server.c@ 65

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

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source: Main/trunk/Server/server.c@ 65

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