void read_html_request(int fd, struct node* slaves){
char* request;
char* dir;
int c = 0;
ssize_t len;
int file_id = -1;
request = malloc(100);
c = read(fd, request, 100);
printf("HTML REQUEST: %s\n", request);
dir = strtok(request, " ");
if(strcmp(dir, "/") == 0) {
printf("UDERZAMY PO GŁÓWNĄ\n");
serve_files_page(fd);
}
else {
file_id = atoi(strtok(dir, "/"));
printf("UDERZAMY PO KONKRETNY PLIK NUMER: %d\n", file_id);
serve_file(fd, file_id, slaves);
}
free(request);
close(fd);
}
/**
* @brief authenticated - called for all request from authenticated clients.
* @param connection
* @param ip_addr
* @param mac
* @param url
* @param client
* @return
*
* It's unsual to received request from clients which are already authed.
* Happens when the user:
* - clicked in multiple windows on "accept" -> redirect to origin - no checking
* - when the user reloaded a splashpage -> redirect to origin
* - when a user calls deny url -> deauth it
*/
static int authenticated(struct MHD_Connection *connection,
const char *ip_addr,
const char *mac,
const char *url,
t_client *client)
{
s_config *config = config_get_config();
const char *redirect_url;
const char *host = NULL;
char redirect_to_us[128];
MHD_get_connection_values(connection, MHD_HEADER_KIND, get_host_value_callback, &host);
if (is_splashpage(host, url) ||
check_authdir_match(url, config->authdir)) {
redirect_url = get_redirect_url(connection);
/* TODO: what should we do when we get such request? */
if (redirect_url == NULL || strlen(redirect_url) == 0)
return show_splashpage(connection, client);
else
return authenticate_client(connection, ip_addr, mac, redirect_url, client);
} else if (check_authdir_match(url, config->denydir)) {
auth_client_action(ip_addr, mac, AUTH_MAKE_DEAUTHENTICATED);
snprintf(redirect_to_us, 128, "http://%s:%u/", config->gw_address, config->gw_port);
return send_redirect_temp(connection, redirect_to_us);
}
/* user doesn't wants the splashpage or tried to auth itself */
return serve_file(connection, client, url);
}
static void *accept_request(void *arg)
{
char buf[1024];
char method [255];
char url[255];
char path[512];
/* int numchars; */
char *query_string = NULL;
int cgi = 0;
size_t i, j;
struct stat st;
int client = (int)(intptr_t)arg;
/* numchars = get_line(client, buf, sizeof(buf)); */
get_line(client, buf, sizeof(buf));
i = 0; j = 0;
while (!isspace(buf[j]) && (i < sizeof(method) - 1)) {
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
i = 0;
while ((isspace(buf[j])) && (j < sizeof(buf)))
j++;
while ((!isspace(buf[j])) && (i < sizeof(url) - 1) && (j < sizeof(buf))) {
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
if (strcasecmp(method, "GET") == 0) {
query_string = url;
while ((*query_string != '?') && (*query_string != '\n'))
query_string++;
if (*query_string == '?') {
cgi = 1;
*query_string = '\0';
query_string++;
}
}
puts(url);
sprintf(path, "htdocs%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
not_found(client);
} else {
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if (!cgi)
serve_file(client, path);
}
close(client);
return NULL;
}
/* Thread: httpd */
static void
httpd_gen_cb(struct evhttp_request *req, void *arg)
{
const char *req_uri;
char *uri;
char *ptr;
req_uri = evhttp_request_get_uri(req);
if (!req_uri)
{
redirect_to_index(req, "/");
return;
}
uri = strdup(req_uri);
ptr = strchr(uri, '?');
if (ptr)
{
DPRINTF(E_SPAM, L_HTTPD, "Found query string\n");
*ptr = '\0';
}
ptr = uri;
uri = evhttp_decode_uri(uri);
free(ptr);
/* Dispatch protocol-specific URIs */
if (rsp_is_request(req, uri))
{
rsp_request(req);
goto out;
}
else if (daap_is_request(req, uri))
{
daap_request(req);
goto out;
}
else if (dacp_is_request(req, uri))
{
dacp_request(req);
goto out;
}
DPRINTF(E_DBG, L_HTTPD, "HTTP request: %s\n", uri);
/* Serve web interface files */
serve_file(req, uri);
out:
free(uri);
}
int main (int ac, char **av)
{
CC_SPORT *p = (CC_SPORT *) NULL;
CC_SFILE *f = (CC_SFILE *) NULL;
int rval = 0;
if (parseargs (ac, av))
return 0;
CCutil_signal_init ();
if (debug) {
printf ("Serving files for %s\n", probname); fflush (stdout);
}
p = CCutil_snet_listen (probport);
if (p == (CC_SPORT *) NULL) {
fprintf (stderr, "CCutil_snet_listen failed\n");
rval = 1;
goto CLEANUP;
}
for (;;) {
if (debug) {
printf ("Waiting for connection\n"); fflush (stdout);
}
f = CCutil_snet_receive (p);
if (f == (CC_SFILE *) NULL) {
fprintf (stderr, "CCutil_snet_receive failed\n");
continue;
}
if (debug) {
printf ("Received connection\n"); fflush (stdout);
}
rval = serve_file (f, probname, run_silently);
if (rval) {
fprintf (stderr, "serve_file failed\n");
if (CCutil_sclose (f)) {
fprintf (stderr, "CCutil_sclose failed\n");
}
continue;
}
if (debug) {
printf ("Closing connection\n"); fflush (stdout);
}
rval = CCutil_sclose (f);
if (rval) {
fprintf (stderr, "CCutil_sclose failed\n");
}
f = (CC_SFILE *) NULL;
}
CLEANUP:
if (f != (CC_SFILE *) NULL) CCutil_sclose (f);
if (p != (CC_SPORT *) NULL) CCutil_snet_unlisten (p);
return rval;
}
int
main(int argc, char **argv)
{
int fd;
int nfd;
int c;
/* process arguments */
while ((c = getopt(argc, argv, POS "d")) != -1) {
switch (c) {
case 'd':
debug = 1;
break;
default:
usage();
}
}
argc -= optind;
argv += optind;
if (argc != 2)
usage();
fd = setup_listener(atoi(argv[0]));
if (fd == -1)
exit(1);
/* don't bother reaping, this is a test program... */
signal(SIGCHLD, SIG_IGN);
for (;;) {
pid_t kid;
nfd = accept(fd, NULL, NULL);
kid = fork();
switch (kid) {
case -1:
/* XXXrcd: error. */
close(nfd);
fprintf(stderr, "fork: %s\n", strerror(errno));
break;
case 0:
close(fd);
serve_file(nfd, argv[1]);
exit(0);
default:
close(nfd);
break;
}
}
}
/**
* @brief preauthenticated - called for all request of a client in this state.
* @param connection
* @param ip_addr
* @param mac
* @return
*/
static int preauthenticated(struct MHD_Connection *connection,
const char *ip_addr,
const char *mac,
const char *url,
t_client *client)
{
char *host = NULL;
const char *redirect_url;
s_config *config = config_get_config();
if (!client) {
client = add_client(ip_addr);
if (!client)
return send_error(connection, 503);
}
MHD_get_connection_values(connection, MHD_HEADER_KIND, get_host_value_callback, &host);
/* check if this is a redirect querty with a foreign host as target */
if(is_foreign_hosts(connection, host)) {
return redirect_to_splashpage(connection, client, host, url);
}
/* request is directed to us */
/* check if client wants to be authenticated */
if(check_authdir_match(url, config->authdir)) {
/* Only the first request will redirected to config->redirectURL.
* When the client reloads a page when it's authenticated, it should be redirected
* to their origin url
*/
if (config->redirectURL)
redirect_url = config->redirectURL;
else
redirect_url = get_redirect_url(connection);
if (try_to_authenticate(connection, client, host, url)) {
return authenticate_client(connection, ip_addr, mac, redirect_url, client);
} else {
/* user used an invalid token, redirect to splashpage but hold query "redir" intact */
return encode_and_redirect_to_splashpage(connection, redirect_url);
}
}
if(is_splashpage(host, url)) {
return show_splashpage(connection, client);
}
/* no special handling left - try to serve static content to the user */
return serve_file(connection, client, url);
}
int httpd_response(struct client *cli, int code, char *reason)
{
Logger(LOG_INFO, 0, "%s...\n", __FUNCTION__);
Logger(LOG_INFO, 0, "code:%d...\n", code);
if (code == 0)
{
if ( cli->req.method == HTTP_MSG_GET )
{
URL url;
prase_url(cli->req.url, &url);
serve_file(cli->clientfd, url.file_path);
}
}
return 0;
}
static void
handle_clutch( struct evhttp_request * req,
struct tr_rpc_server * server )
{
const char * clutchDir = tr_getClutchDir( server->session );
assert( !strncmp( req->uri, "/transmission/web/", 18 ) );
if( !clutchDir || !*clutchDir )
{
send_simple_response( req, HTTP_NOTFOUND,
"<p>Couldn't find Transmission's web interface files!</p>"
"<p>Users: to tell Transmission where to look, "
"set the TRANSMISSION_WEB_HOME environmental "
"variable to the folder where the web interface's "
"index.html is located.</p>"
"<p>Package Builders: to set a custom default at compile time, "
"#define PACKAGE_DATA_DIR in libtransmission/platform.c "
"or tweak tr_getClutchDir() by hand.</p>" );
}
else
{
char * pch;
char * subpath;
char * filename;
subpath = tr_strdup( req->uri + 18 );
if(( pch = strchr( subpath, '?' )))
*pch = '\0';
filename = tr_strdup_printf( "%s%s%s",
clutchDir,
TR_PATH_DELIMITER_STR,
subpath && *subpath ? subpath : "index.html" );
serve_file( req, server, filename );
tr_free( filename );
tr_free( subpath );
}
}
/**
* @brief authenticated - called for all request from authenticated clients.
* @param connection
* @param ip_addr
* @param mac
* @param url
* @param client
* @return
*
* It's unsual to received request from clients which are already authed.
* Happens when the user:
* - clicked in multiple windows on "accept" -> redirect to origin - no checking
* - when the user reloaded a splashpage -> redirect to origin
* - when a user calls deny url -> deauth it
*/
static int authenticated(struct MHD_Connection *connection,
const char *ip_addr,
const char *mac,
const char *url,
t_client *client)
{
s_config *config = config_get_config();
const char *redirect_url;
const char *host = NULL;
char redirect_to_us[128];
MHD_get_connection_values(connection, MHD_HEADER_KIND, get_host_value_callback, &host);
if (is_splashpage(host, url) ||
check_authdir_match(url, config->authdir)) {
redirect_url = get_redirect_url(connection);
/* TODO: what should we do when we get such request? */
if (redirect_url == NULL || strlen(redirect_url) == 0)
return show_splashpage(connection, client);
else
return authenticate_client(connection, ip_addr, mac, redirect_url, client);
} else if (check_authdir_match(url, config->denydir)) {
auth_client_action(ip_addr, mac, AUTH_MAKE_DEAUTHENTICATED);
snprintf(redirect_to_us, 128, "http://%s:%u/", config->gw_address, config->gw_port);
return send_redirect_temp(connection, redirect_to_us);
}
/* check if this is an late request meaning the user tries to get the internet, but ended up here,
* because the iptables rule came to late */
if (is_foreign_hosts(connection, host)) {
/* might happen if the firewall rule isn't yet installed */
return send_refresh(connection);
}
/* user doesn't wants the splashpage or tried to auth itself */
return serve_file(connection, client, url);
}
void* accept_request(void* client1)
//accept_request解析header里面的第一行获得request method(get/post)和请求路径，映射到htdoc文件夹下的路径，
//其中当对应的文件可执行的时候，就调用execute_cgi函数
{
int client = (intptr_t)client1;
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client); // 仅仅支持GET和POST方法，否则抛出未支持的方法
return NULL;
}
if (strcasecmp(method, "POST") == 0)
cgi = 1;
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?')
{
cgi = 1;
*query_string = '\0';
query_string++;
}
}
sprintf(path, "htdocs%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
cgi = 1;
if (!cgi)
serve_file(client, path);
else
execute_cgi(client, path, method, query_string);
}
close(client);
return NULL;
}
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf));//把client里的\r都换成\n
i = 0; j = 0;
//找出method是get还是post，只支持这两种方法
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
//函数说明 strcasecmp()用来比较参数s1和s2字符串，比较时会自动忽略大小写的差异。
//返回值 若参数s1和s2字符串相等则返回0。s1大于s2则返回大于0 的值，s1 小于s2 则返回小于0的值。
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);//返回给浏览器表明收到的 HTTP 请求所用的 method 不被支持。
return;
}
if (strcasecmp(method, "POST") == 0)
cgi = 1;
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
//找出URL
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?')
{
cgi = 1;
*query_string = '\0';
query_string++;
}
}
sprintf(path, "htdocs%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
cgi = 1;
if (!cgi)
serve_file(client, path);
else
execute_cgi(client, path, method, query_string);
}
close(client);
}
void
accept_request(nunetwork_socket client, struct nunetwork_headerstruct *headerbuf)
{
int auth_form = 0;
int p = 0,i,t;
char path[512], parameters[512];
char env_str[512];
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI program */
char *query_string = NULL;
char *tmp_str = NULL;
char *tmp_url = NULL;
char *client_sid = " ";
char method[5];
char url[256];
char header[256];
char value[256];
/* Vars for processing HTTP 304*/
/*enum en_day { Sun = 0, Mon, Tue, Wed, Thu, Fri, Sat} days;
enum en_month { Jan = 0, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec } months;*/
/*char *withoutsession[] = {
"/netustad.css",
"/authform",
"/images/bg.png",
"/images/buton_0.png",
"/images/buton_1.png",
"/images/buton_2.png",
"/images/buton_3.png",
"/images/buton_4.png",
"/images/buton_5.png",
"/images/buton_6.png",
"/images/buton_7.png",
"/images/banner.png",
"/images/banner-alt.png",
"/images/menu_login.png",
"/images/menu_rulelist.png",
"/images/menu_addrule.png",
"/images/menu_logout.png",
NULL
};
int ifwithoutsession=0;*/
/*struct tm zamanstr;
time_t zaman_t;
char str4[5]="123";*/
char *start;
/*****************************************/
/* Processing the header buffer */
/* GET request is saved to be processed at the end*/
for (t=0; t< headerbuf->number_of_headers; t++) {
if (!strcasecmp(headerbuf->headers[t].header_id, "POST") ) {
/* sorry maybe next time */
unimplemented(client);
return;
} else if (!strcasecmp(headerbuf->headers[t].header_id, "HEAD")) {
tmp_url = strdup(headerbuf->headers[t].header_value);
/*Getting the requested url */
start = headerbuf->headers[t].header_value;
while (*start!=' ' || *start!='\t') start++;
tmp_url = strstr(start, "HTTP/") - 1;
while ( *tmp_url!= ' ' || *tmp_url != '\t' ) tmp_url--;
snprintf(url, tmp_url - start + 1, "script%s", start );
headers(client, url);
return;
} else if (!strcasecmp(headerbuf->headers[t].header_id, "GET")) {
/* this is it ... getting the method and the url without HTTP id */
strncpy(method, headerbuf->headers[t].header_id, sizeof(method));
strncpy(url, headerbuf->headers[t].header_value, sizeof(url));
i=0; while(url[i++]!=' ');
url[i-1]='\0';
/*} else if (!strcasecmp(headerbuf->headers[t].header_id, "If-Modified-Since")) {*/
/* Processing If-Modified-Since header value if its not related with cgis */
/*if ( (strstr(url, ".png")!=NULL && strstr(url, "images")!=NULL) ||
strstr(url, "netustad.css") ) {*/
/* Getting Day */
/* HTTP/1.1 304 Not Modified
Date: Fri, 31 Dec 1999 23:59:59 GMT */
/*start = headerbuf->headers[t].header_value;
if (strlen(start)>10) {
while (*start==' ') start++;
start+=5;
snprintf(str4, 2, start, "%s");
zamanstr.tm_mday=atoi(start);
start+=2;
snprintf(str4, 3, start, "%s");
zamanstr.tm_mon=months[str4];
start+=4;
snprintf(str4, 4, start, "%s");
zamanstr.tm_year= atoi(str4)-1900;
start+=5;
snprintf(str4, 2, start, "%s");
zamanstr.tm_hour=atoi(str4);
start+=3;
snprintf(str4, 2, start, "%s");
zamanstr.tm_min=atoi(str4);
start+=3;
snprintf(str4, 2, start, "%s");
zamanstr.tm_sec=atoi(str4);
zamanstr.tm_isdst=-1;
zaman_t = mktime(&zamanstr);
}
}*/
}
}
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?') {
cgi = 1;
*query_string = '\0';
query_string++;
}
/*******************/
/* Parse SessionID */
/*******************/
if (query_string[0] == 0) {
tmp_str = url;
tmp_url = strtok(tmp_str, "$\n");
while (tmp_url != NULL && (int) p <= (int) strlen(value))
value[p++] = *tmp_url++;
} else {
tmp_str = strdup(query_string);
query_string = strtok(tmp_str, "$\n");
}
client_sid = strtok(NULL, "$\n");
if (client_sid == 0)
client_sid = "$";
/****************************/
/* add script folder to url */
/****************************/
snprintf(path, sizeof (path)-1, "script%s", url);
/*****************************/
/* Check Unwanted Characters */
/*****************************/
if (strstr(path, "..") != NULL) {
server_sid[0] = '$';
server_sid[1] = '\0';
snprintf(parameters, sizeof (parameters)-1,
" -- %s: %s. %s: %s\n",
(char *) gettext("Bad Request From"),
(char *) inet_ntoa(client_name.sin_addr),
(char *) gettext("The Request is"),
(char *) path);
log_msg(mainlogfile, parameters, 1);
log_msg(mainlogfile, gettext("Session Killed Because of Bad Request\n"), 1);
snprintf(auth_msg, sizeof (auth_msg)-1, " ");
auth_form = 1;
}
/************************/
/* Check Session Expire */
/************************/
time(¤tsec);
if ((long) currentsec - (long) lastactionsec <= sesexpiretime) { /* Session Not Expired */
time(&lastactionsec);
} else { /* Session Expired, close session */
server_sid[0] = '$';
server_sid[1] = '\0';
if (!(rightcmp(path, "/netustad.css") ||\
rightcmp(path, "/authform") ||\
rightcmp(path, "/images/bg.png") ||\
rightcmp(path, "/images/buton_0.png") ||\
rightcmp(path, "/images/buton_1.png") ||\
rightcmp(path, "/images/buton_2.png") ||\
rightcmp(path, "/images/buton_3.png") ||\
rightcmp(path, "/images/buton_4.png") ||\
rightcmp(path, "/images/buton_5.png") ||\
rightcmp(path, "/images/buton_6.png") ||\
rightcmp(path, "/images/buton_7.png") ||\
rightcmp(path, "/images/banner.png") ||\
rightcmp(path, "/images/banner-alt.png") ||\
rightcmp(path, "/images/editor.png") ||\
rightcmp(path, "/images/eraser.png") ||\
rightcmp(path, "/images/menu_rulelist.png") ||\
rightcmp(path, "/images/menu_addrule.png") ||\
rightcmp(path, "/images/menu_logout.png") ||\
rightcmp(path, "/images/menu_login.png"))) {
log_msg(mainlogfile, gettext("Administrator's Session Expired!\n"), 1);
}
/*t=0;
while (withoutsession[t]!=NULL && !rightcmp(path, withoutsession[t])) {
t++;
}
if (withoutsession[t]!=NULL && !rightcmp(path, withoutsession[t])) {
log_msg(mainlogfile, gettext("Administrator's Session Expired!\n"), 1);
} else {
ifwithoutsession=1;
}*/
snprintf(auth_msg, sizeof (auth_msg)-1, gettext("Session Expired!"));
auth_form = 1;
}
/********************/
/* Check Session ID */
/********************/
if (strcmp(server_sid, "$") != 0 && *client_sid != '$')
if (strcmp(client_sid, server_sid) != 0 ||
strcmp(client_ip,
(char *) inet_ntoa(client_name.sin_addr)) != 0) {
snprintf(auth_msg, sizeof (auth_msg)-1, gettext("You are not logged in!"));
auth_form = 1;
} else
auth_form = 0;
else {
if ((long) lastactionsec == 0)
snprintf(auth_msg, sizeof (auth_msg)-1, " ");
auth_form = 1;
}
/********************************/
/* Define Environment Variables */
/********************************/
snprintf(env_str, sizeof (env_str)-1, "netustadversion=%s", NUVERSION);
env_p[0] = strdup(env_str); /* netustad version */
snprintf(env_str, sizeof (env_str)-1, "work_path=%s/script", workdir);
env_p[1] = strdup(env_str); /* work_path */
env_p[2] = "auth_msg="; /* authform message */
snprintf(env_str, sizeof (env_str)-1, "server_sid=%s", server_sid);
env_p[3] = strdup(env_str); /* server session id */
snprintf(env_str, sizeof (env_str)-1, "fw_cmd=%s", fw_cmd);
env_p[4] = strdup(env_str); /* iptables command */
snprintf(env_str, sizeof (env_str)-1, "TEXTDOMAIN=%s", PACKAGE);
env_p[5] = strdup(env_str); /* TEXTDOMAIN (for gettext) */
snprintf(env_str, sizeof (env_str)-1, "TEXTDOMAINDIR=%s", PACKAGE_LOCALE_DIR);
env_p[6] = strdup(env_str); /* TEXTDOMAINDIR (for gettext) */
snprintf(env_str, sizeof (env_str)-1, "LC_ALL=%s", lc_all );
env_p[7] = strdup(env_str); /* Choose locale */
snprintf(env_str, sizeof (env_str)-1, "gettext_cmd=%s", gettext_cmd);
env_p[8] = strdup(env_str); /* gettext command */
snprintf(env_str, sizeof (env_str)-1, "cat_cmd=%s", cat_cmd);
env_p[9] = strdup(env_str); /* full path of cat command */
snprintf(env_str, sizeof (env_str)-1, "awk_cmd=%s", awk_cmd);
env_p[10] = strdup(env_str); /* full path of awk command */
snprintf(env_str, sizeof (env_str)-1, "MM_CHARSET=%s", gettext("charset"));
env_p[11] = strdup(env_str); /* charset environ */
snprintf(env_str, sizeof (env_str)-1, "LANG=%s", lc_all );
env_p[12] = strdup(env_str); /* LANG environ */
snprintf(env_str, sizeof (env_str)-1, "netstat_cmd=%s", netstat_cmd );
env_p[13] = strdup(env_str); /* netstat_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "grep_cmd=%s", grep_cmd );
env_p[14] = strdup(env_str); /* grep_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "tr_cmd=%s", tr_cmd );
env_p[15] = strdup(env_str); /* tr_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "sed_cmd=%s", sed_cmd );
env_p[16] = strdup(env_str); /* sed_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "tail_cmd=%s", tail_cmd );
env_p[17] = strdup(env_str); /* tail_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "route_cmd=%s", route_cmd );
env_p[18] = strdup(env_str); /* route_cmd environ */
snprintf(env_str, sizeof (env_str)-1, "QUERY_STRING=a");
env_p[19] = strdup(env_str); /* QUERY_STRING environ */
snprintf(env_str, sizeof (env_str)-1, "ifconfig_cmd=%s", ifconfig_cmd );
env_p[20] = strdup(env_str); /* ifconfig_cmd environ */
env_p[21] = NULL; /*temporary variable */
env_p[22] = NULL; /*temporary variable */
env_p[23] = NULL; /*parameter terminate */
/***************************/
/* Parse Requested Address */
/***************************/
/* If Logout Requested Close Session and Goto Auth */
if (rightcmp(path, "/logout")) {
server_sid[0] = '$';
server_sid[1] = '\0';
snprintf(auth_msg, sizeof (auth_msg)-1, gettext("You are logged out"));
log_msg(mainlogfile, gettext("Administrator logged out\n"), 1);
auth_form = 1;
/*} else if (ifwithoutsession && strcmp(withoutsession[t], "/authform")!=0) {
snprintf(path, sizeof(path)-1, "script%s", withoutsession[t]);
}*/
} else if (rightcmp(path, "/images/bg.png")) {
snprintf(path, sizeof (path)-1, "script/images/bg.png");
} else if (rightcmp(path, "/images/buton_0.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_0.png");
} else if (rightcmp(path, "/images/buton_1.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_1.png");
} else if (rightcmp(path, "/images/buton_2.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_2.png");
} else if (rightcmp(path, "/images/buton_3.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_3.png");
} else if (rightcmp(path, "/images/menu_login.png")) {
snprintf(path, sizeof(path)-1, "script/images/menu_login.png");
} else if (rightcmp(path, "/images/menu_logout.png")) {
snprintf(path, sizeof(path)-1, "script/images/menu_logout.png");
} else if (rightcmp(path, "/images/menu_addrule.png")) {
snprintf(path, sizeof(path)-1, "script/images/menu_addrule.png");
} else if (rightcmp(path, "/images/menu_rulelist.png")) {
snprintf(path, sizeof(path)-1, "script/images/menu_rulelist.png");
} else if (rightcmp(path, "/images/buton_4.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_4.png");
} else if (rightcmp(path, "/images/buton_5.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_5.png");
} else if (rightcmp(path, "/images/buton_7.png")) {
snprintf(path, sizeof(path)-1, "script/images/buton_7.png");
} else if (rightcmp(path, "/images/banner.png")) {
snprintf(path, sizeof(path)-1, "script/images/banner.png");
} else if (rightcmp(path, "/images/banner-alt.png")) {
snprintf(path, sizeof(path)-1, "script/images/banner-alt.png");
} else if (rightcmp(path, "/images/editor.png")) {
snprintf(path, sizeof(path)-1, "script/images/editor.png");
} else if (rightcmp(path, "/images/eraser.png")) {
snprintf(path, sizeof(path)-1, "script/images/eraser.png");
} else if (rightcmp(path, "/netustad.css")) {
snprintf(path, sizeof(path)-1, "script/netustad.css");
}
/* Other Requests */
if (auth_form == 1 && \
!(rightcmp(path, "/auth")) && \
!(rightcmp(path, "/netustad.css")) && \
!(rightcmp(path, "/images/bg.png")) && \
!(rightcmp(path, "/images/buton_0.png")) && \
!(rightcmp(path, "/images/buton_1.png")) && \
!(rightcmp(path, "/images/buton_2.png")) && \
!(rightcmp(path, "/images/buton_3.png")) && \
!(rightcmp(path, "/images/buton_4.png")) && \
!(rightcmp(path, "/images/buton_5.png")) && \
!(rightcmp(path, "/images/buton_6.png")) && \
!(rightcmp(path, "/images/buton_7.png")) && \
!(rightcmp(path, "/images/banner.png")) && \
!(rightcmp(path, "/images/banner-alt.png")) && \
!(rightcmp(path, "/images/editor.png")) && \
!(rightcmp(path, "/images/eraser.png")) && \
!(rightcmp(path, "/images/menu_logout.png")) && \
!(rightcmp(path, "/images/menu_addrule.png")) && \
!(rightcmp(path, "/images/menu_rulelist.png")) && \
!(rightcmp(path, "/images/menu_login.png"))) {
snprintf(env_str, sizeof (env_str)-1, "auth_msg=%s", auth_msg);
env_p[2] = strdup(env_str);
snprintf(path, sizeof (path)-1, "script/authform");
} else if (path[strlen(path) - 1] == '/') {
strncat(path, "showrule", (size_t) (sizeof (path) - 1 - strlen(path)));
} else if (rightcmp(path, "/edit")) {
snprintf(env_str, sizeof (env_str)-1, "ruleno=%s", strtok(query_string,"@\n"));
env_p[21] = strdup(env_str);
#ifdef LINUX
snprintf(env_str, sizeof (env_str)-1, "chain=%s", strtok(NULL,"@\n"));
env_p[22] = strdup(env_str);
#endif
strncat(path, "form", (size_t) (sizeof (path) - 1 - strlen(path)));
} else if (rightcmp(path, "/if_edit")) {
snprintf(env_str, sizeof (env_str)-1, "if_name=%s", strtok(query_string,"@\n"));
env_p[21] = strdup(env_str);
snprintf(path, sizeof(path)-1, "script/if_edit");
} else if (rightcmp(path, "/nat_del")) {
snprintf(env_str, sizeof (env_str)-1, "nat_name=%s", strtok(query_string,"@\n"));
env_p[21] = strdup(env_str);
snprintf(path, sizeof(path)-1, "script/nat_del");
} else if (rightcmp(path, "/rt_del")) {
snprintf(env_str, sizeof (env_str)-1, "route=%s", strtok(query_string,"@\n"));
env_p[21] = strdup(env_str);
snprintf(path, sizeof(path)-1, "script/rt_del");
} else if (rightcmp(path, "/auth") && auth_form == 1) {
snprintf(path, sizeof (path)-1, "%s", auth(query_string));
snprintf(env_str, sizeof (env_str)-1, "auth_msg=%s", auth_msg);
env_p[2] = strdup(env_str);
snprintf(env_str, sizeof (env_str)-1, "server_sid=%s", server_sid);
env_p[3] = strdup(env_str);
#ifdef FREEBSD
} else if (rightcmp(path, "/write")) {
snprintf(path, sizeof(path)-1, "script/writeconfig");
#endif
}
/* If Rule Deleting Requested ("del" word) */
if (rightcmp(path, "/del")) {
strncpy(path, fw_cmd, sizeof (path)-1);
deleterule(client, path, header, query_string);
} else if (rightcmp(path, "/addnew")) {
strncpy(path, fw_cmd, sizeof (path)-1);
addnewrule(client, path, header, query_string);
} else if (rightcmp(path, "/applyedit")) {
strncpy(path, fw_cmd, sizeof (path)-1);
editrule(client, path, header, query_string);
} else if (stat(path, &st) == -1) {
snprintf(log_msg_text, sizeof(log_msg_text)-1, gettext("File not found: %s"), path);
log_msg(logfile, log_msg_text, 1);
not_found(client);
} else {
if ((st.st_mode & S_IFMT) == S_IFDIR)
strncat(path, "/showrule",
(size_t) (sizeof (path) - 1 - strlen(path)));
if ((st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP)
|| (st.st_mode & S_IXOTH))
cgi = 1;
if (!cgi)
serve_file(client, path);
else
snprintf(env_str, sizeof (env_str)-1, "QUERY_STRING=%s", query_string);
env_p[19] = strdup(env_str); /* QUERY_STRING environ */
execute_cgi(client, path, header, query_string, env_p, 1);
}
return;
}
// Handle input from an HTTP socket.
void process_http_cb(socket_t *socket)
{
int used;
connection_t *ptr = ilist_fetch(connections, socket->fd);
if (ptr == NULL) {
printf("%d: Tried to get from list, but got NULL.\n", socket->fd);
return;
}
if (ptr->is_websocket) {
// Try to decode a frame.
frame_t *f = read_frame(socket->rbuf, socket->rbuf_len, &used);
if (f == NULL) {
return;
}
// TODO: Consume instead.
bcopy(socket->rbuf, socket->rbuf + used, socket->rbuf_len - used);
socket->rbuf_len -= used;
char *p = malloc(f->len + 1);
strncpy(p, f->payload, f->len);
p[f->len] = 0;
cmd_t *cmd = parse_msg(p);
if (cmd != NULL && cmd->type == CMD_EXECUTE) {
process_t *p = execute_cmd((cmd_execute_t *)cmd);
ilist_insert(processes, p);
sock_pid_t *sp = malloc(sizeof(sock_pid_t));
sp->socket = socket;
sp->pid = p;
// Write new_process message?
char format[] =
"{\"newProcess\" : {"
"\"pid\" : %d, \"command\" : \"%s\","
"\"startTime\" : %ld,"
"\"requestId\" : %d}}";
char str[1000];
struct timeval tp;
gettimeofday(&tp, NULL);
long int time = tp.tv_sec * 1000 + tp.tv_usec;
sprintf(str, format, p->pid, ((cmd_execute_t*)cmd)->command_str, time, ((cmd_execute_t*)cmd)->request_id);
frame_t *frame = malloc(sizeof(frame_t *));
frame->fin = 1;
frame->len = strlen(str);
frame->opcode = WS_OP_BIN;
frame->payload = str;
int fr_len;
char *fr_str = write_frame(frame, &fr_len);
socket_write(socket, fr_str, fr_len);
socket_new(p->out, &process_child_out_cb, sp, socket);
ev_child *child_watcher = (struct ev_child*) malloc (sizeof(struct ev_child));
ev_child_init (child_watcher, child_cb, p->pid, 1);
child_watcher->data = socket;
ev_child_start(loop, child_watcher);
}
free(f->payload);
free(f);
free(p);
return;
}
request_t *req = parse_request(socket->rbuf, socket->rbuf_len, &used);
if (req) {
printf("%d: New Request: %s %s\n", socket->fd, req->method, req->uri);
// Take it out of the read buffer.
// TODO: Consume
bcopy(socket->rbuf, socket->rbuf + used, socket->rbuf_len - used);
socket->rbuf_len -= used;
// Got a request!
int upgraded = try_upgrade(req, ptr);
if (upgraded) {
printf("%d: Upgraded to WebSocket!\n", socket->fd);
} else if (!strcmp(req->uri, "/")) {
serve_file(socket, "static/index.html");
} else if (!strcmp(req->uri, "/tnrl.js")) {
serve_file(socket, "static/tnrl.js");
} else if (!strcmp(req->uri, "/tnrl.css")) {
serve_file(socket, "static/tnrl.css");
} else if (!strcmp(req->uri, "/favicon.ico")) {
serve_file(socket, "static/favicon.ico");
} else {
// Unknown URL?
char *str = "HTTP/1.1 404 Not Found\r\n\r\n";
socket_write(socket, str, strlen(str));
}
request_delete(req);
}
//printf("%s", buf);
}
void accept_request(void *arg){
int client = *(int*)arg;
char buf[1024];
size_t numchars;
char method[255];
char url[255];
char path[512];
char *query_string = NULL;
struct stat st;
size_t i, j;
numchars = get_line(client, buf, sizeof(buf));
i = 0;
while(!ISSPace(buf[i]) && i < numchars){
method[i] = buf[i];
i++;
}
method[i] = '\0';
if(strcasecmp(method, "GET") && strcasecmp(method, "POST")){//只处理GET和POST请求
unimplemented(client);
return;
}
j = 0;
while(ISSPace(buf[i]) && i < numchars){
i++;
}
while(!ISSPace(buf[i]) && i < numchars){
url[j] = buf[i];
i++;
j++;
}
url[j] = '\0';
if(strcasecmp(method, "GET") == 0){
query_string = url;
while((*query_string != '?') && (*query_string != '\0')){
query_string++;
}
if(*query_string == '?'){
*query_string = '\0';
query_string++;
}
}
sprintf(path, "htdcos%s", url);
if(path[strlen(path)-1] == '/'){
strcat(path, "index.html");
}
if(stat(path, &st) == -1){
while(numchars > 0 && strcmp("\n", buf)){
numchars = get_line(client, buf, sizeof(buf));
}
not_found(client);
printf("not found acc\n");
}else{
if((st.st_mode & S_IFMT) == S_IFDIR){
strcat(path, "/index.html");
}
serve_file(client, path);
}
printf("method: %s\n", method);
printf("url: %s\n", url);
printf("path: %s\n", path);
close(client);
}
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
//int cgi = 0; /* becomes true if server decides this is a CGI program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
close(client);
return;
}
/*
if (strcasecmp(method, "POST") == 0)
cgi = 1;
*/
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?')
{
// cgi = 1;
*query_string = '\0';
query_string++;
}
}
/*
serve_gpio_request(client, NULL);
*/
logMessage (LOG_DEBUG,"HTTPD processing %s %s\n",url, query_string);
if ( strcmp(url, "/gpio") == 0 || strcmp(url, "/gpio/") == 0) {
serve_gpio_request(client, query_string);
}
else if ( strcmp(url, "/led") == 0 || strcmp(url, "/led/") == 0)
{
serve_led_request(client, query_string);
}
else if ( strcmp(url, "/mh") == 0 || strcmp(url, "/mh/") == 0)
{
serve_meteohub_request(client, query_string);
}
else
{
if ( _gpioconfig_.docroot != 0 )
sprintf(path, "%s/%s", _gpioconfig_.docroot, url);
else
sprintf(path, "htdocs%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR)
{
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
} else {
serve_file(client, path);
}
/*
put cgi in here in the future
*/
}
}
close(client);
}
/* ********************************
* @描述：处理客户端HTTP请求
* @输入：[in] client: 客户端地址
* @输出： 无
* ********************************/
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j; // unsigned int
struct stat st; // 保存文件信息
int cgi = 0; // 当服务端认为它是一个CGI时变成1
char *query_string = NULL;
/* 得到请求的第一行 */
numchars = get_line(client, buf, sizeof(buf));
i = 0;
j = 0;
/* 把客户端的请求方法存到method数组,遇到空格则停止 */
while(!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
/* 既不是GET也不是POST的情况,忽略大小写进行比较 */
if(strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
return;
}
/* POST的情况，开启CGI */
if(strcasecmp(method, "POST") == 0)
cgi = 1;
/* 读取URL地址 */
i = 0;
while(ISspace(buf[j]) && (j < sizeof(buf)))// 过滤掉空格
j++;
while(!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j]; // 存下URL
i++; j++;
}
url[i] = '\0';
/* 处理GET方法 */
if(strcasecmp(method, "GET") == 0)
{
query_string = url;
/* 找到URL中的? */
while((*query_string != '?') && (*query_string != '\0'))
query_string++;
/* GET方法特点，?后面为参数 */
if(*query_string == '?')
{
cgi = 1;
*query_string = '\0';
query_string++; //query_string指向'?'后面
}
}
/* 格式化URL到path数组，html文件在htdocs目录中 */
sprintf(path, "htdocs%s", url);
/* 默认情况为index.html */
if(path[strlen(path) - 1] == '/')// path中最后一个字符
strcat(path, "index.html");
/* 根据路径找到对应文件 */
if(stat(path, &st) == -1) // 通过文件名path获取文件信息，并保存到st中,-1表示失败
{
/* 读取并丢弃header */
while((numchars > 0) && strcmp("\n", buf))// strcmp 相等返回0
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
/* 如果是目录，则默认使用该目录下的index.html 文件*/
if((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
cgi = 1;
if(!cgi) // cgi == 0
serve_file(client, path);
else // cgi == 1
execute_cgi(client, path, method, query_string);
}
/* 断开与客户端的连接 */
close(client);
}
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI program */
char *query_string = NULL;
/*得到请求的第一行*/
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
/*把客户端的请求方法存到 method 数组*/
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
/*如果既不是 GET 又不是 POST 则无法处理 */
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
return;
}
/* POST 的时候开启 cgi */
if (strcasecmp(method, "POST") == 0)
cgi = 1;
/*读取 url 地址*/
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
/*存下 url */
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
/*处理 GET 方法*/
if (strcasecmp(method, "GET") == 0)
{
/* 待处理请求为 url */
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
/* GET 方法特点，? 后面为参数*/
if (*query_string == '?')
{
/*开启 cgi */
cgi = 1;
*query_string = '\0';
query_string++;
}
}
/*格式化 url 到 path 数组，html 文件都在 htdocs 中*/
sprintf(path, "htdocs%s", url);
/*默认情况为 index.html */
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
/*根据路径找到对应文件 */
if (stat(path, &st) == -1) {
/*把所有 headers 的信息都丢弃*/
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
/*回应客户端找不到*/
not_found(client);
}
else
{
/*如果是个目录，则默认使用该目录下 index.html 文件*/
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if ((st.st_mode & S_IXUSR) || (st.st_mode & S_IXGRP) || (st.st_mode & S_IXOTH) )
cgi = 1;
/*不是 cgi,直接把服务器文件返回，否则执行 cgi */
if (!cgi)
serve_file(client, path);
else
execute_cgi(client, path, method, query_string);
}
/*断开与客户端的连接（HTTP 特点：无连接）*/
close(client);
}
int serve(int *clientSocket, http_message *message)
{
int bytecount = 0;
// SLOG(INFO, "A new HTTP request has been received <%s>.", message->request_uri);
if (message->request_uri)
{
if (strncmp(message->request_uri, URI_FILE, strlen(URI_FILE)) == 0)
{
std::string uri(message->request_uri);
std::string app, filepath;
std::size_t found = uri.find_first_of('/',strlen(URI_FILE));
if(found)
{
app = uri.substr(strlen(URI_FILE),found - strlen(URI_FILE));
filepath = uri.substr(found+1);
}
if (message->method == 1) // GET
{
bytecount = serve_file(clientSocket, message, filepath.c_str());
}
else if (message->method == 3) // POST
{
bytecount = recv_file(clientSocket, message, filepath.c_str());
if(bytecount>0)
{
onCMDEvent(app, filepath);
}
}
else
{
bytecount = serve_error(clientSocket, "400 Bad Request");
}
}
else if (strncmp(message->request_uri, URI_SIGCHECK, strlen(URI_SIGCHECK)) == 0)
{
char *filepath = message->request_uri + strlen(URI_SIGCHECK);
// bytecount = serve_sigcheck(clientSocket, message, filepath);
}
else if (strncmp(message->request_uri, URI_PING, strlen(URI_PING)) == 0)
{
bytecount = serve_ping(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_RUN, strlen(URI_RUN)) == 0)
{
char *filepath = message->request_uri + strlen(URI_RUN);
bytecount = serve_run(clientSocket, message, filepath);
}
else if (strncmp(message->request_uri, URI_OPEN, strlen(URI_OPEN)) == 0)
{
char *filepath = message->request_uri + strlen(URI_OPEN);
bytecount = serve_open(clientSocket, message, filepath);
}
else if (strncmp(message->request_uri, URI_EXPLORER, strlen(URI_EXPLORER)) == 0)
{
// bytecount = serve_explorer(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_CLEANTEMP, strlen(URI_CLEANTEMP)) == 0)
{
bytecount = serve_cleantemp(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_START, strlen(URI_START)) == 0)
{
// bytecount = serve_start(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_STOP, strlen(URI_STOP)) == 0)
{
// bytecount = serve_stop(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_SCREENSHOT, strlen(URI_SCREENSHOT)) == 0)
{
// bytecount = serve_screenshot(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_EVENTS, strlen(URI_EVENTS)) == 0)
{
// bytecount = serve_events(clientSocket, message);
}
else if (strncmp(message->request_uri, URI_DATA_POLLUTION, strlen(URI_DATA_POLLUTION)) == 0)
{
bytecount = serve_data_pollution(clientSocket, message);
}
else
{
//LOG(WARN,"Bad request: %s\n", message->request_uri);
bytecount = serve_error(clientSocket, "400 Bad Request");
}
}
else
{
// TODO empty request URI
bytecount = serve_error(clientSocket, "400 Bad Request");
}
//LOG(INFO,"Sent bytes %d\n", bytecount);
return bytecount;
}
void* accept_request(void* arg)
{
int client=(int)arg;
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0;/* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
//解析method:GET OR POST?
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
return NULL;
}
//如果method为POST，则开启CGI;
if (strcasecmp(method, "POST") == 0)
cgi = 1;
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
//获取method对应的url,例如：url=/color.cgi?color=red；
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
//如果method为GET,判断url中是否有CGI;
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?')
{
cgi = 1;
*query_string = '\0';
query_string++;
}
}
sprintf(path, "htdocs%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
//如果path指定的文件为可执行文件，则CGI置位;
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
cgi = 1;
if (!cgi)
serve_file(client, path);
else
execute_cgi(client, path, method, query_string);
}
close(client);
return NULL;
}
void accept_request(void *arg)
{
int client = *((int*)arg);
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
//读http 请求的第一行数据（request line），把请求方法存进 method 中
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
//如果请求的方法不是 GET 或 POST 任意一个的话就直接发送 response 告诉客户端没实现该方法
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
return;
}
//如果是 POST 方法就将 cgi 标志变量置一(true)
if (strcasecmp(method, "POST") == 0)
cgi = 1;
i = 0;
//跳过所有的空白字符(空格)
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
//然后把 URL 读出来放到 url 数组中
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
//如果这个请求是一个 GET 方法的话
if (strcasecmp(method, "GET") == 0)
{
//用一个指针指向 url
query_string = url;
//去遍历这个 url，跳过字符 ？前面的所有字符，如果遍历完毕也没找到字符 ？则退出循环
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
//退出循环后检查当前的字符是 ？还是字符串(url)的结尾
if (*query_string == '?')
{
//如果是 ？ 的话，证明这个请求需要调用 cgi，将 cgi 标志变量置一(true)
cgi = 1;
//从字符 ？ 处把字符串 url 给分隔会两份
*query_string = '\0';
//使指针指向字符 ？后面的那个字符
query_string++;
}
}
//将前面分隔两份的前面那份字符串，拼接在字符串htdocs的后面之后就输出存储到数组 path 中。相当于现在 path 中存储着一个字符串
sprintf(path, "htdocs%s", url);
//如果 path 数组中的这个字符串的最后一个字符是以字符 / 结尾的话，就拼接上一个"index.html"的字符串。首页的意思
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
//在系统上去查询该文件是否存在
if (stat(path, &st) == -1) {
//如果不存在，那把这次 http 的请求后续的内容(head 和 body)全部读完并忽略
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
//然后返回一个找不到文件的 response 给客户端
not_found(client);
}
else
{
LOG_INFO("accept request 1");
//文件存在，那去跟常量S_IFMT相与，相与之后的值可以用来判断该文件是什么类型的
//S_IFMT参读《TLPI》P281，与下面的三个常量一样是包含在<sys/stat.h>
if ((st.st_mode & S_IFMT) == S_IFDIR)
//如果这个文件是个目录，那就需要再在 path 后面拼接一个"/index.html"的字符串
strcat(path, "/index.html");
//S_IXUSR, S_IXGRP, S_IXOTH三者可以参读《TLPI》P295
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
//如果这个文件是一个可执行文件，不论是属于用户/组/其他这三者类型的，就将 cgi 标志变量置一
cgi = 1;
if (!cgi)
//如果不需要 cgi 机制的话，
serve_file(client, path);
else
//如果需要则调用
execute_cgi(client, path, method, query_string);
}
LOG_INFO("accept request end");
close(client);
}
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf));
i = 0; j = 0;
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
}
method[i] = '\0';
if (strcasecmp(method, "GET") && strcasecmp(method, "POST"))
{
unimplemented(client);
return;
}
if (strcasecmp(method, "POST") == 0)
cgi = 1;
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf)))
j++;
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
}
url[i] = '\0';
if (strcasecmp(method, "GET") == 0)
{
query_string = url;
while ((*query_string != '?') && (*query_string != '\0'))
query_string++;
if (*query_string == '?')
{
cgi = 1;
*query_string = '\0';
query_string++;
}
}
//sprintf(path, "htdocs%s", url);
sprintf(path, ".%s", url);
if (path[strlen(path) - 1] == '/')
strcat(path, "index.html");
if (stat(path, &st) == -1) {
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */
numchars = get_line(client, buf, sizeof(buf));
not_found(client);
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR)
strcat(path, "/index.html");
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) )
cgi = 1;
cgi = 0;//must not cgi
if (!cgi)
serve_file(client, path);
else
execute_cgi(client, path, method, query_string);
}
close(client);
}
// 处理客户端请求，服务器核心控制逻辑
void accept_request(int client)
{
char buf[1024];
int numchars;
char method[255];
char url[255];
char path[512];
size_t i, j;
struct stat st;
int cgi = 0; /* becomes true if server decides this is a CGI
* program */
char *query_string = NULL;
numchars = get_line(client, buf, sizeof(buf)); // 读取请求行
i = 0; j = 0;
while (!ISspace(buf[j]) && (i < sizeof(method) - 1))
{
method[i] = buf[j];
i++; j++;
} // 循环截取出请求方法
method[i] = '\0';
if (strcasecmp(method, "GET") && strcasecmp(method, "POST")) // 只接收GET和POST请求
{
unimplemented(client); // 响应未实现页面
return;
}
if (strcasecmp(method, "POST") == 0) // POST请求
cgi = 1;
i = 0;
while (ISspace(buf[j]) && (j < sizeof(buf))) // 刚才截取method后j定位到后面的一个空格处，现在一直向后移动j直到指向非空白字符
j++;
while (!ISspace(buf[j]) && (i < sizeof(url) - 1) && (j < sizeof(buf)))
{
url[i] = buf[j];
i++; j++;
} // 循环截取出请求的url资源
url[i] = '\0';
if (strcasecmp(method, "GET") == 0) // GET请求
{
query_string = url; // 查询字符串在url中的？号后面
while ((*query_string != '?') && (*query_string != '\0')) // 一直移动到？号处
query_string++;
if (*query_string == '?')
{
cgi = 1;
*query_string = '\0'; // ?号置为\0，url就切出来了
query_string++; // 查询字符串从？后面一个字符开始
}
}
sprintf(path, "htdocs%s", url); // htdocs/url/ htdocs/res.html
if (path[strlen(path) - 1] == '/') // 最后一个字符是‘/’，默认访问该目录下的 index.html 页面
strcat(path, "index.html");
if (stat(path, &st) == -1) { // 获取文件详细信息失败
while ((numchars > 0) && strcmp("\n", buf)) /* read & discard headers */ // 读取剩下的请求头
numchars = get_line(client, buf, sizeof(buf));
not_found(client); // 404
}
else
{
if ((st.st_mode & S_IFMT) == S_IFDIR) // 是一个目录，默认访问该目录下的 index.html 页面
strcat(path, "/index.html");
if ((st.st_mode & S_IXUSR) ||
(st.st_mode & S_IXGRP) ||
(st.st_mode & S_IXOTH) ) // 这个资源有执行权限 包括 所有者 同组 其他人
cgi = 1;
if (!cgi)
serve_file(client, path); // 请求的是个页面，返回这页面
else
execute_cgi(client, path, method, query_string); // cgi程序，可以执行这个程序，处理过程交给cgi程序
}
close(client); // 关闭client socket
}