static void redirect_to_ssl(struct mg_connection *conn,
const struct mg_request_info *request_info) {
const char *p, *host = mg_get_header(conn, "Host");
// u_int16_t port = ntop->get_HTTPserver()->get_port();
if(host != NULL && (p = strchr(host, ':')) != NULL) {
mg_printf(conn, "HTTP/1.1 302 Found\r\n"
"Location: https://%.*s:%u/%s\r\n\r\n",
(int) (p - host), host, ntop->getPrefs()->get_https_port(), request_info->uri);
} else {
mg_printf(conn, "%s", "HTTP/1.1 500 Error\r\n\r\nHost: header is not set");
}
}
static int ev_handler(struct mg_connection *conn, enum mg_event ev) {
std::string uri;
const char* secret = NULL;
const char* requested_with = NULL;
int retval = MG_FALSE;
switch (ev) {
case MG_REQUEST:
boinc_resolve_filename_s(conn->uri+1, uri);
mg_send_file(
conn,
uri.c_str(),
"Access-Control-Allow-Origin: *\r\n"
);
return MG_MORE;
case MG_AUTH:
retval = MG_FALSE;
if (!webserver_debugging) {
secret = mg_get_header(conn, "Secret");
if (secret) {
if (0 == strcmp(secret, webserver_secret)) {
retval = MG_TRUE;
}
}
requested_with = mg_get_header(conn, "X-Requested-With");
if (requested_with) {
retval = MG_TRUE;
}
} else {
retval = MG_TRUE;
}
return retval;
default:
return MG_FALSE;
}
}
// Get session object for the connection. Caller must hold the lock.
static struct session *get_session(const struct mg_connection *conn) {
int i;
const char *cookie = mg_get_header(conn, "Cookie");
char session_id[33];
time_t now = time(NULL);
mg_get_cookie(cookie, "session", session_id, sizeof(session_id));
for (i = 0; i < MAX_SESSIONS; i++) {
if (sessions[i].expire != 0 && sessions[i].expire > now
&& strcmp(sessions[i].session_id, session_id) == 0) {
break;
}
}
return i == MAX_SESSIONS ? NULL : &sessions[i];
}
void atlas::http::detail::basic_function::serve(
uri_parameters_type match,
mg_connection *conn,
uri_callback_type success,
uri_callback_type failure
) const
{
const char *token = mg_get_header(conn, "Authorization");
bool authorised = false;
try
{
authorised = m_auth_function((token == nullptr) ? "" : token, match);
}
catch(const std::exception& e)
{
log::error("atlas::http::detail::basic_function::serve") <<
"error checking authentication token: " << e.what();
http::error(403, "checking authentication", conn);
success();
}
if(authorised)
{
try
{
m_serve(conn, match, success, failure);
}
catch(const http::exception& e)
{
log::error("atlas::http::detail::basic_function::serve") <<
"error in http handler returned to client: " << e.what();
http::error(e.code(), e.what(), conn);
success();
}
catch(const std::exception& e)
{
log::error("atlas::http::detail::basic_function::serve") <<
"error in http handler: " << e.what();
http::error(500, "unknown error", conn);
success();
}
}
else
{
http::error(403, "unauthorised", conn);
success();
}
}
static int event_handler(struct mg_connection *conn, enum mg_event ev)
{
if(ev == MG_REQUEST)
{
if(conn->is_websocket)
{
ws_handler(conn, FLAG_WS_DATA);
return MG_TRUE;
}
else
{
int ret = web_handler(conn);
if(ret < 0)
{
const char* srvfilepath = strlen(conn->uri) <= 1 ? "index.html" : conn->uri;
if(srvfilepath[0] == '/')
srvfilepath++;
mg_send_file(conn, srvfilepath, NULL);
return MG_MORE;
}
return MG_TRUE;
}
}
else if(ev == MG_WS_CONNECT)
{
conn->connection_param = malloc(25);
const char* key = mg_get_header(conn, "Sec-WebSocket-Key");
strncpy(conn->connection_param, key, 24);
char *p = (char*)(conn->connection_param);
p[24] = '\0';
ws_handler(conn, FLAG_WS_OPEN);
return MG_TRUE;
}
else if(ev == MG_CLOSE)
{
if(conn->is_websocket)
{
ws_handler(conn, FLAG_WS_CLOSE);
}
free(conn->connection_param);
return MG_TRUE;
}
else if(ev == MG_AUTH)
{
return MG_TRUE;
}
return MG_FALSE;
}
static void test_post(struct mg_connection *conn,
const struct mg_request_info *ri) {
const char *cl;
char *buf;
int len;
mg_printf(conn, "%s", standard_reply);
if (strcmp(ri->request_method, "POST") == 0 &&
(cl = mg_get_header(conn, "Content-Length")) != NULL) {
len = atoi(cl);
if ((buf = malloc(len)) != NULL) {
mg_write(conn, buf, len);
free(buf);
}
}
}
static void test_get_header(struct mg_connection *conn,
const struct mg_request_info *ri) {
const char *value;
int i;
mg_printf(conn, "%s", standard_reply);
printf("HTTP headers: %d\n", ri->num_headers);
for (i = 0; i < ri->num_headers; i++) {
printf("[%s]: [%s]\n", ri->http_headers[i].name, ri->http_headers[i].value);
}
value = mg_get_header(conn, "Host");
if (value != NULL) {
mg_printf(conn, "Value: [%s]", value);
}
}
static int api_callback(struct mg_connection *conn) {
struct mg_request_info *ri = mg_get_request_info(conn);
char post_data[100] = "";
ASSERT(ri->user_data == (void *) 123);
ASSERT(ri->num_headers == 2);
ASSERT(strcmp(mg_get_header(conn, "host"), "blah.com") == 0);
ASSERT(mg_read(conn, post_data, sizeof(post_data)) == 3);
ASSERT(memcmp(post_data, "b=1", 3) == 0);
ASSERT(ri->query_string != NULL);
ASSERT(ri->remote_ip > 0);
ASSERT(ri->remote_port > 0);
ASSERT(strcmp(ri->http_version, "1.0") == 0);
mg_printf(conn, "HTTP/1.0 200 OK\r\n\r\n");
return 1;
}
/*
get json_data value form post data.
*/
char * get_post_data(struct mg_connection *conn)
{
char *buff = NULL;
size_t buf_len;
const char *cl;
cl = mg_get_header(conn, "Content-Length");
if ((!strcmp(conn->request_method, "POST") || (!strcmp(conn->request_method, "PUT"))&& cl != NULL))
{
buf_len = atoi(cl)+1;
buff = malloc(buf_len);
memset(buff,0,buf_len);
memcpy(buff,conn->content,conn->content_len);
}
return buff; /*should free outside*/
}
Request::Request(struct mg_connection *connection_, const struct mg_request_info *request_) :
connection(connection_),
request(request_)
{
url = string(request->uri);
method = string(request->request_method);
// Downloading POST data
ostringstream postData;
if (mg_get_header(connection, "Content-Type") != NULL) {
int n;
char post[1024];
while (n = mg_read(connection, post, sizeof(post))) {
postData.write(post, n);
}
}
data = postData.str();
}
////////////////////////////////////////////////////////////////
///Function to send a simple text ajax rely
void Executive::ajaxReply(struct mg_connection *conn, const struct mg_request_info *request_info)
{
try{
const char * clength;
char h1[] = "Content-Length";
clength = mg_get_header(conn,h1); //get length of post data
int clen = atoi(clength);
char *pdata = (char *)malloc(clen+clen/8+1);
int datalen = mg_read(conn,pdata,clen); //read post data
pdata[clen] = '\0';
printf("\nUser data: %s",pdata);
mg_printf(conn, "%s\r\n%s", ajax_reply_start,pdata);
free(pdata);
}
catch(std::exception ex)
{
std::cout << "\n " << ex.what() << "\n\n";
}
}
static void
login_page(struct mg_connection *conn,
const struct mg_request_info *ri, void *data)
{
char *name, *pass, uri[100];
const char *cookie;
name = mg_get_var(conn, "name");
pass = mg_get_var(conn, "pass");
cookie = mg_get_header(conn, "Cookie");
/*
* Here user name and password must be checked against some
* database - this is step 2 from the algorithm described above.
* This is an example, so hardcode name and password to be
* admin/admin, and if this is so, set "allow=yes" cookie and
* redirect back to the page where we have been redirected to login.
*/
if (name != NULL && pass != NULL &&
strcmp(name, "admin") == 0 && strcmp(pass, "admin") == 0) {
if (cookie == NULL || sscanf(cookie, "uri=%99s", uri) != 1)
(void) strcpy(uri, "/");
/* Set allow=yes cookie, which is expected by authorize() */
mg_printf(conn, "HTTP/1.1 301 Moved Permanently\r\n"
"Location: %s\r\n"
"Set-Cookie: allow=yes;\r\n\r\n", uri);
} else {
/* Print login page */
mg_printf(conn, "HTTP/1.1 200 OK\r\n"
"content-Type: text/html\r\n\r\n"
"Please login (enter admin/admin to pass)<br>"
"<form method=post>"
"Name: <input type=text name=name></input><br/>"
"Password: <input type=password name=pass></input><br/>"
"<input type=submit value=Login></input>"
"</form>");
}
if (name != NULL)
mg_free(name);
if (pass != NULL)
mg_free(pass);
}
int
CookieHandler(struct mg_connection *conn, void *cbdata)
{
/* Handler may access the request info using mg_get_request_info */
const struct mg_request_info *req_info = mg_get_request_info(conn);
const char *cookie = mg_get_header(conn, "Cookie");
char first_str[64], count_str[64];
int count;
(void)mg_get_cookie(cookie, "first", first_str, sizeof(first_str));
(void)mg_get_cookie(cookie, "count", count_str, sizeof(count_str));
mg_printf(conn, "HTTP/1.1 200 OK\r\nConnection: close\r\n");
if (first_str[0] == 0) {
time_t t = time(0);
struct tm *ptm = localtime(&t);
mg_printf(conn,
"Set-Cookie: first=%04i-%02i-%02iT%02i:%02i:%02i\r\n",
ptm->tm_year + 1900,
ptm->tm_mon + 1,
ptm->tm_mday,
ptm->tm_hour,
ptm->tm_min,
ptm->tm_sec);
}
count = (count_str[0] == 0) ? 0 : atoi(count_str);
mg_printf(conn, "Set-Cookie: count=%i\r\n", count + 1);
mg_printf(conn, "Content-Type: text/html\r\n\r\n");
mg_printf(conn, "<html><body>");
mg_printf(conn, "<h2>This is the CookieHandler.</h2>");
mg_printf(conn, "<p>The actual uri is %s</p>", req_info->local_uri);
if (first_str[0] == 0) {
mg_printf(conn, "<p>This is the first time, you opened this page</p>");
} else {
mg_printf(conn, "<p>You opened this page %i times before.</p>", count);
mg_printf(conn, "<p>You first opened this page on %s.</p>", first_str);
}
mg_printf(conn, "</body></html>\n");
return 1;
}
static char *field(struct mg_connection *conn, char *fieldname)
{
char buf[BUFSIZ], *p, *h;
int ret;
snprintf(buf, sizeof(buf), "X-Limit-%s", fieldname);
if ((h = (char *)mg_get_header(conn, buf)) != NULL) {
p = strdup(h);
lowercase(p);
return (p);
}
if ((ret = mg_get_var(conn, fieldname, buf, sizeof(buf))) > 0) {
p = strdup(buf);
lowercase(p);
return (p);
}
return (NULL);
}
static void test_get_var(struct mg_connection *conn) {
char *var, *buf;
size_t buf_len;
const char *cl;
int var_len;
const struct mg_request_info *ri = mg_get_request_info(conn);
int is_form_enc = 0;
send_standard_reply_head(conn);
buf_len = 0;
var = buf = NULL;
cl = mg_get_header(conn, "Content-Length");
mg_printf(conn, "cl: %p\n", cl);
if ((!strcmp(ri->request_method, "POST") ||
!strcmp(ri->request_method, "PUT"))
&& cl != NULL) {
buf_len = atoi(cl);
buf = malloc(buf_len);
/* Read in two pieces, to test continuation */
if (buf_len > 2) {
mg_read(conn, buf, 2);
mg_read(conn, buf + 2, buf_len - 2);
} else {
mg_read(conn, buf, buf_len);
}
is_form_enc = 1;
} else {
MG_ASSERT(ri->query_string != NULL); // query_string ~ "" when no query string was specified in the request
buf_len = strlen(ri->query_string);
buf = malloc(buf_len + 1);
strcpy(buf, ri->query_string);
is_form_enc = 1;
}
var = malloc(buf_len + 1);
var_len = mg_get_var(buf, buf_len, "my_var", var, buf_len + 1, is_form_enc);
mg_printf(conn, "Value: [%s]\n", var);
mg_printf(conn, "Value size: [%d]\n", var_len);
free(buf);
free(var);
}
////////////////////////////////////////////////////////////////
///Function to send sniffed file list to the client
void Executive::listReply(struct mg_connection *conn, const struct mg_request_info *request_info)
{
try{
int is_jsonp;
char text[100];
const char * json;
std::stringstream ss;
std::string msg;
mg_printf(conn, "%s\r\n", json_reply_start); //prints the json message starting headers
const char * clength;
char h1[] = "Content-Length";
clength = mg_get_header(conn,h1); //get the length of post data
int clen = atoi(clength);
char *pdata = (char *)malloc(clen+clen/8+1);
int datalen = mg_read(conn,pdata,clen); //read post data
pdata[clen] = '\0';
mg_get_var(pdata, strlen(pdata == NULL ? "" : pdata), "text", text, sizeof(text));
std::string path(text);
is_jsonp = handle_jsonp(pdata,conn, request_info); //find the callback function
srand((size_t)time(NULL));
ss<<"[";
fsniffer2.Clear();
fsniffer2.sniffFiles(path);
std::set<std::string> filelist = fsniffer2.getFiles(); //get sniffed files
for (std::set<std::string>::iterator it=filelist.begin(); it != filelist.end(); it++)
{
std::string tempstr = HTMLEncode(*it); //html encode filepaths
ss<<"{item: \""<<tempstr<<"\"},";
}
ss<<"]";
msg = ss.str();
json = msg.c_str();
mg_printf(conn, "%s", json); //print json array to the connection
if (is_jsonp) {
mg_printf(conn, "%s", ")"); //print closing bracket for the function
}
// fsniffer2.saveFiles(); //save sniffed files
}
catch(std::exception ex){std::cout << "\n " << ex.what() << "\n\n";}
}
static void
authorize(struct mg_connection *conn,
const struct mg_request_info *ri, void *data)
{
const char *cookie, *domain;
cookie = mg_get_header(conn, "Cookie");
if (!strcmp(ri->uri, "/login")) {
/* Always authorize accesses to the login page */
mg_authorize(conn);
} else if (cookie != NULL && strstr(cookie, "allow=yes") != NULL) {
/* Valid cookie is present, authorize */
mg_authorize(conn);
} else {
/* Not authorized. Redirect to the login page */
mg_printf(conn, "HTTP/1.1 301 Moved Permanently\r\n"
"Set-Cookie: uri=%s;\r\n"
"Location: /login\r\n\r\n", ri->uri);
}
}
////////////////////////////////////////////////////////////////
///Function to send sniffed process list
void Executive::procReply(struct mg_connection *conn, const struct mg_request_info *request_info)
{
try{
int is_jsonp;
const char * json;
std::stringstream ss;
std::string msg;
mg_printf(conn, "%s\r\n", json_reply_start); //prints the json message starting headers
const char * clength;
char h1[] = "Content-Length";
clength = mg_get_header(conn,h1); //get the length of post data
int clen = atoi(clength);
char *pdata = (char *)malloc(clen+clen/8+1);
int datalen = mg_read(conn,pdata,clen); //read post data
pdata[clen] = '\0';
/*mg_get_var(pdata, strlen(pdata == NULL ? "" : pdata), "text", text, sizeof(text));
std::string path(text);*/
is_jsonp = handle_jsonp(pdata,conn, request_info); //find the callback function
srand((size_t)time(NULL));
ss<<"[";
prsniffer.Clear();
prsniffer.sniffProcesses();
std::map<std::string,int> filelist = prsniffer.getProcesses(); //get process list
for (std::map<std::string,int>::iterator it=filelist.begin(); it != filelist.end(); it++)
{
std::string tempstr = HTMLEncode((*it).first);
ss<<"{item: \""<<tempstr<<" ("<<(*it).second<<")\"},"; //store process name and count
}
ss<<"]";
msg = ss.str();
json = msg.c_str();
mg_printf(conn, "%s", json); //print json array to the connection
if (is_jsonp)
{
mg_printf(conn, "%s", ")"); //print closing bracket for the function
}
//prsniffer.saveProcesses();
}catch(std::exception ex){std::cout << "\n " << ex.what() << "\n\n";}
}
static int api_cb(struct mg_event *event) {
struct mg_request_info *ri = event->request_info;
char post_data[100] = "";
if (event->type == MG_REQUEST_BEGIN) {
ASSERT(event->user_data == (void *) 123);
ASSERT(ri->num_headers == 2);
ASSERT(strcmp(mg_get_header(event->conn, "host"), "blah.com") == 0);
ASSERT(mg_read(event->conn, post_data, sizeof(post_data)) == 3);
ASSERT(memcmp(post_data, "b=1", 3) == 0);
ASSERT(ri->query_string != NULL);
ASSERT(strcmp(ri->query_string, api_uri + 2) == 0);
ASSERT(ri->remote_ip > 0);
ASSERT(ri->remote_port > 0);
ASSERT(strcmp(ri->http_version, "1.0") == 0);
mg_printf(event->conn, "HTTP/1.0 200 OK\r\n\r\n");
return 1;
}
return 0;
}
static void mg_keep_alive(struct mg_connection* conn, const struct mg_request_info* ri) {
const char *cl;
char *buf;
int len;
mg_printf(conn, "%s", standard_reply);
if (strcmp(ri->request_method, "POST") == 0 &&
(cl = mg_get_header(conn, "Content-Length")) != NULL) {
len = atoi(cl);
if ((buf = MEM_ALLOC(len+1)) != NULL) {
mg_read(conn, buf, len);
buf[len] = '\0';
uint id;
sscanf(buf, "%u", &id);
MEM_FREE(buf);
// Invoke keep_alive
_invoke("keep_alive_cb", id, NULL);
}
}
}
static void *callback(enum mg_event event, struct mg_connection *conn)
{
const struct mg_request_info *request_info = mg_get_request_info(conn);
char* readBuffer = NULL;
int postSize = 0;
HttpServer* _this = (HttpServer*) request_info->user_data;
if (event == MG_NEW_REQUEST)
{
if (strcmp(request_info->request_method, "GET") == 0)
{
//Mark the request as unprocessed.
return NULL;
}
else if (strcmp(request_info->request_method, "POST") == 0)
{
//get size of postData
sscanf(mg_get_header(conn, "Content-Length"), "%d", &postSize);
readBuffer = (char*) malloc(sizeof(char) * (postSize + 1));
mg_read(conn, readBuffer, postSize);
_this->OnRequest(readBuffer, conn);
free(readBuffer);
//Mark the request as processed by our handler.
return (void*) "";
}
else
{
return NULL;
}
}
else
{
return NULL;
}
}
static void mg_leave(struct mg_connection* conn, const struct mg_request_info* ri) {
const char *cl;
char *buf;
int len;
if (strcmp(ri->request_method, "POST") == 0 &&
(cl = mg_get_header(conn, "Content-Length")) != NULL) {
len = atoi(cl);
if ((buf = MEM_ALLOC(len+1)) != NULL) {
mg_read(conn, buf, len);
buf[len] = '\0';
uint id;
sscanf(buf, "%u", &id);
MEM_FREE(buf);
if(aatree_size(&clients)) {
aatree_remove(&clients, id);
// Invoke leave_cb
_invoke("leave_cb", id, NULL);
mg_printf(conn, "%s", standard_reply);
return;
}
else {
goto error;
}
}
}
else if(strcmp(ri->request_method, "OPTIONS") == 0) {
mg_printf(conn, "%s", standard_reply);
return;
}
error:
mg_error(conn, ri);
}
static void test_get_var(struct mg_connection *conn,
const struct mg_request_info *ri) {
char *var, *buf;
size_t buf_len;
const char *cl;
int var_len;
mg_printf(conn, "%s", standard_reply);
buf_len = 0;
var = buf = NULL;
cl = mg_get_header(conn, "Content-Length");
mg_printf(conn, "cl: %p\n", cl);
if ((!strcmp(ri->request_method, "POST") ||
!strcmp(ri->request_method, "PUT"))
&& cl != NULL) {
buf_len = atoi(cl);
buf = malloc(buf_len);
/* Read in two pieces, to test continuation */
if (buf_len > 2) {
mg_read(conn, buf, 2);
mg_read(conn, buf + 2, buf_len - 2);
} else {
mg_read(conn, buf, buf_len);
}
} else if (ri->query_string != NULL) {
buf_len = strlen(ri->query_string);
buf = malloc(buf_len + 1);
strcpy(buf, ri->query_string);
}
var = malloc(buf_len + 1);
var_len = mg_get_var(buf, buf_len, "my_var", var, buf_len + 1);
mg_printf(conn, "Value: [%s]\n", var);
mg_printf(conn, "Value size: [%d]\n", var_len);
free(buf);
free(var);
}
int event_handler(struct mg_event *event){
struct mg_request_info *request_info = event->request_info;
struct mg_connection *conn = event->conn;
regex_t regex;
int rc;
const char *override_method;
if (event->type != MG_REQUEST_BEGIN) return 0;
override_method = mg_get_header(conn, HTTP_METHOD_HEADER);
printf("\x1B[0;32m[%s]\x1B[0m %s\n",
override_method ? override_method : request_info->request_method,
request_info->uri
);
rc = regcomp(®ex, TODO_UPDATE_REGEX, 0);
if(strcmp(request_info->uri, TODO_LIST_URL) == 0 &&
strcmp(request_info->request_method, "GET") == 0){
todos_index(conn);
}else if(strcmp(request_info->uri, TODO_CREATE_URL) == 0 &&
strcmp(request_info->request_method, "POST") == 0){
todos_create(conn);
}else if(regexec(®ex, request_info->uri, 0, NULL, 0) == 0){
int todo_id = atoi(&request_info->uri[7]);
if(strcmp(override_method, "PUT") == 0){
todos_update(conn, todo_id);
}else if(strcmp(override_method, "DELETE") == 0){
todos_delete(conn, todo_id);
}
}
regfree(®ex);
return 0;
}
/*
* This callback function is attached to the "/" and "/abc.html" URIs,
* thus is acting as "index.html" file. It shows a bunch of links
* to other URIs, and allows to change the value of program's
* internal variable. The pointer to that variable is passed to the
* callback function as arg->user_data.
*/
static void
show_index(struct mg_connection *conn,
const struct mg_request_info *request_info,
void *user_data)
{
char *value;
const char *host;
/* Change the value of integer variable */
value = mg_get_var(conn, "name1");
if (value != NULL) {
* (int *) user_data = atoi(value);
free(value);
/*
* Suggested by Luke Dunstan. When POST is used,
* send 303 code to force the browser to re-request the
* page using GET method. This prevents the possibility of
* the user accidentally resubmitting the form when using
* Refresh or Back commands in the browser.
*/
if (!strcmp(request_info->request_method, "POST")) {
(void) mg_printf(conn, "HTTP/1.1 303 See Other\r\n"
"Location: %s\r\n\r\n", request_info->uri);
return;
}
}
mg_printf(conn, "%s",
"HTTP/1.1 200 OK\r\nContent-Type: text/html\r\n\r\n"
"<html><body><h1>Welcome to embedded example of Mongoose");
#if 0
mg_printf(conn, " v. %s </h1><ul>", mg_version());
mg_printf(conn, "<li><code>REQUEST_METHOD: %s "
"REQUEST_URI: \"%s\" QUERY_STRING: \"%s\""
" REMOTE_ADDR: %lx REMOTE_USER: \"(null)\"</code><hr>",
request_info->request_method, request_info->uri,
request_info->query_string ? request_info->query_string : "(null)",
request_info->remote_ip);
mg_printf(conn, "<li>Internal int variable value: <b>%d</b>",
* (int *) user_data);
mg_printf(conn, "%s",
"<form method=\"GET\">Enter new value: "
"<input type=\"text\" name=\"name1\"/>"
"<input type=\"submit\" value=\"set new value using GET method\"></form>");
mg_printf(conn, "%s",
"<form method=\"POST\">Enter new value: "
"<input type=\"text\" name=\"name1\"/>"
"<input type=\"submit\" "
"value=\"set new value using POST method\"></form>");
mg_printf(conn, "%s",
"<li><a href=\"/Makefile\">Regular file (Makefile)</a><hr>"
"<li><a href=\"/ssi_test.shtml\">SSI file "
"(ssi_test.shtml)</a><hr>"
"<li><a href=\"/users/joe/\">Wildcard URI example</a><hr>"
"<li><a href=\"/not-existent/\">Custom 404 handler</a><hr>");
host = mg_get_header(conn, "Host");
mg_printf(conn, "<li>'Host' header value: [%s]<hr>",
host ? host : "NOT SET");
#endif
mg_printf(conn, "<li>Upload file example. "
"<form method=\"post\" enctype=\"multipart/form-data\" "
"action=\"/post\"><input type=\"file\" name=\"file\">"
"<input type=\"submit\"></form>");
mg_printf(conn, "%s", "</body></html>");
}
static void test_mg_download(void) {
char *p1, *p2, ebuf[100];
int len1, len2, port = atoi(HTTPS_PORT);
struct mg_connection *conn;
struct mg_context *ctx;
ASSERT((ctx = mg_start(&CALLBACKS, NULL, OPTIONS)) != NULL);
ASSERT(mg_download(NULL, port, 0, ebuf, sizeof(ebuf), "%s", "") == NULL);
ASSERT(mg_download("localhost", 0, 0, ebuf, sizeof(ebuf), "%s", "") == NULL);
ASSERT(mg_download("localhost", port, 1, ebuf, sizeof(ebuf),
"%s", "") == NULL);
// Fetch nonexistent file, should see 404
ASSERT((conn = mg_download("localhost", port, 1, ebuf, sizeof(ebuf), "%s",
"GET /gimbec HTTP/1.0\r\n\r\n")) != NULL);
ASSERT(strcmp(conn->request_info.uri, "404") == 0);
mg_close_connection(conn);
ASSERT((conn = mg_download("google.com", 443, 1, ebuf, sizeof(ebuf), "%s",
"GET / HTTP/1.0\r\n\r\n")) != NULL);
mg_close_connection(conn);
// Fetch civetweb.c, should succeed
ASSERT((conn = mg_download("localhost", port, 1, ebuf, sizeof(ebuf), "%s",
"GET /civetweb.c HTTP/1.0\r\n\r\n")) != NULL);
ASSERT(!strcmp(conn->request_info.uri, "200"));
ASSERT((p1 = read_conn(conn, &len1)) != NULL);
ASSERT((p2 = read_file("civetweb.c", &len2)) != NULL);
ASSERT(len1 == len2);
ASSERT(memcmp(p1, p2, len1) == 0);
free(p1), free(p2);
mg_close_connection(conn);
// Fetch in-memory file, should succeed.
ASSERT((conn = mg_download("localhost", port, 1, ebuf, sizeof(ebuf), "%s",
"GET /blah HTTP/1.1\r\n\r\n")) != NULL);
ASSERT((p1 = read_conn(conn, &len1)) != NULL);
ASSERT(len1 == (int) strlen(inmemory_file_data));
ASSERT(memcmp(p1, inmemory_file_data, len1) == 0);
free(p1);
mg_close_connection(conn);
// Fetch in-memory data with no Content-Length, should succeed.
ASSERT((conn = mg_download("localhost", port, 1, ebuf, sizeof(ebuf), "%s",
"GET /data HTTP/1.1\r\n\r\n")) != NULL);
ASSERT((p1 = read_conn(conn, &len1)) != NULL);
ASSERT(len1 == (int) strlen(fetch_data));
ASSERT(memcmp(p1, fetch_data, len1) == 0);
free(p1);
mg_close_connection(conn);
// Test SSL redirect, IP address
ASSERT((conn = mg_download("localhost", atoi(HTTP_PORT), 0,
ebuf, sizeof(ebuf), "%s",
"GET /foo HTTP/1.1\r\n\r\n")) != NULL);
ASSERT(strcmp(conn->request_info.uri, "302") == 0);
ASSERT(strcmp(mg_get_header(conn, "Location"),
"https://127.0.0.1:" HTTPS_PORT "/foo") == 0);
mg_close_connection(conn);
// Test SSL redirect, Host:
ASSERT((conn = mg_download("localhost", atoi(HTTP_PORT), 0,
ebuf, sizeof(ebuf), "%s",
"GET /foo HTTP/1.1\r\nHost: a.b:77\n\n")) != NULL);
ASSERT(strcmp(conn->request_info.uri, "302") == 0);
ASSERT(strcmp(mg_get_header(conn, "Location"),
"https://a.b:" HTTPS_PORT "/foo") == 0);
mg_close_connection(conn);
mg_stop(ctx);
}
void *TMongSrv::HandleRequest(enum mg_event event, struct mg_connection *conn,
const struct mg_request_info *request_info) {
// Since this is a static request handler, find out for which
// server instance this is for. The URL should tell that.
TChA UrlStr = "http://";
const char *Host = mg_get_header(conn, "Host");
UrlStr += Host != NULL ? Host : "localhost";
UrlStr += request_info->uri;
if (request_info->query_string != NULL) {
UrlStr += "?";
UrlStr += request_info->query_string;
}
void *processed = (void *) "yes";
TStr UrlS = UrlStr;
PUrl Url = TUrl::New(UrlS);
if (!Url->IsOk(usHttp)) {
TNotify::OnNotify(TNotify::StdNotify, ntErr,
TStr("Invalid URI: ") + UrlStr);
return NULL;
}
PMongSrv& Server = TMongSrv::Get(Url);
if (request_info->log_message != NULL) {
TNotify::OnNotify(Server->GetNotify(), ntErr,
TStr(request_info->log_message));
return NULL;
}
THttpRqMethod Method = hrmUndef;
if (strncmp(request_info->request_method, "POST", 4) == 0) {
Method = hrmPost;
} else if (strncmp(request_info->request_method, "GET", 3) == 0) {
Method = hrmGet;
} else if (strncmp(request_info->request_method, "HEAD", 4) == 0) {
Method = hrmHead;
} else {
return NULL;
}
TStr ContentType = mg_get_header(conn, THttp::ContTypeFldNm.CStr());
const char *ContentLenStr = mg_get_header(conn, "Content-Length");
PHttpRq Rq;
if (Method == hrmPost) {
int ContentLength = atoi(ContentLenStr);
char *Body = new char[ContentLength];
mg_read(conn, Body, ContentLength);
Rq = THttpRq::New(Method, Url, ContentType, TMem(Body, ContentLength));
delete[] Body;
} else {
Rq = THttpRq::New(Method, Url, ContentType, TMem());
}
int ClientId = Server->NewClient(conn, request_info);
try {
Server->OnHttpRq(ClientId, Rq);
Server->DropClient(ClientId);
return processed;
} catch (PExcept& Exception) {
TNotify::OnNotify(Server->GetNotify(), ntErr, Exception->GetStr());
Server->DropClient(ClientId);
return NULL;
}
}
const char* CivetServer::getHeader(struct mg_connection *conn, const std::string &headerName)
{
return mg_get_header(conn, headerName.c_str());
}
FILE *mg_upload(struct mg_connection *conn, const char *destination_dir,
char *path, int path_len) {
const char *content_type_header, *boundary_start;
char *buf, fname[1024], boundary[100], *s, *p;
int bl, n, i, j, headers_len, boundary_len, eof, buf_len, to_read, len = 0;
FILE *fp;
// Request looks like this:
//
// POST /upload HTTP/1.1
// Host: 127.0.0.1:8080
// Content-Length: 244894
// Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryRVr
//
// ------WebKitFormBoundaryRVr
// Content-Disposition: form-data; name="file"; filename="accum.png"
// Content-Type: image/png
//
// <89>PNG
// <PNG DATA>
// ------WebKitFormBoundaryRVr
// Extract boundary string from the Content-Type header
if ((content_type_header = mg_get_header(conn, "Content-Type")) == NULL ||
(boundary_start = mg_strcasestr(content_type_header,
"boundary=")) == NULL ||
(sscanf(boundary_start, "boundary=\"%99[^\"]\"", boundary) == 0 &&
sscanf(boundary_start, "boundary=%99s", boundary) == 0) ||
boundary[0] == '\0') {
return NULL;
}
boundary_len = strlen(boundary);
bl = boundary_len + 4; // \r\n--<boundary>
// buf
// conn->buf |<--------- buf_len ------>|
// |=================|==========|===============|
// |<--request_len-->|<--len--->| |
// |<-----------data_len------->| conn->buf + conn->buf_size
buf = conn->buf + conn->request_len;
buf_len = conn->buf_size - conn->request_len;
len = conn->data_len - conn->request_len;
for (;;) {
// Pull in headers
assert(len >= 0 && len <= buf_len);
to_read = buf_len - len;
if (to_read > left_to_read(conn)) {
to_read = (int) left_to_read(conn);
}
while (len < buf_len &&
(n = pull(NULL, conn, buf + len, to_read)) > 0) {
len += n;
}
if ((headers_len = get_request_len(buf, len)) <= 0) {
break;
}
// Fetch file name.
fname[0] = '\0';
for (i = j = 0; i < headers_len; i++) {
if (buf[i] == '\r' && buf[i + 1] == '\n') {
buf[i] = buf[i + 1] = '\0';
// TODO(lsm): don't expect filename to be the 3rd field,
// parse the header properly instead.
sscanf(&buf[j], "Content-Disposition: %*s %*s filename=\"%1023[^\"]",
fname);
j = i + 2;
}
}
// Give up if the headers are not what we expect
if (fname[0] == '\0') {
break;
}
// Move data to the beginning of the buffer
assert(len >= headers_len);
memmove(buf, &buf[headers_len], len - headers_len);
len -= headers_len;
conn->data_len = conn->request_len + len;
// We open the file with exclusive lock held. This guarantee us
// there is no other thread can save into the same file simultaneously.
fp = NULL;
// Construct destination file name. Do not allow paths to have slashes.
s = fname;
if ((p = strrchr(fname, '/')) != NULL && p > s) s = p;
if ((p = strrchr(fname, '\\')) != NULL && p > s) s = p;
// Open file in binary mode. TODO: set an exclusive lock.
snprintf(path, path_len, "%s/%s", destination_dir, s);
if ((fp = fopen(path, "wb")) == NULL) {
break;
}
// Read POST data, write into file until boundary is found.
eof = n = 0;
do {
len += n;
for (i = 0; i < len - bl; i++) {
if (!memcmp(&buf[i], "\r\n--", 4) &&
!memcmp(&buf[i + 4], boundary, boundary_len)) {
// Found boundary, that's the end of file data.
fwrite(buf, 1, i, fp);
eof = 1;
memmove(buf, &buf[i + bl], len - (i + bl));
len -= i + bl;
break;
}
}
if (!eof && len > bl) {
fwrite(buf, 1, len - bl, fp);
memmove(buf, &buf[len - bl], bl);
len = bl;
}
to_read = buf_len - len;
if (to_read > left_to_read(conn)) {
to_read = (int) left_to_read(conn);
}
} while (!eof && (n = pull(NULL, conn, buf + len, to_read)) > 0);
conn->data_len = conn->request_len + len;
if (eof) {
rewind(fp);
return fp;
} else {
fclose(fp);
}
}
return NULL;
}
static void *callback__(enum mg_event event,
struct mg_connection *conn,
const struct mg_request_info *request_info) {
if (event == MG_NEW_REQUEST) {
bool is_zs;
{
char*s=request_info->uri;
int i=0;
for(;*s;s++,i++);
s=request_info->uri;
is_zs=(i>=4&&s[i-4]=='.'&&s[i-3]=='w'&&s[i-2]=='z'&&s[i-1]=='s');
}
if(is_zs){
void* qu=qu_new_(shangji_);
char out[8]="";
int err;
const char* ret="";
for(;;){
{
char* echo_def=new char[echo_def_fmt_.size()+32];
sprintf(echo_def,echo_def_fmt_.c_str(),sprintf,mg_printf,conn,out);
err=var_new_(jsq_,qu,kw_echo_.c_str(),echo_def,true,vartype_def_,false);
delete echo_def;
if(err)
break;
}
if((err=var_new_(jsq_,qu,"ip",inet_ntoa(conn->client.rsa.u.sin.sin_addr),true,vartype_var_,false)))
break;
{
const char *cl=mg_get_header(conn, "Content-Length");
if(cl){
size_t cl1=atoi(cl);
const char* ct=mg_get_header(conn, "Content-Type");
std::string boundary;
if(ct){
const char* ct1="multipart/form-data; boundary=";
for(;;ct++,ct1++){
if(!*ct1){
boundary=ct;
break;
}
if(*ct!=*ct1)
break;
}
}
if(boundary.empty()){
char* postdata=new char[cl1+1];
postdata[mg_read(conn, postdata, cl1)]=0;
qu_var_new_form_url__(qu,postdata,1,&err);
delete postdata;
if(err)
break;
}else{
std::string buf2;
{
char*buf=new char[128];
for(;;){
int siz=mg_read(conn, buf, 128);
if(siz<=0)
break;
for(int i=0;i<siz;i++)
buf2.append(1,buf[i]);
}
delete buf;
}
size_t pos1=0;
std::string sp="\r\n\r\n";
for(;;){
size_t pos2=buf2.find(boundary,pos1);
if(pos2==std::string::npos)
break;
if(pos1>0){
std::string value,name,filename,s,s2;
size_t posp=buf2.find(sp,pos1);
bool is2=false;
for(size_t i=pos1;i<posp+2/*\r\n*/;i++){
char c=buf2[i];
//printf("%c",c);
if(c=='\n'||c==';'){
//printf("<%s=%s>",s.c_str(),s2.c_str());
if(is2){
if(s=="name")
name=s2;
else if(s=="filename")
filename=s2;
is2=false;
}
s.clear();
continue;
}
if(c=='='||c==':'){
is2=true;
s2.clear();
continue;
}
if((c>=0&&c<=' ')||c=='"')
continue;
if(is2)
s2+=c;
else
s+=c;
}
//printf("|\n");
size_t i_b=posp+sp.length(),
i_e=pos2-4/*\r\n--*/;
if(i_b<i_e){
/*for(size_t i=i_b;i<i_e;i++){
char c=buf2[i];
if(c>=' '&&c<='~')
printf("%c",c);
else if(c=='\n')
printf("</\n");
else
printf(" %i ",c);
}*/
if(filename.empty()){
value=buf2.substr(i_b,i_e-i_b);
}else{
filename=uploadir_+filename;
value=filename;
FILE *fp;
if ((fp = fopen(filename.c_str(), "wb+")) == NULL){
}else{
fwrite(buf2.c_str()+i_b, 1, i_e-i_b, fp);
if (ferror(fp)){
}
(void) fclose(fp);
}
}
}
//printf("|%u-%u-%u/%s=%s;\n|\n|\n",pos1,posp,pos2,name.c_str(),value.c_str());
if((err=var_new_(jsq_,qu,name.c_str(),value.c_str(),false,vartype_var_,false)))
break;
}
pos1=pos2+boundary.size()+2/*\r\n*/;
}
if(err)
break;
}
}
}
/*for(int i=0;i<request_info->num_headers;i++){
printf("%s\t%s\n",request_info->http_headers[i].name,request_info->http_headers[i].value);
}*/
std::string script=mg_get_option(ctx_, "document_root");
script+=request_info->uri;
char* qs=request_info->query_string;
if(qs){
qu_var_new_form_url__(qu,qs,1,&err);
if(err)
break;
}
ret=cb_(jsq_,qu,&err,script.c_str(),true,0);
qu_delete_(qu);
break;
}
//printf("out%s\n",out);
switch(err){
case jieshiqi_err_go_+keyword_end_:
case jieshiqi_err_go_+keyword_exit_:
break;
default:
if(err){
if(!out[0])
mg_printf(conn, "HTTP/1.1 200 OK\r\n"
"Content-Type: text/plain\r\n\r\n");
if(err>=jieshiqi_err_){
err-=jieshiqi_err_;
//mg_printf(conn, "%s", ret);
mg_printf(conn, "%s%s", l4_err_(jsq_),l4_errinfo_(jsq_,err));
l4_err_clear_(jsq_);
}else
mg_printf(conn, "%s err%d", ret,err);
}
break;
}
return (void*)"";
}
}
return NULL;
}
