static int
test_nested_multipart ()
{
struct MHD_Connection connection;
struct MHD_HTTP_Header header;
struct MHD_PostProcessor *pp;
unsigned int want_off = FORM_NESTED_START;
int i;
int delta;
size_t size;
memset (&connection, 0, sizeof (struct MHD_Connection));
memset (&header, 0, sizeof (struct MHD_HTTP_Header));
connection.headers_received = &header;
header.header = MHD_HTTP_HEADER_CONTENT_TYPE;
header.value =
MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA ", boundary=AaB03x";
header.kind = MHD_HEADER_KIND;
pp = MHD_create_post_processor (&connection,
1024, &value_checker, &want_off);
i = 0;
size = strlen (FORM_NESTED_DATA);
while (i < size)
{
delta = 1 + MHD_random_ () % (size - i);
MHD_post_process (pp, &FORM_NESTED_DATA[i], delta);
i += delta;
}
MHD_destroy_post_processor (pp);
if (want_off != FORM_NESTED_END)
return 4;
return 0;
}
/**
* Function called whenever a request was completed.
* Used to clean up 'struct UploadContext' objects.
*
* @param cls client-defined closure, NULL
* @param connection connection handle
* @param con_cls value as set by the last call to
* the MHD_AccessHandlerCallback, points to NULL if this was
* not an upload
* @param toe reason for request termination
*/
static void
response_completed_callback (void *cls,
struct MHD_Connection *connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
struct UploadContext *uc = *con_cls;
if (NULL == uc)
return; /* this request wasn't an upload request */
if (NULL != uc->pp)
{
MHD_destroy_post_processor (uc->pp);
uc->pp = NULL;
}
if (-1 != uc->fd)
{
(void) close (uc->fd);
if (NULL != uc->filename)
{
fprintf (stderr,
"Upload of file `%s' failed (incomplete or aborted), removing file.\n",
uc->filename);
(void) unlink (uc->filename);
}
}
if (NULL != uc->filename)
free (uc->filename);
free (uc);
}
static int
test_empty_value ()
{
struct MHD_Connection connection;
struct MHD_HTTP_Header header;
struct MHD_PostProcessor *pp;
unsigned int want_off = URL_EMPTY_VALUE_START;
int i;
int delta;
size_t size;
memset (&connection, 0, sizeof (struct MHD_Connection));
memset (&header, 0, sizeof (struct MHD_HTTP_Header));
connection.headers_received = &header;
header.header = MHD_HTTP_HEADER_CONTENT_TYPE;
header.value = MHD_HTTP_POST_ENCODING_FORM_URLENCODED;
header.kind = MHD_HEADER_KIND;
pp = MHD_create_post_processor (&connection,
1024, &value_checker, &want_off);
i = 0;
size = strlen (URL_EMPTY_VALUE_DATA);
while (i < size)
{
delta = 1 + MHD_random_ () % (size - i);
MHD_post_process (pp, &URL_EMPTY_VALUE_DATA[i], delta);
i += delta;
}
MHD_destroy_post_processor (pp);
if (want_off != URL_EMPTY_VALUE_END)
return 8;
return 0;
}
void CWebServer::FinalizePostDataProcessing(ConnectionHandler *connectionHandler) const
{
if (connectionHandler->postprocessor == nullptr)
return;
MHD_destroy_post_processor(connectionHandler->postprocessor);
}
static int
test_multipart_splits ()
{
struct MHD_Connection connection;
struct MHD_HTTP_Header header;
struct MHD_PostProcessor *pp;
unsigned int want_off;
size_t size;
size_t splitpoint;
size = strlen (FORM_DATA);
for (splitpoint = 1; splitpoint < size; splitpoint++)
{
want_off = FORM_START;
memset (&connection, 0, sizeof (struct MHD_Connection));
memset (&header, 0, sizeof (struct MHD_HTTP_Header));
connection.headers_received = &header;
header.header = MHD_HTTP_HEADER_CONTENT_TYPE;
header.value =
MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA ", boundary=AaB03x";
header.kind = MHD_HEADER_KIND;
pp = MHD_create_post_processor (&connection,
1024, &value_checker, &want_off);
MHD_post_process (pp, FORM_DATA, splitpoint);
MHD_post_process (pp, &FORM_DATA[splitpoint], size - splitpoint);
MHD_destroy_post_processor (pp);
if (want_off != FORM_END)
return (int) splitpoint;
}
return 0;
}
static void
completed_cb (void *cls,
struct MHD_Connection *connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
struct MHD_PostProcessor *pp = *con_cls;
if (NULL != pp)
MHD_destroy_post_processor (pp);
*con_cls = NULL;
}
static void request_completed(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe)
{
//puts("completed");
pair *p = (pair*)*con_cls;
if(NULL != p) {
MHD_destroy_post_processor(p->first);
if(p->second)
delete p->second;
delete p;
*con_cls = NULL;
}
}
int handle(Request* request, MHD_Connection* connection,
const char* url, const char* method,
const char* upload_data, size_t* upload_data_size) override {
UploadContext* uc = request->fUploadContext;
// New connection
if (!uc) {
// TODO make this a method on request
uc = new UploadContext;
uc->connection = connection;
uc->fPostProcessor = MHD_create_post_processor(connection, kBufferSize,
&process_upload_data, uc);
SkASSERT(uc->fPostProcessor);
request->fUploadContext = uc;
return MHD_YES;
}
// in process upload
if (0 != *upload_data_size) {
SkASSERT(uc->fPostProcessor);
MHD_post_process(uc->fPostProcessor, upload_data, *upload_data_size);
*upload_data_size = 0;
return MHD_YES;
}
// end of upload
MHD_destroy_post_processor(uc->fPostProcessor);
uc->fPostProcessor = nullptr;
// parse picture from stream
request->fPicture.reset(
SkPicture::CreateFromStream(request->fUploadContext->fStream.detachAsStream()));
if (!request->fPicture.get()) {
fprintf(stderr, "Could not create picture from stream.\n");
return MHD_NO;
}
// pour picture into debug canvas
request->fDebugCanvas.reset(new SkDebugCanvas(kImageWidth, kImageHeight));
request->fDebugCanvas->drawPicture(request->fPicture);
// clear upload context
delete request->fUploadContext;
request->fUploadContext = nullptr;
return SendTemplate(connection, true, "/");
}
/**
* Callback called upon completion of a request.
* Decrements session reference counter.
*
* @param cls not used
* @param connection connection that completed
* @param con_cls session handle
* @param toe status code
*/
static void
request_completed_callback (void *cls,
struct MHD_Connection *connection,
void **con_cls,
enum MHD_RequestTerminationCode toe)
{
struct Request *request = *con_cls;
if (NULL == request)
return;
if (NULL != request->session)
request->session->rc--;
if (NULL != request->pp)
MHD_destroy_post_processor (request->pp);
free (request);
}
void request_cleanup(
void* cls,
struct MHD_Connection* connection,
void** con_cls,
enum MHD_RequestTerminationCode rtc)
{
STATE state = *con_cls;
if (state != NULL) {
if (strncmp(state->method, MHD_HTTP_METHOD_POST, 25) == 0) {
MHD_destroy_post_processor(state->processor);
if (state->formdatalen > 0) {
free(state->formdata);
}
}
free(state);
*con_cls = NULL;
}
}
// Callback when connection is ended
void Server::request_completed(void *cls, MHD_Connection *connection, void **con_cls, MHD_RequestTerminationCode toe){
struct connection_info_struct *con_info = (connection_info_struct*)*con_cls;
if (NULL == con_info) {
return;
}
if (con_info->fConnectiontype == POST) {
if (NULL != con_info->fPostprocessor) {
MHD_destroy_post_processor(con_info->fPostprocessor);
}
}
delete con_info;
*con_cls = NULL;
}
void HTTPServer::request_completed (void *cls, struct MHD_Connection *connection,
void **con_cls, enum MHD_RequestTerminationCode toe)
{
struct connection_info_struct *con_info = (struct connection_info_struct *) *con_cls;
if (NULL == con_info)
return;
if (con_info->connectiontype == POST)
{
MHD_destroy_post_processor (con_info->postprocessor);
if (con_info->answerstring)
free (con_info->answerstring);
}
free (con_info);
*con_cls = NULL;
}
FUNCTION PRIVATE DEFINITION static void request_completed
(
void* ,
struct MHD_Connection* ,
void** con_cls,
enum MHD_RequestTerminationCode
)
{
Connection_info_struct_t* con_info = reinterpret_cast<Connection_info_struct_t*>(*con_cls);
if (con_info->connectiontype == POST && con_info != NULL)
{
MHD_destroy_post_processor(con_info->postprocessor);
con_info->answerstring.clear();
}
delete con_info;
*con_cls = NULL;
}
static int
ahc_echo (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 **unused)
{
static int eok;
struct MHD_Response *response;
struct MHD_PostProcessor *pp;
int ret;
if (0 != strcmp ("POST", method))
{
printf ("METHOD: %s\n", method);
return MHD_NO; /* unexpected method */
}
pp = *unused;
if (pp == NULL)
{
eok = 0;
pp = MHD_create_post_processor (connection, 1024, &post_iterator, &eok);
if (pp == NULL)
abort ();
*unused = pp;
}
MHD_post_process (pp, upload_data, *upload_data_size);
if ((eok == 3) && (0 == *upload_data_size))
{
response = MHD_create_response_from_buffer (strlen (url),
(void *) url,
MHD_RESPMEM_MUST_COPY);
ret = MHD_queue_response (connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
MHD_destroy_post_processor (pp);
*unused = NULL;
return ret;
}
*upload_data_size = 0;
return MHD_YES;
}
void Webserver::Free (struct MHD_Connection *conn, void **ptr, enum MHD_RequestTerminationCode code)
{
conninfo_t *cp = (conninfo_t *)*ptr;
if (cp != NULL) {
if (cp->conn_arg1 != NULL)
free(cp->conn_arg1);
if (cp->conn_arg2 != NULL)
free(cp->conn_arg2);
if (cp->conn_arg3 != NULL)
free(cp->conn_arg3);
if (cp->conn_arg4 != NULL)
free(cp->conn_arg4);
if (cp->conn_type == CON_POST) {
MHD_destroy_post_processor(cp->conn_pp);
}
free(cp);
*ptr = NULL;
}
}
void MyRequestCompleted(void *cls, struct MHD_Connection *connection, void **con_cls, enum MHD_RequestTerminationCode toe)
{
ServerContext* servctx_v = (ServerContext*)cls;
assert(servctx_v->MagicNumber == 0xbabeface);
ConnContext* conctx = (ConnContext*)*con_cls;
if (conctx->PostProcessor != NULL)
{
puts("[POST REQUEST COMPLETED]");
assert(conctx->Method == HTTPMETHOD_POST);
MHD_destroy_post_processor(conctx->PostProcessor);
conctx->KeyValueMap.clear();
}
else
{
assert(conctx->Method != HTTPMETHOD_POST);
}
delete conctx;
*con_cls = NULL;
}
static int
test_multipart_garbage ()
{
struct MHD_Connection connection;
struct MHD_HTTP_Header header;
struct MHD_PostProcessor *pp;
unsigned int want_off;
size_t size = strlen (FORM_DATA);
size_t splitpoint;
char xdata[size + 3];
/* fill in evil garbage at the beginning */
xdata[0] = '-';
xdata[1] = 'x';
xdata[2] = '\r';
memcpy (&xdata[3], FORM_DATA, size);
size += 3;
size = strlen (FORM_DATA);
for (splitpoint = 1; splitpoint < size; splitpoint++)
{
want_off = FORM_START;
memset (&connection, 0, sizeof (struct MHD_Connection));
memset (&header, 0, sizeof (struct MHD_HTTP_Header));
connection.headers_received = &header;
header.header = MHD_HTTP_HEADER_CONTENT_TYPE;
header.value =
MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA ", boundary=AaB03x";
header.kind = MHD_HEADER_KIND;
pp = MHD_create_post_processor (&connection,
1024, &value_checker, &want_off);
MHD_post_process (pp, xdata, splitpoint);
MHD_post_process (pp, &xdata[splitpoint], size - splitpoint);
MHD_destroy_post_processor (pp);
if (want_off != FORM_END)
return (int) splitpoint;
}
return 0;
}
static int
test_simple_large ()
{
struct MHD_Connection connection;
struct MHD_HTTP_Header header;
struct MHD_PostProcessor *pp;
int i;
int delta;
size_t size;
char data[102400];
unsigned int pos;
pos = 0;
memset (data, 'A', sizeof(data));
memcpy (data, "key=", 4);
data[sizeof(data)-1] = '\0';
memset (&connection, 0, sizeof (struct MHD_Connection));
memset (&header, 0, sizeof (struct MHD_HTTP_Header));
connection.headers_received = &header;
header.header = MHD_HTTP_HEADER_CONTENT_TYPE;
header.value = MHD_HTTP_POST_ENCODING_FORM_URLENCODED;
header.kind = MHD_HEADER_KIND;
pp = MHD_create_post_processor (&connection,
1024, &value_checker, &pos);
i = 0;
size = strlen (data);
while (i < size)
{
delta = 1 + random () % (size - i);
MHD_post_process (pp, &data[i], delta);
i += delta;
}
MHD_destroy_post_processor (pp);
if (pos != sizeof(data) - 5) /* minus 0-termination and 'key=' */
return 1;
return 0;
}
RESTRequest::~RESTRequest()
{
if( postProcessor )
MHD_destroy_post_processor( postProcessor );
}
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)
{
str page = {NULL, 0};
struct MHD_Response *response;
int ret;
void *async_data = NULL;
struct httpd_cb *cb;
const char *normalised_url;
struct post_request *pr;
str_str_t *kv;
char *p;
int cnt_type = HTTPD_STD_CNT_TYPE;
int accept_type = HTTPD_STD_CNT_TYPE;
int ret_code = MHD_HTTP_OK;
LM_DBG("START *** cls=%p, connection=%p, url=%s, method=%s, "
"versio=%s, upload_data[%zu]=%p, *con_cls=%p\n",
cls, connection, url, method, version,
*upload_data_size, upload_data, *con_cls);
pr = *con_cls;
if(pr == NULL){
pr = pkg_malloc(sizeof(struct post_request));
if(pr==NULL) {
LM_ERR("oom while allocating post_request structure\n");
return MHD_NO;
}
memset(pr, 0, sizeof(struct post_request));
*con_cls = pr;
pr = NULL;
}
if(strncmp(method, "POST", 4)==0) {
if(pr == NULL){
pr = *con_cls;
pr->p_list = slinkedl_init(&httpd_alloc, &httpd_free);
if (pr->p_list==NULL) {
LM_ERR("oom while allocating list\n");
return MHD_NO;
}
LM_DBG("running MHD_create_post_processor\n");
pr->pp = MHD_create_post_processor(connection,
post_buf_size,
&post_iterator,
pr);
if(pr->pp==NULL) {
if (*upload_data_size == 0) {
/* We need to wait for morte data before
* handling the POST request */
return MHD_YES;
}
LM_DBG("NOT a regular POST :o)\n");
if (pr->content_type==0 && pr->content_len==0)
MHD_get_connection_values(connection, MHD_HEADER_KIND,
&getConnectionHeader, pr);
if (pr->content_type<=0 || pr->content_len<=0) {
LM_ERR("got a bogus request\n");
return MHD_NO;
}
if (*upload_data_size != pr->content_len) {
/* For now, we don't support large POST with truncated data */
LM_ERR("got a truncated POST request\n");
return MHD_NO;
}
LM_DBG("got ContentType [%d] with len [%d]: %.*s\\n",
pr->content_type, pr->content_len,
(int)*upload_data_size, upload_data);
/* Here we save data. */
switch (pr->content_type) {
case HTTPD_TEXT_XML_CNT_TYPE:
case HTTPD_APPLICATION_JSON_CNT_TYPE:
/* Save the entire body as 'body' */
kv = (str_str_t*)slinkedl_append(pr->p_list,
sizeof(str_str_t) + 1 +
*upload_data_size);
p = (char*)(kv + 1);
kv->key.len = 1; kv->key.s = p;
memcpy(p, "1", 1);
p += 1;
kv->val.len = *upload_data_size;
kv->val.s = p;
memcpy(p, upload_data, *upload_data_size);
break;
default:
LM_ERR("Unhandled data for ContentType [%d]\n",
pr->content_type);
return MHD_NO;
}
/* Mark the fact that we consumed all data */
*upload_data_size = 0;
return MHD_YES;
}
LM_DBG("pr=[%p] pp=[%p] p_list=[%p]\n",
pr, pr->pp, pr->p_list);
return MHD_YES;
} else {
if (pr->pp==NULL) {
if (*upload_data_size == 0) {
if (pr->content_type==HTTPD_TEXT_XML_CNT_TYPE)
cnt_type = HTTPD_TEXT_XML_CNT_TYPE;
if (pr->content_type==HTTPD_APPLICATION_JSON_CNT_TYPE)
cnt_type = HTTPD_APPLICATION_JSON_CNT_TYPE;
*con_cls = pr->p_list;
cb = get_httpd_cb(url);
if (cb) {
normalised_url = &url[cb->http_root->len+1];
LM_DBG("normalised_url=[%s]\n", normalised_url);
ret_code = cb->callback(cls, (void*)connection,
normalised_url,
method, version,
upload_data, upload_data_size, con_cls,
&buffer, &page);
} else {
page = MI_HTTP_U_URL;
ret_code = MHD_HTTP_BAD_REQUEST;
}
/* slinkedl_traverse(pr->p_list,
&httpd_print_data, NULL, NULL); */
slinkedl_list_destroy(*con_cls);
pkg_free(pr); *con_cls = pr = NULL;
goto send_response;
}
LM_DBG("NOT a regular POST :o)\n");
if (pr->content_type==0 && pr->content_len==0)
MHD_get_connection_values(connection, MHD_HEADER_KIND,
&getConnectionHeader, pr);
if (pr->content_type<=0 || pr->content_len<=0) {
LM_ERR("got a bogus request\n");
return MHD_NO;
}
if (*upload_data_size != pr->content_len) {
/* For now, we don't support large POST with truncated data */
LM_ERR("got a truncated POST request\n");
return MHD_NO;
}
LM_DBG("got ContentType [%d] with len [%d]: %.*s\\n",
pr->content_type, pr->content_len,
(int)*upload_data_size, upload_data);
/* Here we save data. */
switch (pr->content_type) {
case HTTPD_TEXT_XML_CNT_TYPE:
case HTTPD_APPLICATION_JSON_CNT_TYPE:
/* Save the entire body as 'body' */
kv = (str_str_t*)slinkedl_append(pr->p_list,
sizeof(str_str_t) + 1 +
*upload_data_size);
p = (char*)(kv + 1);
kv->key.len = 1; kv->key.s = p;
memcpy(p, "1", 1);
p += 1;
kv->val.len = *upload_data_size;
kv->val.s = p;
memcpy(p, upload_data, *upload_data_size);
break;
default:
LM_ERR("Unhandled data for ContentType [%d]\n",
pr->content_type);
return MHD_NO;
}
/* Mark the fact that we consumed all data */
*upload_data_size = 0;
return MHD_YES;
}
LM_DBG("running MHD_post_process: "
"pp=%p status=%d upload_data_size=%zu\n",
pr->pp, pr->status, *upload_data_size);
if (pr->status<0) {
slinkedl_list_destroy(pr->p_list);
pr->p_list = NULL;
/* FIXME:
* It might be better to reply with an error
* instead of resetting the connection via MHD_NO */
return MHD_NO;
}
ret =MHD_post_process(pr->pp, upload_data, *upload_data_size);
LM_DBG("ret=%d upload_data_size=%zu\n", ret, *upload_data_size);
if(*upload_data_size != 0) {
*upload_data_size = 0;
return MHD_YES;
}
LM_DBG("running MHD_destroy_post_processor: "
"pr=[%p] pp=[%p] p_list=[%p]\n",
pr, pr->pp, pr->p_list);
MHD_destroy_post_processor(pr->pp);
LM_DBG("done MHD_destroy_post_processor\n");
/* slinkedl_traverse(pr->p_list, &httpd_print_data, NULL, NULL); */
*con_cls = pr->p_list;
cb = get_httpd_cb(url);
if (cb) {
normalised_url = &url[cb->http_root->len+1];
LM_DBG("normalised_url=[%s]\n", normalised_url);
ret_code = cb->callback(cls, (void*)connection,
normalised_url,
method, version,
upload_data, upload_data_size, con_cls,
&buffer, &page);
} else {
page = MI_HTTP_U_URL;
ret_code = MHD_HTTP_BAD_REQUEST;
}
/* slinkedl_traverse(pr->p_list, &httpd_print_data, NULL, NULL); */
slinkedl_list_destroy(*con_cls);
pkg_free(pr); *con_cls = pr = NULL;
}
}else if(strncmp(method, "GET", 3)==0) {
pr = *con_cls;
MHD_get_connection_values(connection, MHD_HEADER_KIND,
&getConnectionHeader, pr);
accept_type = pr->accept_type;
pkg_free(pr); *con_cls = pr = NULL;
LM_DBG("accept_type=[%d]\n", accept_type);
cb = get_httpd_cb(url);
if (cb) {
normalised_url = &url[cb->http_root->len+1];
LM_DBG("normalised_url=[%s]\n", normalised_url);
ret_code = cb->callback(cls, (void*)connection,
normalised_url,
method, version,
upload_data, upload_data_size, con_cls,
&buffer, &page);
} else {
page = MI_HTTP_U_URL;
ret_code = MHD_HTTP_BAD_REQUEST;
}
}else{
page = MI_HTTP_U_METHOD;
ret_code = MHD_HTTP_METHOD_NOT_ACCEPTABLE;
}
send_response:
if (page.s) {
LM_DBG("MHD_create_response_from_data [%p:%d]\n",
page.s, page.len);
response = MHD_create_response_from_data(page.len,
(void*)page.s,
0, 1);
} else {
LM_DBG("MHD_create_response_from_callback\n");
response = MHD_create_response_from_callback (MHD_SIZE_UNKNOWN,
buffer.len,
cb->flush_data_callback,
(void*)async_data,
NULL);
}
if (cnt_type==HTTPD_TEXT_XML_CNT_TYPE || accept_type==HTTPD_TEXT_XML_CNT_TYPE)
MHD_add_response_header(response,
MHD_HTTP_HEADER_CONTENT_TYPE,
"text/xml; charset=utf-8");
if (cnt_type==HTTPD_APPLICATION_JSON_CNT_TYPE || accept_type==HTTPD_APPLICATION_JSON_CNT_TYPE)
MHD_add_response_header(response,
MHD_HTTP_HEADER_CONTENT_TYPE,
"application/json");
ret = MHD_queue_response (connection, ret_code, response);
MHD_destroy_response (response);
return ret;
}
int CWebServer::AnswerToConnection(void *cls, struct MHD_Connection *connection,
const char *url, const char *method,
const char *version, const char *upload_data,
unsigned int *upload_data_size, void **con_cls)
#endif
{
if (cls == NULL || con_cls == NULL || *con_cls == NULL)
{
CLog::Log(LOGERROR, "CWebServer: invalid request received");
return MHD_NO;
}
CWebServer *server = reinterpret_cast<CWebServer*>(cls);
std::auto_ptr<ConnectionHandler> conHandler(reinterpret_cast<ConnectionHandler*>(*con_cls));
HTTPMethod methodType = GetMethod(method);
HTTPRequest request = { server, connection, conHandler->fullUri, url, methodType, version };
// remember if the request was new
bool isNewRequest = conHandler->isNew;
// because now it isn't anymore
conHandler->isNew = false;
// reset con_cls and set it if still necessary
*con_cls = NULL;
#ifdef WEBSERVER_DEBUG
if (isNewRequest)
{
std::multimap<std::string, std::string> headerValues;
GetRequestHeaderValues(connection, MHD_HEADER_KIND, headerValues);
std::multimap<std::string, std::string> getValues;
GetRequestHeaderValues(connection, MHD_GET_ARGUMENT_KIND, getValues);
CLog::Log(LOGDEBUG, "webserver [IN] %s %s %s", version, method, request.pathUrlFull.c_str());
if (!getValues.empty())
{
std::string tmp;
for (std::multimap<std::string, std::string>::const_iterator get = getValues.begin(); get != getValues.end(); ++get)
{
if (get != getValues.begin())
tmp += "; ";
tmp += get->first + " = " + get->second;
}
CLog::Log(LOGDEBUG, "webserver [IN] Query arguments: %s", tmp.c_str());
}
for (std::multimap<std::string, std::string>::const_iterator header = headerValues.begin(); header != headerValues.end(); ++header)
CLog::Log(LOGDEBUG, "webserver [IN] %s: %s", header->first.c_str(), header->second.c_str());
}
#endif
if (!IsAuthenticated(server, connection))
return AskForAuthentication(connection);
// check if this is the first call to AnswerToConnection for this request
if (isNewRequest)
{
// parse the Range header and store it in the request object
CHttpRanges ranges;
bool ranged = ranges.Parse(GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_RANGE));
// look for a IHTTPRequestHandler which can take care of the current request
for (std::vector<IHTTPRequestHandler *>::const_iterator it = m_requestHandlers.begin(); it != m_requestHandlers.end(); ++it)
{
IHTTPRequestHandler *requestHandler = *it;
if (requestHandler->CanHandleRequest(request))
{
// we found a matching IHTTPRequestHandler so let's get a new instance for this request
IHTTPRequestHandler *handler = requestHandler->Create(request);
// if we got a GET request we need to check if it should be cached
if (methodType == GET)
{
if (handler->CanBeCached())
{
bool cacheable = true;
// handle Cache-Control
std::string cacheControl = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CACHE_CONTROL);
if (!cacheControl.empty())
{
std::vector<std::string> cacheControls = StringUtils::Split(cacheControl, ",");
for (std::vector<std::string>::const_iterator it = cacheControls.begin(); it != cacheControls.end(); ++it)
{
std::string control = *it;
control = StringUtils::Trim(control);
// handle no-cache
if (control.compare(HEADER_VALUE_NO_CACHE) == 0)
cacheable = false;
}
}
if (cacheable)
{
// handle Pragma (but only if "Cache-Control: no-cache" hasn't been set)
std::string pragma = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_PRAGMA);
if (pragma.compare(HEADER_VALUE_NO_CACHE) == 0)
cacheable = false;
}
CDateTime lastModified;
if (handler->GetLastModifiedDate(lastModified) && lastModified.IsValid())
{
// handle If-Modified-Since or If-Unmodified-Since
std::string ifModifiedSince = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_IF_MODIFIED_SINCE);
std::string ifUnmodifiedSince = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_IF_UNMODIFIED_SINCE);
CDateTime ifModifiedSinceDate;
CDateTime ifUnmodifiedSinceDate;
// handle If-Modified-Since (but only if the response is cacheable)
if (cacheable &&
ifModifiedSinceDate.SetFromRFC1123DateTime(ifModifiedSince) &&
lastModified.GetAsUTCDateTime() <= ifModifiedSinceDate)
{
struct MHD_Response *response = MHD_create_response_from_data(0, NULL, MHD_NO, MHD_NO);
if (response == NULL)
{
CLog::Log(LOGERROR, "CWebServer: failed to create a HTTP 304 response");
return MHD_NO;
}
return FinalizeRequest(handler, MHD_HTTP_NOT_MODIFIED, response);
}
// handle If-Unmodified-Since
else if (ifUnmodifiedSinceDate.SetFromRFC1123DateTime(ifUnmodifiedSince) &&
lastModified.GetAsUTCDateTime() > ifUnmodifiedSinceDate)
return SendErrorResponse(connection, MHD_HTTP_PRECONDITION_FAILED, methodType);
}
// handle If-Range header but only if the Range header is present
if (ranged && lastModified.IsValid())
{
std::string ifRange = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_IF_RANGE);
if (!ifRange.empty() && lastModified.IsValid())
{
CDateTime ifRangeDate;
ifRangeDate.SetFromRFC1123DateTime(ifRange);
// check if the last modification is newer than the If-Range date
// if so we have to server the whole file instead
if (lastModified.GetAsUTCDateTime() > ifRangeDate)
ranges.Clear();
}
}
// pass the requested ranges on to the request handler
handler->SetRequestRanged(!ranges.IsEmpty());
}
}
// if we got a POST request we need to take care of the POST data
else if (methodType == POST)
{
conHandler->requestHandler = handler;
// get the content-type of the POST data
std::string contentType = GetRequestHeaderValue(connection, MHD_HEADER_KIND, MHD_HTTP_HEADER_CONTENT_TYPE);
if (!contentType.empty())
{
// if the content-type is application/x-ww-form-urlencoded or multipart/form-data we can use MHD's POST processor
if (StringUtils::EqualsNoCase(contentType, MHD_HTTP_POST_ENCODING_FORM_URLENCODED) ||
StringUtils::EqualsNoCase(contentType, MHD_HTTP_POST_ENCODING_MULTIPART_FORMDATA))
{
// Get a new MHD_PostProcessor
conHandler->postprocessor = MHD_create_post_processor(connection, MAX_POST_BUFFER_SIZE, &CWebServer::HandlePostField, (void*)conHandler.get());
// MHD doesn't seem to be able to handle this post request
if (conHandler->postprocessor == NULL)
{
CLog::Log(LOGERROR, "CWebServer: unable to create HTTP POST processor for %s", url);
delete conHandler->requestHandler;
return SendErrorResponse(connection, MHD_HTTP_INTERNAL_SERVER_ERROR, methodType);
}
}
}
// otherwise we need to handle the POST data ourselves which is done in the next call to AnswerToConnection
// as ownership of the connection handler is passed to libmicrohttpd we must not destroy it
*con_cls = conHandler.release();
return MHD_YES;
}
return HandleRequest(handler);
}
}
}
// this is a subsequent call to AnswerToConnection for this request
else
{
// again we need to take special care of the POST data
if (methodType == POST)
{
if (conHandler->requestHandler == NULL)
{
CLog::Log(LOGERROR, "CWebServer: cannot handle partial HTTP POST for %s request because there is no valid request handler available", url);
return SendErrorResponse(connection, MHD_HTTP_INTERNAL_SERVER_ERROR, methodType);
}
// we only need to handle POST data if there actually is data left to handle
if (*upload_data_size > 0)
{
// either use MHD's POST processor
if (conHandler->postprocessor != NULL)
MHD_post_process(conHandler->postprocessor, upload_data, *upload_data_size);
// or simply copy the data to the handler
else
conHandler->requestHandler->AddPostData(upload_data, *upload_data_size);
// signal that we have handled the data
*upload_data_size = 0;
// we may need to handle more POST data which is done in the next call to AnswerToConnection
// as ownership of the connection handler is passed to libmicrohttpd we must not destroy it
*con_cls = conHandler.release();
return MHD_YES;
}
// we have handled all POST data so it's time to invoke the IHTTPRequestHandler
else
{
if (conHandler->postprocessor != NULL)
MHD_destroy_post_processor(conHandler->postprocessor);
return HandleRequest(conHandler->requestHandler);
}
}
// it's unusual to get more than one call to AnswerToConnection for none-POST requests, but let's handle it anyway
else
{
for (std::vector<IHTTPRequestHandler *>::const_iterator it = m_requestHandlers.begin(); it != m_requestHandlers.end(); ++it)
{
IHTTPRequestHandler *requestHandler = *it;
if (requestHandler->CanHandleRequest(request))
return HandleRequest(requestHandler->Create(request));
}
}
}
CLog::Log(LOGERROR, "CWebServer: couldn't find any request handler for %s", url);
return SendErrorResponse(connection, MHD_HTTP_NOT_FOUND, methodType);
}
/**
* Main MHD callback for handling requests.
*
*
* @param cls argument given together with the function
* pointer when the handler was registered with MHD
* @param url the requested url
* @param method the HTTP method used ("GET", "PUT", etc.)
* @param version the HTTP version string (i.e. "HTTP/1.1")
* @param upload_data the data being uploaded (excluding HEADERS,
* for a POST that fits into memory and that is encoded
* with a supported encoding, the POST data will NOT be
* given in upload_data and is instead available as
* part of MHD_get_connection_values; very large POST
* data *will* be made available incrementally in
* upload_data)
* @param upload_data_size set initially to the size of the
* upload_data provided; the method must update this
* value to the number of bytes NOT processed;
* @param con_cls pointer that the callback can set to some
* address and that will be preserved by MHD for future
* calls for this request; since the access handler may
* be called many times (i.e., for a PUT/POST operation
* with plenty of upload data) this allows the application
* to easily associate some request-specific state.
* If necessary, this state can be cleaned up in the
* global "MHD_RequestCompleted" callback (which
* can be set with the MHD_OPTION_NOTIFY_COMPLETED).
* Initially, <tt>*con_cls</tt> will be NULL.
* @return MHS_YES if the connection was handled successfully,
* MHS_NO if the socket must be closed due to a serios
* error while handling the request
*/
static int
create_response (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 **ptr)
{
struct MHD_Response *response;
struct Request *request;
struct Session *session;
int ret;
unsigned int i;
request = *ptr;
if (NULL == request)
{
request = calloc (1, sizeof (struct Request));
if (NULL == request)
{
fprintf (stderr, "calloc error: %s\n", strerror (errno));
return MHD_NO;
}
*ptr = request;
if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
{
request->pp = MHD_create_post_processor (connection, 1024,
&post_iterator, request);
if (NULL == request->pp)
{
fprintf (stderr, "Failed to setup post processor for `%s'\n",
url);
return MHD_NO; /* internal error */
}
}
return MHD_YES;
}
if (NULL == request->session)
{
request->session = get_session (connection);
if (NULL == request->session)
{
fprintf (stderr, "Failed to setup session for `%s'\n",
url);
return MHD_NO; /* internal error */
}
}
session = request->session;
session->start = time (NULL);
if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
{
/* evaluate POST data */
MHD_post_process (request->pp,
upload_data,
*upload_data_size);
if (0 != *upload_data_size)
{
*upload_data_size = 0;
return MHD_YES;
}
/* done with POST data, serve response */
MHD_destroy_post_processor (request->pp);
request->pp = NULL;
method = MHD_HTTP_METHOD_GET; /* fake 'GET' */
if (NULL != request->post_url)
url = request->post_url;
}
if ( (0 == strcmp (method, MHD_HTTP_METHOD_GET)) ||
(0 == strcmp (method, MHD_HTTP_METHOD_HEAD)) )
{
/* find out which page to serve */
i=0;
while ( (pages[i].url != NULL) &&
(0 != strcmp (pages[i].url, url)) )
i++;
ret = pages[i].handler (pages[i].handler_cls,
pages[i].mime,
session, connection);
if (ret != MHD_YES)
fprintf (stderr, "Failed to create page for `%s'\n",
url);
return ret;
}
/* unsupported HTTP method */
response = MHD_create_response_from_buffer (strlen (METHOD_ERROR),
(void *) METHOD_ERROR,
MHD_RESPMEM_PERSISTENT);
ret = MHD_queue_response (connection,
MHD_HTTP_METHOD_NOT_ACCEPTABLE,
response);
MHD_destroy_response (response);
return ret;
}
/**
* Main callback from MHD, used to generate the page.
*
* @param cls NULL
* @param connection connection handle
* @param url requested URL
* @param method GET, PUT, POST, etc.
* @param version HTTP version
* @param upload_data data from upload (PUT/POST)
* @param upload_data_size number of bytes in "upload_data"
* @param ptr our context
* @return MHD_YES on success, MHD_NO to drop connection
*/
static int
generate_page (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 **ptr)
{
struct MHD_Response *response;
int ret;
int fd;
struct stat buf;
if (0 != strcmp (url, "/"))
{
/* should be file download */
char file_data[MAGIC_HEADER_SIZE];
ssize_t got;
const char *mime;
if ( (0 != strcmp (method, MHD_HTTP_METHOD_GET)) &&
(0 != strcmp (method, MHD_HTTP_METHOD_HEAD)) )
return MHD_NO; /* unexpected method (we're not polite...) */
if ( (0 == stat (&url[1], &buf)) &&
(NULL == strstr (&url[1], "..")) &&
('/' != url[1]))
fd = open (&url[1], O_RDONLY);
else
fd = -1;
if (-1 == fd)
return MHD_queue_response (connection,
MHD_HTTP_NOT_FOUND,
file_not_found_response);
/* read beginning of the file to determine mime type */
got = read (fd, file_data, sizeof (file_data));
if (-1 != got)
mime = magic_buffer (magic, file_data, got);
else
mime = NULL;
(void) lseek (fd, 0, SEEK_SET);
if (NULL == (response = MHD_create_response_from_fd (buf.st_size,
fd)))
{
/* internal error (i.e. out of memory) */
(void) close (fd);
return MHD_NO;
}
/* add mime type if we had one */
if (NULL != mime)
(void) MHD_add_response_header (response,
MHD_HTTP_HEADER_CONTENT_TYPE,
mime);
ret = MHD_queue_response (connection,
MHD_HTTP_OK,
response);
MHD_destroy_response (response);
return ret;
}
if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
{
/* upload! */
struct UploadContext *uc = *ptr;
if (NULL == uc)
{
if (NULL == (uc = malloc (sizeof (struct UploadContext))))
return MHD_NO; /* out of memory, close connection */
memset (uc, 0, sizeof (struct UploadContext));
uc->fd = -1;
uc->connection = connection;
uc->pp = MHD_create_post_processor (connection,
64 * 1024 /* buffer size */,
&process_upload_data, uc);
if (NULL == uc->pp)
{
/* out of memory, close connection */
free (uc);
return MHD_NO;
}
*ptr = uc;
return MHD_YES;
}
if (0 != *upload_data_size)
{
if (NULL == uc->response)
(void) MHD_post_process (uc->pp,
upload_data,
*upload_data_size);
*upload_data_size = 0;
return MHD_YES;
}
/* end of upload, finish it! */
MHD_destroy_post_processor (uc->pp);
uc->pp = NULL;
if (-1 != uc->fd)
{
close (uc->fd);
uc->fd = -1;
}
if (NULL != uc->response)
{
return MHD_queue_response (connection,
MHD_HTTP_FORBIDDEN,
uc->response);
}
else
{
update_directory ();
return return_directory_response (connection);
}
}
if ( (0 == strcmp (method, MHD_HTTP_METHOD_GET)) ||
(0 == strcmp (method, MHD_HTTP_METHOD_HEAD)) )
{
return return_directory_response (connection);
}
/* unexpected request, refuse */
return MHD_queue_response (connection,
MHD_HTTP_FORBIDDEN,
request_refused_response);
}
int WebServer::createResponse (struct MHD_Connection *connection,
const char *url,
const char *method,
const char *version,
const char *upload_data,
size_t *upload_data_size,
void **ptr)
{
struct MHD_Response *response;
struct Request *request;
WebSession *session;
int ret = MHD_NO;
unsigned int i;
request = (struct Request *)*ptr;
if (NULL == request)
{
request = (struct Request *)calloc (1, sizeof (struct Request));
if (NULL == request)
{
fprintf (stderr, "calloc error: %s\n", strerror (errno));
return MHD_NO;
}
*ptr = request;
if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
{
request->pp = MHD_create_post_processor (connection, 1024, &post_iterator, request);
if (NULL == request->pp)
{
fprintf (stderr, "Failed to setup post processor for `%s'\n",
url);
return MHD_NO; /* internal error */
}
}
return MHD_YES;
}
if (NULL == request->session)
{
request->session = getSession(connection);
if (NULL == request->session)
{
fprintf (stderr, "Failed to setup session for `%s'\n",
url);
return MHD_NO; /* internal error */
}
}
session = request->session;
session->start = time (NULL);
if (0 == strcmp (method, MHD_HTTP_METHOD_POST))
{
/* evaluate POST data */
MHD_post_process (request->pp,
upload_data,
*upload_data_size);
/*
if (0 != *upload_data_size)
{
*upload_data_size = 0;
return MHD_YES;
}
*/
/* done with POST data, serve response */
MHD_destroy_post_processor (request->pp);
request->pp = NULL;
method = MHD_HTTP_METHOD_GET; /* fake 'GET' */
if (NULL != request->post_url)
url = request->post_url;
//handle data
/* find out which page to serve */
WebPage * page = NULL;
for (auto it = _pages.begin(); it != _pages.end(); it++)
{
WebPage *current = *it;
if (strcmp (current->getURL().c_str(), url) == 0)
{
page = current;
break;
}
}
if (page != NULL)
{
page->handlePost(session, upload_data, *upload_data_size);
}
}
if ( (0 == strcmp (method, MHD_HTTP_METHOD_GET)) ||
(0 == strcmp (method, MHD_HTTP_METHOD_HEAD)) )
{
/* find out which page to serve */
WebPage * page = NULL;
for (auto it = _pages.begin(); it != _pages.end(); it++)
{
WebPage *current = *it;
if (strcmp (current->getURL().c_str(), url) == 0)
{
page = current;
break;
}
}
if (page == NULL)
{
page = _notFoundPage;
}
std::cout << "Serving page" << std::endl;
struct MHD_Response *response;
std::string replyString = page->fillRequest(session);
// return static form
response = MHD_create_response_from_buffer (strlen (replyString.c_str()),
(void *) replyString.c_str(),
MHD_RESPMEM_MUST_COPY);
if (NULL != response)
{
addSessionCookie(session, response);
MHD_add_response_header (response,
MHD_HTTP_HEADER_CONTENT_ENCODING,
page->getMime().c_str());
ret = MHD_queue_response (connection,
MHD_HTTP_OK,
response);
MHD_destroy_response (response);
}
/*
i=0;
while ( (pages[i].url != NULL) &&
(0 != strcmp (pages[i].url, url)) )
i++;
ret = pages[i].handler (pages[i].handler_cls,
pages[i].mime,
session, connection);
*/
if (ret != MHD_YES)
fprintf (stderr, "Failed to create page for `%s'\n", url);
return ret;
}
/* unsupported HTTP method */
response = MHD_create_response_from_buffer (strlen (METHOD_ERROR),
(void *) METHOD_ERROR,
MHD_RESPMEM_PERSISTENT);
ret = MHD_queue_response (connection,
MHD_HTTP_NOT_ACCEPTABLE,
response);
MHD_destroy_response (response);
return ret;
}
static int cws_response (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 ** ptr)
{
int ret = MHD_NO;
static int dummy;
const char *webfile;
char *page;
char *basedir = ((cws_conn *) cls)->basedir;
cws_astring *pathfile;
struct MHD_Response *response;
cws_handler *hdlr = ((cws_conn *) cls)->hdlr;
const union MHD_ConnectionInfo *info;
/*
if (0 != strcmp(method, "GET")) return MHD_NO;
*/
webfile = url;
if (&dummy != *ptr)
{
*ptr = &dummy;
return MHD_YES;
}
*ptr = NULL;
response = NULL;
if (0 != *upload_data_size)
{
cws_handler *h = cws_handler_lookup (hdlr, webfile);
if (h != NULL)
{
cws_dict *dict = NULL;
struct MHD_PostProcessor *pp = MHD_create_post_processor(connection, 65536,
post_processor,
&dict);
MHD_post_process(pp, upload_data, *upload_data_size);
MHD_destroy_post_processor(pp);
page = h->f(dict);
printf("Page: %s\n", page);
response = MHD_create_response_from_data (strlen (page), page, MHD_NO, MHD_YES);
if (response)
{
printf("sending response\n");
MHD_add_response_header (response, "Content-Type", h->mimetype);
ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
printf("if? %d\n", ret == MHD_YES ? 1 : 0);
}
MHD_destroy_response (response);
free (page);
cws_dict_free (&dict);
}
return MHD_NO;
}
info = MHD_get_connection_info (connection, MHD_CONNECTION_INFO_CLIENT_ADDRESS);
log_connections (inet_ntoa(((struct sockaddr_in *) info->client_addr)->sin_addr), url);
if (strcmp (webfile, "/") == 0) webfile = "/index.html";
pathfile = cws_astring_new(basedir);
cws_astring_cat(pathfile, webfile);
if (access (CWS_ASTRING(pathfile), F_OK) != -1)
{
int fd = open (CWS_ASTRING(pathfile), O_RDONLY);
struct stat sbuf;
fstat (fd, &sbuf);
response = MHD_create_response_from_fd (sbuf.st_size, fd);
MHD_add_response_header (response, "Content-Type", cws_mime_type(CWS_ASTRING(pathfile)));
}
else
{
cws_handler *h = cws_handler_lookup (hdlr, webfile);
if (h != NULL)
{
cws_dict *dict = NULL;
MHD_get_connection_values (connection, MHD_GET_ARGUMENT_KIND, get_keys, &dict);
page = h->f(dict);
response = MHD_create_response_from_data (strlen (page), page, MHD_NO, MHD_YES);
MHD_add_response_header (response, "Content-Type", h->mimetype);
free (page);
cws_dict_free (&dict);
}
else
{
response = MHD_create_response_from_data (strlen (ERROR_ANSWER), ERROR_ANSWER, MHD_NO, MHD_YES);
MHD_add_response_header (response, "Content-Type", cws_mime_type("html"));
}
}
if (response != NULL)
{
ret = MHD_queue_response(connection, MHD_HTTP_OK, response);
MHD_destroy_response (response);
}
cws_astring_free(pathfile);
return ret;
}
