server.c@ 48

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Last change on this file since 48 was 46, checked in by Nishi, on Sep 18, 2024 at 6:58:45 PM
fixing close_socket
Property svn:keywords set to `Id`
File size: 19.9 KB

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

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source: Main/trunk/Server/server.c@ 48

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