server.c@ 84

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Last change on this file since 84 was 84, checked in by Nishi, on Sep 19, 2024 at 9:50:05 PM
add error reporting
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File size: 22.2 KB

Rev	Line
[8]	1	/* $Id: server.c 84 2024-09-19 12:50:05Z 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>
[84]	24	#include <errno.h>
[21]	25	#include <sys/stat.h>
[32]	26	#include <time.h>
[8]	27
[18]	28	#include <cm_string.h>
[8]	29	#include <cm_log.h>
[21]	30	#include <cm_dir.h>
[8]	31
	32	#ifdef __MINGW32__
	33	#include <winsock2.h>
[11]	34	#include <process.h>
[62]	35	#include <windows.h>
[32]	36
	37	#include "strptime.h"
[8]	38	#else
	39	#include <sys/select.h>
	40	#include <sys/socket.h>
	41	#include <arpa/inet.h>
	42	#include <netinet/in.h>
	43	#include <netinet/tcp.h>
	44	#endif
	45
	46	extern struct tw_config config;
[18]	47	extern char tw_server[];
[8]	48
	49	fd_set fdset;
	50	int sockcount = 0;
	51
[9]	52	SOCKADDR addresses[MAX_PORTS];
	53	int sockets[MAX_PORTS];
[8]	54
[70]	55	#ifdef __MINGW32__
	56	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"};
	57	#endif
	58
[23]	59	/* https://qiita.com/gyu-don/items/5a640c6d2252a860c8cd */
	60	int tw_wildcard_match(const char* wildcard, const char* target) {
	61	const char pw = wildcard, pt = target;
	62
	63	while(1) {
	64	if(*pt == 0) {
	65	while(pw == '') pw++;
	66	return *pw == 0;
	67	} else if(*pw == 0) {
	68	return 0;
	69	} else if(pw == '') {
	70	return *(pw + 1) == 0 \|\| tw_wildcard_match(pw, pt + 1) \|\| tw_wildcard_match(pw + 1, pt);
	71	} else if(pw == '?' \|\| (pw == *pt)) {
	72	pw++;
	73	pt++;
	74	continue;
	75	} else {
	76	return 0;
	77	}
	78	}
	79	}
	80
[8]	81	void close_socket(int sock) {
	82	#ifdef __MINGW32__
	83	closesocket(sock);
	84	#else
	85	close(sock);
	86	#endif
	87	}
	88
	89	int tw_server_init(void) {
	90	int i;
	91	#ifdef __MINGW32__
	92	WSADATA wsa;
	93	WSAStartup(MAKEWORD(2, 0), &wsa);
	94	#endif
	95	for(i = 0; config.ports[i] != -1; i++)
	96	;
	97	sockcount = i;
	98	for(i = 0; config.ports[i] != -1; i++) {
	99	#ifdef NO_IPV6
	100	int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
	101	#else
	102	int sock = socket(AF_INET6, SOCK_STREAM, IPPROTO_TCP);
	103	#endif
	104	#ifdef __MINGW32__
	105	if(sock == INVALID_SOCKET)
	106	#else
	107	if(sock < 0)
	108	#endif
	109	{
	110	cm_log("Server", "Socket creation failure");
	111	return 1;
	112	}
	113	int yes = 1;
	114	if(setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void*)&yes, sizeof(yes)) < 0) {
	115	close_socket(sock);
	116	cm_log("Server", "setsockopt failure (reuseaddr)");
	117	return 1;
	118	}
	119	if(setsockopt(sock, IPPROTO_TCP, TCP_NODELAY, (void*)&yes, sizeof(yes)) < 0) {
	120	close_socket(sock);
	121	cm_log("Server", "setsockopt failure (nodelay)");
	122	return 1;
	123	}
	124	#ifndef NO_IPV6
	125	int no = 0;
	126	if(setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, (void*)&no, sizeof(no)) < 0) {
	127	close_socket(sock);
	128	cm_log("Server", "setsockopt failure (IPv6)");
	129	return 1;
	130	}
	131	#endif
	132	memset(&addresses[i], 0, sizeof(addresses[i]));
	133	#ifdef NO_IPV6
	134	addresses[i].sin_family = AF_INET;
	135	addresses[i].sin_addr.s_addr = INADDR_ANY;
	136	addresses[i].sin_port = htons(config.ports[i]);
	137	#else
	138	addresses[i].sin6_family = AF_INET6;
	139	addresses[i].sin6_addr = in6addr_any;
	140	addresses[i].sin6_port = htons(config.ports[i]);
	141	#endif
	142	if(bind(sock, (struct sockaddr*)&addresses[i], sizeof(addresses[i])) < 0) {
	143	close_socket(sock);
	144	cm_log("Server", "Bind failure");
	145	return 1;
	146	}
	147	if(listen(sock, 128) < 0) {
	148	close_socket(sock);
	149	cm_log("Server", "Listen failure");
	150	return 1;
	151	}
	152	sockets[i] = sock;
	153	}
	154	return 0;
	155	}
[9]	156
[16]	157	size_t tw_read(SSL* ssl, int s, void* data, size_t len) {
[43]	158	#ifndef NO_SSL
[16]	159	if(ssl == NULL) {
	160	return recv(s, data, len, 0);
	161	} else {
	162	return SSL_read(ssl, data, len);
	163	}
[43]	164	#else
	165	return recv(s, data, len, 0);
	166	#endif
[16]	167	}
	168
	169	size_t tw_write(SSL* ssl, int s, void* data, size_t len) {
[43]	170	#ifndef NO_SSL
[16]	171	if(ssl == NULL) {
	172	return send(s, data, len, 0);
	173	} else {
	174	return SSL_write(ssl, data, len);
	175	}
[43]	176	#else
	177	return send(s, data, len, 0);
	178	#endif
[16]	179	}
	180
[20]	181	#define ERROR_HTML \
[18]	182	"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n" \
	183	"<html>\n" \
	184	" <head>\n" \
[20]	185	" <title>%s</title>\n" \
[18]	186	" </head>\n" \
	187	" <body>\n" \
[20]	188	" <h1>%s</h1>\n" \
[18]	189	" <hr>\n" \
	190	" ", \
	191	address, \
	192	"\n" \
	193	" </body>\n" \
	194	"</html>\n"
	195
[32]	196	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]	197	char construct[512];
[32]	198	if(mtime != 0 && cmtime != 0 && mtime <= cmtime) {
	199	status = "304 Not Modified";
	200	type = NULL;
	201	size = 0;
	202	headers = NULL;
	203	f = NULL;
	204	doc = NULL;
	205	}
[18]	206	sprintf(construct, "%llu", (unsigned long long)size);
	207	tw_write(ssl, sock, "HTTP/1.1 ", 9);
	208	tw_write(ssl, sock, (char*)status, strlen(status));
	209	tw_write(ssl, sock, "\r\n", 2);
[24]	210	if(type != NULL) {
	211	tw_write(ssl, sock, "Content-Type: ", 7 + 5 + 2);
	212	tw_write(ssl, sock, (char*)type, strlen(type));
	213	tw_write(ssl, sock, "\r\n", 2);
	214	}
[18]	215	tw_write(ssl, sock, "Server: ", 6 + 2);
	216	tw_write(ssl, sock, tw_server, strlen(tw_server));
	217	tw_write(ssl, sock, "\r\n", 2);
[24]	218	if(size != 0) {
	219	tw_write(ssl, sock, "Content-Length: ", 7 + 7 + 2);
	220	tw_write(ssl, sock, construct, strlen(construct));
	221	tw_write(ssl, sock, "\r\n", 2);
[32]	222	if(mtime != 0) {
	223	struct tm* tm = gmtime(&mtime);
	224	char date[513];
	225	strftime(date, 512, "%a, %d %b %Y %H:%M:%S GMT", tm);
	226	tw_write(ssl, sock, "Last-Modified: ", 5 + 8 + 2);
	227	tw_write(ssl, sock, date, strlen(date));
	228	tw_write(ssl, sock, "\r\n", 2);
	229	}
[24]	230	}
	231	int i;
	232	if(headers != NULL) {
	233	for(i = 0; headers[i] != NULL; i += 2) {
	234	tw_write(ssl, sock, headers[i], strlen(headers[i]));
	235	tw_write(ssl, sock, ": ", 2);
	236	tw_write(ssl, sock, headers[i + 1], strlen(headers[i + 1]));
	237	tw_write(ssl, sock, "\r\n", 2);
	238	}
	239	}
[18]	240	tw_write(ssl, sock, "\r\n", 2);
[24]	241	if(doc == NULL && f == NULL) return;
[18]	242	size_t incr = 0;
	243	while(1) {
[22]	244	if(f != NULL) {
[21]	245	char buffer[128];
	246	fread(buffer, size < 128 ? size : 128, 1, f);
	247	tw_write(ssl, sock, buffer, size < 128 ? size : 128);
[22]	248	} else {
[21]	249	tw_write(ssl, sock, (unsigned char*)doc + incr, size < 128 ? size : 128);
	250	}
[18]	251	incr += 128;
[19]	252	if(size <= 128) break;
[18]	253	size -= 128;
	254	}
	255	}
	256
[32]	257	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]	258
[18]	259	const char* tw_http_status(int code) {
[20]	260	if(code == 200) {
	261	return "200 OK";
[24]	262	} else if(code == 308) {
	263	return "308 Permanent Redirect";
[20]	264	} else if(code == 400) {
[18]	265	return "400 Bad Request";
[20]	266	} else if(code == 401) {
	267	return "401 Unauthorized";
	268	} else if(code == 403) {
	269	return "403 Forbidden";
	270	} else if(code == 404) {
	271	return "404 Not Found";
[18]	272	} else {
	273	return "400 Bad Request";
	274	}
	275	}
	276
	277	char* tw_http_default_error(int code, char* name, int port) {
	278	char address[1024];
	279	sprintf(address, "<address>%s Server at %s Port %d</address>", tw_server, name, port);
[20]	280
	281	char* st = cm_strdup(tw_http_status(code));
	282	char* st2;
	283	int i;
	284	for(i = 0; st[i] != 0; i++) {
	285	if(st[i] == ' ') {
	286	st2 = cm_strdup(st + i + 1);
	287	break;
	288	}
[18]	289	}
[20]	290	char* buffer = malloc(4096);
	291	char* str = cm_strcat3(ERROR_HTML);
	292	sprintf(buffer, str, st, st2);
	293	free(str);
	294	free(st);
	295	return buffer;
[18]	296	}
	297
	298	void tw_http_error(SSL* ssl, int sock, int error, char* name, int port) {
	299	char* str = tw_http_default_error(error, name, port);
[32]	300	tw_process_page(ssl, sock, tw_http_status(error), "text/html", NULL, str, strlen(str), 0, 0);
[18]	301	free(str);
	302	}
	303
[20]	304	void addstring(char** str, const char* add, ...) {
	305	int i;
	306	char cbuf[2];
	307	cbuf[1] = 0;
	308	va_list va;
	309	va_start(va, add);
	310	for(i = 0; add[i] != 0; i++) {
	311	cbuf[0] = add[i];
	312	if(add[i] == '%') {
	313	i++;
	314	if(add[i] == 's') {
	315	char* tmp = *str;
	316	str = cm_strcat(tmp, va_arg(va, const char));
	317	free(tmp);
	318	} else if(add[i] == 'h') {
	319	char* h = cm_html_escape(va_arg(va, const char*));
	320	char* tmp = *str;
	321	*str = cm_strcat(tmp, h);
	322	free(tmp);
	323	free(h);
[21]	324	} else if(add[i] == 'l') {
	325	char* h = cm_url_escape(va_arg(va, const char*));
	326	char* tmp = *str;
	327	*str = cm_strcat(tmp, h);
	328	free(tmp);
	329	free(h);
[20]	330	} else if(add[i] == 'd') {
	331	int n = va_arg(va, int);
	332	char* h = malloc(512);
	333	sprintf(h, "%d", n);
	334	char* tmp = *str;
	335	*str = cm_strcat(tmp, h);
	336	free(tmp);
	337	free(h);
	338	} else if(add[i] == '%') {
	339	char* tmp = *str;
	340	*str = cm_strcat(tmp, "%");
	341	free(tmp);
	342	}
	343	} else {
	344	char* tmp = *str;
	345	*str = cm_strcat(tmp, cbuf);
	346	free(tmp);
	347	}
	348	}
[74]	349	va_end(va);
[20]	350	}
	351
[22]	352	char* tw_get_mime(const char* ext, struct tw_config_entry* vhost_entry) {
	353	char* mime = "application/octet-stream";
	354	if(ext == NULL) return mime;
	355	bool set = false;
	356	int i;
	357	for(i = 0; i < vhost_entry->mime_count; i++) {
[23]	358	if(strcmp(vhost_entry->mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(vhost_entry->mimes[i].ext, ext))) {
[22]	359	mime = vhost_entry->mimes[i].mime;
	360	set = true;
	361	}
	362	}
	363	if(!set) {
	364	for(i = 0; i < config.root.mime_count; i++) {
[23]	365	if(strcmp(config.root.mimes[i].ext, "all") == 0 \|\| (ext != NULL && tw_wildcard_match(config.root.mimes[i].ext, ext))) {
[22]	366	mime = config.root.mimes[i].mime;
	367	}
	368	}
	369	}
	370	return mime;
	371	}
	372
	373	char* tw_get_icon(const char* mime, struct tw_config_entry* vhost_entry) {
	374	char* icon = "";
	375	if(mime == NULL) return "";
	376	bool set = false;
	377	int i;
	378	for(i = 0; i < vhost_entry->icon_count; i++) {
[23]	379	if(strcmp(vhost_entry->icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(vhost_entry->icons[i].mime, mime))) {
[22]	380	icon = vhost_entry->icons[i].icon;
	381	set = true;
	382	}
	383	}
	384	if(!set) {
	385	for(i = 0; i < config.root.icon_count; i++) {
[23]	386	if(strcmp(config.root.icons[i].mime, "all") == 0 \|\| (mime != NULL && tw_wildcard_match(config.root.icons[i].mime, mime))) {
[22]	387	icon = config.root.icons[i].icon;
	388	}
	389	}
	390	}
	391	return icon;
	392	}
	393
[11]	394	#ifdef __MINGW32__
	395	struct pass_entry {
	396	int sock;
[12]	397	int port;
[11]	398	bool ssl;
[21]	399	SOCKADDR addr;
[11]	400	};
	401
	402	unsigned int WINAPI tw_server_pass(void* ptr) {
	403	int sock = ((struct pass_entry*)ptr)->sock;
	404	bool ssl = ((struct pass_entry*)ptr)->ssl;
[14]	405	int port = ((struct pass_entry*)ptr)->port;
[21]	406	SOCKADDR addr = ((struct pass_entry*)ptr)->addr;
[12]	407	free(ptr);
[11]	408	#else
[21]	409	void tw_server_pass(int sock, bool ssl, int port, SOCKADDR addr) {
[11]	410	#endif
[13]	411	char* name = config.hostname;
	412
[43]	413	#ifndef NO_SSL
[12]	414	SSL_CTX* ctx = NULL;
	415	SSL* s = NULL;
[15]	416	bool sslworks = false;
[12]	417	if(ssl) {
	418	ctx = tw_create_ssl_ctx(port);
	419	s = SSL_new(ctx);
	420	SSL_set_fd(s, sock);
	421	if(SSL_accept(s) <= 0) goto cleanup;
[15]	422	sslworks = true;
[12]	423	}
[43]	424	#else
	425	void* s = NULL;
	426	#endif
[16]	427	struct tw_http_request req;
[20]	428	struct tw_http_response res;
	429	struct tw_tool tools;
	430	res._processed = false;
	431	tw_init_tools(&tools);
[16]	432	int ret = tw_http_parse(s, sock, &req);
[17]	433	if(ret == 0) {
[21]	434	char* vhost = cm_strdup(config.hostname);
[20]	435	int i;
[32]	436	time_t cmtime = 0;
[70]	437	if(req.headers != NULL) {
[64]	438	for(i = 0; req.headers[i] != NULL; i += 2) {
	439	if(cm_strcaseequ(req.headers[i], "Host")) {
	440	free(vhost);
	441	vhost = cm_strdup(req.headers[i + 1]);
	442	} else if(cm_strcaseequ(req.headers[i], "If-Modified-Since")) {
	443	struct tm tm;
	444	strptime(req.headers[i + 1], "%a, %d %b %Y %H:%M:%S GMT", &tm);
[32]	445	#ifdef __MINGW32__
[64]	446	time_t t = 0;
	447	struct tm* btm = localtime(&t);
	448	cmtime = mktime(&tm);
	449	cmtime -= (btm->tm_hour * 60 + btm->tm_min) * 60;
[32]	450	#else
[64]	451	cmtime = timegm(&tm);
[32]	452	#endif
[64]	453	}
[21]	454	}
	455	}
	456	cm_log("Server", "Host is %s", vhost);
	457	int port = s == NULL ? 80 : 443;
	458	char* host = cm_strdup(vhost);
[22]	459	for(i = 0; vhost[i] != 0; i++) {
	460	if(vhost[i] == ':') {
[21]	461	host[i] = 0;
	462	port = atoi(host + i + 1);
	463	break;
	464	}
	465	}
	466	cm_log("Server", "Hostname is `%s', port is `%d'", host, port);
	467	struct tw_config_entry* vhost_entry = tw_vhost_match(host, port);
[20]	468	for(i = 0; i < config.module_count; i++) {
	469	tw_mod_request_t mod_req = (tw_mod_request_t)tw_module_symbol(config.modules[i], "mod_request");
	470	if(mod_req != NULL) {
	471	int ret = mod_req(&tools, &req, &res);
	472	int co = ret & 0xff;
	473	if(co == _TW_MODULE_PASS) continue;
	474	if(co == _TW_MODULE_STOP) {
	475	res._processed = true;
	476	break;
	477	}
	478	if(co == _TW_MODULE_ERROR) {
	479	tw_http_error(s, sock, (ret & 0xffff00) >> 8, name, port);
	480	break;
	481	}
	482	}
	483	}
	484	if(!res._processed) {
[21]	485	cm_log("Server", "Document root is %s", vhost_entry->root == NULL ? "not set" : vhost_entry->root);
	486	char* path = cm_strcat(vhost_entry->root == NULL ? "" : vhost_entry->root, req.path);
	487	cm_log("Server", "Filesystem path is %s", path);
[70]	488	bool rej = false;
	489	#ifdef __MINGW32__
[71]	490	char* rpath = cm_strdup(path);
[72]	491	for(i = strlen(rpath) - 1; i >= 0; i--) {
[73]	492	if(rpath[i] == '/') {
	493	int j;
	494	for(j = i + 1; rpath[j] != 0; j++) {
	495	if(rpath[j] == ':' \|\| rpath[j] == '.') {
	496	rpath[j] = 0;
	497	break;
	498	}
	499	}
[71]	500	break;
	501	}
	502	}
[70]	503	for(i = 0; i < sizeof(reserved_names) / sizeof(reserved_names[0]); i++) {
	504	char* n = cm_strcat("/", reserved_names[i]);
[71]	505	if(cm_nocase_endswith(rpath, n)) {
[70]	506	tw_http_error(s, sock, 403, name, port);
	507	free(n);
	508	rej = true;
	509	cm_log("Server", "XP Patch ; rejecting access to device");
	510	break;
	511	}
	512	free(n);
	513	}
[71]	514	free(rpath);
[70]	515	#endif
[21]	516	struct stat st;
[70]	517	if(!rej && stat(path, &st) == 0) {
[22]	518	if(!tw_permission_allowed(path, addr, req, vhost_entry)) {
[21]	519	tw_http_error(s, sock, 403, name, port);
[22]	520	} else if(S_ISDIR(st.st_mode)) {
[24]	521	if(req.path[strlen(req.path) - 1] != '/') {
[61]	522	cm_log("Server", "Accessing directory without the slash at the end");
[24]	523	char* headers[3] = {"Location", cm_strcat(req.path, "/"), NULL};
[32]	524	_tw_process_page(s, sock, tw_http_status(308), NULL, NULL, NULL, 0, headers, 0, 0);
[24]	525	free(headers[1]);
	526	} else {
	527	char** indexes = vhost_entry->index_count == 0 ? config.root.indexes : vhost_entry->indexes;
	528	int index_count = vhost_entry->index_count == 0 ? config.root.index_count : vhost_entry->index_count;
	529	bool found = false;
	530	for(i = 0; i < index_count; i++) {
	531	char* p = cm_strcat3(path, "/", indexes[i]);
	532	FILE* f = fopen(p, "rb");
	533	if(f != NULL) {
	534	char* ext = NULL;
	535	int j;
	536	for(j = strlen(p) - 1; j >= 0; j--) {
	537	if(p[j] == '.') {
	538	ext = cm_strdup(p + j);
	539	break;
	540	} else if(p[j] == '/') {
	541	break;
	542	}
[22]	543	}
[24]	544	struct stat st;
	545	stat(p, &st);
	546	char* mime = tw_get_mime(ext, vhost_entry);
[32]	547	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, 0, 0);
[24]	548	fclose(f);
[74]	549	if(ext != NULL) free(ext);
[24]	550	free(p);
	551	found = true;
	552	break;
[22]	553	}
[24]	554	free(p);
	555	}
	556	if(!found) {
	557	char* str = malloc(1);
	558	str[0] = 0;
	559	char** items = cm_scandir(path);
	560	addstring(&str, "<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">\n");
	561	addstring(&str, "<html>\n");
	562	addstring(&str, " <head>\n");
	563	addstring(&str, " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n");
	564	addstring(&str, " <title>Index of %h</title>\n", req.path);
	565	addstring(&str, " </head>\n");
	566	addstring(&str, " <body>\n");
	567	addstring(&str, " <h1>Index of %h</h1>\n", req.path);
	568	addstring(&str, " <hr>\n");
	569	addstring(&str, " <table border=\"0\">\n");
	570	addstring(&str, " <tr>\n");
	571	addstring(&str, " <th></th>\n");
	572	addstring(&str, " <th>Filename</th>\n");
[28]	573	addstring(&str, " <th>MIME</th>\n");
	574	addstring(&str, " <th>Size</th>\n");
[24]	575	addstring(&str, " </tr>\n");
[33]	576	int readme = -1;
	577	char** readmes = vhost_entry->readme_count == 0 ? config.root.readmes : vhost_entry->readmes;
	578	int readme_count = vhost_entry->readme_count == 0 ? config.root.readme_count : vhost_entry->readme_count;
[24]	579	if(items != NULL) {
[29]	580	int phase = 0;
	581	doit:
[24]	582	for(i = 0; items[i] != NULL; i++) {
[33]	583	int j;
[28]	584	char* fpth = cm_strcat3(path, "/", items[i]);
	585	struct stat s;
	586	char size[512];
	587	size[0] = 0;
	588	stat(fpth, &s);
[29]	589	if(phase == 0 && !S_ISDIR(s.st_mode)) {
	590	free(fpth);
	591	continue;
	592	} else if(phase == 1 && S_ISDIR(s.st_mode)) {
	593	free(fpth);
	594	continue;
	595	}
[33]	596	if(readme == -1) {
	597	for(j = 0; j < readme_count; j++) {
	598	if(strcmp(items[i], readmes[j]) == 0) {
	599	readme = j;
	600	break;
	601	}
	602	}
	603	if(readme != -1) {
	604	free(fpth);
	605	continue;
	606	}
	607	}
[29]	608	if(s.st_size < 1024ULL) {
[31]	609	sprintf(size, "%d", (int)s.st_size);
[29]	610	} else if(s.st_size < 1024ULL * 1024) {
	611	sprintf(size, "%.1fK", (double)s.st_size / 1024);
	612	} else if(s.st_size < 1024ULL * 1024 * 1024) {
	613	sprintf(size, "%.1fM", (double)s.st_size / 1024 / 1024);
	614	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024) {
	615	sprintf(size, "%.1fG", (double)s.st_size / 1024 / 1024 / 1024);
	616	} else if(s.st_size < 1024ULL * 1024 * 1024 * 1024 * 1024) {
	617	sprintf(size, "%.1fT", (double)s.st_size / 1024 / 1024 / 1024 / 1024);
[28]	618	}
	619
	620	free(fpth);
	621
[24]	622	char* ext = NULL;
	623	for(j = strlen(items[i]) - 1; j >= 0; j--) {
	624	if(items[i][j] == '.') {
	625	ext = cm_strdup(items[i] + j);
	626	break;
	627	} else if(items[i][j] == '/') {
	628	break;
	629	}
	630	}
[28]	631	char* showmime = "";
[24]	632	char* mime = tw_get_mime(ext, vhost_entry);
	633	if(strcmp(items[i], "../") == 0) {
	634	mime = "misc/parent";
[29]	635	size[0] = 0;
[24]	636	} else if(items[i][strlen(items[i]) - 1] == '/') {
	637	mime = "misc/dir";
[29]	638	size[0] = 0;
	639	} else {
[28]	640	showmime = mime;
[24]	641	}
	642	char* icon = tw_get_icon(mime, vhost_entry);
	643	if(ext != NULL) free(ext);
	644	char* itm = cm_strdup(items[i]);
	645	if(strlen(itm) >= 32) {
	646	if(itm[strlen(itm) - 1] == '/') {
	647	itm[31] = 0;
	648	itm[30] = '/';
	649	itm[29] = '.';
	650	itm[28] = '.';
	651	itm[27] = '.';
	652	} else {
	653	itm[31] = 0;
	654	itm[30] = '.';
	655	itm[29] = '.';
	656	itm[28] = '.';
	657	}
	658	}
	659	addstring(&str, "<tr>\n");
	660	addstring(&str, " <td><img src=\"%s\" alt=\"icon\"></td>\n", icon);
	661	addstring(&str, " <td><a href=\"%l\"><code>%h</code></a></td>\n", items[i], itm);
[60]	662	addstring(&str, " <td><code> %h </code></td>\n", showmime);
	663	addstring(&str, " <td><code> %s </code></td>\n", size);
[24]	664	addstring(&str, "</tr>\n");
	665	free(itm);
[22]	666	}
[29]	667	phase++;
	668	if(phase != 2) goto doit;
	669	for(i = 0; items[i] != NULL; i++) free(items[i]);
	670	free(items);
[22]	671	}
[24]	672	addstring(&str, " </table>\n");
[33]	673	if(readme != -1) {
	674	addstring(&str, "<hr>\n");
	675	char* fpth = cm_strcat3(path, "/", readmes[readme]);
	676	struct stat s;
	677	stat(fpth, &s);
	678	FILE* fr = fopen(fpth, "r");
	679	if(fr != NULL) {
	680	char* rmbuf = malloc(s.st_size + 1);
	681	rmbuf[s.st_size] = 0;
	682	fread(rmbuf, s.st_size, 1, fr);
	683	addstring(&str, "<pre><code>%h</code></pre>\n", rmbuf);
	684	fclose(fr);
[70]	685	free(rmbuf);
[33]	686	}
[66]	687	free(fpth);
[33]	688	}
[24]	689	addstring(&str, " <hr>\n");
	690	addstring(&str, " <address>%s Server at %s Port %d</address>\n", tw_server, name, port);
	691	addstring(&str, " </body>\n");
	692	addstring(&str, "</html>\n");
[32]	693	tw_process_page(s, sock, tw_http_status(200), "text/html", NULL, str, strlen(str), 0, 0);
[24]	694	free(str);
[21]	695	}
	696	}
[22]	697	} else {
[21]	698	char* ext = NULL;
[22]	699	for(i = strlen(req.path) - 1; i >= 0; i--) {
	700	if(req.path[i] == '.') {
[21]	701	ext = cm_strdup(req.path + i);
	702	break;
[24]	703	} else if(req.path[i] == '/') {
	704	break;
[21]	705	}
	706	}
[22]	707	char* mime = tw_get_mime(ext, vhost_entry);
[21]	708	if(ext != NULL) free(ext);
	709	FILE* f = fopen(path, "rb");
[32]	710	tw_process_page(s, sock, tw_http_status(200), mime, f, NULL, st.st_size, st.st_mtime, cmtime);
[21]	711	fclose(f);
	712	}
[22]	713	} else {
[21]	714	tw_http_error(s, sock, 404, name, port);
	715	}
	716	free(path);
[20]	717	}
[21]	718	free(vhost);
	719	free(host);
[22]	720	} else if(ret == -1) {
[18]	721	} else {
	722	tw_http_error(s, sock, 400, name, port);
[17]	723	}
[70]	724	tw_free_request(&req);
[12]	725	cleanup:
[43]	726	#ifndef NO_SSL
[16]	727	if(sslworks) {
[15]	728	SSL_shutdown(s);
	729	}
	730	SSL_free(s);
[46]	731	#endif
[11]	732	close_socket(sock);
	733	#ifdef __MINGW32__
	734	_endthreadex(0);
	735	#endif
[43]	736	;
[11]	737	}
	738
[62]	739	#ifdef SERVICE
	740	extern SERVICE_STATUS status;
	741	extern SERVICE_STATUS_HANDLE status_handle;
	742	#endif
	743
[65]	744	#ifdef __MINGW32__
	745	struct thread_entry {
	746	HANDLE handle;
	747	bool used;
	748	};
	749	#endif
	750
[11]	751	void tw_server_loop(void) {
[9]	752	struct timeval tv;
[68]	753	int i;
[65]	754	#ifdef __MINGW32__
	755	struct thread_entry threads[2048];
[70]	756	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
[65]	757	threads[i].used = false;
	758	}
	759	#endif
[11]	760	while(1) {
[10]	761	FD_ZERO(&fdset);
[11]	762	for(i = 0; i < sockcount; i++) {
[10]	763	FD_SET(sockets[i], &fdset);
	764	}
[9]	765	tv.tv_sec = 1;
	766	tv.tv_usec = 0;
[10]	767	int ret = select(FD_SETSIZE, &fdset, NULL, NULL, &tv);
[11]	768	if(ret == -1) {
[84]	769	#ifndef __MINGW32__
	770	cm_log("Server", "Select failure: %s", strerror(errno));
	771	#endif
[9]	772	break;
[70]	773	} else if(ret == 0) {
[67]	774	#ifdef __MINGW32__
[70]	775	for(i = 0; i < sizeof(threads) / sizeof(threads[0]); i++) {
	776	if(threads[i].used) {
[65]	777	DWORD ex;
	778	GetExitCodeThread(threads[i].handle, &ex);
[70]	779	if(ex != STILL_ACTIVE) {
[65]	780	CloseHandle(threads[i].handle);
	781	threads[i].used = false;
	782	}
	783	}
	784	}
[67]	785	#endif
[62]	786	#ifdef SERVICE
[70]	787	if(status.dwCurrentState == SERVICE_STOP_PENDING) {
[62]	788	break;
	789	}
	790	#endif
[11]	791	} else if(ret > 0) {
[9]	792	/* connection */
	793	int i;
[11]	794	for(i = 0; i < sockcount; i++) {
	795	if(FD_ISSET(sockets[i], &fdset)) {
[9]	796	SOCKADDR claddr;
	797	int clen = sizeof(claddr);
	798	int sock = accept(sockets[i], (struct sockaddr*)&claddr, &clen);
[12]	799	cm_log("Server", "New connection accepted");
[11]	800	#ifdef __MINGW32__
	801	struct pass_entry* e = malloc(sizeof(*e));
	802	e->sock = sock;
	803	e->ssl = config.ports[i] & (1ULL << 32);
[12]	804	e->port = config.ports[i];
[21]	805	e->addr = claddr;
[65]	806	int j;
[70]	807	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	808	if(threads[j].used) {
[65]	809	DWORD ex;
	810	GetExitCodeThread(threads[j].handle, &ex);
[70]	811	if(ex != STILL_ACTIVE) {
[65]	812	CloseHandle(threads[j].handle);
	813	threads[j].used = false;
	814	}
	815	}
	816	}
[70]	817	for(j = 0; j < sizeof(threads) / sizeof(threads[0]); j++) {
	818	if(!threads[j].used) {
[65]	819	threads[j].handle = (HANDLE)_beginthreadex(NULL, 0, tw_server_pass, e, 0, NULL);
	820	threads[j].used = true;
	821	break;
	822	}
	823	}
[11]	824	#else
	825	pid_t pid = fork();
	826	if(pid == 0) {
[21]	827	tw_server_pass(sock, config.ports[i] & (1ULL << 32), config.ports[i], claddr);
[11]	828	_exit(0);
	829	} else {
	830	close_socket(sock);
	831	}
	832	#endif
[9]	833	}
	834	}
	835	}
	836	}
	837	}

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source: Main/trunk/Server/server.c@ 84

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