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https://github.com/PeernetOfficial/core.git
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Moving File API code into separate file
This commit is contained in:
Kleissner
@@ -10,10 +10,8 @@ import (
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"encoding/hex"
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"net/http"
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"strconv"
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"time"
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"github.com/PeernetOfficial/core"
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"github.com/google/uuid"
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)
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const dateFormat = "2006-01-02 15:04:05"
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@@ -86,32 +84,6 @@ type apiBlockchainBlock struct {
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RecordsDecoded []interface{} `json:"recordsdecoded"` // Records decoded. The encoding for each record depends on its type.
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}
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// apiFileMetadata contains metadata information.
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type apiFileMetadata struct {
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Type uint16 `json:"type"` // See core.TagX constants.
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Name string `json:"name"` // User friendly name of the metadata type. Use the Type fields to identify the metadata as this name may change.
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// Depending on the exact type, one of the below fields is used for proper encoding:
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Text string `json:"text"` // Text value. UTF-8 encoding.
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Blob []byte `json:"blob"` // Binary data
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Date time.Time `json:"date"` // Date
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Number uint64 `json:"number"` // Number
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}
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// apiBlockRecordFile is the metadata of a file published on the blockchain
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type apiBlockRecordFile struct {
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ID uuid.UUID `json:"id"` // Unique ID.
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Hash []byte `json:"hash"` // Blake3 hash of the file data
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Type uint8 `json:"type"` // File Type. For example audio or document. See TypeX.
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Format uint16 `json:"format"` // File Format. This is more granular, for example PDF or Word file. See FormatX.
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Size uint64 `json:"size"` // Size of the file
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Folder string `json:"folder"` // Folder, optional
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Name string `json:"name"` // Name of the file
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Description string `json:"description"` // Description. This is expected to be multiline and contain hashtags!
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Date time.Time `json:"date"` // Date shared
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NodeID []byte `json:"nodeid"` // Node ID, owner of the file
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Metadata []apiFileMetadata `json:"metadata"` // Additional metadata.
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}
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/*
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apiBlockchainSelfRead reads a block and returns the decoded information.
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@@ -150,148 +122,3 @@ func apiBlockchainSelfRead(w http.ResponseWriter, r *http.Request) {
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EncodeJSON(w, r, result)
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}
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// apiBlockAddFiles contains the file metadata to add to the blockchain
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type apiBlockAddFiles struct {
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Files []apiBlockRecordFile `json:"files"` // List of files
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Status int `json:"status"` // Status of the operation, only used when this structure is returned from the API.
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}
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/*
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apiBlockchainSelfAddFile adds a file with the provided information to the blockchain.
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Request: POST /blockchain/self/add/file with JSON structure apiBlockAddFiles
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Response: 200 with JSON structure apiBlockchainBlockStatus
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*/
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func apiBlockchainSelfAddFile(w http.ResponseWriter, r *http.Request) {
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var input apiBlockAddFiles
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if err := DecodeJSON(w, r, &input); err != nil {
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return
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}
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var filesAdd []core.BlockRecordFile
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for _, file := range input.Files {
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if file.ID == uuid.Nil { // if the ID is not provided by the caller, set it
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file.ID = uuid.New()
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}
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filesAdd = append(filesAdd, blockRecordFileFromAPI(file))
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}
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newHeight, newVersion, status := core.UserBlockchainAddFiles(filesAdd)
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EncodeJSON(w, r, apiBlockchainBlockStatus{Status: status, Height: newHeight, Version: newVersion})
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}
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/*
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apiBlockchainSelfListFile lists all files stored on the blockchain.
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Request: GET /blockchain/self/list/file
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Response: 200 with JSON structure apiBlockAddFiles
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*/
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func apiBlockchainSelfListFile(w http.ResponseWriter, r *http.Request) {
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files, status := core.UserBlockchainListFiles()
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var result apiBlockAddFiles
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for _, file := range files {
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result.Files = append(result.Files, blockRecordFileToAPI(file))
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}
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result.Status = status
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EncodeJSON(w, r, result)
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}
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/*
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apiBlockchainSelfDeleteFile deletes files with the provided IDs. Other fields are ignored.
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Request: POST /blockchain/self/delete/file with JSON structure apiBlockAddFiles
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Response: 200 with JSON structure apiBlockchainBlockStatus
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*/
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func apiBlockchainSelfDeleteFile(w http.ResponseWriter, r *http.Request) {
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var input apiBlockAddFiles
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if err := DecodeJSON(w, r, &input); err != nil {
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return
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}
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var deleteIDs []uuid.UUID
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for n := range input.Files {
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deleteIDs = append(deleteIDs, input.Files[n].ID)
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}
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newHeight, newVersion, status := core.UserBlockchainDeleteFiles(deleteIDs)
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EncodeJSON(w, r, apiBlockchainBlockStatus{Status: status, Height: newHeight, Version: newVersion})
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}
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// --- conversion from core to API data ---
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func blockRecordFileToAPI(input core.BlockRecordFile) (output apiBlockRecordFile) {
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output = apiBlockRecordFile{ID: input.ID, Hash: input.Hash, NodeID: input.NodeID, Type: input.Type, Format: input.Format, Size: input.Size, Metadata: []apiFileMetadata{}}
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for _, tag := range input.Tags {
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switch tag.Type {
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case core.TagName:
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output.Name = tag.Text()
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case core.TagFolder:
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output.Folder = tag.Text()
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case core.TagDescription:
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output.Description = tag.Text()
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case core.TagDateShared:
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output.Date, _ = tag.Date()
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case core.TagDateCreated:
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date, _ := tag.Date()
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output.Metadata = append(output.Metadata, apiFileMetadata{Type: tag.Type, Name: "Date Created", Date: date})
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case core.TagSharedByCount:
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output.Metadata = append(output.Metadata, apiFileMetadata{Type: tag.Type, Name: "Shared By Count", Number: tag.Number()})
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case core.TagSharedByGeoIP:
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output.Metadata = append(output.Metadata, apiFileMetadata{Type: tag.Type, Name: "Shared By GeoIP", Text: tag.Text()})
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default:
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output.Metadata = append(output.Metadata, apiFileMetadata{Type: tag.Type, Blob: tag.Data})
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}
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}
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return output
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}
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func blockRecordFileFromAPI(input apiBlockRecordFile) (output core.BlockRecordFile) {
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output = core.BlockRecordFile{ID: input.ID, Hash: input.Hash, Type: input.Type, Format: input.Format, Size: input.Size}
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if input.Name != "" {
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output.Tags = append(output.Tags, core.TagFromText(core.TagName, input.Name))
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}
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if input.Folder != "" {
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output.Tags = append(output.Tags, core.TagFromText(core.TagFolder, input.Folder))
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}
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if input.Description != "" {
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output.Tags = append(output.Tags, core.TagFromText(core.TagDescription, input.Description))
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}
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for _, meta := range input.Metadata {
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if core.IsTagVirtual(meta.Type) { // Virtual tags are not mapped back. They are read-only.
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continue
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}
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switch meta.Type {
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case core.TagName, core.TagFolder, core.TagDescription: // auto mapped tags
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case core.TagDateCreated:
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output.Tags = append(output.Tags, core.TagFromDate(meta.Type, meta.Date))
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default:
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output.Tags = append(output.Tags, core.BlockRecordFileTag{Type: meta.Type, Data: meta.Blob})
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}
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}
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return output
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}
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