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1918 <span class=
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1935 <a href=
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1938 <span class=
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1954 <li class=
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1955 <a href=
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1958 <span class=
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1974 <li class=
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1975 <a href=
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1978 <span class=
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1994 <li class=
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1995 <a href=
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1998 <span class=
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1999 objectTypeDefinition
2014 <li class=
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2015 <a href=
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2018 <span class=
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2035 <a href=
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2055 <a href=
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2075 <a href=
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2078 <span class=
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2115 <a href=
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2135 <a href=
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2138 <span class=
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2155 <a href=
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2158 <span class=
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2174 <li class=
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2178 <span class=
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2195 <a href=
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2255 <a href=
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2258 <span class=
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2259 userNotificationEvent
2274 <li class=
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2275 <a href=
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2278 <span class=
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2295 <a href=
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2298 <span class=
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2322 <li class=
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2323 <a href=
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2392 <li class=
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2403 <span class=
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2404 From WoltLab Suite
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2408 <span class=
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2411 <nav class=
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2412 <label class=
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2413 <span class=
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2414 From WoltLab Suite
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2416 <ul class=
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>
2423 <li class=
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2424 <a href=
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2444 <a href=
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2447 <span class=
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2463 <li class=
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2464 <a href=
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2467 <span class=
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2468 Deprecations and Removals
2496 <li class=
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2508 From WoltLab Suite
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2512 <span class=
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2515 <nav class=
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2517 <span class=
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2518 From WoltLab Suite
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2520 <ul class=
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2527 <li class=
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2547 <li class=
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2548 <a href=
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2551 <span class=
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2552 TypeScript and JavaScript
2567 <li class=
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2568 <a href=
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2571 <span class=
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2588 <a href=
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2591 <span class=
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2608 <a href=
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2611 <span class=
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2627 <li class=
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2628 <a href=
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2631 <span class=
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2632 Third Party Libraries
2647 <li class=
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2648 <a href=
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2651 <span class=
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2652 Deprecations and Removals
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2692 From WoltLab Suite
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2696 <span class=
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2699 <nav class=
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2700 <label class=
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2701 <span class=
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2702 From WoltLab Suite
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2704 <ul class=
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>
2711 <li class=
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2712 <a href=
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2715 <span class=
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2731 <li class=
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2732 <a href=
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2735 <span class=
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2736 TypeScript and JavaScript
2751 <li class=
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2752 <a href=
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2755 <span class=
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2771 <li class=
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2772 <a href=
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2775 <span class=
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2776 Third Party Libraries
2791 <li class=
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2792 <a href=
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2795 <span class=
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2796 Deprecations and Removals
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2838 From WoltLab Suite
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2845 <nav class=
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2848 From WoltLab Suite
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2850 <ul class=
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2887 <label class=
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2890 <span class=
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2891 Session Handling and Authentication
2895 <span class=
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2898 <a href=
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2901 <span class=
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2902 Session Handling and Authentication
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2923 <li class=
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2924 <a href=
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2925 Summary and Concepts
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2929 <ul class=
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2931 <li class=
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2932 <a href=
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2933 Legacy Persistent Login
2938 <li class=
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2939 <a href=
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2945 <li class=
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2947 Merged ACP and Frontend Sessions
2952 <li class=
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2953 <a href=
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2954 Improved Authentication and Reauthentication
2964 <li class=
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2965 <a href=
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2966 Additions and Changes
2969 <nav class=
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2970 <ul class=
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2972 <li class=
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2973 <a href=
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2979 <li class=
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2986 <li class=
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2987 <a href=
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2993 <li class=
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2994 <a href=
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2995 Multi-factor Authentication
2998 <nav class=
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2999 <ul class=
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3001 <li class=
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3002 <a href=
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3003 Adding Multi-factor Methods
3008 <li class=
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3009 <a href=
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3010 Enforcing Multi-factor Authentication
3025 <li class=
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3026 <a href=
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3027 Deprecations and Removals
3030 <nav class=
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3031 <ul class=
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3033 <li class=
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3034 <a href=
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3040 <li class=
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3041 <a href=
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3047 <li class=
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3048 <a href=
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3054 <li class=
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3061 <li class=
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3062 <a href=
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3063 Security Token Constants
3068 <li class=
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3069 <a href=
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3070 PasswordUtil and Double BCrypt Hashes
3094 <li class=
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3095 <a href=
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3098 <span class=
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3099 TypeScript and JavaScript
3114 <li class=
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3115 <a href=
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3118 <span class=
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3134 <li class=
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3135 <a href=
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3138 <span class=
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3139 Third Party Libraries
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3172 <input class=
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3178 <span class=
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3179 From WoltLab Suite
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3183 <span class=
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3186 <nav class=
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"__nav_6_5_label" aria-expanded=
"false">
3187 <label class=
"md-nav__title" for=
"__nav_6_5">
3188 <span class=
"md-nav__icon md-icon"></span>
3189 From WoltLab Suite
5.2
3191 <ul class=
"md-nav__list" data-md-scrollfix
>
3198 <li class=
"md-nav__item">
3199 <a href=
"../../wsc52/php/" class=
"md-nav__link">
3202 <span class=
"md-ellipsis">
3218 <li class=
"md-nav__item">
3219 <a href=
"../../wsc52/templates/" class=
"md-nav__link">
3222 <span class=
"md-ellipsis">
3223 Templates and Languages
3238 <li class=
"md-nav__item">
3239 <a href=
"../../wsc52/libraries/" class=
"md-nav__link">
3242 <span class=
"md-ellipsis">
3243 Third Party Libraries
3271 <li class=
"md-nav__item md-nav__item--nested">
3276 <input class=
"md-nav__toggle md-toggle " type=
"checkbox" id=
"__nav_6_6" >
3279 <label class=
"md-nav__link" for=
"__nav_6_6" id=
"__nav_6_6_label" tabindex=
"0">
3282 <span class=
"md-ellipsis">
3283 From WoltLab Suite
3.1
3287 <span class=
"md-nav__icon md-icon"></span>
3290 <nav class=
"md-nav" data-md-level=
"2" aria-labelledby=
"__nav_6_6_label" aria-expanded=
"false">
3291 <label class=
"md-nav__title" for=
"__nav_6_6">
3292 <span class=
"md-nav__icon md-icon"></span>
3293 From WoltLab Suite
3.1
3295 <ul class=
"md-nav__list" data-md-scrollfix
>
3302 <li class=
"md-nav__item">
3303 <a href=
"../../wsc31/php/" class=
"md-nav__link">
3306 <span class=
"md-ellipsis">
3335 <li class=
"md-nav__item md-nav__item--nested">
3340 <input class=
"md-nav__toggle md-toggle " type=
"checkbox" id=
"__nav_6_7" >
3343 <label class=
"md-nav__link" for=
"__nav_6_7" id=
"__nav_6_7_label" tabindex=
"0">
3346 <span class=
"md-ellipsis">
3347 From WoltLab Suite
3.0
3351 <span class=
"md-nav__icon md-icon"></span>
3354 <nav class=
"md-nav" data-md-level=
"2" aria-labelledby=
"__nav_6_7_label" aria-expanded=
"false">
3355 <label class=
"md-nav__title" for=
"__nav_6_7">
3356 <span class=
"md-nav__icon md-icon"></span>
3357 From WoltLab Suite
3.0
3359 <ul class=
"md-nav__list" data-md-scrollfix
>
3366 <li class=
"md-nav__item">
3367 <a href=
"../../wsc30/php/" class=
"md-nav__link">
3370 <span class=
"md-ellipsis">
3386 <li class=
"md-nav__item">
3387 <a href=
"../../wsc30/javascript/" class=
"md-nav__link">
3390 <span class=
"md-ellipsis">
3406 <li class=
"md-nav__item">
3407 <a href=
"../../wsc30/templates/" class=
"md-nav__link">
3410 <span class=
"md-ellipsis">
3426 <li class=
"md-nav__item">
3427 <a href=
"../../wsc30/css/" class=
"md-nav__link">
3430 <span class=
"md-ellipsis">
3446 <li class=
"md-nav__item">
3447 <a href=
"../../wsc30/package/" class=
"md-nav__link">
3450 <span class=
"md-ellipsis">
3479 <li class=
"md-nav__item md-nav__item--nested">
3484 <input class=
"md-nav__toggle md-toggle " type=
"checkbox" id=
"__nav_6_8" >
3487 <label class=
"md-nav__link" for=
"__nav_6_8" id=
"__nav_6_8_label" tabindex=
"0">
3490 <span class=
"md-ellipsis">
3495 <span class=
"md-nav__icon md-icon"></span>
3498 <nav class=
"md-nav" data-md-level=
"2" aria-labelledby=
"__nav_6_8_label" aria-expanded=
"false">
3499 <label class=
"md-nav__title" for=
"__nav_6_8">
3500 <span class=
"md-nav__icon md-icon"></span>
3503 <ul class=
"md-nav__list" data-md-scrollfix
>
3510 <li class=
"md-nav__item">
3511 <a href=
"../../wcf21/php/" class=
"md-nav__link">
3514 <span class=
"md-ellipsis">
3530 <li class=
"md-nav__item">
3531 <a href=
"../../wcf21/templates/" class=
"md-nav__link">
3534 <span class=
"md-ellipsis">
3550 <li class=
"md-nav__item">
3551 <a href=
"../../wcf21/css/" class=
"md-nav__link">
3554 <span class=
"md-ellipsis">
3570 <li class=
"md-nav__item">
3571 <a href=
"../../wcf21/package/" class=
"md-nav__link">
3574 <span class=
"md-ellipsis">
3610 <li class=
"md-nav__item md-nav__item--nested">
3615 <input class=
"md-nav__toggle md-toggle " type=
"checkbox" id=
"__nav_7" >
3618 <label class=
"md-nav__link" for=
"__nav_7" id=
"__nav_7_label" tabindex=
"0">
3621 <span class=
"md-ellipsis">
3626 <span class=
"md-nav__icon md-icon"></span>
3629 <nav class=
"md-nav" data-md-level=
"1" aria-labelledby=
"__nav_7_label" aria-expanded=
"false">
3630 <label class=
"md-nav__title" for=
"__nav_7">
3631 <span class=
"md-nav__icon md-icon"></span>
3634 <ul class=
"md-nav__list" data-md-scrollfix
>
3646 <li class=
"md-nav__item md-nav__item--nested">
3651 <input class=
"md-nav__toggle md-toggle " type=
"checkbox" id=
"__nav_7_1" >
3654 <label class=
"md-nav__link" for=
"__nav_7_1" id=
"__nav_7_1_label" tabindex=
"0">
3657 <span class=
"md-ellipsis">
3662 <span class=
"md-nav__icon md-icon"></span>
3665 <nav class=
"md-nav" data-md-level=
"2" aria-labelledby=
"__nav_7_1_label" aria-expanded=
"false">
3666 <label class=
"md-nav__title" for=
"__nav_7_1">
3667 <span class=
"md-nav__icon md-icon"></span>
3670 <ul class=
"md-nav__list" data-md-scrollfix
>
3677 <li class=
"md-nav__item">
3678 <a href=
"../../../tutorial/series/overview/" class=
"md-nav__link">
3681 <span class=
"md-ellipsis">
3697 <li class=
"md-nav__item">
3698 <a href=
"../../../tutorial/series/part_1/" class=
"md-nav__link">
3701 <span class=
"md-ellipsis">
3717 <li class=
"md-nav__item">
3718 <a href=
"../../../tutorial/series/part_2/" class=
"md-nav__link">
3721 <span class=
"md-ellipsis">
3737 <li class=
"md-nav__item">
3738 <a href=
"../../../tutorial/series/part_3/" class=
"md-nav__link">
3741 <span class=
"md-ellipsis">
3757 <li class=
"md-nav__item">
3758 <a href=
"../../../tutorial/series/part_4/" class=
"md-nav__link">
3761 <span class=
"md-ellipsis">
3777 <li class=
"md-nav__item">
3778 <a href=
"../../../tutorial/series/part_5/" class=
"md-nav__link">
3781 <span class=
"md-ellipsis">
3797 <li class=
"md-nav__item">
3798 <a href=
"../../../tutorial/series/part_6/" class=
"md-nav__link">
3801 <span class=
"md-ellipsis">
3835 <div class=
"md-sidebar md-sidebar--secondary" data-md-component=
"sidebar" data-md-type=
"toc" >
3836 <div class=
"md-sidebar__scrollwrap">
3837 <div class=
"md-sidebar__inner">
3840 <nav class=
"md-nav md-nav--secondary" aria-label=
"Table of contents">
3847 <label class=
"md-nav__title" for=
"__toc">
3848 <span class=
"md-nav__icon md-icon"></span>
3851 <ul class=
"md-nav__list" data-md-component=
"toc" data-md-scrollfix
>
3853 <li class=
"md-nav__item">
3854 <a href=
"#summary-and-concepts" class=
"md-nav__link">
3855 Summary and Concepts
3858 <nav class=
"md-nav" aria-label=
"Summary and Concepts">
3859 <ul class=
"md-nav__list">
3861 <li class=
"md-nav__item">
3862 <a href=
"#legacy-persistent-login" class=
"md-nav__link">
3863 Legacy Persistent Login
3868 <li class=
"md-nav__item">
3869 <a href=
"#multiple-sessions" class=
"md-nav__link">
3875 <li class=
"md-nav__item">
3876 <a href=
"#merged-acp-and-frontend-sessions" class=
"md-nav__link">
3877 Merged ACP and Frontend Sessions
3882 <li class=
"md-nav__item">
3883 <a href=
"#improved-authentication-and-reauthentication" class=
"md-nav__link">
3884 Improved Authentication and Reauthentication
3894 <li class=
"md-nav__item">
3895 <a href=
"#additions-and-changes" class=
"md-nav__link">
3896 Additions and Changes
3899 <nav class=
"md-nav" aria-label=
"Additions and Changes">
3900 <ul class=
"md-nav__list">
3902 <li class=
"md-nav__item">
3903 <a href=
"#password-hashing" class=
"md-nav__link">
3909 <li class=
"md-nav__item">
3910 <a href=
"#session-storage" class=
"md-nav__link">
3916 <li class=
"md-nav__item">
3917 <a href=
"#reauthentication" class=
"md-nav__link">
3923 <li class=
"md-nav__item">
3924 <a href=
"#multi-factor-authentication" class=
"md-nav__link">
3925 Multi-factor Authentication
3928 <nav class=
"md-nav" aria-label=
"Multi-factor Authentication">
3929 <ul class=
"md-nav__list">
3931 <li class=
"md-nav__item">
3932 <a href=
"#adding-multi-factor-methods" class=
"md-nav__link">
3933 Adding Multi-factor Methods
3938 <li class=
"md-nav__item">
3939 <a href=
"#enforcing-multi-factor-authentication" class=
"md-nav__link">
3940 Enforcing Multi-factor Authentication
3955 <li class=
"md-nav__item">
3956 <a href=
"#deprecations-and-removals" class=
"md-nav__link">
3957 Deprecations and Removals
3960 <nav class=
"md-nav" aria-label=
"Deprecations and Removals">
3961 <ul class=
"md-nav__list">
3963 <li class=
"md-nav__item">
3964 <a href=
"#sessionhandler" class=
"md-nav__link">
3970 <li class=
"md-nav__item">
3971 <a href=
"#acp-sessions" class=
"md-nav__link">
3977 <li class=
"md-nav__item">
3978 <a href=
"#cookies" class=
"md-nav__link">
3984 <li class=
"md-nav__item">
3985 <a href=
"#virtual-sessions" class=
"md-nav__link">
3991 <li class=
"md-nav__item">
3992 <a href=
"#security-token-constants" class=
"md-nav__link">
3993 Security Token Constants
3998 <li class=
"md-nav__item">
3999 <a href=
"#passwordutil-and-double-bcrypt-hashes" class=
"md-nav__link">
4000 PasswordUtil and Double BCrypt Hashes
4019 <div class=
"md-content" data-md-component=
"content">
4020 <article class=
"md-content__inner md-typeset">
4028 <h1 id=
"migrating-from-woltlab-suite-53-session-handling-and-authentication">Migrating from WoltLab Suite
5.3 - Session Handling and Authentication
<a class=
"headerlink" href=
"#migrating-from-woltlab-suite-53-session-handling-and-authentication" title=
"Permanent link">#
</a></h1>
4029 <p>WoltLab Suite
5.4 includes a completely refactored session handling.
4030 As long as you only interact with sessions via
<code>WCF::getSession()
</code>, especially when you perform read-only accesses, you should not notice any breaking changes.
</p>
4031 <p>You might appreciate some of the new session methods if you process security sensitive data.
</p>
4032 <h2 id=
"summary-and-concepts">Summary and Concepts
<a class=
"headerlink" href=
"#summary-and-concepts" title=
"Permanent link">#
</a></h2>
4033 <p>Most of the changes revolve around the removal of the legacy persistent login functionality and the assumption that every user has a single session only.
4034 Both aspects are related to each other.
</p>
4035 <h3 id=
"legacy-persistent-login">Legacy Persistent Login
<a class=
"headerlink" href=
"#legacy-persistent-login" title=
"Permanent link">#
</a></h3>
4036 <p>The legacy persistent login was rather an automated login.
4037 Upon bootstrapping a session, it was checked whether the user had a cookie pair storing the user’s
<code>userID
</code> and (a single BCrypt hash of) the user’s password.
4038 If such a cookie pair exists and the BCrypt hash within the cookie matches the user’s password hash when hashed again, the session would immediately
<code>changeUser()
</code> to the respective user.
</p>
4039 <p>This legacy persistent login was completely removed.
4040 Instead, any sessions that belong to an authenticated user will automatically be long-lived.
4041 These long-lived sessions expire no sooner than
14 days after the last activity, ensuring that the user continously stays logged in, provided that they visit the page at least once per fortnight.
</p>
4042 <h3 id=
"multiple-sessions">Multiple Sessions
<a class=
"headerlink" href=
"#multiple-sessions" title=
"Permanent link">#
</a></h3>
4043 <p>To allow for a proper separation of these long-lived user sessions, WoltLab Suite now allows for multiple sessions per user.
4044 These sessions are completely unrelated to each other.
4045 Specifically, they do not share session variables and they expire independently.
</p>
4046 <p>As the existing
<code>wcf1_session
</code> table is also used for the online lists and location tracking, it will be maintained on a best effort basis.
4047 It no longer stores any private session data.
</p>
4048 <p>The actual sessions storing security sensitive information are in an unrelated location.
4049 They must only be accessed via the PHP API exposed by the
<code>SessionHandler
</code>.
</p>
4050 <h3 id=
"merged-acp-and-frontend-sessions">Merged ACP and Frontend Sessions
<a class=
"headerlink" href=
"#merged-acp-and-frontend-sessions" title=
"Permanent link">#
</a></h3>
4051 <p>WoltLab Suite
5.4 shares a single session across both the frontend, as well as the ACP.
4052 When a user logs in to the frontend, they will also be logged into the ACP and vice versa.
</p>
4053 <p>Actual access to the ACP is controlled via the new
<a href=
"#reauthentication">reauthentication mechanism
</a>.
</p>
4054 <p>The session variable store is scoped:
4055 Session variables set within the frontend are not available within the ACP and vice versa.
</p>
4056 <h3 id=
"improved-authentication-and-reauthentication">Improved Authentication and Reauthentication
<a class=
"headerlink" href=
"#improved-authentication-and-reauthentication" title=
"Permanent link">#
</a></h3>
4057 <p>WoltLab Suite
5.4 ships with multi-factor authentication support and a generic re-authentication implementation that can be used to verify the account owner’s presence.
</p>
4058 <h2 id=
"additions-and-changes">Additions and Changes
<a class=
"headerlink" href=
"#additions-and-changes" title=
"Permanent link">#
</a></h2>
4059 <h3 id=
"password-hashing">Password Hashing
<a class=
"headerlink" href=
"#password-hashing" title=
"Permanent link">#
</a></h3>
4060 <p>WoltLab Suite
5.4 includes a new object-oriented password hashing framework that is modeled after PHP’s
<code>password_*
</code> API.
4061 Check
<a href=
"https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/user/authentication/password/PasswordAlgorithmManager.class.php"><code>PasswordAlgorithmManager
</code></a> and
<a href=
"https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/user/authentication/password/IPasswordAlgorithm.class.php"><code>IPasswordAlgorithm
</code></a> for details.
</p>
4062 <p>The new default password hash is a standard BCrypt hash.
4063 All newly generated hashes in
<code>wcf1_user.password
</code> will now include a type prefix, instead of just passwords imported from other systems.
</p>
4064 <h3 id=
"session-storage">Session Storage
<a class=
"headerlink" href=
"#session-storage" title=
"Permanent link">#
</a></h3>
4065 <p>The
<code>wcf1_session
</code> table will no longer be used for session storage.
4066 Instead, it is maintained for compatibility with existing online lists.
</p>
4067 <p>The actual session storage is considered an implementation detail and you
<em>must not
</em> directly interact with the session tables.
4068 Future versions might support alternative session backends, such as Redis.
</p>
4069 <div class=
"admonition warning">
4070 <p class=
"admonition-title">Do not interact directly with the session database tables but only via the
<code>SessionHandler
</code> class!
</p>
4072 <h3 id=
"reauthentication">Reauthentication
<a class=
"headerlink" href=
"#reauthentication" title=
"Permanent link">#
</a></h3>
4073 <p>For security sensitive processing, you might want to ensure that the account owner is actually present instead of a third party accessing a session that was accidentally left logged in.
</p>
4074 <p>WoltLab Suite
5.4 ships with a generic reauthentication framework.
4075 To request reauthentication within your controller you need to:
</p>
4077 <li>Use the
<code>wcf\system\user\authentication\TReauthenticationCheck
</code> trait.
</li>
4079 <div class=
"highlight"><table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
4080 <span class=
"normal">2</span>
4081 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div><pre><span></span><code><span class=
"nv">$this
</span><span class=
"o">-
></span><span class=
"na">requestReauthentication
</span><span class=
"p">(
</span><span class=
"nx">LinkHandler
</span><span class=
"o">::
</span><span class=
"na">getInstance
</span><span class=
"p">()
</span><span class=
"o">-
></span><span class=
"na">getControllerLink
</span><span class=
"p">(
</span><span class=
"k">static
</span><span class=
"o">::
</span><span class=
"na">class
</span><span class=
"p">,
</span> <span class=
"p">[
</span>
4082 <span class=
"cm">/* additional parameters */
</span>
4083 <span class=
"p">]));
</span>
4084 </code></pre></div></td></tr></table></div></li>
4086 <p><code>requestReauthentication()
</code> will check if the user has recently authenticated themselves.
4087 If they did, the request proceeds as usual.
4088 Otherwise, they will be asked to reauthenticate themselves.
4089 After the successful authentication, they will be redirected to the URL that was passed as the first parameter (the current controller within the example).
</p>
4090 <p>Details can be found in
<a href=
"https://github.com/WoltLab/WCF/pull/3775">WoltLab/WCF#
3775</a>.
</p>
4091 <h3 id=
"multi-factor-authentication">Multi-factor Authentication
<a class=
"headerlink" href=
"#multi-factor-authentication" title=
"Permanent link">#
</a></h3>
4092 <p>To implement multi-factor authentication securely, WoltLab Suite
5.4 implements the concept of a “pending user change”.
4093 The user will not be logged in (i.e.
<code>WCF::getUser()-
>userID
</code> returns
<code>null
</code>) until they authenticate themselves with their second factor.
</p>
4094 <p>Requesting multi-factor authentication is done on an opt-in basis for compatibility reasons.
4095 If you perform authentication yourself and do not trust the authentication source to perform multi-factor authentication itself, you will need to adjust your logic to request multi-factor authentication from WoltLab Suite:
</p>
4097 <div class=
"highlight"><table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span></pre></div></td><td class=
"code"><div><pre><span></span><code><span class=
"nx">WCF
</span><span class=
"o">::
</span><span class=
"na">getSession
</span><span class=
"p">()
</span><span class=
"o">-
></span><span class=
"na">changeUser
</span><span class=
"p">(
</span><span class=
"nv">$targetUser
</span><span class=
"p">);
</span>
4098 </code></pre></div></td></tr></table></div>
4100 <div class=
"highlight"><table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal"> 1</span>
4101 <span class=
"normal"> 2</span>
4102 <span class=
"normal"> 3</span>
4103 <span class=
"normal"> 4</span>
4104 <span class=
"normal"> 5</span>
4105 <span class=
"normal"> 6</span>
4106 <span class=
"normal"> 7</span>
4107 <span class=
"normal"> 8</span>
4108 <span class=
"normal"> 9</span>
4109 <span class=
"normal">10</span></pre></div></td><td class=
"code"><div><pre><span></span><code><span class=
"nv">$isPending
</span> <span class=
"o">=
</span> <span class=
"nx">WCF
</span><span class=
"o">::
</span><span class=
"na">getSession
</span><span class=
"p">()
</span><span class=
"o">-
></span><span class=
"na">changeUserAfterMultifactorAuthentication
</span><span class=
"p">(
</span><span class=
"nv">$targetUser
</span><span class=
"p">);
</span>
4110 <span class=
"k">if
</span> <span class=
"p">(
</span><span class=
"nv">$isPending
</span><span class=
"p">)
</span> <span class=
"p">{
</span>
4111 <span class=
"c1">// Redirect to the authentication form. The user will not be logged in.
</span>
4112 <span class=
"c1">// Note: Do not use `getControllerLink` to support both the frontend as well as the ACP.
</span>
4113 <span class=
"nx">HeaderUtil
</span><span class=
"o">::
</span><span class=
"na">redirect
</span><span class=
"p">(
</span><span class=
"nx">LinkHandler
</span><span class=
"o">::
</span><span class=
"na">getInstance
</span><span class=
"p">()
</span><span class=
"o">-
></span><span class=
"na">getLink
</span><span class=
"p">(
</span><span class=
"s1">'MultifactorAuthentication
'</span><span class=
"p">,
</span> <span class=
"p">[
</span>
4114 <span class=
"s1">'url
'</span> <span class=
"o">=
></span> <span class=
"cm">/* Return To */
</span><span class=
"p">,
</span>
4115 <span class=
"p">]));
</span>
4116 <span class=
"k">exit
</span><span class=
"p">;
</span>
4117 <span class=
"p">}
</span>
4118 <span class=
"c1">// Proceed as usual. The user will be logged in.
</span>
4119 </code></pre></div></td></tr></table></div>
4120 <h4 id=
"adding-multi-factor-methods">Adding Multi-factor Methods
<a class=
"headerlink" href=
"#adding-multi-factor-methods" title=
"Permanent link">#
</a></h4>
4121 <p>Adding your own multi-factor method requires the implementation of a single object type:
</p>
4122 <div class=
"highlight"><table class=
"highlighttable"><tr><th colspan=
"2" class=
"filename"><span class=
"filename">objectType.xml
</span></th></tr><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
4123 <span class=
"normal">2</span>
4124 <span class=
"normal">3</span>
4125 <span class=
"normal">4</span>
4126 <span class=
"normal">5</span>
4127 <span class=
"normal">6</span>
4128 <span class=
"normal">7</span></pre></div></td><td class=
"code"><div><pre><span></span><code><span class=
"nt"><type
></span>
4129 <span class=
"w"> </span><span class=
"nt"><name
></span>com.example.multifactor.foobar
<span class=
"nt"></name
></span>
4130 <span class=
"w"> </span><span class=
"nt"><definitionname
></span>com.woltlab.wcf.multifactor
<span class=
"nt"></definitionname
></span>
4131 <span class=
"w"> </span><span class=
"nt"><icon
></span><span class=
"cm"><!-- Font Awesome
4 Icon Name goes here. --
></span><span class=
"nt"></icon
></span>
4132 <span class=
"w"> </span><span class=
"nt"><priority
></span><span class=
"cm"><!-- Determines the sort order, higher priority will be preferred for authentication. --
></span><span class=
"nt"></priority
></span>
4133 <span class=
"w"> </span><span class=
"nt"><classname
></span>wcf\system\user\multifactor\FoobarMultifactorMethod
<span class=
"nt"></classname
></span>
4134 <span class=
"nt"></type
></span>
4135 </code></pre></div></td></tr></table></div>
4136 <p>The given classname must implement the
<a href=
"https://github.com/WoltLab/WCF/blob/master/wcfsetup/install/files/lib/system/user/multifactor/IMultifactorMethod.class.php"><code>IMultifactorMethod
</code></a> interface.
</p>
4137 <p>As a self-contained example, you can find the initial implementation of the email multi-factor method in
<a href=
"https://github.com/WoltLab/WCF/pull/3729">WoltLab/WCF#
3729</a>.
4138 Please check
<a href=
"https://github.com/WoltLab/WCF/commits/master/wcfsetup/install/files/lib/system/user/multifactor/EmailMultifactorMethod.class.php">the version history
</a> of the PHP class to make sure you do not miss important changes that were added later.
</p>
4139 <div class=
"admonition warning">
4140 <p class=
"admonition-title">Multi-factor authentication is security sensitive. Make sure to carefully read the remarks in
<code>IMultifactorMethod
</code> for possible issues. Also make sure to carefully test your implementation against all sorts of incorrect input and consider attack vectors such as race conditions. It is strongly recommended to generously check the current state by leveraging assertions and exceptions.
</p>
4142 <h4 id=
"enforcing-multi-factor-authentication">Enforcing Multi-factor Authentication
<a class=
"headerlink" href=
"#enforcing-multi-factor-authentication" title=
"Permanent link">#
</a></h4>
4143 <p>To enforce Multi-factor Authentication within your controller you need to:
</p>
4145 <li>Use the
<code>wcf\system\user\multifactor\TMultifactorRequirementEnforcer
</code> trait.
</li>
4146 <li>Call:
<code>$this-
>enforceMultifactorAuthentication();
</code></li>
4148 <p><code>enforceMultifactorAuthentication()
</code> will check if the user is in a group that requires multi-factor authentication, but does not yet have multi-factor authentication enabled.
4149 If they did, the request proceeds as usual.
4150 Otherwise, a
<code>NamedUserException
</code> is thrown.
</p>
4151 <h2 id=
"deprecations-and-removals">Deprecations and Removals
<a class=
"headerlink" href=
"#deprecations-and-removals" title=
"Permanent link">#
</a></h2>
4152 <h3 id=
"sessionhandler">SessionHandler
<a class=
"headerlink" href=
"#sessionhandler" title=
"Permanent link">#
</a></h3>
4153 <p>Most of the changes with regard to the new session handling happened in
<code>SessionHandler
</code>.
4154 Most notably,
<code>SessionHandler
</code> now is marked
<code>final
</code> to ensure proper encapsulation of data.
</p>
4155 <p>A number of methods in
<code>SessionHandler
</code> are now deprecated and result in a noop.
4156 This change mostly affects methods that have been used to bootstrap the session, such as
<code>setHasValidCookie()
</code>.
</p>
4157 <p>Additionally, accessing the following keys on the session is deprecated.
4158 They directly map to an existing method in another class and any uses can easily be updated:
4159 -
<code>ipAddress
</code>
4160 -
<code>userAgent
</code>
4161 -
<code>requestURI
</code>
4162 -
<code>requestMethod
</code>
4163 -
<code>lastActivityTime
</code></p>
4164 <p>Refer to
<a href=
"https://github.com/WoltLab/WCF/blob/439de4963c947c3569a0c584f795245f693155b0/wcfsetup/install/files/lib/system/session/SessionHandler.class.php#L168-L178">the implementation
</a> for details.
</p>
4165 <h3 id=
"acp-sessions">ACP Sessions
<a class=
"headerlink" href=
"#acp-sessions" title=
"Permanent link">#
</a></h3>
4166 <p>The database tables related to ACP sessions have been removed.
4167 The PHP classes have been preserved due to being used within the class hierarchy of the legacy sessions.
</p>
4168 <h3 id=
"cookies">Cookies
<a class=
"headerlink" href=
"#cookies" title=
"Permanent link">#
</a></h3>
4169 <p>The
<code>_userID
</code>,
<code>_password
</code>,
<code>_cookieHash
</code> and
<code>_cookieHash_acp
</code> cookies will no longer be created nor consumed.
</p>
4170 <h3 id=
"virtual-sessions">Virtual Sessions
<a class=
"headerlink" href=
"#virtual-sessions" title=
"Permanent link">#
</a></h3>
4171 <p>The virtual session logic existed to support multiple devices per single session in
<code>wcf1_session
</code>.
4172 Virtual sessions are no longer required with the refactored session handling.
</p>
4173 <p>Anything related to virtual sessions has been completely removed as they are considered an implementation detail.
4174 This removal includes PHP classes and database tables.
</p>
4175 <h3 id=
"security-token-constants">Security Token Constants
<a class=
"headerlink" href=
"#security-token-constants" title=
"Permanent link">#
</a></h3>
4176 <p>The security token constants are deprecated.
4177 Instead, the methods of
<code>SessionHandler
</code> should be used (e.g.
<code>-
>getSecurityToken()
</code>).
4178 Within templates, you should migrate to the
<code>{csrfToken}
</code> tag in place of
<code>{@SECURITY_TOKEN_INPUT_TAG}
</code>.
4179 The
<code>{csrfToken}
</code> tag is a drop-in replacement and was backported to WoltLab Suite
5.2+, allowing you to maintain compatibility across a broad range of versions.
</p>
4180 <h3 id=
"passwordutil-and-double-bcrypt-hashes">PasswordUtil and Double BCrypt Hashes
<a class=
"headerlink" href=
"#passwordutil-and-double-bcrypt-hashes" title=
"Permanent link">#
</a></h3>
4181 <p>Most of the methods in PasswordUtil are deprecated in favor of the new password hashing framework.
</p>
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