--- parser3/src/classes/file.C	2001/03/19 20:46:35	1.2
+++ parser3/src/classes/file.C	2001/04/28 15:22:38	1.35
@@ -1,38 +1,294 @@
-/*
-	Parser
+/** @file
+	Parser: @b file parser class.
+
 	Copyright (c) 2001 ArtLebedev Group (http://www.artlebedev.com)
+
 	Author: Alexander Petrosyan <paf@design.ru> (http://design.ru/paf)
 
-	$Id: file.C,v 1.2 2001/03/19 20:46:35 paf Exp $
+	$Id: file.C,v 1.35 2001/04/28 15:22:38 paf Exp $
 */
 
+#include "classes.h"
 #include "pa_request.h"
-#include "_file.h"
 #include "pa_vfile.h"
+#include "pa_table.h"
+#include "pa_vint.h"
+#include "pa_exec.h"
+
+// consts
+
+// defines
+
+#define FILE_CLASS_NAME "file"
+
+// class
+
+class MFile : public Methoded {
+public: // VStateless_class
+	
+	Value *create_new_value(Pool& pool) { return new(pool) VFile(pool); }
+
+public: // Methoded
+	bool used_directly() { return true; }
+
+public:
+	MFile(Pool& pool);
 
-// global var
+};
 
-VStateless_class *file_base_class;
+// consts
+
+const int FIND_MONKEY_MAX_HOPS=10;
 
 // methods
 
-static void _save(Request& r, const String& method_name, Array *params) {
-	//\Pool& pool=r.pool();
-	Value *vfile_name=static_cast<Value *>(params->get(0));
-	// forcing
-	// ^save{this body type}
-	r.fail_if_junction_(false, *vfile_name, method_name, "file name must be junction");
+static void _save(Request& r, const String&, MethodParams *params) {
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	// save
+	static_cast<VFile *>(r.self)->save(r.absolute(vfile_name.as_string()));
+}
+
+static void _delete(Request& r, const String&, MethodParams *params) {
+	Pool& pool=r.pool();
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	// unlink
+	file_delete(pool, r.absolute(vfile_name.as_string()));
+}
+
+static void _find(Request& r, const String& method_name, MethodParams *params) {
+	Pool& pool=r.pool();
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	const String &lfile_name=vfile_name.as_string();
 
+	// passed file name simply exists in current dir
+	if(file_readable(r.absolute(lfile_name))) {
+		r.write_no_lang(*new(pool) VString(lfile_name));
+		return;
+	}
+
+	// scan .. dirs for result
+	for(int i=0; i<FIND_MONKEY_MAX_HOPS; i++) {
+		String test_name(pool);
+		for(int j=0; j<i; j++)
+			test_name.APPEND_CONST("../");
+		test_name.append(lfile_name, String::UL_CLEAN);
+		if(file_readable(r.absolute(test_name))) {
+			r.write_no_lang(*new(pool) VString(*new(pool) String(test_name)));
+			return;
+		}
+	}
+
+	// not found
+	if(params->size()==2) {
+		Value& not_found_code=params->get_junction(1, "not-found param must be code");
+		r.write_pass_lang(r.process(not_found_code));
+	}
+}
+
+static void _load(Request& r, const String& method_name, MethodParams *params) {
+	Pool& pool=r.pool();
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	const String& lfile_name=vfile_name.as_string();
+
+	void *data;  size_t size;
+	file_read(pool, r.absolute(lfile_name), data, size, false/*binary*/);
+
+	char *user_file_name=params->size()==1?lfile_name.cstr(String::UL_FILE_NAME)
+		:params->get(1).as_string().cstr();
+	
+	static_cast<VFile *>(r.self)->set(true/*tainted*/, data, size, 
+		user_file_name, &r.mime_type_of(user_file_name));
+}
+
+static void _stat(Request& r, const String& method_name, MethodParams *params) {
+	Pool& pool=r.pool();
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	const String& lfile_name=vfile_name.as_string();
+
+	size_t size=file_size(r.absolute(lfile_name));
+	
+	static_cast<VFile *>(r.self)->set(true/*tainted*/, 0/*no bytes*/, size);
+}
+
+static void append_env_pair(const Hash::Key& key, Hash::Val *value, void *info) {
+	Hash& hash=*static_cast<Hash *>(info);
+	hash.put(key, &static_cast<Value *>(value)->as_string());
+}
+
+static void pass_cgi_header_attribute(Array::Item *value, void *info) {
+	String& string=*static_cast<String *>(value);
+	Hash& hash=*static_cast<Hash *>(info);
+	int colon_pos=string.pos(":", 1);
+	if(colon_pos>0)
+		hash.put(string.mid(0, colon_pos), 
+		new(string.pool()) VString(string.mid(colon_pos+1, string.size())));
+}
+/**
+	^exec[file-name]
+	^exec[file-name;env hash]
+	^exec[file-name;env hash;cmd;line;arg;s]
+	@todo fix `` in perl - they produced flipping consoles and no output to perl
+*/
+static void _cgi(Request& r, const String& method_name, MethodParams *params) {
+	Pool& pool=r.pool();
+
+	Value& vfile_name=params->get_no_junction(0, "file name must not be code");
+
+	const String& script_name=r.absolute(vfile_name.as_string());
+
+	Hash env(pool);
+	#define PASS(key) \
+		String key(pool); \
+		if(const char *value=SAPI::get_env(pool, #key)) { \
+			key.APPEND_CONST(value); \
+			env.put(String(pool, #key), &key); \
+		}
+	#define INFO(key, value) \
+		String value(pool); \
+		if(r.info.value) { \
+			value.APPEND_CONST(r.info.value); \
+			env.put(String(pool, key), &value); \
+		}
+
+	// const
+	String gateway_interface(pool, "CGI/1.1");
+	env.put(String(pool, "GATEWAY_INTERFACE"), &gateway_interface);
+	// from Request.info
+	INFO("DOCUMENT_ROOT", document_root);
+	INFO("PATH_TRANSLATED", path_translated);
+	INFO("SERVER_PROTOCOL", method);
+	INFO("QUERY_STRING", query_string);
+	INFO("REQUEST_URI", uri);
+	INFO("CONTENT_TYPE", content_type);
+	char content_length_cstr[MAX_NUMBER];  
+	snprintf(content_length_cstr, MAX_NUMBER, "%u", r.info.content_length);
+	String content_length(pool, content_length_cstr);
+	env.put(String(pool, "CONTENT_LENGTH"), &content_length);
+	INFO("HTTP_COOKIE", cookie);
+	INFO("HTTP_USER_AGENT", user_agent);
+	// passing some SAPI:get_env-s
+	PASS(SERVER_NAME);
+	PASS(SERVER_PORT);
+	PASS(HTTP_REFERER);
+	PASS(REMOTE_ADDR);
+	PASS(REMOTE_HOST);
+	PASS(REMOTE_USER);
+	// SCRIPT_NAME
+	env.put(String(pool, "SCRIPT_NAME"), &script_name);
+#ifdef WIN32
+	// WIN32 shell
+	PASS(COMSPEC);
+#endif
+
+	if(params->size()>1) {
+		Value& venv=params->get_no_junction(1, "env must not be code");
+		if(Hash *user_env=venv.get_hash())
+			user_env->for_each(append_env_pair, &env);
+		else
+			PTHROW(0, 0,
+				&method_name,
+				"env must be hash");
+	}
+
+	Array *argv=0;
+	if(params->size()>2) {
+		argv=new(pool) Array(pool, params->size()-2);
+		for(int i=2; i<params->size(); i++)
+			*argv+=&params->get(i).as_string();
+	}
+
+	const String in(pool, r.post_data, r.post_size);
+	String out(pool);
+	//out.APPEND_CONST("content-type:text/plain\nheader:test-header\n\ntest-body");
+	//out<<in;
+	String& err=*new(pool) String(pool);
+	int exit_code=pa_exec(script_name, &env, argv, in, out, err);
+
+	VFile& self=*static_cast<VFile *>(r.self);
+	// construct with 'out' body and header
+	int delim_size;
+	const char *eol_marker="\r\n"; size_t eol_marker_size=2;
+	int pos=out.pos("\r\n\r\n", delim_size=4);
+	if(pos<0) {
+		eol_marker="\n"; eol_marker_size=1;
+		pos=out.pos("\n\n", delim_size=2);
+	}
+	if(pos<0) {
+		delim_size=0; // calm down, compiler
+		PTHROW(0, 0,
+			&method_name,
+			"output does not contain CGI header; exit code=%d; size=%u; text: \"%s\"", 
+				exit_code, (uint)out.size(), out.cstr());
+	}
+
+	const String& header=out.mid(0, pos);
+	const String& body=out.mid(pos+delim_size, out.size());
+
+	// body
+	self.set(false/*not tainted*/, body.cstr(String::UL_AS_IS), body.size());
+
+	// header to $fields
 	{
-		Temp_lang temp_lang(r, String::Untaint_lang::FILE);
-		static_cast<VFile *>(r.self)->save(
-			r.absolute(r.process(*vfile_name).as_string().cstr()));
+		Array rows(pool);
+		header.split(rows, 0, eol_marker, eol_marker_size, String::UL_CLEAN);
+		rows.for_each(pass_cgi_header_attribute, &self.fields());
+	}
+
+	// $exit-code
+	self.fields().put(
+		*new(pool) String(pool, "exit-code"),
+		new(pool) VInt(pool, exit_code));
+	
+	// $stderr
+	if(err.size()) {
+		self.fields().put(
+			*new(pool) String(pool, "stderr"),
+			new(pool) VString(err));
+
+		SAPI::log(pool, "cgi: %s", err.cstr());
 	}
 }
 
-// initialize
+// constructor
+
+MFile::MFile(Pool& apool) : Methoded(apool) {
+	set_name(*NEW String(pool(), FILE_CLASS_NAME));
+
 
-void initialize_file_base_class(Pool& pool, VStateless_class& vclass) {
 	// ^save[file-name]
-	vclass.add_native_method("save", _save, 1, 1);
+	add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1);
+
+	// ^delete[file-name]
+	add_native_method("delete", Method::CT_STATIC, _delete, 1, 1);
+
+	// ^find[file-name]
+	// ^find[file-name]{when-not-found}
+	add_native_method("find", Method::CT_STATIC, _find, 1, 2);
+
+	// ^load[disk-name]
+	// ^load[disk-name;user-name]
+	add_native_method("load", Method::CT_DYNAMIC, _load, 1, 2);
+
+	// ^stat[disk-name]
+	add_native_method("stat", Method::CT_DYNAMIC, _stat, 1, 1);
+
+	// ^exec[file-name]
+	// ^exec[file-name;env hash]
+	// ^exec[file-name;env hash;1cmd;2line;3ar;4g;5s]
+	add_native_method("cgi", Method::CT_DYNAMIC, _cgi, 1, 2+5);
+}
+
+// global variable
+
+Methoded *file_class;
+
+// creator
+
+Methoded *MFile_create(Pool& pool) {
+	return file_class=new(pool) MFile(pool);
 }