package Ġnl . kr ash na . app . controllers Ċ Ċ import Ġnl . kr ash na . app . models . User Ċ import Ġnl . kr ash na . app . models . User Authority Ċ import Ġnl . kr ash na . app . models . UserRepository Ċ import Ġorg . springframework . data . rest . web mvc . Resource NotFoundException Ċ import Ġorg . springframework . security . core . context . SecurityContext Holder Ċ import Ġorg . springframework . security . crypto . bcrypt . BC rypt Password Encoder Ċ import Ġorg . springframework . web . bind . annotation . GetMapping Ċ import Ġorg . springframework . web . bind . annotation . PostMapping Ċ import Ġorg . springframework . web . bind . annotation . RequestBody Ċ import Ġorg . springframework . web . bind . annotation . RequestMapping Ċ import Ġorg . springframework . web . bind . annotation . RestController Ċ Ċ @ RestController Ċ @ RequestMapping ("/ api / auth ") Ċ class ĠUser Authentication Controller ( ĊĠĠĠ Ġprivate Ġval Ġuser Repository : ĠUser Repository , ĊĠĠĠ Ġprivate Ġval Ġb Crypt Password Encoder : ĠBC rypt Password Encoder Ċ ) Ġ{ ĊĠĠĠ Ġ@ PostMapping ("/ register ") ĊĠĠĠ Ġfun Ġsign Up (@ RequestBody Ġuser : ĠUser ) Ġ{ ĊĠĠĠĠĠĠĠ Ġif Ġ( user Repository . findBy Email ( user . email ) Ġ!= Ġnull ) Ġ{ ĊĠĠĠĠĠĠĠĠĠĠĠ Ġthrow ĠDuplicate Resource Exception () ĊĠĠĠĠĠĠĠ Ġ} ĊĊĠĠĠĠĠĠĠ Ġuser . password Ġ= Ġb Crypt Password Encoder . encode ( user . password ) ĊĠĠĠĠĠĠĠ Ġuser . author ities Ġ= ĠlistOf ( User Authority (" USER ")) ĊĠĠĠĠĠĠĠ Ġuser Repository . save ( user ) ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġ@ GetMapping ("/ current - user ") ĊĠĠĠ Ġfun ĠcurrentUser (): ĠUser Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġemail Ġ= ĠSecurity Context Holder . getContext (). authentication . principal Ġas ĠString ĊĠĠĠĠĠĠĠ Ġreturn Ġuser Repository . findBy Email ( email ) Ġ?: Ġthrow ĠResource NotFoundException () ĊĠĠĠ Ġ} ĊĊĠĠĠ Ġ@ PostMapping ("/ update - password ") ĊĠĠĠ Ġfun Ġupdate Password (@ RequestBody Ġrequest : ĠPassword Update Request ) Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġemail Ġ= ĠSecurity Context Holder . getContext (). authentication . principal Ġas ĠString ĊĠĠĠĠĠĠĠ Ġval Ġuser Ġ= Ġuser Repository . findBy Email ( email ) Ġ?: Ġthrow ĠResource NotFoundException () ĊĠĠĠĠĠĠĠ Ġuser . password Ġ= Ġb Crypt Password Encoder . encode ( request . password ) ĊĠĠĠĠĠĠĠ Ġuser Repository . save ( user ) ĊĠĠĠ Ġ} Ċ } Ċ Ċ data Ġclass ĠPassword Update Request ( val Ġpassword : ĠString ) Ċ