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/* File access in libwww
** FILE ACCESS
**
** These are routines for local file access used by WWW browsers and servers.
** Implemented by HTFile.c.
**
** If the file is not a local file, then we pass it on to HTFTP in case it
** can be reached by FTP.
*/
#ifndef HTFILE_H
#define HTFILE_H
#include "HTFormat.h"
#include "HTAccess.h"
#include "HTML.h" /* SCW */
/*
** Controlling globals
**
** These flags control how directories and files are represented as
** hypertext, and are typically set by the application from command
** line options, etc.
*/
extern int HTDirAccess; /* Directory access level */
#define HT_DIR_FORBID 0 /* Altogether forbidden */
#define HT_DIR_SELECTIVE 1 /* If HT_DIR_ENABLE_FILE exists */
#define HT_DIR_OK 2 /* Any accesible directory */
#define HT_DIR_ENABLE_FILE ".www_browsable" /* If exists, can browse */
extern int HTDirReadme; /* Include readme files in listing? */
/* Values: */
#define HT_DIR_README_NONE 0 /* No */
#define HT_DIR_README_TOP 1 /* Yes, first */
#define HT_DIR_README_BOTTOM 2 /* Yes, at the end */
#define HT_DIR_README_FILE "README"
/*
** Convert filenames between local and WWW formats
*/
extern char * HTLocalName PARAMS((CONST char * name));
/*
** Make a WWW name from a full local path name
*/
extern char * WWW_nameOfFile PARAMS((const char * name));
/*
** Generate the name of a cache file
*/
extern char * HTCacheFileName PARAMS((CONST char * name));
/*
** Output directory titles
**
** This is (like the next one) used by HTFTP. It is common code to generate
** the title and heading 1 and the parent directory link for any anchor.
**
** changed to return TRUE if parent directory link was generated,
** FALSE otherwise - KW
*/
extern BOOL HTDirTitles PARAMS((
HTStructured * target,
HTAnchor * anchor,
BOOL tildeIsTop));
/*
** Output a directory entry
**
** This is used by HTFTP.c for example -- it is a common routine for
** generating a linked directory entry.
*/
extern void HTDirEntry PARAMS((
HTStructured * target, /* in which to put the linked text */
CONST char * tail, /* last part of directory name */
CONST char * entry)); /* name of this entry */
/*
** HTSetSuffix: Define the representation for a file suffix
**
** This defines a mapping between local file suffixes and file content
** types and encodings.
**
** ON ENTRY,
**
** suffix includes the "." if that is important (normally, yes!)
**
** representation is MIME-style content-type
**
** encoding is MIME-style content-transfer-encoding
** (8bit, 7bit, etc) or HTTP-style content-encoding
** (gzip, compress etc.)
**
** quality an a priori judgement of the quality of such files
** (0.0..1.0)
**
** HTSetSuffix5 has one more parameter for a short description of the type
** which is otherwise derived from the representation:
**
** desc is a short textual description, or NULL
**
** Examples: HTSetSuffix(".ps", "application/postscript", "8bit", 1.0);
** Examples: HTSetSuffix(".psz", "application/postscript", "gzip", 1.0);
** A MIME type could also indicate a non-trivial encoding on its own
** ("application/x-compressed-tar"), but in that case don't use enconding
** to also indicate it but use "binary" etc.
*/
extern void HTSetSuffix5 PARAMS((
CONST char * suffix,
CONST char * representation,
CONST char * encoding,
CONST char * desc,
float quality));
#define HTSetSuffix(suff,rep,enc,q) HTSetSuffix5(suff, rep, enc, NULL, q)
/*
** HTFileFormat: Get Representation and Encoding from file name.
**
** ON EXIT,
**
** return The represntation it imagines the file is in.
**
** *pEncoding The encoding (binary, 7bit, etc). See HTSetSuffix.
*/
extern HTFormat HTFileFormat PARAMS((
CONST char * filename,
HTAtom ** pEncoding,
CONST char ** pDesc));
/*
** HTCharsetFormat: Revise the file format in relation to the Lynx charset.
**
** This checks the format associated with an anchor for
** for an extended MIME Content-Type, and if a charset is
** indicated, sets Lynx up for proper handling in relation
** to the currently selected character set. - FM
*/
extern HTFormat HTCharsetFormat PARAMS((
HTFormat format,
HTParentAnchor * anchor,
int default_LYhndl));
/*
** Determine file value from file name.
*/
extern float HTFileValue PARAMS((
CONST char * filename));
/*
** Determine write access to a file.
**
** ON EXIT,
**
** return value YES if file can be accessed and can be written to.
**
** BUGS
**
** Isn't there a quicker way?
*/
extern BOOL HTEditable PARAMS((CONST char * filename));
/*
** Determine a suitable suffix, given the representation.
**
** ON ENTRY,
**
** rep is the atomized MIME style representation
** enc is an encoding (8bit, binary, gzip, compress,..)
**
** ON EXIT,
**
** returns a pointer to a suitable suffix string if one has
** been found, else NULL.
*/
extern CONST char * HTFileSuffix PARAMS((
HTAtom* rep,
CONST char* enc));
/*
** The Protocols
*/
#ifdef GLOBALREF_IS_MACRO
extern GLOBALREF (HTProtocol,HTFTP);
extern GLOBALREF (HTProtocol,HTFile);
#else
GLOBALREF HTProtocol HTFTP, HTFile;
#endif /* GLOBALREF_IS_MACRO */
#endif /* HTFILE_H */
/* end of HTFile */
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