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package
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 Go to latest Published: Aug 9, 2022 License: ISC Imports: 1 Imported by: 8

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Index

Constants

View Source 
const (
	// APIRoute is prefixed onto all routes defined in this package.
	APIRoute = "/records/v1"

	// RoutePolicy returns the policy for the records API.
	RoutePolicy = "/policy"

	// RouteNew adds a new record.
	RouteNew = "/new"

	// RouteEdit edits a record.
	RouteEdit = "/edit"

	// RouteSetStatus sets the status of a record.
	RouteSetStatus = "/setstatus"

	// RouteDetails returns the details of a record.
	RouteDetails = "/details"

	// RouteTimestamps returns the timestamps of a record.
	RouteTimestamps = "/timestamps"

	// RouteRecords returns a batch of records.
	RouteRecords = "/records"

	// RouteInventory returns the tokens of the records in the inventory,
	// categorized by record state and record status.
	RouteInventory = "/inventory"

	// RouteInventoryOrdered returns a page of record tokens ordered by the
	// timestamp of their most recent status change from newest to oldest.
	RouteInventoryOrdered = "/inventoryordered"

	// RouteUserRecords returnes the tokens of all records submitted by a user.
	RouteUserRecords = "/userrecords"
)
View Source 
const (
	// InventoryPageSize is the number of tokens that will be returned
	// per page for all inventory commands.
	InventoryPageSize uint32 = 20
)
View Source 
const (
	// RecordsPageSize is the maximum number of records that can be
	// requested in a Records request.
	RecordsPageSize = 5
)

Variables

View Source 
var (
	// ErrorCodes contains the human readable errors.
	ErrorCodes = map[ErrorCodeT]string{
		ErrorCodeInvalid:                 "error invalid",
		ErrorCodeInputInvalid:            "input invalid",
		ErrorCodeFilesEmpty:              "files are empty",
		ErrorCodeFileNameInvalid:         "file name invalid",
		ErrorCodeFileNameDuplicate:       "file name duplicate",
		ErrorCodeFileMIMETypeInvalid:     "file mime type invalid",
		ErrorCodeFileMIMETypeUnsupported: "file mime type unsupported",
		ErrorCodeFileDigestInvalid:       "file digest invalid",
		ErrorCodeFilePayloadInvalid:      "file payload invalid",
		ErrorCodeMetadataStreamIDInvalid: "metadata stream id invalid",
		ErrorCodePublicKeyInvalid:        "public key invalid",
		ErrorCodeSignatureInvalid:        "signature invalid",
		ErrorCodeRecordTokenInvalid:      "record token invalid",
		ErrorCodeRecordNotFound:          "record not found",
		ErrorCodeRecordLocked:            "record locked",
		ErrorCodeNoRecordChanges:         "no record changes",
		ErrorCodeRecordStateInvalid:      "record state invalid",
		ErrorCodeRecordStatusInvalid:     "record status invalid",
		ErrorCodeStatusChangeInvalid:     "status change invalid",
		ErrorCodeStatusReasonNotFound:    "status reason not found",
		ErrorCodePageSizeExceeded:        "page size exceeded",
	}
)
View Source 
var (
	// RecordStates contains the human readable record states.
	RecordStates = map[RecordStateT]string{
		RecordStateInvalid:  "invalid",
		RecordStateUnvetted: "unvetted",
		RecordStateVetted:   "vetted",
	}
)
View Source 
var (
	// RecordStatuses contains the human readable record statuses.
	RecordStatuses = map[RecordStatusT]string{
		RecordStatusInvalid:    "invalid",
		RecordStatusUnreviewed: "unreviewed",
		RecordStatusPublic:     "public",
		RecordStatusCensored:   "censored",
		RecordStatusArchived:   "archived",
	}
)

Functions

This section is empty.

Types

type CensorshipRecord 

type CensorshipRecord struct {
	// Token is a random censorship token that is generated by the
	// server. It serves as a unique identifier for the record.
	Token string `json:"token"`

	// Merkle is the ordered merkle root of all files in the record.
	Merkle string `json:"merkle"`

	// Signature is the server signature of the Merkle+Token.
	Signature string `json:"signature"`
}

CensorshipRecord contains cryptographic proof that a record was accepted for review by the server. The proof is verifiable by the client.

type Details 

type Details struct {
	Token   string `json:"token"`
	Version uint32 `json:"version,omitempty"`
}

Details requests the details of a record. The full record will be returned. If no version is specified then the most recent version will be returned.

type DetailsReply 

type DetailsReply struct {
	Record Record `json:"record"`
}

DetailsReply is the reply to the Details command.

type Edit 

type Edit struct {
	Token     string `json:"token"`
	Files     []File `json:"files"`
	PublicKey string `json:"publickey"`
	Signature string `json:"signature"`
}

Edit edits an existing record.

Signature is the client signature of the record merkle root. The merkle root is the ordered merkle root of all record Files.

type EditReply 

type EditReply struct {
	Record Record `json:"record"`
}

EditReply is the reply to the Edit command.

type ErrorCodeT 

type ErrorCodeT uint32

ErrorCodeT represents a user error code. 

const (
	// ErrorCodeInvalid is an invalid error code.
	ErrorCodeInvalid ErrorCodeT = 0

	// ErrorCodeInputInvalid is returned when there is an error
	// while prasing a command payload.
	ErrorCodeInputInvalid ErrorCodeT = 1

	// ErrorCodeFilesEmpty is returned when record's files are
	// empty.
	ErrorCodeFilesEmpty ErrorCodeT = 2

	// ErrorCodeFileNameInvalid is returned when a file name is
	// invalid.
	ErrorCodeFileNameInvalid ErrorCodeT = 3

	// ErrorCodeFileNameDuplicate is returned when a file name is
	// a duplicate.
	ErrorCodeFileNameDuplicate ErrorCodeT = 4

	// ErrorCodeFileMIMETypeInvalid is returned when a file MIME type
	// is invalid.
	ErrorCodeFileMIMETypeInvalid ErrorCodeT = 5

	// ErrorCodeFileMIMETypeUnsupported is returned when a file MIME
	// type is unsupported.
	ErrorCodeFileMIMETypeUnsupported ErrorCodeT = 6

	// ErrorCodeFileDigestInvalid is returned when an invalid file
	// digest found.
	ErrorCodeFileDigestInvalid ErrorCodeT = 7

	// ErrorCodeFilePayloadInvalid is returned when an invalid file
	// payload found.
	ErrorCodeFilePayloadInvalid ErrorCodeT = 8

	// ErrorCodeMetadataStreamIDInvalid is returned a metadata stream
	// ID is invalid.
	ErrorCodeMetadataStreamIDInvalid ErrorCodeT = 9

	// ErrorCodePublicKeyInvalid is returned when a public key is not
	// a valid hex encoded, Ed25519 public key.
	ErrorCodePublicKeyInvalid ErrorCodeT = 10

	// ErrorCodeSignatureInvalid is returned when a signature is not
	// a valid hex encoded, Ed25519 signature or when the signature is
	// wrong.
	ErrorCodeSignatureInvalid ErrorCodeT = 11

	// ErrorCodeRecordTokenInvalid is returned when a record token is
	// invalid.
	ErrorCodeRecordTokenInvalid ErrorCodeT = 12

	// ErrorCodeRecordNotFound is returned when a record is not found.
	ErrorCodeRecordNotFound ErrorCodeT = 13

	// ErrorCodeRecordLocked is returned when a record is locked.
	ErrorCodeRecordLocked ErrorCodeT = 14

	// ErrorCodeNoRecordChanges is retuned when no record changes found.
	ErrorCodeNoRecordChanges ErrorCodeT = 15

	// ErrorCodeRecordStateInvalid is returned when a record state is
	// invalid.
	ErrorCodeRecordStateInvalid ErrorCodeT = 16

	// ErrorCodeRecordStatusInvalid is returned when a record status is
	// invalid.
	ErrorCodeRecordStatusInvalid ErrorCodeT = 17

	// ErrorCodeStatusChangeInvalid is returned when a record status change
	// is invalid.
	ErrorCodeStatusChangeInvalid ErrorCodeT = 18

	// ErrorCodeStatusReasonNotFound is returned when a record status change
	// reason is not found.
	ErrorCodeStatusReasonNotFound ErrorCodeT = 19

	// ErrorCodePageSizeExceeded is returned when the request's page size
	// exceeds the maximum page size of the request.
	ErrorCodePageSizeExceeded ErrorCodeT = 20

	// ErrorCodeLast is used by unit tests to verify that all error codes have
	// a human readable entry in the ErrorCodes map. This error will never be
	// returned.
	ErrorCodeLast ErrorCodeT = 21
)

type File 

type File struct {
	Name    string `json:"name"`    // Filename
	MIME    string `json:"mime"`    // Mime type
	Digest  string `json:"digest"`  // SHA256 digest of unencoded payload
	Payload string `json:"payload"` // File content, base64 encoded
}

File describes an individual file that is part of the record.

type Inventory 

type Inventory struct {
	State  RecordStateT  `json:"state,omitempty"`
	Status RecordStatusT `json:"status,omitempty"`
	Page   uint32        `json:"page,omitempty"`
}

Inventory requests the tokens of the records in the inventory, categorized by record state and record status. The tokens are ordered by the timestamp of their most recent status change, sorted from newest to oldest.

The state, status, and page arguments can be provided to request a specific page of record tokens.

If no status is provided then a page of tokens for all statuses are returned. The state and page arguments will be ignored.

Unvetted record tokens will only be returned to admins.

type InventoryOrdered 

type InventoryOrdered struct {
	State RecordStateT `json:"state"`
	Page  uint32       `json:"page"`
}

InventoryOrdered requests a page of record tokens ordered by the timestamp of their most recent status change from newest to oldest. The reply will include tokens for all record statuses. Unvetted tokens will only be returned to admins.

type InventoryOrderedReply 

type InventoryOrderedReply struct {
	Tokens []string `json:"tokens"`
}

InventoryOrderedReply is the reply to the InventoryOrdered command.

type InventoryReply 

type InventoryReply struct {
	Unvetted map[string][]string `json:"unvetted"`
	Vetted   map[string][]string `json:"vetted"`
}

InventoryReply is the reply to the Inventory command. The returned maps are map[status][]token where the status is the human readable record status defined by the RecordStatuses array in this package.

type MetadataStream 

type MetadataStream struct {
	PluginID string `json:"pluginid"`
	StreamID uint32 `json:"streamid"`
	Payload  string `json:"payload"` // JSON encoded
}

MetadataStream describes a record metadata stream.

type New 

type New struct {
	Files     []File `json:"files"`
	PublicKey string `json:"publickey"`
	Signature string `json:"signature"`
}

New submits a new record.

Signature is the client signature of the record merkle root. The merkle root is the ordered merkle root of all record Files.

type NewReply 

type NewReply struct {
	Record Record `json:"record"`
}

NewReply is the reply to the New command.

type PluginErrorReply 

type PluginErrorReply struct {
	PluginID     string `json:"pluginid"`
	ErrorCode    uint32 `json:"errorcode"`
	ErrorContext string `json:"errorcontext,omitempty"`
}

PluginErrorReply is the reply that the server returns when it encounters a plugin error.

func (PluginErrorReply) Error 

func (e PluginErrorReply) Error() string

Error satisfies the error interface.

type Policy added in v1.2.0 

type Policy struct{}

Policy requests the policy settings for the records API.

type PolicyReply added in v1.2.0 

type PolicyReply struct {
	RecordsPageSize   uint32 `json:"recordspagesize"`
	InventoryPageSize uint32 `json:"inventorypagesize"`
}

PolicyReply is the reply to the Policy command.

type Proof 

type Proof struct {
	Type       string   `json:"type"`
	Digest     string   `json:"digest"`
	MerkleRoot string   `json:"merkleroot"`
	MerklePath []string `json:"merklepath"`
	ExtraData  string   `json:"extradata"` // JSON encoded
}

Proof contains an inclusion proof for the digest in the merkle root. All digests are hex encoded SHA256 digests.

The ExtraData field is used by certain types of proofs to include additional data that is required to validate the proof.

type Record 

type Record struct {
	State     RecordStateT     `json:"state"`     // Record state
	Status    RecordStatusT    `json:"status"`    // Record status
	Version   uint32           `json:"version"`   // Version of this record
	Timestamp int64            `json:"timestamp"` // Last update
	Username  string           `json:"username"`  // Author username
	Metadata  []MetadataStream `json:"metadata"`  // Metadata streams
	Files     []File           `json:"files"`     // User submitted files

	CensorshipRecord CensorshipRecord `json:"censorshiprecord"`
}

Record represents a record and all of its content.

type RecordRequest 

type RecordRequest struct {
	Token     string   `json:"token"`
	Filenames []string `json:"filenames,omitempty"`
}

RecordRequest is used to requests select content from a record. The latest version of the record is returned. By default, all record files will be stripped from the record before being returned.

Filenames can be used to request specific files. If filenames is empty than no record files will be returned.

type RecordStateT 

type RecordStateT uint32

RecordStateT represents the state of a record. 

const (
	// RecordStateInvalid is an invalid record state.
	RecordStateInvalid RecordStateT = 0

	// RecordStateUnvetted indicates a record has not been made public.
	RecordStateUnvetted RecordStateT = 1

	// RecordStateVetted indicates a record has been made public.
	RecordStateVetted RecordStateT = 2

	// RecordStateLast unit test only.
	RecordStateLast RecordStateT = 3
)

type RecordStatusT 

type RecordStatusT uint32

RecordStatusT represents the status of a record. 

const (
	// RecordStatusInvalid is an invalid status code.
	RecordStatusInvalid RecordStatusT = 0

	// RecordStatusUnreviewed indicates a record has not been made
	// public yet. The state of an unreviewed record will always be
	// unvetted.
	RecordStatusUnreviewed RecordStatusT = 1

	// RecordStatusPublic indicates a record has been made public. The
	// state of a public record will always be vetted.
	RecordStatusPublic RecordStatusT = 2

	// RecordStatusCensored indicates a record has been censored. A
	// censored record is locked from any further updates and all
	// record content is permanently deleted. A censored record can
	// have a state of either unvetted or vetted.
	RecordStatusCensored RecordStatusT = 3

	// RecordStatusArchived indicates a record has been archived. An
	// archived record is locked from any further updates. An archived
	// record have a state of either unvetted or vetted.
	RecordStatusArchived RecordStatusT = 4

	// RecordStatusLast unit test only.
	RecordStatusLast RecordStatusT = 5
)

type Records 

type Records struct {
	Requests []RecordRequest `json:"requests"`
}

Records requests a batch of records. This route should be used when the client only requires select content from the record. The Details command should be used when the full record content is required. Unvetted record files are only returned to admins and the author.

type RecordsReply 

type RecordsReply struct {
	Records map[string]Record `json:"records"` // [token]Record
}

RecordsReply is the reply to the Records command. Any tokens that did not correspond to a record will not be included in the reply.

**Note** partial record's merkle root is not verifiable - when generating the record's merkle all files must be present.

type ServerErrorReply 

type ServerErrorReply struct {
	ErrorCode int64 `json:"errorcode"`
}

ServerErrorReply is the reply that the server returns when it encounters an unrecoverable error while executing a command. The HTTP status code will be 500 and the ErrorCode field will contain a UNIX timestamp that the user can provide to the server admin to track down the error details in the logs.

func (ServerErrorReply) Error 

func (e ServerErrorReply) Error() string

Error satisfies the error interface.

type SetStatus 

type SetStatus struct {
	Token     string        `json:"token"`
	Version   uint32        `json:"version"`
	Status    RecordStatusT `json:"status"`
	Reason    string        `json:"reason,omitempty"`
	PublicKey string        `json:"publickey"`
	Signature string        `json:"signature"`
}

SetStatus sets the status of a record. Some status changes require a reason to be included.

Signature is the client signature of the Token+Version+Status+Reason.

type SetStatusReply 

type SetStatusReply struct {
	Record Record `json:"record"`
}

SetStatusReply is the reply to the SetStatus command.

type StatusChange 

type StatusChange struct {
	Token     string        `json:"token"`
	Version   uint32        `json:"version"`
	Status    RecordStatusT `json:"status"`
	Reason    string        `json:"reason,omitempty"`
	PublicKey string        `json:"publickey"`
	Signature string        `json:"signature"`
	Timestamp int64         `json:"timestamp"`
}

StatusChange represents a record status change. It is generated by the server and saved to politeiad as a metadata stream.

Signature is the client signature of the Token+Version+Status+Reason.

type Timestamp 

type Timestamp struct {
	Data       string  `json:"data"` // JSON encoded
	Digest     string  `json:"digest"`
	TxID       string  `json:"txid"`
	MerkleRoot string  `json:"merkleroot"`
	Proofs     []Proof `json:"proofs"`
}

Timestamp contains all of the data required to verify that a piece of record data was timestamped onto the decred blockchain.

All digests are hex encoded SHA256 digests. The merkle root can be found in the OP_RETURN of the specified DCR transaction.

TxID, MerkleRoot, and Proofs will only be populated once the merkle root has been included in a DCR tx and the tx has 6 confirmations. The Data field will not be populated if the data has been censored.

type Timestamps 

type Timestamps struct {
	Token   string `json:"token"`
	Version uint32 `json:"version,omitempty"`
}

Timestamps requests the timestamps for a specific record version. If the version is omitted, the timestamps for the most recent version will be returned.

type TimestampsReply 

type TimestampsReply struct {
	RecordMetadata Timestamp `json:"recordmetadata"`

	// map[pluginID]map[streamID]Timestamp
	Metadata map[string]map[uint32]Timestamp `json:"metadata"`

	// map[filename]Timestamp
	Files map[string]Timestamp `json:"files"`
}

TimestampsReply is the reply to the Timestamps command.

type UserErrorReply 

type UserErrorReply struct {
	ErrorCode    ErrorCodeT `json:"errorcode"`
	ErrorContext string     `json:"errorcontext,omitempty"`
}

UserErrorReply is the reply that the server returns when it encounters an error that is caused by something that the user did (malformed input, bad timing, etc). The HTTP status code will be 400.

func (UserErrorReply) Error 

func (e UserErrorReply) Error() string

Error satisfies the error interface.

type UserMetadata 

type UserMetadata struct {
	UserID    string `json:"userid"`    // Author user ID
	PublicKey string `json:"publickey"` // Key used for signature
	Signature string `json:"signature"` // Signature of merkle root
}

UserMetadata contains user metadata about a politeiad record. It is generated by the server and saved to politeiad as a metadata stream.

Signature is the client signature of the record merkle root. The merkle root is the ordered merkle root of all user submitted politeiad files.

type UserRecords 

type UserRecords struct {
	UserID string `json:"userid"`
}

UserRecords requests the tokens of all records submitted by a user. Unvetted record tokens are only returned to admins and the record author.

type UserRecordsReply 

type UserRecordsReply struct {
	Unvetted []string `json:"unvetted"`
	Vetted   []string `json:"vetted"`
}

UserRecordsReply is the reply to the UserRecords command.

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