pronounsfu/backend/routes/v1/user/flags.go

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package user
import (
"context"
"fmt"
"net/http"
"strings"
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"codeberg.org/pronounscc/pronouns.cc/backend/common"
"codeberg.org/pronounscc/pronouns.cc/backend/db"
"codeberg.org/pronounscc/pronouns.cc/backend/log"
"codeberg.org/pronounscc/pronouns.cc/backend/server"
"emperror.dev/errors"
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"github.com/go-chi/chi/v5"
"github.com/go-chi/render"
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"github.com/rs/xid"
)
func (s *Server) getUserFlags(w http.ResponseWriter, r *http.Request) error {
ctx := r.Context()
claims, _ := server.ClaimsFromContext(ctx)
flags, err := s.DB.AccountFlags(ctx, claims.UserID)
if err != nil {
return errors.Wrapf(err, "getting flags for account %v", claims.UserID)
}
render.JSON(w, r, flags)
return nil
}
type postUserFlagRequest struct {
Flag string `json:"flag"`
Name string `json:"name"`
Description string `json:"description"`
}
func (s *Server) postUserFlag(w http.ResponseWriter, r *http.Request) error {
ctx := r.Context()
claims, _ := server.ClaimsFromContext(ctx)
if !claims.TokenWrite {
return server.APIError{Code: server.ErrMissingPermissions, Details: "This token is read-only"}
}
flags, err := s.DB.AccountFlags(ctx, claims.UserID)
if err != nil {
return errors.Wrap(err, "getting current user flags")
}
if len(flags) >= db.MaxPrideFlags {
return server.APIError{
Code: server.ErrFlagLimitReached,
}
}
var req postUserFlagRequest
err = render.Decode(r, &req)
if err != nil {
return server.APIError{Code: server.ErrBadRequest}
}
// remove whitespace from all fields
req.Name = strings.TrimSpace(req.Name)
req.Description = strings.TrimSpace(req.Description)
if s := common.StringLength(&req.Name); s > db.MaxPrideFlagTitleLength {
return server.APIError{
Code: server.ErrBadRequest,
Details: fmt.Sprintf("name too long, must be %v characters or less, is %v", db.MaxPrideFlagTitleLength, s),
}
}
if s := common.StringLength(&req.Description); s > db.MaxPrideFlagDescLength {
return server.APIError{
Code: server.ErrBadRequest,
Details: fmt.Sprintf("description too long, must be %v characters or less, is %v", db.MaxPrideFlagDescLength, s),
}
}
tx, err := s.DB.Begin(ctx)
if err != nil {
return errors.Wrap(err, "starting transaction")
}
defer tx.Rollback(ctx)
flag, err := s.DB.CreateFlag(ctx, tx, claims.UserID, req.Name, req.Description)
if err != nil {
log.Errorf("creating flag: %v", err)
return errors.Wrap(err, "creating flag")
}
webp, err := s.DB.ConvertFlag(req.Flag)
if err != nil {
if err == db.ErrInvalidDataURI {
return server.APIError{Code: server.ErrBadRequest, Message: "invalid data URI"}
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} else if err == db.ErrFileTooLarge {
return server.APIError{Code: server.ErrBadRequest, Message: "data URI exceeds 512 KB"}
}
return errors.Wrap(err, "converting flag")
}
hash, err := s.DB.WriteFlag(ctx, flag.ID, webp)
if err != nil {
return errors.Wrap(err, "writing flag")
}
flag, err = s.DB.EditFlag(ctx, tx, flag.ID, nil, nil, &hash)
if err != nil {
return errors.Wrap(err, "setting hash for flag")
}
err = tx.Commit(ctx)
if err != nil {
return errors.Wrap(err, "committing transaction")
}
render.JSON(w, r, flag)
return nil
}
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type patchUserFlagRequest struct {
Name *string `json:"name"`
Description *string `json:"description"`
}
func (s *Server) parseFlag(ctx context.Context, flags []db.PrideFlag, flagRef string) (db.PrideFlag, bool) {
if id, err := xid.FromString(flagRef); err == nil {
for _, f := range flags {
if f.ID == id {
return f, true
}
}
}
if id, err := common.ParseSnowflake(flagRef); err == nil {
for _, f := range flags {
if f.SnowflakeID == common.FlagID(id) {
return f, true
}
}
}
return db.PrideFlag{}, false
}
func (s *Server) patchUserFlag(w http.ResponseWriter, r *http.Request) error {
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ctx := r.Context()
claims, _ := server.ClaimsFromContext(ctx)
if !claims.TokenWrite {
return server.APIError{Code: server.ErrMissingPermissions, Details: "This token is read-only"}
}
flags, err := s.DB.AccountFlags(ctx, claims.UserID)
if err != nil {
return errors.Wrap(err, "getting current user flags")
}
flag, ok := s.parseFlag(ctx, flags, chi.URLParam(r, "flagID"))
if !ok {
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return server.APIError{Code: server.ErrNotFound, Details: "No flag with that ID found"}
}
var req patchUserFlagRequest
err = render.Decode(r, &req)
if err != nil {
return server.APIError{Code: server.ErrBadRequest}
}
if req.Name != nil {
*req.Name = strings.TrimSpace(*req.Name)
}
if req.Description != nil {
*req.Description = strings.TrimSpace(*req.Description)
}
if req.Name == nil && req.Description == nil {
return server.APIError{Code: server.ErrBadRequest, Details: "Request cannot be empty"}
}
if s := common.StringLength(req.Name); s > db.MaxPrideFlagTitleLength {
return server.APIError{
Code: server.ErrBadRequest,
Details: fmt.Sprintf("name too long, must be %v characters or less, is %v", db.MaxPrideFlagTitleLength, s),
}
}
if s := common.StringLength(req.Description); s > db.MaxPrideFlagDescLength {
return server.APIError{
Code: server.ErrBadRequest,
Details: fmt.Sprintf("description too long, must be %v characters or less, is %v", db.MaxPrideFlagDescLength, s),
}
}
tx, err := s.DB.Begin(ctx)
if err != nil {
return errors.Wrap(err, "beginning transaction")
}
defer tx.Rollback(ctx)
flag, err = s.DB.EditFlag(ctx, tx, flag.ID, req.Name, req.Description, nil)
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if err != nil {
return errors.Wrap(err, "updating flag")
}
err = tx.Commit(ctx)
if err != nil {
return errors.Wrap(err, "committing transaction")
}
render.JSON(w, r, flag)
return nil
}
func (s *Server) deleteUserFlag(w http.ResponseWriter, r *http.Request) error {
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ctx := r.Context()
claims, _ := server.ClaimsFromContext(ctx)
if !claims.TokenWrite {
return server.APIError{Code: server.ErrMissingPermissions, Details: "This token is read-only"}
}
flags, err := s.DB.AccountFlags(ctx, claims.UserID)
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if err != nil {
return errors.Wrap(err, "getting current user flags")
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}
flag, ok := s.parseFlag(ctx, flags, chi.URLParam(r, "flagID"))
if !ok {
return server.APIError{Code: server.ErrNotFound, Details: "No flag with that ID found"}
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}
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if flag.UserID != claims.UserID {
return server.APIError{Code: server.ErrNotFound, Details: "Flag not found"}
}
err = s.DB.DeleteFlag(ctx, flag.ID, flag.Hash)
if err != nil {
return errors.Wrap(err, "deleting flag")
}
render.NoContent(w, r)
return nil
}