[libmicrohttpd] Post request / upload_data / received request data packe

Hi,

I'm new in libmicrohttpd and i need some advice:

I try developp a light REST webserver and i test it with Jmter or soap_ui.

When i send packet with http/1.1 protcol or http/1.0, always i received the data by packet and it loose some data between a packet and other packet.

Here my code for testing:

#include <sys/types.h>

#include <sys/select.h>

#include <sys/socket.h>

#include <microhttpd.h>

#define MAX_ANSWER_LENGTH 100000

#define PORT 8890

static char *empty_answer="";

#define JSON_CONTENT_TYPE "application/json; charset=utf-8"

typedef enum {

URL_COURSE,

URL_MAX=URL_COURSE,

} CommandNum;

typedef struct _Command

{

char *url;

CommandNum num;

} Command;

Command commands[]= {

{"/interface1/course", URL_COURSE}

};

#define MHD_HTTP_VERSION_1_0 "HTTP/1.0"

//#define MHD_HTTP_VERSION_1_1 "HTTP/1.1"

const char *greetingpage = "<html><body><h1>Welcome, %s!</center></h1></body></html>\n";

static int ii =0;

static int connection_num=0;

char LesDatas[200001];

typedef struct _post_data

{

long connection;

int index;

char user_name[20 + 1];

int user_id;

char user_type;

long call_nbr;

char ticket[ 16 ];

char phone_nbr[ 40 + 1 ];

char *received_data;

int http_status;

int status_code;

int error_code;

char answer[MAX_ANSWER_LENGTH+1];

} PostData;

static int

answer_to_connection (void *cls, struct MHD_Connection *connection,

const char *url, const char *method,

const char *version, const char *upload_data,

size_t *upload_data_size, void **con_cls)

{

struct MHD_Response * response;

int ret;

printf("je passe en 00 ii '%d'\n",ii);

if (NULL == *con_cls)

{

memset(LesDatas, 0, sizeof(LesDatas));

printf("je passe ici 0 11 \n");

*con_cls = connection;

return MHD_YES;

}

/*if (NULL == *con_cls)

{

connection_num = (++connection_num) % 1000000;

PostData *data="">

data = "" *) malloc(sizeof(PostData));

if (data="">

{

printf("je passse icic 1 \n");

response=MHD_create_response_from_buffer (strlen(empty_answer), empty_answer, MHD_RESPMEM_PERSISTENT);

ret=MHD_add_response_header (response, MHD_HTTP_HEADER_CONTENT_TYPE, JSON_CONTENT_TYPE);

ret=MHD_queue_response (connection, MHD_HTTP_INTERNAL_SERVER_ERROR, response);

MHD_destroy_response (response);

return ret;

}

memset(data, 0, sizeof(PostData));

data->http_status=MHD_HTTP_OK;

data->connection = connection_num;

*con_cls = (void *) data;

printf("*con_cls '%s' \n",*con_cls);

printf("data.answer '%s' MHD_YES '%d' \n",data->answer,MHD_YES);

return MHD_YES;

}*/

if (*upload_data_size != 0)

{

printf("je suis ici 22 \n");

ii++;

printf("url '%s'\n",url);

printf("strlen(upload_data) '%d' \n",strlen(upload_data));

printf("'%d' upload_data '%s' \n",ii,upload_data);

printf("method '%s' \n",method);

printf("version '%s' \n",version);

strcat(LesDatas,upload_data);

printf("je suis ici 22.1 \n");

*upload_data_size = 0;

//free(upload_data_size);

//upload_data_size=NULL;

return MHD_YES;

}

else

{

printf("je suis ici 33 \n");

printf("strlen(LesDatas) '%d' \n",strlen(LesDatas));

printf("LesDatas'%s' \n",LesDatas);

// *ptr = NULL; /* clear context pointer */

response = MHD_create_response_from_buffer (strlen(greetingpage), (void *) greetingpage, MHD_RESPMEM_MUST_COPY);

ret = MHD_queue_response(connection,MHD_HTTP_OK,response);

MHD_destroy_response(response);

printf("je sort iIICICIIII 10 ret '%d' \n",ret);

return MHD_YES; //ret

printf("je suis sortie avant \n");

return ret;

}

int

main ()

{

struct MHD_Daemon *daemon;

/*daemon = MHD_start_daemon (MHD_USE_PEDANTIC_CHECKS, PORT, NULL, NULL,

&answer_to_connection, NULL, MHD_OPTION_END);

#define MHD_HTTP_VERSION_1_0 "HTTP/1.0"

daemon = MHD_start_daemon (MHD_USE_THREAD_PER_CONNECTION, PORT, NULL, NULL,

&answer_to_connection, NULL, MHD_OPTION_END);

if (NULL == daemon)

return 1;

getchar ();

MHD_stop_daemon (daemon);

return 0;

}

Here my request:

Here this is what libmicrohttpd receive:

strlen(upload_data) '2896'

'1' upload_data '{"clientId":4,"uuid":"0c2e1816-d8bc-4261-8e8f-d8cfc90d5613","nU i":1,"courses":[{"status":"NONASSIG","date":"1706","heure":"17h13","telephoneApp elant":"0102030405","passager":{"nom":"Mr Passenger Name","telephone":"060708090 0","nbrTaxi":"1"},"classeCourse":"G","attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNN","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPc kupZone":641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup":"1","ciNbrInGrp":"1" ,"comment":"A cotÃ© Franprixblabla","faisceau":"G","fleet":"A","accountTypeNumbe r":"52","clientType":"G7","priority":40,"adresse":{"numRue":2,"suffixeRue":"","t ypeRue":"ALL","nomRue":"BIENVENUE","codePostal":"","ville":"NOISY LE GRAND","ciL ambx":615122,"ciLamby":2426686,"formattedAddress":"2 ALL BIENVENUE, NOISY LE GRA ND"},"abonne":{"code":"SVIGP","releve":"N","prevenirGR":"N","prevenirSurPlace":" X","name":"","receiptNumber":"ZARE"}},{"status":"NONASSIG","date":"1706","heure" :"17h13","telephoneAppelant":"0102030405","passager":{"nom":"Mr Passenger Name", "telephone":"0607080900","nbrTaxi":"1"},"classeCourse":"G","attributs":{"ciVehAt tr":"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNN NNNN"},"zonage":{"ciPckupZone":641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup ":"1","ciNbrInGrp":"1","comment":"A cotÃ© Franprixblabla","faisceau":"G","fleet" :"A","accountTypeNumber":"52","clientType":"G7","priority":40,"adresse":{"numRue ":2,"suffixeRue":"","typeRue":"ALL","nomRue":"BIENVENUE","codePostal":"","ville" :"NOISY LE GRAND","ciLambx":615122,"ciLamby":2426686,"formattedAddress":"2 ALL B IENVENUE, NOISY LE GRAND"},"abonne":{"code":"SVIGP","releve":"N","prevenirGR":"N ","prevenirSurPlace":"X","name":"","receiptNumber":"ZARE"}},{"status":"NONASSIG" ,"date":"1706","heure":"17h13","telephoneAppelant":"0102030405","passager":{"nom ":"Mr Passenger Name","telephone":"0607080900","nbrTaxi":"1"},"classeCourse":"G" ,"attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN","ciDrvAttr":"NONONN NNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPckupZone":641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup":"1","ciNbrInGrp":"1","comment":"A cotÃ© Franprixblabla", "faisceau":"G","fleet":"A","accountTypeNumber":"52","clientType":"G7","priority" :40,"adresse":{"numRue":2,"suffixeRue":"","typeRue":"ALL","nomRue":"BIENVENUE"," codePostal":"","ville":"NOISY LE GRAND","ciLambx":615122,"ciLamby":2426686,"form attedAddress":"2 ALL BIENVENUE, NOISY LE GRAND"},"abonne":{"code":"SVIGP","relev e":"N","prevenirGR":"N","prevenirSurPlace":"X","name":"","receiptNumber":"ZARE"} },{"status":"NONASSIG","date":"1706","heure":"17h13","telephoneAppelant":"010203 0405","passager":{"nom":"Mr Passenger Name","telephone":"0607080900","nbrTaxi":" 1"},"classeCourse":"G","attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN N","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPckupZone":641," ciPckupDesc":"NOISY LE GRAND"},"c'

method 'POST'

version 'HTTP/1.1'

je suis ici 22.1

je passe en 00 ii '1'

je suis ici 22

url '/interface1/course'

strlen(upload_data) '4582'

'2' upload_data 'iPosInGroup":"1","ciNbrInGrp":"1","comment":"A cotÃ© Franprixbl abla","faisceau":"G","fleet":"A","accountTypeNumber":"52","clientType":"G7","pri ority":40,"adresse":{"numRue":2,"suffixeRue":"","typeRue":"ALL","nomRue":"BIENVE NUE","codePostal":"","ville":"NOISY LE GRAND","ciLambx":615122,"ciLamby":2426686 ,"formattedAddress":"2 ALL BIENVENUE, NOISY LE GRAND"},"abonne":{"code":"SVIGP", "releve":"N","prevenirGR":"N","prevenirSurPlace":"X","name":"","receiptNumber":" ZARE"}},{"status":"NONASSIG","date":"1706","heure":"17h13","telephoneAppelant":" 0102030405","passager":{"nom":"Mr Passenger Name","telephone":"0607080900","nbrT axi":"1"},"classeCourse":"G","attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNN","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPckupZone" :641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup":"1","ciNbrInGrp":"1","commen t":"A cotÃ© Franprixblabla","faisceau":"G","fleet":"A","accountTypeNumber":"52", "clientType":"G7","priority":40,"adresse":{"numRue":2,"suffixeRue":"","typeRue": "ALL","nomRue":"BIENVENUE","codePostal":"","ville":"NOISY LE GRAND","ciLambx":61 5122,"ciLamby":2426686,"formattedAddress":"2 ALL BIENVENUE, NOISY LE GRAND"},"ab onne":{"code":"SVIGP","releve":"N","prevenirGR":"N","prevenirSurPlace":"X","name ":"","receiptNumber":"ZARE"}},{"status":"NONASSIG","date":"1706","heure":"17h13" ,"telephoneAppelant":"0102030405","passager":{"nom":"Mr Passenger Name","telepho ne":"0607080900","nbrTaxi":"1"},"classeCourse":"G","attributs":{"ciVehAttr":"NNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNN","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"}," zonage":{"ciPckupZone":641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup":"1","c iNbrInGrp":"1","comment":"A cotÃ© Franprixblabla","faisceau":"G","fleet":"A","ac countTypeNumber":"52","clientType":"G7","priority":40,"adresse":{"numRue":2,"suf fixeRue":"","typeRue":"ALL","nomRue":"BIENVENUE","codePostal":"","ville":"NOISY LE GRAND","ciLambx":615122,"ciLamby":2426686,"formattedAddress":"2 ALL BIENVENUE , NOISY LE GRAND"},"abonne":{"code":"SVIGP","releve":"N","prevenirGR":"N","preve nirSurPlace":"X","name":"","receiptNumber":"ZARE"}},{"status":"NONASSIG","date": "1706","heure":"17h13","telephoneAppelant":"0102030405","passager":{"nom":"Mr Pa ssenger Name","telephone":"0607080900","nbrTaxi":"1"},"classeCourse":"G","attrib uts":{"ciVehAttr":"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN","ciDrvAttr":"NONONNNNNNNNNN NNNNNNNNNNNNNNNNNN"},"zonage":{"ciPckupZone":641,"ciPckupDesc":"NOISY LE GRAND"} ,"ciPosInGroup":"1","ciNbrInGrp":"1","comment":"A cotÃ© Franprixblabla","faiscea u":"G","fleet":"A","accountTypeNumber":"52","clientType":"G7","priority":40,"adr esse":{"numRue":2,"suffixeRue":"","typeRue":"ALL","nomRue":"BIENVENUE","codePost al":"","ville":"NOISY LE GRAND","ciLambx":615122,"ciLamby":2426686,"formattedAdd ress":"2 ALL BIENVENUE, NOISY LE GRAND"},"abonne":{"code":"SVIGP","releve":"N"," prevenirGR":"N","prevenirSurPlace":"X","name":"","receiptNumber":"ZARE"}},{"stat us":"NONASSIG","date":"1706","heure":"17h13","telephoneAppelant":"0102030405","p assager":{"nom":"Mr Passenger Name","telephone":"0607080900","nbrTaxi":"1"},"cla sseCourse":"G","attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN","ciDr vAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPckupZone":641,"ciPckupD esc":"NOISY LE GRAND"},"ciPosInGroup":"1","ciNbrInGrp":"1","comment":"A cotÃ© Fr anprixblabla","faisceau":"G","fleet":"A","accountTypeNumber":"52","clientType":" G7","priority":40,"adresse":{"numRue":2,"suffixeRue":"","typeRue":"ALL","nomRue" :"BIENVENUE","codePostal":"","ville":"NOISY LE GRAND","ciLambx":615122,"ciLamby" :2426686,"formattedAddress":"2 ALL BIENVENUE, NOISY LE GRAND"},"abonne":{"code": "SVIGP","releve":"N","prevenirGR":"N","prevenirSurPlace":"X","name":"","receiptN umber":"ZARE"}},{"status":"NONASSIG","date":"1706","heure":"17h13","telephoneApp elant":"0102030405","passager":{"nom":"Mr Passenger Name","telephone":"060708090 0","nbrTaxi":"1"},"classeCourse":"G","attributs":{"ciVehAttr":"NNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNN","ciDrvAttr":"NONONNNNNNNNNNNNNNNNNNNNNNNNNNNN"},"zonage":{"ciPc kupZone":641,"ciPckupDesc":"NOISY LE GRAND"},"ciPosInGroup":"1","ciNbrInGrp":"1" ,"comment":"A cotÃ© Franprixblabla","faisceau":"G","fleet":"A","accountTypeNumbe r":"52","clientType":"G7","priority":40,"adresse":{"numRue":2,"suffixeRue":"","t ypeRue":"ALL","nomRue":"BIENVENUE","codePostal":"","ville":"NOISY LE GRAND","ciL ambx":615122,"ciLamby":2426686,"formattedAddress":"2 ALL BIENVENUE, NOISY LE GRA ND"},"abonne":{"code":"SVIGP","releve":"N","prevenirGR":"N","prevenirSurPlace":" X","name":"","receiptNumber":"ZARE"}}]}'

method 'POST'

version 'HTTP/1.1'

I want libmicrohttpd receive and read one single packet from my request. And my request can have 10000 characters.

Thanks for your help

From:	Ludovic Coralie
Subject:	[libmicrohttpd] Post request / upload_data / received request data packet
Date:	Wed, 24 Jun 2015 15:32:21 +0200