Roxen.git/server/etc/modules/Variable.pmod/module.pmod:be2f31aea1a3661224c2c2f507f1421987c629af

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1622 1623 // $Id: module.pmod,v 1.62 2001/08/08 23:12:46 nilsson Exp $ #include <module.h> #include <roxen.h> // Locale macros //<locale-token project="roxen_config"> LOCALE </locale-token> #define LOCALE(X,Y) \ ([string](mixed)Locale.translate("roxen_config",roxenp()->locale->get(),X,Y)) // Increased for each variable, used to index the mappings below. static int unique_vid; // The theory is that most variables (or at least a sizable percentage // of all variables) does not have these members. Thus this saves // quite a respectable amount of memory, the cost is speed. But // hopefully not all that great a percentage of speed. static mapping(int:mixed) changed_values = ([]); static mapping(int:function(object:void)) changed_callbacks = ([]); static mapping(int:int) all_flags = ([]); static mapping(int:string) all_warnings = ([]); static mapping(int:function(RequestID,object:int)) invisibility_callbacks = set_weak_flag( ([]), 1 ); mapping(string:Variable) all_variables = set_weak_flag( ([]), 1 ); mapping get_all_variables() { return all_variables; } Variable get_variables( string v ) { return all_variables[v]; } class Diff { static private array(string) diff; static private array(string) print_row(array(string) diff_old, array(string) diff_new, int line, int|void start, int|void end) { if(!sizeof(diff_old) && sizeof(diff_new)) // New row. return Array.map(diff_new, lambda(string s) {return "+ " + s;} ); if(sizeof(diff_old) && !sizeof(diff_new)) // Deleted row. return Array.map(diff_old, lambda(string s) {return "- " + s;} ); if(diff_old != diff_new) // Modified row. return Array.map(diff_old, lambda(string s) {return "- " + s;} ) + Array.map(diff_new, lambda(string s) {return "+ " + s;} ); if(start + end < sizeof(diff_old) && (start || end)) { if(start && !end) diff_old = diff_old[.. start - 1]; else { diff_old = diff_old[.. start - 1] + ({ line + sizeof(diff_old) - end }) + diff_old[sizeof(diff_old) - end ..]; } } return Array.map(diff_old, lambda(string|int s) { if(intp(s)) return "Line "+s+":"; return " " + s; } ); } string html(void|int hide_header) { string r = ""; int added, deleted; if(sizeof(diff) && diff[-1] == " ") diff = diff[..sizeof(diff)-2]; foreach(diff, string row) { row = Roxen.html_encode_string(row); row = replace(row, "\t", " "); row = replace(row, " ", " "); switch(row[0]) { case '&': r += "<tt>"+row+"</tt><br>\n"; break; case '+': r += "<tt><font color='darkgreen'>"+row+"</font></tt><br>\n"; added++; break; case '-': r += "<tt><font color='darkred'>"+row+"</font></tt><br>\n"; deleted++; break; case 'L': r += "<i>"+row+"</i><br>\n"; break; } } if (!hide_header) r = "<b>" + LOCALE(201, "Change in content") + "</b><br />\n"+ "<i>"+(added==1? LOCALE(452, "1 line added."): sprintf(LOCALE(453, "%d lines added."), added)) + " " + (deleted==1? LOCALE(454, "1 line deleted."): sprintf(LOCALE(455, "%d lines deleted."), deleted)) + "</i><p>\n"+ r; return r; } array get() { return diff; } void create(array(string) new, array(string) old, int context) { array(array(string)) diff_old, diff_new; [diff_old, diff_new] = Array.diff(old, new); int line = 1; int diffp = 0; diff = ({ }); for(int i = 0; i < sizeof(diff_old); i++) { if(diff_old[i] != diff_new[i]) { diff += print_row(diff_old[i], diff_new[i], line); diffp = 1; } else if(sizeof(diff_old) > 1) { diff += print_row(diff_old[i], diff_new[i], line, diffp?context:0, sizeof(diff_old) - 1 > i?context:0 ); diffp = 0; } line += sizeof(diff_old[i] - ({ })); } } } class Variable //! The basic variable type in Roxen. All other variable types should //! inherit this class. { constant is_variable = 1; constant type = "Basic"; //! Mostly used for debug (sprintf( "%O", variable_obj ) uses it) int _id = unique_vid++; // used for indexing the mappings. static mixed _initial; // default value static string _path = sprintf("v%x",_id); // used for forms static LocaleString __name, __doc; string diff( int render ) //! Generate a html diff of the difference between the current //! value and the default value. //! //! This method is used by the configuration interface. //! //! The argument @[render] is used to select the operation mode. //! //! render=0 means that you should generate an inline diff. This //! should be at most 2 lines of text with no more than 30 or so //! characters per line. This is mostly useful for simple variable //! types such as integers or choice-lists. //! //! If you return 0 when render=0, this function will be called with //! render=1 instead. If you return a non-zero value, you indicate //! that there is a diff available. In this case the function can be //! called again with render=2, in this case you have a full page of //! HTML code to render on. //! //! If you return 0 for render=1 as well, no difference will be //! shown. This is the default. { return 0; } void destroy() { // clean up... m_delete( all_flags, _id ); m_delete( all_warnings, _id ); m_delete( invisibility_callbacks, _id ); m_delete( changed_values, _id ); } string get_warnings() //! Returns the current warnings, if any. { return all_warnings[ _id ]; } int get_flags() //! Returns the 'flags' field for this variable. //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. { return all_flags[_id]; } void set_flags( int flags ) //! Set the flags for this variable. //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. { if(!flags ) m_delete( all_flags, _id ); else all_flags[_id] = flags; } int check_visibility( RequestID id, int more_mode, int expert_mode, int devel_mode, int initial, int|void variable_in_cfif ) //! Return 1 if this variable should be visible in the //! configuration interface. The default implementation check the //! 'flags' field, and the invisibility callback, if any. See //! get_flags, set_flags and set_invisibibility_check_callback //! //! If variable_in_cfif is true, the variable is in a module //! that is added to the configuration interface itself. { int flags = get_flags(); function cb; if( flags & VAR_INVISIBLE ) return 0; if( initial && !(flags & VAR_INITIAL) ) return 0; if( (flags & VAR_EXPERT) && !expert_mode ) return 0; if( (flags & VAR_MORE) && !more_mode ) return 0; if( (flags & VAR_DEVELOPER) && !devel_mode ) return 0; if( (flags & VAR_NOT_CFIF) && variable_in_cfif ) return 0; if( (cb = get_invisibility_check_callback() ) && cb( id, this_object() ) ) return 0; return 1; } void set_invisibility_check_callback( function(RequestID,Variable:int) cb ) //! If the function passed as argument returns 1, the variable //! will not be visible in the configuration interface. //! //! Pass 0 to remove the invisibility callback. { if( functionp( cb ) ) invisibility_callbacks[ _id ] = cb; else m_delete( invisibility_callbacks, _id ); } function(Variable:void) get_changed_callback( ) //! Return the callback set with set_changed_callback { return changed_callbacks[ _id ]; } void set_changed_callback( function(Variable:void) cb ) //! The function passed as an argument will be called //! when the variable value is changed. //! //! Pass 0 to remove the callback. { if( functionp( cb ) ) changed_callbacks[ _id ] = cb; else m_delete( changed_callbacks, _id ); } void add_changed_callback( function(Variable:void) cb ) //! Add a new callback to be called when the variable is changed. //! If set_changed_callback is called, callbacks added with this function //! are overridden. { mixed oc = get_changed_callback( ); if( arrayp( oc ) ) oc += ({ cb }); else oc = ({ oc, cb }) - ({ 0 }); changed_callbacks[ _id ] = oc; } function(RequestID,Variable:int) get_invisibility_check_callback() //! Return the current invisibility check callback { return invisibility_callbacks[_id]; } LocaleString doc( ) //! Return the documentation for this variable (locale dependant). //! //! The default implementation queries the locale object in roxen //! to get the documentation. { return __doc || ""; } LocaleString name( ) //! Return the name of this variable (locale dependant). //! //! The default implementation queries the locale object in roxen //! to get the documentation. { return __name || LOCALE(326,"unnamed")+" "+_id; } LocaleString type_hint( ) //! Return the type hint for this variable. //! Type hints are generic documentation for this variable type, //! and is the same for all instances of the type. { } mixed default_value() //! The default (initial) value for this variable. { return _initial; } void set_warning( string to ) //! Set the warning shown in the configuration interface { if( to && strlen(to) ) all_warnings[ _id ] = to; else m_delete( all_warnings, _id ); } void add_warning( string to ) //! Like set_warning, but adds to the current warning, if any. { if(to) set_warning( (get_warnings()||"") + to ); } int set( mixed to ) //! Set the variable to a new value. //! If this function returns true, the set was successful. //! Otherwise 0 is returned. 0 is also returned if the variable was //! not changed by the set. 1 is returned if the variable was //! changed, and -1 is returned if the variable was changed back to //! its default value. //! //! If verify_set() threw a string, ([])[0] is returned, that is, //! 0 with zero_type set. //! //! If verify_set() threw an exception, the exception is thrown. { string err, e2; if( e2 = catch( [err,to] = verify_set( to )) ) { if( stringp( e2 ) ) { add_warning( e2 ); return ([])[0]; } throw( e2 ); } add_warning( err ); return low_set( to ); } int low_set( mixed to ) //! Forced set. No checking is done whatsoever. //! 1 is returned if the variable was changed, -1 is returned if //! the variable was changed back to it's default value and 0 //! otherwise. { if( equal( to, query() ) ) return 0; if( !equal(to, default_value() ) ) { changed_values[ _id ] = to; if( get_changed_callback() ) catch( get_changed_callback()( this_object() ) ); return 1; } else { m_delete( changed_values, _id ); if( get_changed_callback() ) catch( get_changed_callback()( this_object() ) ); return -1; } } mixed query() //! Returns the current value for this variable. { mixed v; if( !zero_type( v = changed_values[ _id ] ) ) return v; return default_value(); } int is_defaulted() //! Return true if this variable is set to it's default value. { return zero_type( changed_values[ _id ] ) || equal(changed_values[ _id ], default_value()); } array(string|mixed) verify_set_from_form( mixed new_value ) //! Like verify_set, but only called when the variables are set //! from a form. { return ({ 0, new_value }); } array(string|mixed) verify_set( mixed new_value ) //! Return ({ error, new_value }) for the variable, or throw a string. //! //! If error != 0, it should contain a warning or error message. //! If new_value is modified, it will be used instead of the //! supplied value. //! //! If a string is thrown, it will be used as a error message from //! set, and the variable will not be changed. { return ({ 0, new_value }); } mapping(string:string) get_form_vars( RequestID id ) //! Return all form variables preficed with path(). { string p = path(); array names = glob( p+"*", indices(id->variables) ); mapping res = ([ ]); foreach( sort(names), string n ) res[ n[strlen(p).. ] ] = id->variables[ n ]; return res; } mixed transform_from_form( string what, mapping|void v ) //! Given a form value, return what should be set. //! Used by the default set_from_form implementation. { return what; } int(0..1) set_from_form( RequestID id, void|int(0..1) force ) //! Set this variable from the form variable in id->Variables, //! if any are available. The default implementation simply sets //! the variable to the string in the form variables. @[force] //! forces the variable to be set even if the variable already //! has the new value, forcing possible warnings to be added. //! Returns 1 if the variable was changed, otherwise 0. //! //! Other side effects: Might create warnings to be shown to the //! user (see get_warnings) //! //! Calls verify_set_from_form and verify_set { mixed val; if( sizeof( val = get_form_vars(id)) && val[""]) { val = transform_from_form( val[""], val ); if( !force && val == query() ) return 0; array b; mixed q = catch( b = verify_set_from_form( val ) ); if( q || sizeof( b ) != 2 ) { if( q ) add_warning( q ); else add_warning( "Internal error: Illegal sized array " "from verify_set_from_form\n" ); return 0; } if( b ) { set_warning( b[0] ); set( b[1] ); return 1; } } } string path() //! A unique identifier for this variable. //! Should be used to prefix form variable names. //! //! Unless this variable was created by defvar(), the path is set //! by the configuration interface the first time the variable is //! to be shown in a form. This function can thus return 0. If it //! does, and you still have to show the form, call set_path( ) //! with a unique string. { return _path; } void set_path( string to ) //! Set the path. Not normally called from user-level code. //! //! This function must be called at least once before render_form //! can be called (at least if more than one variable is to be //! shown on the same page). This is normally done by the //! configuration interface. { m_delete( all_variables, _path ); _path = to; all_variables[ to ] = this_object(); } string render_form( RequestID id, void|mapping additional_args ); //! Return a (HTML) form to change this variable. The name of all <input> //! or similar variables should be prefixed with the value returned //! from the path() function. string render_view( RequestID id ) //! Return a 'view only' version of this variable. { mixed v = query(); if( arrayp(v) ) v = map(v,lambda(mixed v){return(string)v;})*", " ; return Roxen.html_encode_string( (string)v ); } static string _sprintf( int i ) { if( i == 'O' ) return sprintf( "Variable.%s(%s)",type,(string)name()); } static void create(mixed default_value, void|int flags, void|LocaleString std_name, void|LocaleString std_doc) //! Constructor. //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. //! //! The std_name and std_doc is the name and documentation string //! for the default locale (always english) { set_flags( flags ); _initial = default_value; __name = std_name; __doc = std_doc; all_variables[ path() ] = this_object(); } } // ===================================================================== // Float // ===================================================================== class Float //! Float variable, with optional range checks, and adjustable precision. { inherit Variable; constant type = "Float"; static float _max, _min; static int _prec = 2; static string _format( float m ) { if( !_prec ) return sprintf( "%d", (int)m ); return sprintf( "%1."+_prec+"f", m ); } string diff( int render ) { if(!render) return "("+_format(default_value())+")"; } void set_range(float minimum, float maximum ) //! Set the range of the variable, if minimum and maximum are both //! 0.0 (the default), the range check is removed. { _max = maximum; _min = minimum; } void set_precision( int prec ) //! Set the number of _decimals_ shown to the user. //! If prec is 3, and the float is 1, 1.000 will be shown. //! Default is 2. { _prec = prec; } array(string|float) verify_set( float new_value ) { string warn; if( new_value > _max && _max > _min) { warn = sprintf(LOCALE(328,"Value is bigger than %s, adjusted"), _format(_max) ); new_value = _max; } else if( new_value < _min && _min < _max) { warn = sprintf(LOCALE(329,"Value is less than %s, adjusted"), _format(_min) ); new_value = _min; } return ({ warn, new_value }); } float transform_from_form( string what ) { return (float)what; } string render_view( RequestID id ) { return Roxen.html_encode_string( _format(query()) ); } string render_form( RequestID id, void|mapping additional_args ) { int size = 15; if( _max != _min ) size = max( strlen(_format(_max)), strlen(_format(_min)) )+2; return input(path(), (query()==""?"":_format(query())), size, additional_args); } } // ===================================================================== // Int // ===================================================================== class Int //! Integer variable, with optional range checks { inherit Variable; constant type = "Int"; static int _max, _min; void set_range(int minimum, int maximum ) //! Set the range of the variable, if minimum and maximum are both //! 0 (the default), the range check is removed. { _max = maximum; _min = minimum; } string diff( int render ) { if(!render) return "("+default_value()+")"; } array(string|int) verify_set( mixed new_value ) { string warn; if(!intp( new_value ) ) return ({ sprintf(LOCALE(152,"%O is not an integer"),new_value), query() }); if( new_value > _max && _max > _min ) { warn = sprintf(LOCALE(328,"Value is bigger than %s, adjusted"), (string)_max ); new_value = _max; } else if( new_value < _min && _min < _max) { warn = sprintf(LOCALE(329,"Value is less than %s, adjusted"), (string)_min ); new_value = _min; } return ({ warn, new_value }); } int transform_from_form( mixed what ) { sscanf( what, "%d", what ); return what; } string render_form( RequestID id, void|mapping additional_args ) { int size = 10; if( _min != _max ) size = max( strlen((string)_max), strlen((string)_min) )+2; return input(path(), (string)query(), size, additional_args); } } // ===================================================================== // String // ===================================================================== class String //! String variable { inherit Variable; constant type = "String"; int width = 40; //! The width of the input field. Used by overriding classes. string diff( int render ) { if(!render) return "("+Roxen.html_encode_string( default_value() )+")"; } array(string) verify_set_from_form( mixed new ) { return ({ 0, [string]new-"\r" }); } string render_form( RequestID id, void|mapping additional_args ) { return input(path(), (string)query(), width, additional_args); } } // ===================================================================== // Text // ===================================================================== class Text //! Text (multi-line string) variable { inherit String; constant type = "Text"; int cols = 60; //! The width of the textarea int rows = 10; //! The height of the textarea string diff( int render ) { switch( render ) { case 0: return 0; case 1: return ""; case 2: array lines_orig = default_value()/"\n"; array lines_new = query()/"\n"; Diff diff = Diff( lines_new, lines_orig, 2 ); if( sizeof(diff->get()) ) return diff->html(); else return "<i>"+LOCALE(0,"No difference\n" )+"</i>"; } } array(string) verify_set_from_form( mixed new ) { return ({ 0, [string]new-"\r" }); } string render_form( RequestID id, void|mapping additional_args ) { return "<textarea cols='"+cols+"' rows='"+rows+"' name='"+path()+"'>" + Roxen.html_encode_string( query() || "" ) + "</textarea>"; } static void create(mixed default_value, void|int flags, void|LocaleString std_name, void|LocaleString std_doc) //! Constructor. //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. //! //! The std_name and std_doc is the name and documentation string //! for the default locale (always english) { if( strlen( default_value ) && default_value[0] == '\n' ) // This is enforced by both netscape and IE... So let's just conform. default_value = default_value[1..]; ::create( default_value, flags, std_name, std_doc ); } } // ===================================================================== // Password // ===================================================================== class Password //! Password variable (uses crypt) { inherit String; int width = 20; constant type = "Password"; int(0..1) set_from_form( RequestID id ) { mapping val; if( sizeof( val = get_form_vars(id)) && val[""] && strlen(val[""]) ) { set( crypt( val[""] ) ); return 1; } return 0; } string render_view( RequestID id ) { return "******"; } string render_form( RequestID id, void|mapping additional_args ) { additional_args = additional_args || ([]); additional_args->type="password"; return input(path(), "", 30, additional_args); } } class File //! A filename { inherit String; constant type = "File"; int width = 50; string read( ) //! Read the file as a string. { return Stdio.read_bytes( query() ); } Stat stat() //! Stat the file { return file_stat( query() ); } #ifdef __NT__ array verify_set( string value ) { return ::verify_set( replace( value, "\\", "/" ) ); } #endif } class Location //! A location in the virtual filesystem { inherit String; constant type = "Location"; int width = 50; array verify_set( string value ) { if( !strlen( value ) || !((<'~','/'>)[value[-1]]) ) return ({ LOCALE(330,"You most likely want an ending '/' on this variable"), value }); return ::verify_set( value ); } } class URL //! A URL. { inherit String; constant type = "URL"; int width = 50; array verify_set_from_form( string new_value ) { return verify_port( new_value ); } } class Directory //! A Directory. { inherit String; constant type = "Directory"; int width = 50; array verify_set( string value ) { #ifdef __NT__ value = replace( value, "\\", "/" ); #endif if( strlen(value) && value[-1] != '/' ) value += "/"; if( !strlen( value ) ) return ::verify_set( value ); if( !(r_file_stat( value ) && (r_file_stat( value )[ ST_SIZE ] == -2 ))) return ({sprintf(LOCALE(331,"%s is not a directory"),value)+"\n",value}); return ::verify_set( value ); } Stat stat() //! Stat the directory { return file_stat( query() ); } array get( ) //! Return a listing of all files in the directory { return get_dir( query() ); } } // ===================================================================== // MultipleChoice (one of many) baseclass // ===================================================================== class MultipleChoice //! Base class for multiple-choice (one of many) variables. { inherit Variable; static array _list = ({}); static mapping _table = ([]); string diff( int render ) { if(!render) return "("+_title( default_value() )+")"; } void set_choice_list( array to ) //! Set the list of choices. { _list = to; } array get_choice_list( ) //! Get the list of choices. Used by this class as well. //! You can overload this function if you want a dynamic list. { return _list; } void set_translation_table( mapping to ) //! Set the lookup table. { _table = to; } mapping get_translation_table( ) //! Get the lookup table. Used by this class as well. //! You can overload this function if you want a dynamic table. { return _table; } static string _name( mixed what ) //! Get the name used as value for an element gotten from the //! get_choice_list() function. { return (string)what; } static string _title( mixed what ) //! Get the title used as description (shown to the user) for an //! element gotten from the get_choice_list() function. { if( mapping tt = get_translation_table() ) return tt[ what ] || (string)what; return (string)what; } string render_form( RequestID id, void|mapping additional_args ) { string res = "<select name='"+path()+"'>\n"; string current = _name (query()); int selected = 0; foreach( get_choice_list(), mixed elem ) { mapping m = ([]); m->value = _name( elem ); if( equal( m->value, current ) ) { m->selected="selected"; selected = 1; } res += " "+Roxen.make_container( "option", m, _title( elem ) )+"\n"; } if (!selected) // Make an entry for the current value if it's not in the list, // so no other value appears to be selected, and to ensure that // the value doesn't change as a side-effect by another change. res += " " + Roxen.make_container ( "option", (["value":_name(current), "selected": "selected"]), sprintf(LOCALE(332,"(keep stale value %s)"),_name(current))); return res + "</select>"; } static void create( mixed default_value, array|mapping choices, void|int _flags, void|LocaleString std_name, void|LocaleString std_doc ) //! Constructor. //! //! Choices is the list of possible choices, can be set with //! set_choice_list at any time. //! //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. //! //! The std_name and std_doc is the name and documentation string //! for the default locale (always english) { ::create( default_value, _flags, std_name, std_doc ); if( mappingp( choices ) ) { set_translation_table( choices ); set_choice_list( indices(choices) ); } else set_choice_list( choices ); } } // ===================================================================== // MultipleChoice subclasses // ===================================================================== class StringChoice //! Select one of many strings. { inherit MultipleChoice; constant type = "StringChoice"; } class IntChoice //! Select one of many integers. { inherit MultipleChoice; constant type = "IntChoice"; int transform_from_form( string what ) { return (int)what; } } class FloatChoice //! Select one of many floating point (real) numbers. { inherit MultipleChoice; constant type = "FloatChoice"; static int _prec = 3; void set_precision( int prec ) //! Set the number of _decimals_ shown to the user. //! If prec is 3, and the float is 1, 1.000 will be shown. //! Default is 2. { _prec = prec; } static string _title( mixed what ) { if( !_prec ) return sprintf( "%d", (int)what ); return sprintf( "%1."+_prec+"f", what ); } int transform_from_form( string what ) { array q = get_choice_list(); mapping a = mkmapping( map( q, _name ), q ); return a[what] || (float)what; // Do we want this fallback? } } class FontChoice //! Select a font from the list of available fonts { inherit StringChoice; constant type = "FontChoice"; void set_choice_list() { } array get_choice_list() { return roxenp()->fonts->available_fonts(); } static void create(mixed default_value, void|int flags, void|LocaleString std_name, void|LocaleString std_doc) //! Constructor. //! Flags is a bitwise or of one or more of //! //! VAR_EXPERT Only for experts //! VAR_MORE Only visible when more-mode is on (default on) //! VAR_DEVELOPER Only visible when devel-mode is on (default on) //! VAR_INITIAL Should be configured initially. //! //! The std_name and std_doc is the name and documentation string //! for the default locale (always english) { ::create( default_value, 0, flags,std_name, std_doc ); } } class DatabaseChoice //! Select a database from all available databases. { inherit StringChoice; constant type = "DatabaseChoice"; function(void:void|object) config = lambda() { return 0; }; DatabaseChoice set_configuration_pointer( function(void:object) configuration ) //! Provide a function that returns a configuration object, //! that will be used for authentication against the database //! manager. Typically called as //! @code{set_configuration_pointer(my_configuration)@}. { config = configuration; return this_object(); } array get_choice_list( ) { return ({ " none" }) + sort(DBManager.list( config() )); } static void create(string default_value, void|int flags, void|LocaleString std_name, void|LocaleString std_doc) { ::create( default_value, ({}), flags, std_name, std_doc ); } } // ===================================================================== // List baseclass // ===================================================================== class List //! Many of one type types { inherit Variable; constant type="List"; int width = 40; string transform_to_form( mixed what ) //! Override this function to do the value->form mapping for //! individual elements in the array. { return (string)what; } mixed transform_from_form( string what,mapping v ) { return what; } static int _current_count = time()*100+(gethrtime()/10000); int(0..1) set_from_form(RequestID id) { int rn, do_goto; array l = query(); mapping vl = get_form_vars(id); // first do the assign... if( (int)vl[".count"] != _current_count ) return 0; _current_count++; foreach( indices( vl ), string vv ) if( sscanf( vv, ".set.%d", rn ) && (vv == ".set."+rn) ) { m_delete( id->variables, path()+vv ); l[rn] = transform_from_form( vl[vv], vl ); m_delete( vl, vv ); } // then the move... foreach( indices(vl), string vv ) if( sscanf( vv, ".up.%d.x%*s", rn ) == 2 ) { do_goto = 1; m_delete( id->variables, path()+vv ); m_delete( vl, vv ); l = l[..rn-2] + l[rn..rn] + l[rn-1..rn-1] + l[rn+1..]; } else if( sscanf( vv, ".down.%d.x%*s", rn )==2 ) { do_goto = 1; m_delete( id->variables, path()+vv ); l = l[..rn-1] + l[rn+1..rn+1] + l[rn..rn] + l[rn+2..]; } // then the possible add. if( vl[".new.x"] ) { do_goto = 1; m_delete( id->variables, path()+".new.x" ); l += ({ transform_from_form( "",vl ) }); } // .. and delete .. foreach( indices(vl), string vv ) if( sscanf( vv, ".delete.%d.x%*s", rn )==2 ) { do_goto = 1; m_delete( id->variables, path()+vv ); l = l[..rn-1] + l[rn+1..]; } array b; mixed q = catch( b = verify_set_from_form( l ) ); if( q || sizeof( b ) != 2 ) { if( q ) set_warning( q ); else set_warning( "Internal error: Illegal sized array " "from verify_set_from_form\n" ); return 0; } int ret; if( b ) { set_warning( b[0] ); set( b[1] ); ret = 1; } if( do_goto && !id->misc->do_not_goto ) { RequestID nid = id; while( nid->misc->orig ) nid = id->misc->orig; string section = RXML.get_var("section", "var"); string query = nid->query; if( !query ) query = ""; else query += "&"; query += "random="+random(4949494)+(section?"&section="+section:""); nid->misc->moreheads = ([ "Location":nid->not_query+(nid->misc->path_info||"")+ "?"+query+"#"+path(), ]); if( nid->misc->defines ) nid->misc->defines[ " _error" ] = 302; else if( id->misc->defines ) id->misc->defines[ " _error" ] = 302; } return ret; } string render_row(string prefix, mixed val, int width) { return input( prefix, val, width ); } string render_form( RequestID id, void|mapping additional_args ) { string prefix = path()+"."; int i; string res = "<a name='"+path()+"'>\n</a><table>\n" "<input type='hidden' name='"+prefix+"count' value='"+_current_count+"' />\n"; foreach( map(query(), transform_to_form), mixed val ) { res += "<tr>\n<td><font size='-1'>"+ render_row(prefix+"set."+i, val, width) + "</font></td>\n"; #define BUTTON(X,Y) ("<submit-gbutton2 name='"+X+"'>"+Y+"</submit-gbutton2>") #define REORDER(X,Y) ("<submit-gbutton2 name='"+X+"' icon-src='"+Y+"'></submit-gbutton2>") if( i ) res += "\n<td>"+ REORDER(prefix+"up."+i, "/internal-roxen-up")+ "</td>"; else res += "\n<td></td>"; if( i != sizeof( query())- 1 ) res += "\n<td>"+ REORDER(prefix+"down."+i, "/internal-roxen-down") +"</td>"; else res += "\n<td></td>"; res += "\n<td>"+ BUTTON(prefix+"delete."+i, LOCALE(227, "Delete") ) +"</td>"; "</tr>"; i++; } res += "\n<tr><td colspan='2'>"+ BUTTON(prefix+"new", LOCALE(297, "New row") )+ "</td></tr></table>\n\n"; return res; } } // ===================================================================== // List subclasses // ===================================================================== class DirectoryList //! A list of directories { inherit List; constant type="DirectoryList"; array verify_set( array(string) value ) { string warn = ""; foreach( value, string vi ) { if(!strlen(vi)) // empty continue; if( !(r_file_stat( vi ) && (r_file_stat( vi )[ ST_SIZE ] == -2 ))) warn += sprintf(LOCALE(331,"%s is not a directory"),vi)+"\n"; if( strlen(vi) && vi[-1] != '/' ) value = replace( value, vi, vi+"/" ); } #ifdef __NT__ value = map( value, replace, "\\", "/" ); #endif if( strlen( warn ) ) return ({ warn, value }); return ::verify_set( value ); } } class StringList //! A list of strings { inherit List; constant type="StringList"; } class IntList //! A list of integers { inherit List; constant type="IntList"; int width=20; string transform_to_form(int what) { return (string)what; } int transform_from_form(string what,mapping v) { return (int)what; } } class FloatList //! A list of floating point numbers { inherit List; constant type="DirectoryList"; int width=20; static int _prec = 3; void set_precision( int prec ) //! Set the number of _decimals_ shown to the user. //! If prec is 3, and the float is 1, 1.000 will be shown. //! Default is 2. { _prec = prec; } string transform_to_form(int what) { return sprintf("%1."+_prec+"f", what); } float transform_from_form(string what,mapping v) { return (float)what; } } class URLList //! A list of URLs { inherit List; constant type="URLList"; array verify_set_from_form( array(string) new_value ) { string warn = ""; array res = ({}); foreach( new_value, string vv ) { string tmp1, tmp2; [tmp1,tmp2] = verify_port( vv ); if( tmp1 ) warn += tmp1; res += ({ tmp2 }); } if( !strlen( warn ) ) warn = 0; return ({ warn, res }); } } class PortList //! A list of Port URLs { inherit List; constant type="PortList"; string render_row( string prefix, mixed val, int width ) { string res = "<input type=hidden name='"+prefix+"' value='"+prefix+"' />"; Standards.URI split = Standards.URI( val ); res += "<select name='"+prefix+"prot'>"; foreach( sort(indices( roxenp()->protocols )), string p ) { if( p == split->scheme ) res += "<option selected='t'>"+p+"</option>"; else res += "<option>"+p+"</option>"; } res += "</select>"; res += "://<input type=string name='"+prefix+"host' value='"+ Roxen.html_encode_string(split->host)+"' />"; res += ":<input type=string size=5 name='"+prefix+"port' value='"+ split->port+"' />"; res += "/<input type=string name='"+prefix+"path' value='"+ Roxen.html_encode_string(split->path[1..])+"' />"; return res; } string transform_from_form( string v, mapping va ) { if( v == "" ) return "http://*/"; v = v[strlen(path())..]; return (string)Standards.URI(va[v+"prot"]+"://"+va[v+"host"]+":"+va[v+"port"]+"/"+va[v+"path"]); } array verify_set_from_form( array(string) new_value ) { string warn = ""; array res = ({}); foreach( new_value, string vv ) { string tmp1, tmp2; [tmp1,tmp2] = verify_port( vv ); if( tmp1 ) warn += tmp1; res += ({ tmp2 }); } if( !strlen( warn ) ) warn = ""; return ({ warn, res }); } } class FileList //! A list of filenames. { inherit List; constant type="FileList"; #ifdef __NT__ array verify_set( array(string) value ) { return ::verify_set( map( value, replace, "\\", "/" ) ); } #endif } // ===================================================================== // Flag // ===================================================================== class Flag //! A on/off toggle. { inherit Variable; constant type = "Flag"; int transform_from_form( string what ) { return (int)what; } string render_form( RequestID id, void|mapping additional_args ) { string res = "<select name=\""+path()+"\"> "; if(query()) res += "<option value=\"1\" selected=\"selected\">" + LOCALE("yes", "Yes")+ "</option>\n" "<option value=\"0\">" +LOCALE("no", "No")+ "</option>\n"; else res += "<option value=\"1\">" +LOCALE("yes", "Yes")+ "</option>\n" "<option value=\"0\" selected>" +LOCALE("no", "No")+ "</option>\n"; return res+"</select>"; } } // ================================================================= // Utility functions used in multiple variable classes above // ================================================================= static array(string) verify_port( string port ) { if(!strlen(port)) return ({ 0, port }); string warning=""; if( (int)port ) { warning += sprintf(LOCALE(333,"Assuming http://*:%[0]d/ for %[0]d")+"\n", (int)port); port = "http://*:"+port+"/"; } string protocol, host, path; if(!strlen( port ) ) return ({ LOCALE(334,"Empty URL field")+"\n", port }); if(sscanf( port, "%[^:]://%[^/]%s", protocol, host, path ) != 3) return ({ sprintf(LOCALE(335,"%s does not conform to URL syntax")+"\n",port), port }); if( path == "" || path[-1] != '/' ) { warning += sprintf(LOCALE(336,"Added / to the end of %s")+"\n",port); path += "/"; } if( protocol != lower_case( protocol ) ) { warning += sprintf(LOCALE(338,"Changed %s to %s"), protocol, lower_case( protocol ))+"\n"; protocol = lower_case( protocol ); } #if constant(SSL.sslfile) // All is A-OK #else if( (protocol == "https" || protocol == "ftps") ) warning += LOCALE(339,"SSL support not available in this Pike version.")+"\n"+ sprintf(LOCALE(340,"Please use %s instead."), protocol[..strlen(protocol)-2])+"\n"; #endif int pno; if( sscanf( host, "%s:%d", host, pno ) == 2) if( roxenp()->protocols[ lower_case( protocol ) ] && (pno == roxenp()->protocols[ lower_case( protocol ) ]->default_port )) warning += sprintf(LOCALE(341,"Removed the default port number " "(%d) from %s"),pno,port)+"\n"; else host = host+":"+pno; port = protocol+"://"+host+path; if( !roxenp()->protocols[ protocol ] ) warning += sprintf(LOCALE(342,"Warning: The protocol %s is not known " "by roxen"),protocol)+"\n"; return ({ (strlen(warning)?warning:0), port }); } string input(string name, string value, int size, void|mapping(string:string) args, void|int noxml) { if(!args) args=([]); else args+=([]); args->name=name; if(value) args->value=value; if(!args->size && size) args->size=(string)size; string render="<input"; foreach(indices(args), string attr) { render+=" "+attr+"="; if(!has_value(args[attr], "\"")) render+="\""+args[attr]+"\""; else if(!has_value(args[attr], "'")) render+="'"+args[attr]+"'"; else render+="\""+replace(args[attr], "'", "'")+"\""; } if(noxml) return render+">"; return render+" />"; }

Roxen.git/ server/ etc/ modules/ Variable.pmod/ module.pmod > be2f31aea1a3661224c2c2f507f1421987c629af [Annotate]