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-rw-r--r--util.c481
1 files changed, 0 insertions, 481 deletions
diff --git a/util.c b/util.c
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--- a/util.c
+++ /dev/null
@@ -1,481 +0,0 @@
- /********************************************************************\
- * BitlBee -- An IRC to other IM-networks gateway *
- * *
- * Copyright 2002-2004 Wilmer van der Gaast and others *
- \********************************************************************/
-
-/*
- * Various utility functions. Some are copied from Gaim to support the
- * IM-modules, most are from BitlBee.
- *
- * Copyright (C) 1998-1999, Mark Spencer <markster@marko.net>
- * (and possibly other members of the Gaim team)
- * Copyright 2002-2005 Wilmer van der Gaast <wilmer@gaast.net>
- */
-
-/*
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License with
- the Debian GNU/Linux distribution in /usr/share/common-licenses/GPL;
- if not, write to the Free Software Foundation, Inc., 59 Temple Place,
- Suite 330, Boston, MA 02111-1307 USA
-*/
-
-#define BITLBEE_CORE
-#include "nogaim.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <ctype.h>
-#include <glib.h>
-#include <time.h>
-
-void strip_linefeed(gchar *text)
-{
- int i, j;
- gchar *text2 = g_malloc(strlen(text) + 1);
-
- for (i = 0, j = 0; text[i]; i++)
- if (text[i] != '\r')
- text2[j++] = text[i];
- text2[j] = '\0';
-
- strcpy(text, text2);
- g_free(text2);
-}
-
-char *add_cr(char *text)
-{
- char *ret = NULL;
- int count = 0, j;
- unsigned int i;
-
- if (text[0] == '\n')
- count++;
- for (i = 1; i < strlen(text); i++)
- if (text[i] == '\n' && text[i - 1] != '\r')
- count++;
-
- if (count == 0)
- return g_strdup(text);
-
- ret = g_malloc0(strlen(text) + count + 1);
-
- i = 0; j = 0;
- if (text[i] == '\n')
- ret[j++] = '\r';
- ret[j++] = text[i++];
- for (; i < strlen(text); i++) {
- if (text[i] == '\n' && text[i - 1] != '\r')
- ret[j++] = '\r';
- ret[j++] = text[i];
- }
-
- return ret;
-}
-
-char *tobase64(const char *text)
-{
- char *out;
- int len;
-
- len = strlen(text);
- out = g_malloc((len + 2) /* the == padding */
- / 3 /* every 3-byte block */
- * 4 /* becomes a 4-byte one */
- + 1); /* and of course, ASCIIZ! */
-
- base64_encode_real(text, len, out, "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=");
-
- return out;
-}
-
-void base64_encode_real(const unsigned char *in, int inlen, unsigned char *out, char *b64digits)
-{
- for (; inlen >= 3; inlen -= 3)
- {
- *out++ = b64digits[in[0] >> 2];
- *out++ = b64digits[((in[0]<<4) & 0x30) | (in[1]>>4)];
- *out++ = b64digits[((in[1]<<2) & 0x3c) | (in[2]>>6)];
- *out++ = b64digits[in[2] & 0x3f];
- in += 3;
- }
- if (inlen > 0)
- {
- *out++ = b64digits[in[0] >> 2];
- if (inlen > 1)
- {
- *out++ = b64digits[((in[0]<<4) & 0x30) | (in[1]>>4)];
- *out++ = b64digits[((in[1]<<2) & 0x3c)];
- }
- else
- {
- *out++ = b64digits[((in[0]<<4) & 0x30) | (in[1]>>4)];
- *out++ = b64digits[64];
- }
- *out++ = b64digits[64];
- }
- *out = '\0';
-}
-
-char *normalize(const char *s)
-{
- static char buf[BUF_LEN];
- char *t, *u;
- int x = 0;
-
- g_return_val_if_fail((s != NULL), NULL);
-
- u = t = g_strdup(s);
-
- strcpy(t, s);
- g_strdown(t);
-
- while (*t && (x < BUF_LEN - 1)) {
- if (*t != ' ') {
- buf[x] = *t;
- x++;
- }
- t++;
- }
- buf[x] = '\0';
- g_free(u);
- return buf;
-}
-
-time_t get_time(int year, int month, int day, int hour, int min, int sec)
-{
- struct tm tm;
-
- tm.tm_year = year - 1900;
- tm.tm_mon = month - 1;
- tm.tm_mday = day;
- tm.tm_hour = hour;
- tm.tm_min = min;
- tm.tm_sec = sec >= 0 ? sec : time(NULL) % 60;
- return mktime(&tm);
-}
-
-typedef struct htmlentity
-{
- char code[8];
- char is[4];
-} htmlentity_t;
-
-/* FIXME: This is ISO8859-1(5) centric, so might cause problems with other charsets. */
-
-static const htmlentity_t ent[] =
-{
- { "lt", "<" },
- { "gt", ">" },
- { "amp", "&" },
- { "quot", "\"" },
- { "aacute", "á" },
- { "eacute", "é" },
- { "iacute", "é" },
- { "oacute", "ó" },
- { "uacute", "ú" },
- { "agrave", "à" },
- { "egrave", "è" },
- { "igrave", "ì" },
- { "ograve", "ò" },
- { "ugrave", "ù" },
- { "acirc", "â" },
- { "ecirc", "ê" },
- { "icirc", "î" },
- { "ocirc", "ô" },
- { "ucirc", "û" },
- { "auml", "ä" },
- { "euml", "ë" },
- { "iuml", "ï" },
- { "ouml", "ö" },
- { "uuml", "ü" },
- { "nbsp", " " },
- { "", "" }
-};
-
-void strip_html( char *in )
-{
- char *start = in;
- char *out = g_malloc( strlen( in ) + 1 );
- char *s = out, *cs;
- int i, matched;
-
- memset( out, 0, strlen( in ) + 1 );
-
- while( *in )
- {
- if( *in == '<' && ( isalpha( *(in+1) ) || *(in+1) == '/' ) )
- {
- /* If in points at a < and in+1 points at a letter or a slash, this is probably
- a HTML-tag. Try to find a closing > and continue there. If the > can't be
- found, assume that it wasn't a HTML-tag after all. */
-
- cs = in;
-
- while( *in && *in != '>' )
- in ++;
-
- if( *in )
- {
- if( g_strncasecmp( cs+1, "br", 2) == 0 )
- *(s++) = '\n';
- in ++;
- }
- else
- {
- in = cs;
- *(s++) = *(in++);
- }
- }
- else if( *in == '&' )
- {
- cs = ++in;
- while( *in && isalpha( *in ) )
- in ++;
-
- if( *in == ';' ) in ++;
- matched = 0;
-
- for( i = 0; *ent[i].code; i ++ )
- if( g_strncasecmp( ent[i].code, cs, strlen( ent[i].code ) ) == 0 )
- {
- int j;
-
- for( j = 0; ent[i].is[j]; j ++ )
- *(s++) = ent[i].is[j];
-
- matched = 1;
- break;
- }
-
- /* None of the entities were matched, so return the string */
- if( !matched )
- {
- in = cs - 1;
- *(s++) = *(in++);
- }
- }
- else
- {
- *(s++) = *(in++);
- }
- }
-
- strcpy( start, out );
- g_free( out );
-}
-
-char *escape_html( const char *html )
-{
- const char *c = html;
- GString *ret;
- char *str;
-
- if( html == NULL )
- return( NULL );
-
- ret = g_string_new( "" );
-
- while( *c )
- {
- switch( *c )
- {
- case '&':
- ret = g_string_append( ret, "&amp;" );
- break;
- case '<':
- ret = g_string_append( ret, "&lt;" );
- break;
- case '>':
- ret = g_string_append( ret, "&gt;" );
- break;
- case '"':
- ret = g_string_append( ret, "&quot;" );
- break;
- default:
- ret = g_string_append_c( ret, *c );
- }
- c ++;
- }
-
- str = ret->str;
- g_string_free( ret, FALSE );
- return( str );
-}
-
-void info_string_append(GString *str, char *newline, char *name, char *value)
-{
- if( value && value[0] )
- g_string_sprintfa( str, "%s%s: %s", newline, name, value );
-}
-
-/* Decode%20a%20file%20name */
-void http_decode( char *s )
-{
- char *t;
- int i, j, k;
-
- t = g_new( char, strlen( s ) + 1 );
-
- for( i = j = 0; s[i]; i ++, j ++ )
- {
- if( s[i] == '%' )
- {
- if( sscanf( s + i + 1, "%2x", &k ) )
- {
- t[j] = k;
- i += 2;
- }
- else
- {
- *t = 0;
- break;
- }
- }
- else
- {
- t[j] = s[i];
- }
- }
- t[j] = 0;
-
- strcpy( s, t );
- g_free( t );
-}
-
-/* Warning: This one explodes the string. Worst-cases can make the string 3x its original size! */
-/* This fuction is safe, but make sure you call it safely as well! */
-void http_encode( char *s )
-{
- char *t;
- int i, j;
-
- t = g_strdup( s );
-
- for( i = j = 0; t[i]; i ++, j ++ )
- {
- /* if( t[i] <= ' ' || ((unsigned char *)t)[i] >= 128 || t[i] == '%' ) */
- if( !isalnum( t[i] ) )
- {
- sprintf( s + j, "%%%02X", ((unsigned char*)t)[i] );
- j += 2;
- }
- else
- {
- s[j] = t[i];
- }
- }
- s[j] = 0;
-
- g_free( t );
-}
-
-/* Strip newlines from a string. Modifies the string passed to it. */
-char *strip_newlines( char *source )
-{
- int i;
-
- for( i = 0; source[i] != '\0'; i ++ )
- if( source[i] == '\n' || source[i] == '\r' )
- source[i] = ' ';
-
- return source;
-}
-
-#ifdef IPV6
-/* Wrap an IPv4 address into IPv6 space. Not thread-safe... */
-char *ipv6_wrap( char *src )
-{
- static char dst[64];
- int i;
-
- for( i = 0; src[i]; i ++ )
- if( ( src[i] < '0' || src[i] > '9' ) && src[i] != '.' )
- break;
-
- /* Hmm, it's not even an IP... */
- if( src[i] )
- return src;
-
- g_snprintf( dst, sizeof( dst ), "::ffff:%s", src );
-
- return dst;
-}
-
-/* Unwrap an IPv4 address into IPv6 space. Thread-safe, because it's very simple. :-) */
-char *ipv6_unwrap( char *src )
-{
- int i;
-
- if( g_strncasecmp( src, "::ffff:", 7 ) != 0 )
- return src;
-
- for( i = 7; src[i]; i ++ )
- if( ( src[i] < '0' || src[i] > '9' ) && src[i] != '.' )
- break;
-
- /* Hmm, it's not even an IP... */
- if( src[i] )
- return src;
-
- return ( src + 7 );
-}
-#endif
-
-/* Convert from one charset to another.
-
- from_cs, to_cs: Source and destination charsets
- src, dst: Source and destination strings
- size: Size if src. 0 == use strlen(). strlen() is not reliable for UNICODE/UTF16 strings though.
- maxbuf: Maximum number of bytes to write to dst
-
- Returns the number of bytes written to maxbuf or -1 on an error.
-*/
-signed int do_iconv( char *from_cs, char *to_cs, char *src, char *dst, size_t size, size_t maxbuf )
-{
- GIConv cd;
- size_t res;
- size_t inbytesleft, outbytesleft;
- char *inbuf = src;
- char *outbuf = dst;
-
- cd = g_iconv_open( to_cs, from_cs );
- if( cd == (GIConv) -1 )
- return( -1 );
-
- inbytesleft = size ? size : strlen( src );
- outbytesleft = maxbuf - 1;
- res = g_iconv( cd, &inbuf, &inbytesleft, &outbuf, &outbytesleft );
- *outbuf = '\0';
- g_iconv_close( cd );
-
- if( res == (size_t) -1 )
- return( -1 );
- else
- return( outbuf - dst );
-}
-
-char *set_eval_charset( irc_t *irc, set_t *set, char *value )
-{
- GIConv cd;
-
- if ( g_strncasecmp( value, "none", 4 ) == 0 )
- return( value );
-
- cd = g_iconv_open( "UTF-8", value );
- if( cd == (GIConv) -1 )
- return( NULL );
-
- g_iconv_close( cd );
- return( value );
-}
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