dwm.png

/* This file is dedicated to the public domain.
 *
 * Gemini protocol adapter for Chawan.
 * Intended to be used through local CGI (by redirection in scheme-map).
 *
 * (FWIW, it should work with normal CGI or w3m's local CGI too. However,
 * it does not rewrite URLs, so you would have to figure out something for
 * that, e.g. by setting the base href or rewriting URLs in another layer.)
 *
 * Usage: gmifetch [URL]
 *
 * Environment variables:
 * - QUERY_STRING is used if no URL arguments are passed.
 * - GMIFETCH_KNOWN_HOSTS is used for setting the known_hosts file. If not set,
 *   we use $XDG_CONFIG_HOME/gmifetch/known_hosts, where $XDG_CONFIG_HOME falls
 *   back to $HOME/.config/gmifetch if not set.
 */

#include <ctype.h>
#include <errno.h>
#include <openssl/err.h>
#include <openssl/pem.h>
#include <openssl/ssl.h>
#include <pwd.h>
#include <sys/stat.h>
#include <unistd.h>

static SSL_CTX* ssl_ctx;
static SSL *ssl;
static BIO *conn;

/* CGI responses */
#define INPUT_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>" \
	"<title>Input required</title>" \
	"<base href='%s'>" \
	"<h1>Input required</h1>" \
	"<p>" \
	"%s" \
	"<p>" \
	"<form method=POST><input type='%s' name='input'></form>"

#define SUCCESS_RESPONSE "Content-Type: %s\r\n" \
	"\r\n"

#define REDIRECT_RESPONSE "Status: 30%c\r\n" \
	"Location: %s\r\n" \
	"\r\n"

#define TEMPFAIL_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>" \
	"<title>Temporary failure</title>" \
	"<h1>%s</h1>" \
	"<p>" \
	"%s"

#define PERMFAIL_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>" \
	"<title>Permanent failure</title>" \
	"<h1>%s</h1>" \
	"<p>" \
	"%s"

#define CERTFAIL_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>" \
	"<title>Certificate failure</title>" \
	"<h1>%s</h1>" \
	"<p>" \
	"%s"

#define INVALID_CERT_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>\n" \
	"<title>Invalid certificate</title>\n" \
	"<h1>Invalid certificate</h1>\n" \
	"<p>\n" \
	"The certificate received from the server does not match the\n" \
	"stored certificate (expected %s, but got %s). Somebody may be\n" \
	"tampering with your connection.\n" \
	"<p>\n" \
	"If you are sure that this is not a man-in-the-middle attack,\n" \
	"please remove this host from %s.\n"

#define UNKNOWN_CERT_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>" \
	"<title>Unknown certificate</title>" \
	"<h1>Unknown certificate</h1>" \
	"<p>\n" \
	"The hostname of the server you are visiting could not be found\n" \
	"in your list of known hosts (%s).\n" \
	"<p>\n" \
	"The server has sent us a certificate with the following\n" \
	"fingerprint:\n" \
	"<pre>%s</pre>\n" \
	"<p>Trust it?\n" \
	"<form method=POST>" \
	"<input type=submit name=trust_cert value=always>\n" \
	"<input type=submit name=trust_cert value=once>" \
	"<input type=hidden name=entry value='%s sha256 %s %lu'>" \
	"</form>"

#define UPDATED_CERT_RESPONSE "Content-Type: text/html\r\n" \
	"\r\n" \
	"<!DOCTYPE html>\n" \
	"<title>Certificate date changed</title>\n" \
	"<h1>Certificate date changed</h1>\n" \
	"<p>\n" \
	"The received certificate's date did not match the date in your\n" \
	"list of known hosts (%s).\n" \
	"<p>\n" \
	"The new expiration date is: %s.\n" \
	"<p>\n" \
	"Update it?\n" \
	"<form method=POST>" \
	"<input type=submit name=trust_cert value=always>" \
	"<input type=submit name=trust_cert value=once>\n" \
	"<input type=hidden name=entry value='%s sha256 %s %lu'>" \
	"</form>\n"

#define PDIE(x) \
	do { \
		puts("Content-Type: text/plain\r\n"); \
		puts(x); \
		puts(strerror(errno)); \
		exit(1); \
	} while (0)

#define SDIE(x) \
	do { \
		puts("Content-Type: text/plain\r\n"); \
		puts(x); \
		ERR_print_errors_fp(stdout); \
		exit(1); \
	} while (0)

#define DIE(x) \
	do { \
		puts("Content-Type: text/plain\r\n\r\n" x); \
		exit(1); \
	} while (0)

#define BUFSIZE 1024

static void setup_ssl(void)
{
#define FLAGS (SSL_OP_NO_SSLv2 | SSL_OP_NO_SSLv3 | SSL_OP_NO_COMPRESSION | \
	SSL_OP_NO_TLSv1_1)

	SSL_library_init();
	SSL_load_error_strings();
	ssl_ctx = SSL_CTX_new(TLS_client_method());
	SSL_CTX_set_options(ssl_ctx, FLAGS);
	if (!(conn = BIO_new_ssl_connect(ssl_ctx)))
		SDIE("Error creating BIO");
#undef FLAGS
}

static void extract_hostname(const char *s, char **hostp, char **portp,
	char **pathp, char **endp, char *urlbuf)
{
	const char *p;
	size_t i, schlen;

	if (!(p = strstr(s, "gemini://")))
		DIE("Invalid URL: scheme delimiter not found");
	p += strlen("gemini://");
	schlen = p - s;
	if (schlen >= BUFSIZE)
		DIE("Scheme too long");
#define SCHEME "gemini://"
	schlen = strlen(SCHEME);
	strcpy(urlbuf, SCHEME);
	*hostp = &urlbuf[schlen];
	for (i = schlen; *p && *p != ':' && *p != '/' && i < BUFSIZE; ++p, ++i)
		urlbuf[i] = *p;
	if (i + 2 >= BUFSIZE) /* +2 for CRLF */
		DIE("Host too long");
	*portp = &urlbuf[i];
	if (*p != ':') {
		if (i + 5 >= BUFSIZE)
			DIE("Host too long");
		strcpy(&urlbuf[i], ":1965");
		i += 5;
	} else {
		for (; *p && *p != '/' && i < BUFSIZE; ++i, ++p)
			urlbuf[i] = *p;
	}
	*pathp = &urlbuf[i];
	if (i < BUFSIZE)
		urlbuf[i++] = '/';
	if (*p == '/')
		++p;
	for (; *p && i < BUFSIZE; ++i, ++p)
		urlbuf[i] = *p;
	if (i + 2 >= BUFSIZE) /* +2 for CRLF */
		DIE("Host too long");
	*endp = &urlbuf[i];
	urlbuf[i] = '\0';
}

int check_cert(const char *theirs, char *hostp, char **stored_digestp,
	time_t their_time, FILE *known_hosts)
{
	char *p, *q, *hashp, *timep;
	int found;
	time_t our_time;
	char linebuf[BUFSIZE + 1];

	rewind(known_hosts);
	found = 0;
	while (!found && fgets(linebuf, BUFSIZE, known_hosts)) {
		p = strstr(linebuf, " ");
		if (!p)
			DIE("Incorrectly formatted known_hosts file");
		*p = '\0';
		found = !strcmp(linebuf, hostp);
	}
	if (!found)
		return -1;
	hashp = p + 1;
	if (!(q = strstr(hashp, " ")))
		DIE("Incorrectly formatted known_hosts file");
	*q = '\0';
	if (strcmp(hashp, "sha256") && strcmp(hashp, "SHA256"))
		DIE("Unsupported digest format");
	*stored_digestp = q + 1;
	if (!(q = strstr(*stored_digestp, " "))) {
		timep = NULL;
		if ((q = strstr(*stored_digestp, "\n")))
			*q = '\0';
	} else {
		timep = q + 1;
		*q = '\0';
	}
	if (strcmp(theirs, *stored_digestp))
		return 0;
	if (!timep)
		return -2;
	our_time = (time_t)atol(timep);
	if (their_time != our_time)
		return -2;
	return 1;
}

static char HexTable[] = "0123456789ABCDEF";

void hex_encode(const unsigned char *inp, char *outbuf, int len)
{
	const unsigned char *p;
	char *q;

	for (p = inp, q = outbuf; p < &inp[len]; ++p) {
		if (p != inp)
			*q++ = ':';
		*q++ = HexTable[(*p >> 4) & 0xF];
		*q++ = HexTable[*p & 0xF];
	}
	*q++ = '\0';
}

static void hash_buf(const unsigned char *ibuf, int len, char *obuf2)
{
	unsigned int len2;
	EVP_MD_CTX* mdctx;
	unsigned char hashbuf[EVP_MAX_MD_SIZE];

	if (!(mdctx = EVP_MD_CTX_new()))
		SDIE("Failed to initialize MD_CTX");
	if (!EVP_DigestInit_ex(mdctx, EVP_sha256(), NULL))
		SDIE("Failed to initialize sha256");
	if (!EVP_DigestUpdate(mdctx, ibuf, len))
		SDIE("Failed to update digest");
	len2 = 0;
	if (!EVP_DigestFinal_ex(mdctx, hashbuf, &len2))
		SDIE("Failed to finalize digest");
	EVP_MD_CTX_free(mdctx);
	hex_encode(hashbuf, obuf2, len2);
}

/* 1: cert found & valid
 * 0: cert found & invalid
 * -1: cert not found
 * -2: cert found, but notAfter updated
 */
static int connect(char *hostp, char *portp, char *pathp, char *endp,
	char **stored_digestp, time_t *their_time, char *hashbuf2,
	FILE *known_hosts)
{
	X509 *cert;
	const EVP_PKEY *pkey;
#define PUBKEY_BUF_SIZE 8192
	unsigned char pubkey_buf[PUBKEY_BUF_SIZE + 1], *r;
	int len, res;
	const ASN1_TIME *notAfter;
	struct tm their_tm;

	*pathp = '\0';
	if (!BIO_set_conn_hostname(conn, hostp))
		SDIE("Error setting BIO hostname");
	*pathp = '/';
	BIO_get_ssl(conn, &ssl);
#define PREFERRED_CIPHERS "HIGH:!aNULL:!kRSA:!PSK:!SRP:!MD5:!RC4"
	if (!SSL_set_cipher_list(ssl, PREFERRED_CIPHERS))
		SDIE("Error failed to set cipher list");
	*portp = '\0';
	if (!SSL_set_tlsext_host_name(ssl, hostp))
		SDIE("Error failed to set tlsext host name");
	if (BIO_do_connect(conn) <= 0)
		SDIE("Failed to connect");
	if (!BIO_do_handshake(conn))
		SDIE("Failed handshake");
	if (!(cert = SSL_get_peer_certificate(ssl)))
		DIE("Failed to get certificate");
	if (!(pkey = X509_get0_pubkey(cert)))
		SDIE("Failed to decode public key");
	len = i2d_PUBKEY(pkey, NULL);
	if (len * 3 > PUBKEY_BUF_SIZE)
		DIE("Public key too long");
	r = pubkey_buf;
	if (i2d_PUBKEY(pkey, &r) != len)
		DIE("wat");
	hash_buf(pubkey_buf, len, hashbuf2);
	notAfter = X509_get0_notAfter(cert);
	if (!ASN1_TIME_to_tm(notAfter, &their_tm))
		DIE("Failed to parse time");
	if (X509_cmp_current_time(X509_get0_notBefore(cert)) >= 0)
		DIE("Wrong time");
	if (X509_cmp_current_time(notAfter) <= 0)
		DIE("Wrong time");
	*their_time = mktime(&their_tm);
	res = check_cert(hashbuf2, hostp, stored_digestp, *their_time,
		known_hosts);
	*portp = ':';
	X509_free(cert);
	strcpy(endp, "\r\n");
	return res;
#undef PUBKEY_BUF_SIZE
}

static void read_response(const char *urlbuf)
{
	int bytes, total;
	const char *tmp;
	char *q, status0, status1;
	char buffer[BUFSIZE + 1];

	/* Read response */
	total = 0;
	/* Status code */
	while (((bytes = BIO_read(conn, buffer, 3 - total)) > 0 ||
			BIO_should_retry(conn)) && total < 3)
		total += bytes;
	if (total < 3 || !isdigit(status0 = buffer[0]) ||
			!isdigit(status1 = buffer[1]) || buffer[2] != ' ')
		DIE("Invalid status code");
	/* Meta */
	#define METALEN (total - 3)
	while (((bytes = BIO_read(conn, &buffer[METALEN], 1024 - METALEN)) > 0 ||
			BIO_should_retry(conn)) && METALEN < BUFSIZE)
		total += bytes;
	q = strstr(buffer, "\r\n");
	if (!q)
		DIE("Invalid status line");
	*q = '\0';
	/* buffer is now META. */
	switch (status0) {
	case '1': /* input */
		/* META is the prompt. */
		printf(INPUT_RESPONSE, urlbuf, buffer, status1 == '1' ?
			"password" /* sensitive input */ :
			"search" /* input */);
		break;
	case '2': /* success */
		/* META is the content type. */
		printf(SUCCESS_RESPONSE, *buffer ?
			buffer :
			"text/gemini; charset=utf-8" /* fallback */);
		/* Body */
		/* flush any data remaining in buffer */
		total -= 5 + (q - buffer); /* code + space + meta + \r\n len */
		if (total > 0)
			fwrite(&q[2], 1, total, stdout);
		while ((bytes = BIO_read(conn, buffer, BUFSIZE)) > 0 ||
				BIO_should_retry(conn))
			fwrite(buffer, 1, bytes, stdout);
		break;
	case '3': /* redirect */
		/* META is the redirection URL. */
		printf(REDIRECT_RESPONSE, status1 == '0' ?
			'7' /* temporary */ :
			'1' /* permanent */, buffer);
		break;
	case '4': /* temporary failure */
		/* META is additional information. */
		/* TODO maybe set status code too? */
		switch (status1) {
		case '1':
			tmp = "Server unavailable";
			break;
		case '2':
			tmp = "CGI error";
			break;
		case '3':
			tmp = "Proxy error";
			break;
		case '4':
			tmp = "Slow down!";
			break;
		case '0':
		default: /* no additional information provided in the code */
			tmp = "Temporary failure";
			break;
		}
		printf(TEMPFAIL_RESPONSE, tmp, buffer);
		break;
	case '5': /* permanent failure */
		/* TODO maybe set status code too? */
		switch (status1) {
		case '1':
			tmp = "Not found";
			break;
		case '2':
			tmp = "Gone";
			break;
		case '3':
			tmp = "Proxy request refused";
			break;
		case '9':
			tmp = "Bad request";
			break;
		case '0':
		default: /* no additional information provided in the code */
			tmp = "Permanent failure";
			break;
		}
		printf(PERMFAIL_RESPONSE, tmp, buffer);
		break;
	case '6': /* permanent failure */
		/* TODO maybe set status code too? */
		switch (status1) {
		case '1':
			tmp = "Certificate not authorized";
			break;
		case '2':
			tmp = "Certificate not valid";
			break;
		case '0':
		default: /* no additional information provided in the code */
			tmp = "Certificate failure";
			break;
		}
		printf(CERTFAIL_RESPONSE, tmp, buffer);
	}
}

void decode_query(const char *input_url, char *output_buffer)
{
	const char *p;
	char *q, *endp, c;

	endp = &output_buffer[BUFSIZE];
	for (p = input_url, q = output_buffer; *p && q < endp; ++p, ++q) {
		if (*p != '%') {
			*q = *p;
		} else {
			if (!isxdigit(p[1] & 0xFF) || !isxdigit(p[2] & 0xFF))
				DIE("Invalid percent encoding");
			c = tolower(p[1] & 0xFF);
			*q = ('a' <= c && c <= 'z') ?
				c - 'a' + 10 :
				c - '0';
			c = tolower(p[2] & 0xFF);
			*q = (*q << 4) | (('a' <= c || c <= 'z') ?
				c - 'a' + 10 :
				c - '0');
			p += 2;
		}
	}
	if (q >= endp)
		DIE("Query too long");
	*q = '\0';
}


void read_post(const char *hostp, char *portp, char *pathp, const char *urlbuf,
	char *khsbuf, FILE *known_hosts)
{
	/* TODO move query strings here */
	size_t n;
	char *p, *q;
	FILE *known_hosts_tmp;
	long last_pos, len, total;
	size_t khslen;
	char inbuf[BUFSIZE + 1], buffer[BUFSIZE + 1];

	n = fread(inbuf, 1, BUFSIZE, stdin);
	inbuf[n] = '\0';
	if ((p = strstr(inbuf, "input="))) {
		decode_query(p + 6, buffer);
		if (!(q = strstr(pathp, "?"))) /* no query string */
			q = &pathp[strlen(pathp)];
		for (; *p && q < &urlbuf[BUFSIZE]; ++p, ++q)
			*q = *p;
		if (q >= &urlbuf[BUFSIZE])
			DIE("Query too long");
	} else if (!(p = strstr(inbuf, "trust_cert="))) {
		DIE("Invalid POST request: trust_cert missing");
	}
	p += sizeof("trust_cert=") - 1;
	if (!strncmp(p, "always", 6)) {
		/* move to file end */
		fseek(known_hosts, 0L, SEEK_END);
		last_pos = ftell(known_hosts);
		if (!(p = strstr(p, "entry=")))
			DIE("Invalid POST request: missing entry");
		p += sizeof("entry=") - 1;
		decode_query(p, buffer);
		/* replace plus signs */
		p = buffer;
		while ((p = strstr(p, "+")))
			*p = ' ';
		fwrite(buffer, 1, strlen(buffer), known_hosts);
		fwrite("\n", 1, 1, known_hosts);
		khslen = strlen(khsbuf);
		khsbuf[khslen] = '~';
		khsbuf[khslen + 1] = '\0';
		if (!(known_hosts_tmp = fopen(khsbuf, "w+")))
			PDIE("Error opening temporary hosts file");
		rewind(known_hosts);
		*portp = '\0';
		total = 0;
		while (fgets(buffer, BUFSIZE, known_hosts)) {
			len = strlen(buffer);
			if (!len)
				continue;
			if ((total += len) > last_pos) {
				/* finished */
				fwrite(buffer, 1, len, known_hosts_tmp);
				break;
			}
			if (buffer[len - 1] != '\n') {
				/* clean up */
				fclose(known_hosts_tmp);
				unlink(khsbuf);
				DIE("Line too long");
			}
			if (!(p = strstr(buffer, " ")))
				DIE("Invalid entry in known_hosts file");
			*p = '\0';
			if (strcmp(buffer, hostp)) {
				*p = ' ';
				fwrite(buffer, 1, len, known_hosts_tmp);
			}
		}
		*portp = ':';
		memcpy(buffer, khsbuf, BUFSIZE + 1);
		buffer[khslen] = '\0';
		fclose(known_hosts);
		fclose(known_hosts_tmp);
		if (rename(khsbuf, buffer))
			PDIE("Failed to rename temporary file");
		khsbuf[khslen] = '\0';
		if (!(known_hosts = fopen(khsbuf, "a+")))
			PDIE("Failed to re-open known hosts file");
	} else if (strncmp(p, "once", 4)) {
		DIE("Invalid POST request");
	}
}

FILE *open_known_hosts(char *khsbuf)
{
	const char *known_hosts_path, *xdg_dir, *home_dir;
	char *p;
	size_t len;
	struct stat s;
	FILE *known_hosts;

	known_hosts_path = getenv("GMIFETCH_KNOWN_HOSTS");
	if (!known_hosts_path) {
		xdg_dir = getenv("XDG_CONFIG_HOME");
		if ((xdg_dir = getenv("XDG_CONFIG_HOME"))) {
			len = strlen(xdg_dir);
#define CONFIG_REL "/gmifetch/known_hosts"
			if (len + sizeof(CONFIG_REL) > BUFSIZE)
				DIE("Error: config directory path too long");
			memcpy(khsbuf, xdg_dir, len);
			memcpy(&khsbuf[len], CONFIG_REL, sizeof(CONFIG_REL));
		} else {
			if (!(home_dir = getenv("HOME")))
				home_dir = getpwuid(getuid())->pw_dir;
			if (!home_dir)
				DIE("Error: failed to get HOME directory");
#undef CONFIG_REL
#define CONFIG_REL "/.config/gmifetch/known_hosts"
			len = strlen(home_dir);
			if (len + sizeof(CONFIG_REL) > BUFSIZE)
				DIE("Error: home directory path too long");
			memcpy(khsbuf, home_dir, len);
			memcpy(&khsbuf[len], CONFIG_REL, sizeof(CONFIG_REL));
		}
	} else {
		len = strlen(known_hosts_path);
		if (len > BUFSIZE)
			DIE("Error: known hosts path too long");
		memcpy(khsbuf, known_hosts_path, len);
	}
	p = khsbuf;
	if (*p == '/')
		++p;
	for (; *p; ++p) {
		if (*p == '/') {
			*p = '\0';
			if (stat(khsbuf, &s) == -1) {
				if (errno != ENOENT)
					PDIE("Error calling stat");
				if (mkdir(khsbuf, 0755) == -1)
					PDIE("Error calling mkdir");
			} else if (!S_ISDIR(s.st_mode)) {
				if (mkdir(khsbuf, 0755) == -1)
					PDIE("Error calling mkdir");
			}
			*p = '/';
		}
	}
	if (!(known_hosts = fopen(khsbuf, "a+")))
		PDIE("Error opening known hosts file");
	return known_hosts;
}

int main(int argc, const char *argv[])
{
	const char *input_url, *method;
	char *hostp, *portp, *pathp, *endp, *stored_digestp;
	int connect_res;
	time_t their_time;
	char hashbuf2[EVP_MAX_MD_SIZE * 3 + 1];
	char urlbuf[BUFSIZE + 1], buffer[BUFSIZE + 1], khsbuf[BUFSIZE + 2];
	FILE *known_hosts;

	if (argc != 2) {
		input_url = getenv("QUERY_STRING");
		if (!input_url)
			DIE("Usage: gmifetch [url] (or set QUERY_STRING)");
		decode_query(input_url, buffer);
		input_url = buffer;
	} else {
		input_url = argv[1];
	}
	known_hosts = open_known_hosts(khsbuf);
	setup_ssl();
	extract_hostname(input_url, &hostp, &portp, &pathp, &endp, urlbuf);
	method = getenv("REQUEST_METHOD");
	if (method && !strcmp(method, "POST"))
		read_post(hostp, portp, pathp, urlbuf, khsbuf, known_hosts);
	connect_res = connect(hostp, portp, pathp, endp, &stored_digestp,
		&their_time, hashbuf2, known_hosts);
	if (connect_res == 1) { /* valid certificate */
		BIO_puts(conn, urlbuf);
		read_response(urlbuf);
	} else if (connect_res == 0) { /* invalid certificate */
		printf(INVALID_CERT_RESPONSE, stored_digestp, buffer, khsbuf);
	} else if (connect_res == -1) { /* no certificate */
		*portp = '\0';
		printf(UNKNOWN_CERT_RESPONSE, khsbuf, hashbuf2, hostp,
			hashbuf2, (unsigned long)their_time);
	} else { /* -2: updated expiration date */
		*portp = '\0';
		printf(UPDATED_CERT_RESPONSE, khsbuf,
			ctime(&their_time), hostp, hashbuf2,
			(unsigned long)their_time);
	}
	BIO_free_all(conn);
	exit(0);
}
ofs	hex dump	ascii
0000	89 50 4e 47 0d 0a 1a 0a 00 00 00 0d 49 48 44 52 00 00 00 c0 00 00 00 50 08 02 00 00 00 c0 d8 ed	.PNG........IHDR.......P........
0020	13 00 00 00 06 62 4b 47 44 00 ff 00 ff 00 ff a0 bd a7 93 00 00 00 09 70 48 59 73 00 00 0b 13 00	.....bKGD..............pHYs.....
0040	00 0b 13 01 00 9a 9c 18 00 00 00 07 74 49 4d 45 07 d6 07 13 0c 31 06 de 1b 2a 10 00 00 00 1d 74	............tIME.....1...*.....t
0060	45 58 74 43 6f 6d 6d 65 6e 74 00 43 72 65 61 74 65 64 20 77 69 74 68 20 54 68 65 20 47 49 4d 50	EXtComment.Created.with.The.GIMP
0080	ef 64 25 6e 00 00 00 d9 49 44 41 54 78 da ed dd 41 0a 80 30 0c 00 41 23 fe ff cb f1 0d 81 06 52	.d%n....IDATx...A..0..A#.......R
00a0	32 73 56 51 59 da 4b d0 c8 cc 67 92 88 28 1d 3f ed fe b7 79 bd 02 04 84 80 10 10 02 02 01 21 20	2sVQY.K...g..(.?...y..........!.
00c0	04 84 80 40 40 08 08 01 21 20 10 10 02 42 40 08 08 04 84 80 10 10 02 42 40 20 20 04 84 80 10 10	...@@...!....B@........B@.......
00e0	08 08 01 21 20 04 04 02 a2 43 dc fe 00 d5 ef 03 75 7f 7f a8 7a 7d 2b 10 b6 30 10 10 02 42 40 08	...!.....C......u...z}+..0...B@.
0100	08 04 84 80 10 10 02 02 01 21 20 04 84 80 40 40 1c f4 55 4f e8 fe 3f d7 b6 79 9a db e7 99 ac 40	.........!....@@..UO..?..y.....@
0120	d8 c2 10 10 02 42 40 20 20 04 84 80 10 10 08 08 01 21 20 04 04 02 42 40 8c 52 9e 07 9a 36 af d3	.....B@..........!....B@.R...6..
0140	7d 3f db e6 93 ac 40 08 08 01 21 20 10 10 02 42 40 08 08 04 84 80 10 10 02 02 01 21 20 04 c4 d5	}?....@...!....B@..........!....
0160	7e 8b c2 15 a9 b3 6f d5 23 00 00 00 00 49 45 4e 44 ae 42 60 82	~.....o.#....IEND.B`.