#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <ctype.h>
#include "fm.h"
#include "gc.h"
#include "terms.h"
/* Prototype declaration of internal functions */
#ifdef HAVE_READLINE
#include <readline/readline.h>
#else /* ! HAVE_READLINE */
static char *readline( char* );
#endif /* ! HAVE_READLINE */
static TextList* split( char * );
/* Prototype declaration of command functions */
static void get( TextList* );
static void post( TextList* );
static void set( TextList* );
static void show( TextList* );
static void quit( TextList* );
static void help( TextList* );
/* Table of command functions */
struct {
const char *name;
const char *option_string;
const char *help;
void (*func)( TextList* );
} command_table[] = {
{ "get", "[-download_only] URL", "Retrieve URL.", get },
{ "post", "[-download_only] [-target TARGET] [-charset CHARSET]"
" [-enctype ENCTYPE] [-body BODY] [-boundary BOUNDARY] [-length LEN] URL",
"Retrieve URL.", post },
{ "set", "VARIABLE VALUE", "Set VALUE to VARIABLE.", set },
{ "show", "VARIABLE", "Show value of VARIABLE.", show },
{ "quit", "", "Quit program.", quit },
{ "help", "", "Display help messages.", help },
{ NULL, NULL, NULL, NULL },
};
/* Prototype declaration of functions to manipulate configuration variables */
static void set_column( TextList* );
static void show_column( TextList* );
/* Table of configuration variables */
struct {
const char *name;
void (*set_func)( TextList* );
void (*show_func)( TextList* );
} variable_table[] = {
{ "column", set_column, show_column },
{ NULL, NULL, NULL },
};
static char* get_mime_charset_name( int coding ){
Str r;
switch( coding ){
case CODE_EUC:
r = Strnew_charp( "euc-japan" );
break;
case CODE_SJIS:
r = Strnew_charp( "shift_jis" );
break;
case CODE_JIS_m:
case CODE_JIS_n:
case CODE_JIS_N:
case CODE_JIS_j:
case CODE_JIS_J:
r = Strnew_charp( "iso-2022-jp" );
break;
default:
return NULL;
}
return r->ptr;
}
static void print_headers( Buffer *buf, int len ){
TextListItem *tp;
if( buf->document_header ){
for( tp = buf->document_header->first; tp; tp = tp->next )
printf( "%s\n", tp->ptr );
}
printf( "w3m-content-type: %s\n", buf->type );
#ifdef JP_CHARSET
if( buf->document_code )
printf( "w3m-content-charset: %s\n",
get_mime_charset_name( buf->document_code ) );
#endif
if( len > 0 )
printf( "w3m-content-length: %d\n", len );
}
static void print_formlist( int fid, FormList *fp ){
Str s = Sprintf( "w3m-form: (formlist (fid %d) (action \"%s\") (method \"%s\")",
fid,
fp->action->ptr,
( fp->method == FORM_METHOD_POST )? "post"
:( ( fp->method == FORM_METHOD_INTERNAL )? "internal" : "get" ) );
if( fp->target )
Strcat( s, Sprintf( " (target \"%s\")", fp->target ) );
if( fp->charset )
Strcat( s, Sprintf( " (charset '%s)", get_mime_charset_name(fp->charset) ) );
if( fp->enctype == FORM_ENCTYPE_MULTIPART )
Strcat_charp( s, " (enctype \"multipart/form-data\")" );
if( fp->boundary )
Strcat( s, Sprintf( " (boundary \"%s\")", fp->boundary ) );
Strcat_charp( s, ")\n" );
Strfputs( s, stdout );
}
static void internal_get( char *url, int flag, FormList *request ){
Buffer *buf;
backend_halfdump_str = Strnew_charp( "<pre>\n" );
do_download = flag;
buf = loadGeneralFile( url, NULL, NO_REFERER, 0, request );
do_download = FALSE;
if( buf != NULL && buf != NO_BUFFER ){
if( !strcasecmp( buf->type, "text/html" ) ){
Strcat( backend_halfdump_str,
Sprintf( "</pre><title>%s</title>\n", buf->buffername ) );
print_headers( buf, backend_halfdump_str->length );
if( buf->formlist ){
FormList *fp;
int fid = 0;
for( fp = buf->formlist; fp; fp = fp->next ) fid++;
for( fp = buf->formlist; fp; fp = fp->next )
print_formlist( --fid, fp );
}
printf( "\n" );
Strfputs( backend_halfdump_str, stdout );
} else {
if( !strcasecmp( buf->type, "text/plain" ) ){
Line *lp;
int len = 0;
for( lp = buf->firstLine; lp; lp = lp->next ){
len += lp->len;
if( lp->lineBuf[lp->len-1] != '\n' ) len++;
}
print_headers( buf, len );
printf( "\n" );
saveBuffer( buf, stdout );
} else {
print_headers( buf, 0 );
}
}
}
}
/* Command: get */
static void get( TextList *argv ){
char *p, *url = NULL;
int flag = FALSE;
while(( p = popText( argv ) )){
if( !strcasecmp( p, "-download_only" ) )
flag = TRUE;
else
url = p;
}
if( url ){
internal_get( url, flag, NULL );
}
}
/* Command: post */
static void post( TextList *argv ){
FormList *request;
char *p, *target = NULL, *charset = NULL,
*enctype = NULL, *body = NULL, *boundary = NULL, *url = NULL;
int flag = FALSE, length = 0;
while(( p = popText( argv ) )){
if( !strcasecmp( p, "-download_only" ) )
flag = TRUE;
else if( !strcasecmp( p, "-target" ) )
target = popText( argv );
else if( !strcasecmp( p, "-charset" ) )
charset = popText( argv );
else if( !strcasecmp( p, "-enctype" ) )
enctype = popText( argv );
else if( !strcasecmp( p, "-body" ) )
body = popText( argv );
else if( !strcasecmp( p, "-boundary" ) )
boundary = popText( argv );
else if( !strcasecmp( p, "-length" ) )
length = atol( popText( argv ) );
else
url = p;
}
if( url ){
request = newFormList( NULL, "post", charset, enctype, target, NULL );
request->body = body;
request->boundary = boundary;
request->length = ( length > 0 )? length : ( body ? strlen(body) : 0 );
internal_get( url, flag, request );
}
}
/* Command: set */
static void set( TextList *argv ){
if( argv->nitem > 1 ){
int i;
for( i = 0; variable_table[i].name; i++ ){
if( !strcasecmp( variable_table[i].name, argv->first->ptr ) ){
popText( argv );
if( variable_table[i].set_func )
variable_table[i].set_func( argv );
break;
}
}
}
}
/* Command: show */
static void show( TextList *argv ){
if( argv->nitem >= 1 ){
int i;
for( i = 0; variable_table[i].name; i++ ){
if( !strcasecmp( variable_table[i].name, argv->first->ptr ) ){
popText( argv );
if( variable_table[i].show_func )
variable_table[i].show_func( argv );
break;
}
}
}
}
/* Command: quit */
static void quit( TextList *argv ){
deleteFiles();
#ifdef USE_COOKIE
save_cookies();
#endif /* USE_COOKIE */
exit(0);
}
/* Command: help */
static void help( TextList *argv ){
int i;
for( i = 0; command_table[i].name; i++ )
printf( "%s %s\n %s\n",
command_table[i].name,
command_table[i].option_string,
command_table[i].help );
}
/* Sub command: set COLS */
static void set_column( TextList *argv ){
if( argv->nitem == 1 ){
COLS = atol( argv->first->ptr );
}
}
/* Sub command: show COLS */
static void show_column( TextList *argv ){
fprintf( stdout, "column=%d\n", COLS );
}
/* Call appropriate command function based on given string */
static void call_command_function( char *str ){
int i;
TextList *argv = split( str );
if( argv->nitem > 0 ){
for( i = 0; command_table[i].name; i++ ){
if( !strcasecmp( command_table[i].name, argv->first->ptr ) ){
popText( argv );
if( command_table[i].func )
command_table[i].func( argv );
break;
}
}
}
}
/* Main function */
int backend( void ){
char *str;
extern int w3m_dump; /* Declared in main.c. */
w3m_dump = FALSE;
w3m_halfdump = FALSE;
if (COLS == 0) COLS = 80;
#ifdef MOUSE
mouse_end();
use_mouse = FALSE;
#endif /* MOUSE */
if( backend_batch_commands ){
while(( str = popText(backend_batch_commands) ))
call_command_function( str );
} else {
while(( str = readline( "w3m> " ) ))
call_command_function( str );
}
quit( NULL );
return 0;
}
/* Dummy function of readline(). */
#ifndef HAVE_READLINE
static char *readline( char *prompt ){
Str s;
fputs( prompt, stdout );
fflush( stdout );
s = Strfgets( stdin );
if( feof( stdin ) && (strlen( s->ptr ) == 0) )
return NULL;
else
return s->ptr;
}
#endif /* ! HAVE_READLINE */
/* Splits a string into a list of tokens and returns that list. */
static TextList* split( char *p ){
int in_double_quote = FALSE, in_single_quote = FALSE;
Str s = Strnew();
TextList* tp = newTextList();
for( ; *p; p++ ){
switch( *p ){
case '"':
if( in_single_quote )
Strcat_char( s, '"' );
else
in_double_quote = !in_double_quote;
break;
case '\'':
if( in_double_quote )
Strcat_char( s, '\'' );
else
in_single_quote = !in_single_quote;
break;
case '\\':
if( !in_single_quote ){
/* Process escape characters. */
p++;
switch( *p ){
case 't':
Strcat_char( s, '\t' );
break;
case 'r':
Strcat_char( s, '\r' );
break;
case 'f':
Strcat_char( s, '\f' );
break;
case 'n':
Strcat_char( s, '\n' );
break;
case '\0':
goto LAST;
default:
Strcat_char( s, *p );
}
} else {
Strcat_char( s, *p );
}
break;
case ' ':
case '\t':
case '\r':
case '\f':
case '\n':
/* Separators are detected. */
if( in_double_quote || in_single_quote ){
Strcat_char( s, *p );
} else if( s->length > 0 ){
pushText( tp, s->ptr );
s = Strnew();
}
break;
default:
Strcat_char( s, *p );
}
}
LAST:
if( s->length > 0 )
pushText( tp, s->ptr );
return tp;
}
