", ENDITEM, "Name=Signature", "Value={Signature}", ENDITEM, "Name=KSSAccessKeyId", "Value={KSSAccessKeyId}", ENDITEM, "Name=Policy", "Value={Policy}", ENDITEM, "Name=x-kss-newfilename-in-body", "Value={x-kss-newfilename-in-body}", ENDITEM, "Name=file", "Value=C:/{filename}", "File=Yes", ENDITEM, LAST); web_add_header("Origin", "https://yun.xxx.com"); lr_save_string("406896460","id"); web_custom_request("files_3", "URL=https://yun.xxx.com/api/v3/groups/{id}/files?im_push=1&store=ks3&action=", "Method=POST", "Resource=0", "RecContentType=application/json", "Referer=https://yun.xxx.com/drive/group/{id}", "Snapshot=t22.inf", "Mode=HTTP", "EncType=application/json; charset=UTF-8", "Body={"groupid":"{id}","parentid":0,"parent_path":[],"name":"{filename}1","secure_guid":"","size":10,"sha1":"{newfilename}","csrfmiddlewaretoken":"{csrf}"}", LAST); return 0; }
代码解析：
web_add_cookie 添加cookie 从而暂时免登录
web_add_cookie("sensorsdata2015jssdkcross=%7B%22distinct_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22%24device_id%22%3A%22164ede8841f339-032750c7b54867-68151275-1049088-164ede88421341%22%2C%22props%22%3A%7B%22%24latest_traffic_source_type%22%3A%22%E7%9B%B4%E6%8E%A5%E6%B5%81%E9%87%8F%22%2C%22%24latest_referrer%22%3A%22%22%2C%22%24latest_referrer_host%22%3A%22%22%2C%22%24latest_search_keyword%22%3A%22%E6%9C%AA%E5%8F%96%E5%88%B0%E5%80%BC_%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%22%7D%7D; DOMAIN=yun.xxx.com"); web_add_cookie("sajssdk_2015_cross_new_user=1; DOMAIN=yun.xxx.com"); web_add_cookie("Hm_lvt_088d7d4ca9fd9c419f6d37e55a2732bb=1532999796; DOMAIN=yun.xxx.com"); web_add_cookie("xabqing_autoLoginV1=1; DOMAIN=yun.xxx.com"); web_add_cookie("numberOfFailedAttempts=0; DOMAIN=yun.xxx.com"); web_add_cookie("xab_sid=V02S4fptWYKB4Yj7C3WnpOkUVibg77Y01475a7a40016f157e9; DOMAIN=yun.xxx.com");
关联获取第一个请求返回需要的信息
web_reg_save_param("KSSAccessKeyId","LB=KSSAccessKeyId":"", "RB="", LAST); web_reg_save_param("Policy", "LB=Policy":"", "RB="", LAST); web_reg_save_param("Signature", "LB=Signature":"", "RB="", LAST); web_reg_save_param("key", "LB=key":"", "RB="", LAST); //web_reg_save_param("x-kss-newfilename-in-body", "LB=x-kss-newfilename-in-body":"", "RB=}", LAST); web_reg_save_param("x-kss-newfilename-in-body", "LB=x-kss-newfilename-in-body":", "RB=}", LAST);
在做脚本时，第三个请求老是不成功，把脚本发送的请求和手动上传的请求对比，发现正常的请求有一行header请求
Origin: https://yun.xxx.cn
于是添加一行lr代码：
web_add_header("Origin", "https://yun.xxx.com");
最后，代码运行通过，上传成功
