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(C) URL Encoding Charset in POST Query ParamsDemonstrates how to control the URL encoding charset in POST query params. Note: This example requires Chilkat v11.0.0 or greater.
#include <C_CkStringBuilder.h> #include <C_CkHttp.h> #include <C_CkHttpRequest.h> #include <C_CkHttpResponse.h> void ChilkatSample(void) { BOOL success; const char *nameWin1252Encoded; HCkStringBuilder sb; HCkHttp http; HCkHttpRequest req; HCkHttpResponse resp; success = FALSE; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // We have the string "MÆRSK". nameWin1252Encoded = "M%E6RSK"; sb = CkStringBuilder_Create(); success = CkStringBuilder_DecodeAndAppend(sb,nameWin1252Encoded,"url","windows-1252"); http = CkHttp_Create(); // We're setting the session log filename so we can see the exact request sent. CkHttp_putSessionLogFilename(http,"qa_output/sessionLog.txt"); // First demonstrate a simple application/x-www-form-urlencoded POST req = CkHttpRequest_Create(); // Set the Charset = "utf-8" to cause URL encoding to use utf-8. CkHttpRequest_putCharset(req,"utf-8"); CkHttpRequest_AddParam(req,"name",CkStringBuilder_getAsString(sb)); CkHttpRequest_putHttpVerb(req,"POST"); CkHttpRequest_putHttpVerb(req,"POST"); CkHttpRequest_putContentType(req,"application/x-www-form-urlencoded"); resp = CkHttpResponse_Create(); success = CkHttp_HttpReq(http,"https://www.chilkatsoft.com/something",req,resp); if (success == FALSE) { printf("%s\n",CkHttp_lastErrorText(http)); CkStringBuilder_Dispose(sb); CkHttp_Dispose(http); CkHttpRequest_Dispose(req); CkHttpResponse_Dispose(resp); return; } // This is the request that is sent: // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6) // POST /something HTTP/1.1 // Host: www.chilkatsoft.com // Content-Type: application/x-www-form-urlencoded // Content-Length: 15 // // name=M%C3%A6RSK // --------------------------------------------------------------- // Switch to windows-1252 CkHttpRequest_putCharset(req,"windows-1252"); CkHttpRequest_putHttpVerb(req,"POST"); CkHttpRequest_putContentType(req,"application/x-www-form-urlencoded"); success = CkHttp_HttpReq(http,"https://www.chilkatsoft.com/something",req,resp); if (success == FALSE) { printf("%s\n",CkHttp_lastErrorText(http)); CkStringBuilder_Dispose(sb); CkHttp_Dispose(http); CkHttpRequest_Dispose(req); CkHttpResponse_Dispose(resp); return; } // This is the request that is sent: // Notice that windows-1252 is used in the query param (the letter 'Æ' is %E6) // POST /something HTTP/1.1 // Host: www.chilkatsoft.com // Content-Type: application/x-www-form-urlencoded // Content-Length: 12 // // name=M%E6RSK // --------------------------------------------------------------- // Let's do the same with HttpSReq, switching back to utf-8 CkHttpRequest_putPath(req,"/something"); CkHttpRequest_putHttpVerb(req,"POST"); CkHttpRequest_putContentType(req,"application/x-www-form-urlencoded"); CkHttpRequest_putCharset(req,"utf-8"); success = CkHttp_HttpSReq(http,"www.chilkatsoft.com",443,TRUE,req,resp); if (success == FALSE) { printf("%s\n",CkHttp_lastErrorText(http)); CkStringBuilder_Dispose(sb); CkHttp_Dispose(http); CkHttpRequest_Dispose(req); CkHttpResponse_Dispose(resp); return; } // This is the request that is sent: // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6) // POST /something HTTP/1.1 // Host: www.chilkatsoft.com // Content-Type: application/x-www-form-urlencoded // Content-Length: 15 // // name=M%C3%A6RSK // --------------------------------------------------------------- // Let's do a PostXml where the query params are in the HTTP request start line, // and the Content-Type is text/xml where the body of the request is XML. CkHttpRequest_putPath(req,"/something"); CkHttpRequest_putHttpVerb(req,"POST"); CkHttpRequest_putContentType(req,"text/xml"); success = CkHttpRequest_LoadBodyFromString(req,"<test>123</test>","utf-8"); CkHttpRequest_putCharset(req,"utf-8"); // Remember... our request object still contains the query param added in the above call to AddParam.new HttpResponse resp; success = CkHttp_HttpSReq(http,"www.chilkatsoft.com",443,TRUE,req,resp); if (success == FALSE) { printf("%s\n",CkHttp_lastErrorText(http)); CkStringBuilder_Dispose(sb); CkHttp_Dispose(http); CkHttpRequest_Dispose(req); CkHttpResponse_Dispose(resp); return; } // This is the request that is sent: // Notice that utf-8 is used in the query param (the letter 'Æ' is %C3%A6) // POST /something?name=M%C3%A6RSK HTTP/1.1 // Host: www.chilkatsoft.com // Content-Type: text/xml // Content-Length: 16 // // <test>123</test> CkStringBuilder_Dispose(sb); CkHttp_Dispose(http); CkHttpRequest_Dispose(req); CkHttpResponse_Dispose(resp); } |
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