server.c@ 73

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Last change on this file since 73 was 73, checked in by Nishi, on Sep 19, 2024 at 6:35:56 PM
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Rev	Line
[8]	1	/* $Id: server.c 73 2024-09-19 09:35:56Z nishi $ */
	2
[16]	3	#define SOURCE
	4
[43]	5	#include "../config.h"
	6
[8]	7	#include "tw_server.h"
	8
[43]	9	#ifndef NO_SSL
[12]	10	#include "tw_ssl.h"
[43]	11	#endif
	12
[8]	13	#include "tw_config.h"
[16]	14	#include "tw_http.h"
[18]	15	#include "tw_module.h"
	16	#include "tw_version.h"
[8]	17
	18	#include <unistd.h>
	19	#include <string.h>
[11]	20	#include <stdbool.h>
[20]	21	#include <stdarg.h>
[43]	22	#include <stdio.h>
	23	#include <stdlib.h>
[21]	24	#include <sys/stat.h>
[32]	25	#include <time.h>
[8]	26
[18]	27	#include <cm_string.h>
[8]	28	#include <cm_log.h>
[21]	29	#include <cm_dir.h>
[8]	30
	31	#ifdef __MINGW32__
	32	#include <winsock2.h>
[11]	33	#include <process.h>
[62]	34	#include <windows.h>
[32]	35
	36	#include "strptime.h"
[8]	37	#else
	38	#include <sys/select.h>
	39	#include <sys/socket.h>
	40	#include <arpa/inet.h>
	41	#include <netinet/in.h>
	42	#include <netinet/tcp.h>
	43	#endif
	44
	45	extern struct tw_config config;
[18]	46	extern char tw_server[];
[8]	47
	48	fd_set fdset;
	49	int sockcount = 0;
	50
[9]	51	SOCKADDR addresses[MAX_PORTS];
	52	int sockets[MAX_PORTS];
[8]	53
[70]	54	#ifdef __MINGW32__
	55	const char* reserved_names[] = {"CON", "PRN", "AUX", "NUL", "COM1", "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9", "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", "LPT9"};
	56	#endif
	57
[23]	58	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
	59	int tw_wildcard_match(const char* wildcard, const char* target) {
	60	const char pw = wildcard, pt = target;
	61
	62	while(1) {
	63	if(*pt == 0) {
	64	while(pw == '') pw++;
	65	return *pw == 0;
	66	} else if(*pw == 0) {
	67	return 0;
	68	} else if(pw == '') {
	69	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
	70	} else if(pw == '?' \|\| (pw == *pt)) {
	71	pw++;
	72	pt++;
	73	continue;
	74	} else {
	75	return 0;
	76	}
	77	}
	78	}
	79
[8]	80	void close_socket(int sock) {
	81	#ifdef __MINGW32__
	82	closesocket(sock);
	83	#else
	84	close(sock);
	85	#endif
	86	}
	87
	88	int tw_server_init(void) {
	89	int i;
	90	#ifdef __MINGW32__
	91	WSADATA wsa;
	92	WSAStartup(MAKEWORD(2, 0), &wsa);
	93	#endif
	94	for(i = 0; config.ports[i] != -1; i++)
	95	;
	96	sockcount = i;
	97	for(i = 0; config.ports[i] != -1; i++) {
	98	#ifdef NO_IPV6
	99	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	100	#else
	101	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
	102	#endif
	103	#ifdef __MINGW32__
	104	if(sock == INVALID_SOCKET)
	105	#else
	106	if(sock < 0)
	107	#endif
	108	{
	109	cm_log("Server", "Socket creation failure");
	110	return 1;
	111	}
	112	int yes = 1;
	113	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
	114	close_socket(sock);
	115	cm_log("Server", "setsockopt failure (reuseaddr)");
	116	return 1;
	117	}
	118	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
	119	close_socket(sock);
	120	cm_log("Server", "setsockopt failure (nodelay)");
	121	return 1;
	122	}
	123	#ifndef NO_IPV6
	124	int no = 0;
	125	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
	126	close_socket(sock);
	127	cm_log("Server", "setsockopt failure (IPv6)");
	128	return 1;
	129	}
	130	#endif
	131	memset(&addresses[i], 0, sizeof(addresses[i]));
	132	#ifdef NO_IPV6
	133	addresses[i].sin_family = AF_INET;
	134	addresses[i].sin_addr.s_addr = INADDR_ANY;
	135	addresses[i].sin_port = htons(config.ports[i]);
	136	#else
	137	addresses[i].sin6_family = AF_INET6;
	138	addresses[i].sin6_addr = in6addr_any;
	139	addresses[i].sin6_port = htons(config.ports[i]);
	140	#endif
	141	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
	142	close_socket(sock);
	143	cm_log("Server", "Bind failure");
	144	return 1;
	145	}
	146	if(listen(sock, 128) < 0) {
	147	close_socket(sock);
	148	cm_log("Server", "Listen failure");
	149	return 1;
	150	}
	151	sockets[i] = sock;
	152	}
	153	return 0;
	154	}
[9]	155
[16]	156	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
[43]	157	#ifndef NO_SSL
[16]	158	if(ssl == NULL) {
	159	return recv(s, data, len, 0);
	160	} else {
	161	return SSL_read(ssl, data, len);
	162	}
[43]	163	#else
	164	return recv(s, data, len, 0);
	165	#endif
[16]	166	}
	167
	168	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
[43]	169	#ifndef NO_SSL
[16]	170	if(ssl == NULL) {
	171	return send(s, data, len, 0);
	172	} else {
	173	return SSL_write(ssl, data, len);
	174	}
[43]	175	#else
	176	return send(s, data, len, 0);
	177	#endif
[16]	178	}
	179
[20]	180	#define ERROR_HTML \
[18]	181	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
	182	"<html>\n" \
	183	" <head>\n" \
[20]	184	" <title>%s</title>\n" \
[18]	185	" </head>\n" \
	186	" <body>\n" \
[20]	187	" <h1>%s</h1>\n" \
[18]	188	" <hr>\n" \
	189	" ", \
	190	address, \
	191	"\n" \
	192	" </body>\n" \
	193	"</html>\n"
	194
[32]	195	void _tw_process_page(SSL* ssl, int sock, const char* status, const char* type, FILE* f, const unsigned char* doc, size_t size, char** headers, time_t mtime, time_t cmtime) {
[18]	196	char construct[512];
[32]	197	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
	198	status = "304 Not Modified";
	199	type = NULL;
	200	size = 0;
	201	headers = NULL;
	202	f = NULL;
	203	doc = NULL;
	204	}
[18]	205	sprintf(construct, "%llu", (unsigned long long)size);
	206	tw_write(ssl, sock, "HTTP/1.1 ", 9);
	207	tw_write(ssl, sock, (char*)status, strlen(status));
	208	tw_write(ssl, sock, "\r\n", 2);
[24]	209	if(type != NULL) {
	210	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
	211	tw_write(ssl, sock, (char*)type, strlen(type));
	212	tw_write(ssl, sock, "\r\n", 2);
	213	}
[18]	214	tw_write(ssl, sock, "Server: ", 6 + 2);
	215	tw_write(ssl, sock, tw_server, strlen(tw_server));
	216	tw_write(ssl, sock, "\r\n", 2);
[24]	217	if(size != 0) {
	218	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
	219	tw_write(ssl, sock, construct, strlen(construct));
	220	tw_write(ssl, sock, "\r\n", 2);
[32]	221	if(mtime != 0) {
	222	struct tm* tm = gmtime(&mtime);
	223	char date[513];
	224	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
	225	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
	226	tw_write(ssl, sock, date, strlen(date));
	227	tw_write(ssl, sock, "\r\n", 2);
	228	}
[24]	229	}
	230	int i;
	231	if(headers != NULL) {
	232	for(i = 0; headers[i] != NULL; i += 2) {
	233	tw_write(ssl, sock, headers[i], strlen(headers[i]));
	234	tw_write(ssl, sock, ": ", 2);
	235	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
	236	tw_write(ssl, sock, "\r\n", 2);
	237	}
	238	}
[18]	239	tw_write(ssl, sock, "\r\n", 2);
[24]	240	if(doc == NULL && f == NULL) return;
[18]	241	size_t incr = 0;
	242	while(1) {
[22]	243	if(f != NULL) {
[21]	244	char buffer[128];
	245	fread(buffer, size < 128 ? size : 128, 1, f);
	246	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
[22]	247	} else {
[21]	248	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
	249	}
[18]	250	incr += 128;
[19]	251	if(size <= 128) break;
[18]	252	size -= 128;
	253	}
	254	}
	255
[32]	256	void tw_process_page(SSL* ssl, int sock, const char* status, const char* type, FILE* f, const unsigned char* doc, size_t size, time_t mtime, time_t cmtime) { _tw_process_page(ssl, sock, status, type, f, doc, size, NULL, mtime, cmtime); }
[24]	257
[18]	258	const char* tw_http_status(int code) {
[20]	259	if(code == 200) {
	260	return "200 OK";
[24]	261	} else if(code == 308) {
	262	return "308 Permanent Redirect";
[20]	263	} else if(code == 400) {
[18]	264	return "400 Bad Request";
[20]	265	} else if(code == 401) {
	266	return "401 Unauthorized";
	267	} else if(code == 403) {
	268	return "403 Forbidden";
	269	} else if(code == 404) {
	270	return "404 Not Found";
[18]	271	} else {
	272	return "400 Bad Request";
	273	}
	274	}
	275
	276	char* tw_http_default_error(int code, char* name, int port) {
	277	char address[1024];
	278	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
[20]	279
	280	char* st = cm_strdup(tw_http_status(code));
	281	char* st2;
	282	int i;
	283	for(i = 0; st[i] != 0; i++) {
	284	if(st[i] == ' ') {
	285	st2 = cm_strdup(st + i + 1);
	286	break;
	287	}
[18]	288	}
[20]	289	char* buffer = malloc(4096);
	290	char* str = cm_strcat3(ERROR_HTML);
	291	sprintf(buffer, str, st, st2);
	292	free(str);
	293	free(st);
	294	return buffer;
[18]	295	}
	296
	297	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port) {
	298	char* str = tw_http_default_error(error, name, port);
[32]	299	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
[18]	300	free(str);
	301	}
	302
[20]	303	void addstring(char** str, const char* add, ...) {
	304	int i;
	305	char cbuf[2];
	306	cbuf[1] = 0;
	307	va_list va;
	308	va_start(va, add);
	309	for(i = 0; add[i] != 0; i++) {
	310	cbuf[0] = add[i];
	311	if(add[i] == '%') {
	312	i++;
	313	if(add[i] == 's') {
	314	char* tmp = *str;
	315	str = cm_strcat(tmp, va_arg(va, const char));
	316	free(tmp);
	317	} else if(add[i] == 'h') {
	318	char* h = cm_html_escape(va_arg(va, const char*));
	319	char* tmp = *str;
	320	*str = cm_strcat(tmp, h);
	321	free(tmp);
	322	free(h);
[21]	323	} else if(add[i] == 'l') {
	324	char* h = cm_url_escape(va_arg(va, const char*));
	325	char* tmp = *str;
	326	*str = cm_strcat(tmp, h);
	327	free(tmp);
	328	free(h);
[20]	329	} else if(add[i] == 'd') {
	330	int n = va_arg(va, int);
	331	char* h = malloc(512);
	332	sprintf(h, "%d", n);
	333	char* tmp = *str;
	334	*str = cm_strcat(tmp, h);
	335	free(tmp);
	336	free(h);
	337	} else if(add[i] == '%') {
	338	char* tmp = *str;
	339	*str = cm_strcat(tmp, "%");
	340	free(tmp);
	341	}
	342	} else {
	343	char* tmp = *str;
	344	*str = cm_strcat(tmp, cbuf);
	345	free(tmp);
	346	}
	347	}
	348	}
	349
[22]	350	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
	351	char* mime = "application/octet-stream";
	352	if(ext == NULL) return mime;
	353	bool set = false;
	354	int i;
	355	for(i = 0; i < vhost_entry->mime_count; i++) {
[23]	356	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
[22]	357	mime = vhost_entry->mimes[i].mime;
	358	set = true;
	359	}
	360	}
	361	if(!set) {
	362	for(i = 0; i < config.root.mime_count; i++) {
[23]	363	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
[22]	364	mime = config.root.mimes[i].mime;
	365	}
	366	}
	367	}
	368	return mime;
	369	}
	370
	371	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
	372	char* icon = "";
	373	if(mime == NULL) return "";
	374	bool set = false;
	375	int i;
	376	for(i = 0; i < vhost_entry->icon_count; i++) {
[23]	377	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
[22]	378	icon = vhost_entry->icons[i].icon;
	379	set = true;
	380	}
	381	}
	382	if(!set) {
	383	for(i = 0; i < config.root.icon_count; i++) {
[23]	384	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
[22]	385	icon = config.root.icons[i].icon;
	386	}
	387	}
	388	}
	389	return icon;
	390	}
	391
[11]	392	#ifdef __MINGW32__
	393	struct pass_entry {
	394	int sock;
[12]	395	int port;
[11]	396	bool ssl;
[21]	397	SOCKADDR addr;
[11]	398	};
	399
	400	unsigned int WINAPI tw_server_pass(void* ptr) {
	401	int sock = ((struct pass_entry*)ptr)->sock;
	402	bool ssl = ((struct pass_entry*)ptr)->ssl;
[14]	403	int port = ((struct pass_entry*)ptr)->port;
[21]	404	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
[12]	405	free(ptr);
[11]	406	#else
[21]	407	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
[11]	408	#endif
[13]	409	char* name = config.hostname;
	410
[43]	411	#ifndef NO_SSL
[12]	412	SSL_CTX* ctx = NULL;
	413	SSL* s = NULL;
[15]	414	bool sslworks = false;
[12]	415	if(ssl) {
	416	ctx = tw_create_ssl_ctx(port);
	417	s = SSL_new(ctx);
	418	SSL_set_fd(s, sock);
	419	if(SSL_accept(s) <= 0) goto cleanup;
[15]	420	sslworks = true;
[12]	421	}
[43]	422	#else
	423	void* s = NULL;
	424	#endif
[16]	425	struct tw_http_request req;
[20]	426	struct tw_http_response res;
	427	struct tw_tool tools;
	428	res._processed = false;
	429	tw_init_tools(&tools);
[16]	430	int ret = tw_http_parse(s, sock, &req);
[17]	431	if(ret == 0) {
[21]	432	char* vhost = cm_strdup(config.hostname);
[20]	433	int i;
[32]	434	time_t cmtime = 0;
[70]	435	if(req.headers != NULL) {
[64]	436	for(i = 0; req.headers[i] != NULL; i += 2) {
	437	if(cm_strcaseequ(req.headers[i], "Host")) {
	438	free(vhost);
	439	vhost = cm_strdup(req.headers[i + 1]);
	440	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
	441	struct tm tm;
	442	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
[32]	443	#ifdef __MINGW32__
[64]	444	time_t t = 0;
	445	struct tm* btm = localtime(&t);
	446	cmtime = mktime(&tm);
	447	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
[32]	448	#else
[64]	449	cmtime = timegm(&tm);
[32]	450	#endif
[64]	451	}
[21]	452	}
	453	}
	454	cm_log("Server", "Host is %s", vhost);
	455	int port = s == NULL ? 80 : 443;
	456	char* host = cm_strdup(vhost);
[22]	457	for(i = 0; vhost[i] != 0; i++) {
	458	if(vhost[i] == ':') {
[21]	459	host[i] = 0;
	460	port = atoi(host + i + 1);
	461	break;
	462	}
	463	}
	464	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
	465	struct tw_config_entry* vhost_entry = tw_vhost_match(host, port);
[20]	466	for(i = 0; i < config.module_count; i++) {
	467	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
	468	if(mod_req != NULL) {
	469	int ret = mod_req(&tools, &req, &res);
	470	int co = ret & 0xff;
	471	if(co == _TW_MODULE_PASS) continue;
	472	if(co == _TW_MODULE_STOP) {
	473	res._processed = true;
	474	break;
	475	}
	476	if(co == _TW_MODULE_ERROR) {
	477	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port);
	478	break;
	479	}
	480	}
	481	}
	482	if(!res._processed) {
[21]	483	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
	484	char* path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
	485	cm_log("Server", "Filesystem path is %s", path);
[70]	486	bool rej = false;
	487	#ifdef __MINGW32__
[71]	488	char* rpath = cm_strdup(path);
[72]	489	for(i = strlen(rpath) - 1; i >= 0; i--) {
[73]	490	if(rpath[i] == '/') {
	491	int j;
	492	for(j = i + 1; rpath[j] != 0; j++) {
	493	if(rpath[j] == ':' \|\| rpath[j] == '.') {
	494	rpath[j] = 0;
	495	break;
	496	}
	497	}
[71]	498	break;
	499	}
	500	}
[70]	501	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
	502	char* n = cm_strcat("/", reserved_names[i]);
[71]	503	if(cm_nocase_endswith(rpath, n)) {
[70]	504	tw_http_error(s, sock, 403, name, port);
	505	free(n);
	506	rej = true;
	507	cm_log("Server", "XP Patch ; rejecting access to device");
	508	break;
	509	}
	510	free(n);
	511	}
[71]	512	free(rpath);
[70]	513	#endif
[21]	514	struct stat st;
[70]	515	if(!rej && stat(path, &st) == 0) {
[22]	516	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
[21]	517	tw_http_error(s, sock, 403, name, port);
[22]	518	} else if(S_ISDIR(st.st_mode)) {
[24]	519	if(req.path[strlen(req.path) - 1] != '/') {
[61]	520	cm_log("Server", "Accessing directory without the slash at the end");
[24]	521	char* headers[3] = {"Location", cm_strcat(req.path, "/"), NULL};
[32]	522	_tw_process_page(s, sock, tw_http_status(308), NULL, NULL, NULL, 0, headers, 0, 0);
[24]	523	free(headers[1]);
	524	} else {
	525	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
	526	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
	527	bool found = false;
	528	for(i = 0; i < index_count; i++) {
	529	char* p = cm_strcat3(path, "/", indexes[i]);
	530	FILE* f = fopen(p, "rb");
	531	if(f != NULL) {
	532	char* ext = NULL;
	533	int j;
	534	for(j = strlen(p) - 1; j >= 0; j--) {
	535	if(p[j] == '.') {
	536	ext = cm_strdup(p + j);
	537	break;
	538	} else if(p[j] == '/') {
	539	break;
	540	}
[22]	541	}
[24]	542	struct stat st;
	543	stat(p, &st);
	544	char* mime = tw_get_mime(ext, vhost_entry);
[32]	545	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
[24]	546	fclose(f);
	547	free(p);
	548	found = true;
	549	break;
[22]	550	}
[24]	551	free(p);
	552	}
	553	if(!found) {
	554	char* str = malloc(1);
	555	str[0] = 0;
	556	char** items = cm_scandir(path);
	557	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n");
	558	addstring(&str, "<html>\n");
	559	addstring(&str, " <head>\n");
	560	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
	561	addstring(&str, " <title>Index of %h</title>\n", req.path);
	562	addstring(&str, " </head>\n");
	563	addstring(&str, " <body>\n");
	564	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
	565	addstring(&str, " <hr>\n");
	566	addstring(&str, " <table border=\"0\">\n");
	567	addstring(&str, " <tr>\n");
	568	addstring(&str, " <th></th>\n");
	569	addstring(&str, " <th>Filename</th>\n");
[28]	570	addstring(&str, " <th>MIME</th>\n");
	571	addstring(&str, " <th>Size</th>\n");
[24]	572	addstring(&str, " </tr>\n");
[33]	573	int readme = -1;
	574	char** readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
	575	int readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
[24]	576	if(items != NULL) {
[29]	577	int phase = 0;
	578	doit:
[24]	579	for(i = 0; items[i] != NULL; i++) {
[33]	580	int j;
[28]	581	char* fpth = cm_strcat3(path, "/", items[i]);
	582	struct stat s;
	583	char size[512];
	584	size[0] = 0;
	585	stat(fpth, &s);
[29]	586	if(phase == 0 && !S_ISDIR(s.st_mode)) {
	587	free(fpth);
	588	continue;
	589	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
	590	free(fpth);
	591	continue;
	592	}
[33]	593	if(readme == -1) {
	594	for(j = 0; j < readme_count; j++) {
	595	if(strcmp(items[i], readmes[j]) == 0) {
	596	readme = j;
	597	break;
	598	}
	599	}
	600	if(readme != -1) {
	601	free(fpth);
	602	continue;
	603	}
	604	}
[29]	605	if(s.st_size < 1024ULL) {
[31]	606	sprintf(size, "%d", (int)s.st_size);
[29]	607	} else if(s.st_size < 1024ULL * 1024) {
	608	sprintf(size, "%.1fK", (double)s.st_size / 1024);
	609	} else if(s.st_size < 1024ULL * 1024 * 1024) {
	610	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
	611	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024) {
	612	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
	613	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024 * 1024) {
	614	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
[28]	615	}
	616
	617	free(fpth);
	618
[24]	619	char* ext = NULL;
	620	for(j = strlen(items[i]) - 1; j >= 0; j--) {
	621	if(items[i][j] == '.') {
	622	ext = cm_strdup(items[i] + j);
	623	break;
	624	} else if(items[i][j] == '/') {
	625	break;
	626	}
	627	}
[28]	628	char* showmime = "";
[24]	629	char* mime = tw_get_mime(ext, vhost_entry);
	630	if(strcmp(items[i], "../") == 0) {
	631	mime = "misc/parent";
[29]	632	size[0] = 0;
[24]	633	} else if(items[i][strlen(items[i]) - 1] == '/') {
	634	mime = "misc/dir";
[29]	635	size[0] = 0;
	636	} else {
[28]	637	showmime = mime;
[24]	638	}
	639	char* icon = tw_get_icon(mime, vhost_entry);
	640	if(ext != NULL) free(ext);
	641	char* itm = cm_strdup(items[i]);
	642	if(strlen(itm) >= 32) {
	643	if(itm[strlen(itm) - 1] == '/') {
	644	itm[31] = 0;
	645	itm[30] = '/';
	646	itm[29] = '.';
	647	itm[28] = '.';
	648	itm[27] = '.';
	649	} else {
	650	itm[31] = 0;
	651	itm[30] = '.';
	652	itm[29] = '.';
	653	itm[28] = '.';
	654	}
	655	}
	656	addstring(&str, "<tr>\n");
	657	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
	658	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
[60]	659	addstring(&str, " <td><code> %h </code></td>\n", showmime);
	660	addstring(&str, " <td><code> %s </code></td>\n", size);
[24]	661	addstring(&str, "</tr>\n");
	662	free(itm);
[22]	663	}
[29]	664	phase++;
	665	if(phase != 2) goto doit;
	666	for(i = 0; items[i] != NULL; i++) free(items[i]);
	667	free(items);
[22]	668	}
[24]	669	addstring(&str, " </table>\n");
[33]	670	if(readme != -1) {
	671	addstring(&str, "<hr>\n");
	672	char* fpth = cm_strcat3(path, "/", readmes[readme]);
	673	struct stat s;
	674	stat(fpth, &s);
	675	FILE* fr = fopen(fpth, "r");
	676	if(fr != NULL) {
	677	char* rmbuf = malloc(s.st_size + 1);
	678	rmbuf[s.st_size] = 0;
	679	fread(rmbuf, s.st_size, 1, fr);
	680	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
	681	fclose(fr);
[70]	682	free(rmbuf);
[33]	683	}
[66]	684	free(fpth);
[33]	685	}
[24]	686	addstring(&str, " <hr>\n");
	687	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
	688	addstring(&str, " </body>\n");
	689	addstring(&str, "</html>\n");
[32]	690	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
[24]	691	free(str);
[21]	692	}
	693	}
[22]	694	} else {
[21]	695	char* ext = NULL;
[22]	696	for(i = strlen(req.path) - 1; i >= 0; i--) {
	697	if(req.path[i] == '.') {
[21]	698	ext = cm_strdup(req.path + i);
	699	break;
[24]	700	} else if(req.path[i] == '/') {
	701	break;
[21]	702	}
	703	}
[22]	704	char* mime = tw_get_mime(ext, vhost_entry);
[21]	705	if(ext != NULL) free(ext);
	706	FILE* f = fopen(path, "rb");
[32]	707	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
[21]	708	fclose(f);
	709	}
[22]	710	} else {
[21]	711	tw_http_error(s, sock, 404, name, port);
	712	}
	713	free(path);
[20]	714	}
[21]	715	free(vhost);
	716	free(host);
[22]	717	} else if(ret == -1) {
[18]	718	} else {
	719	tw_http_error(s, sock, 400, name, port);
[17]	720	}
[70]	721	tw_free_request(&req);
[12]	722	cleanup:
[43]	723	#ifndef NO_SSL
[16]	724	if(sslworks) {
[15]	725	SSL_shutdown(s);
	726	}
	727	SSL_free(s);
[46]	728	#endif
[11]	729	close_socket(sock);
	730	#ifdef __MINGW32__
	731	_endthreadex(0);
	732	#endif
[43]	733	;
[11]	734	}
	735
[62]	736	#ifdef SERVICE
	737	extern SERVICE_STATUS status;
	738	extern SERVICE_STATUS_HANDLE status_handle;
	739	#endif
	740
[65]	741	#ifdef __MINGW32__
	742	struct thread_entry {
	743	HANDLE handle;
	744	bool used;
	745	};
	746	#endif
	747
[11]	748	void tw_server_loop(void) {
[9]	749	struct timeval tv;
[68]	750	int i;
[65]	751	#ifdef __MINGW32__
	752	struct thread_entry threads[2048];
[70]	753	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
[65]	754	threads[i].used = false;
	755	}
	756	#endif
[11]	757	while(1) {
[10]	758	FD_ZERO(&fdset);
[11]	759	for(i = 0; i < sockcount; i++) {
[10]	760	FD_SET(sockets[i], &fdset);
	761	}
[9]	762	tv.tv_sec = 1;
	763	tv.tv_usec = 0;
[10]	764	int ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
[11]	765	if(ret == -1) {
[9]	766	break;
[70]	767	} else if(ret == 0) {
[67]	768	#ifdef __MINGW32__
[70]	769	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
	770	if(threads[i].used) {
[65]	771	DWORD ex;
	772	GetExitCodeThread(threads[i].handle, &ex);
[70]	773	if(ex != STILL_ACTIVE) {
[65]	774	CloseHandle(threads[i].handle);
	775	threads[i].used = false;
	776	}
	777	}
	778	}
[67]	779	#endif
[62]	780	#ifdef SERVICE
[70]	781	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
[62]	782	break;
	783	}
	784	#endif
[11]	785	} else if(ret > 0) {
[9]	786	/* connection */
	787	int i;
[11]	788	for(i = 0; i < sockcount; i++) {
	789	if(FD_ISSET(sockets[i], &fdset)) {
[9]	790	SOCKADDR claddr;
	791	int clen = sizeof(claddr);
	792	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
[12]	793	cm_log("Server", "New connection accepted");
[11]	794	#ifdef __MINGW32__
	795	struct pass_entry* e = malloc(sizeof(*e));
	796	e->sock = sock;
	797	e->ssl = config.ports[i] & (1ULL << 32);
[12]	798	e->port = config.ports[i];
[21]	799	e->addr = claddr;
[65]	800	int j;
[70]	801	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	802	if(threads[j].used) {
[65]	803	DWORD ex;
	804	GetExitCodeThread(threads[j].handle, &ex);
[70]	805	if(ex != STILL_ACTIVE) {
[65]	806	CloseHandle(threads[j].handle);
	807	threads[j].used = false;
	808	}
	809	}
	810	}
[70]	811	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	812	if(!threads[j].used) {
[65]	813	threads[j].handle = (HANDLE)_beginthreadex(NULL, 0, tw_server_pass, e, 0, NULL);
	814	threads[j].used = true;
	815	break;
	816	}
	817	}
[11]	818	#else
	819	pid_t pid = fork();
	820	if(pid == 0) {
[21]	821	tw_server_pass(sock, config.ports[i] & (1ULL << 32), config.ports[i], claddr);
[11]	822	_exit(0);
	823	} else {
	824	close_socket(sock);
	825	}
	826	#endif
[9]	827	}
	828	}
	829	}
	830	}
	831	}

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source: Main/trunk/Server/server.c@ 73

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