Got so sick of SMS spam that I vibe coded a replacement app to intercept and screen messages, and in under 2 days it already caught 26 spam/political texts. I'm willing to give up RCS for this (Google doesn't allow third party RCS apps, sadly.) Google is apparently asleep at the wheel.
![88 +func(s *Server)handleCheckArtifactBlobs(w http.ResponseWriter,r *http.Request){
89 + a,err:=s.artifactFor(r);if err!=nil{writeError(w,err);return}
90 + var in struct{Hashes []string `json:"hashes"`};if err:=decodeJSON(r,&in);err!=nil{writeError(w,err);return}
91 + if len(in.Hashes)>artifact.MaxChunks{writeError(w,errValidation("too many hashes"));return}
92 + for _,h:=range in.Hashes{if !artifact.ValidDigest(h){writeError(w,errValidation("invalid sha256"));return}}
93 + missing,err:=s.store.MissingArtifactBlobs(r.Context(),a.UserID,in.Hashes);if err!=nil{writeError(w,err);return};writeJSON(w,200,map[string]any{"missing":missing})
94 +}
95 +
96 +func(s *Server)handlePutArtifactBlob(w http.ResponseWriter,r *http.Request){
97 + a,err:=s.artifactFor(r);if err!=nil{writeError(w,err);return}
98 + if err:=s.limitWrite(principalFrom(r.Context()),s.artifactLimiter);err!=nil{writeError(w,err);return}
99 + h:=r.PathValue("hash");if !artifact.ValidDigest(h){writeError(w,errValidation("invalid sha256"));return}
100 + raw,err:=io.ReadAll(io.LimitReader(r.Body,artifact.MaxBlobBytes+1));if err!=nil{writeError(w,errBadRequest("could not read blob"));return}
101 + if len(raw)>artifact.MaxBlobBytes{writeError(w,&apiError{Status:413,Code:"too_large",Message:"Artifact chunks are limited to 1 MiB."});return}
102 + if len(raw)==0 || artifact.Digest(raw)!=h{writeError(w,errValidation("blob is empty or does not match its sha256"));return}
103 + b,err:=s.store.ReserveArtifactBlob(r.Context(),a.UserID,a.ID,h,int64(len(raw)));if errors.Is(err,store.ErrUploadBusy){writeError(w,&apiError{Status:409,Code:"upload_in_progress",Message:"This chunk is being uploa
ded. Retry shortly.",RetryAfter:2});return};if errors.Is(err,store.ErrQuota){writeError(w,&apiError{Status:413,Code:"storage_quota",Message:err.Error()});return};if err!=nil{writeError(w,err);return}
104 + if b.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:fmtsrfgq7lafr7gvyr35ostn/bafkreidfnzgsdamcnxx2t4kw6pmjmr5gqt6t6uroeunotbunvtk6pqvus4)
