Request URI: /path/to/some/binary
Methods: HEAD, GET
HEAD Request the fixity checksum for a given digest algorithm
Checking fixity requires retrieving the content from the binary store and may take some time.
Request Headers:
WANT-DIGEST md5, sha, sha-256
Example:
curl -I -H "Want-Digest: sha-256" "http://localhost:8080/rest/path/to/some/binary"
Response (fixity success):
Status: 200 OK Headers: ETag: "51c5ed5fff4b6c79233cc7573a387902f7d171e7" Last-Modified: Fri, 04 May 2018 18:14:47 GMT Content-Type: image/jpeg Accept-Ranges: bytes Content-Disposition: attachment; filename="IMG_4023.JPG.jpg"; creation-date="Fri, 04 May 2018 18:14:47 GMT"; modification-date="Fri, 04 May 2018 18:14:47 GMT"; size=47021 Link: <http://www.w3.org/ns/ldp#Resource>;rel="type" Link: <http://www.w3.org/ns/ldp#NonRDFSource>;rel="type" Link: <http://localhost:8080/rest/examples/binary/fcr:acl>; rel="acl" Link: <http://localhost:8080/rest/examples/binary/fcr:metadata>; rel="describedby" Link: <http://localhost:8080/static/constraints/NonRDFSourceConstraints.rdf>; rel="http://www.w3.org/ns/ldp#constrainedBy" Link: <http://localhost:8080/rest/examples/binary>; rel="timegate" Link: <http://localhost:8080/rest/examples/binary>; rel="original" Link: <http://localhost:8080/rest/examples/binary/fcr:versions>; rel="timemap" Link: <http://mementoweb.org/ns#OriginalResource>; rel="type" Link: <http://mementoweb.org/ns#TimeGate>; rel="type" Accept-External-Content-Handling: copy,redirect,proxy Allow: DELETE,HEAD,GET,PUT,OPTIONS Digest: sha256=08692ca74dc1e08c84f90feda5e64c72617be850a7c7adca88b03f6ccd3db406 Content-Length: 47021
Status:
200 OK
400 Bad request (the 'Want-Digest' request-header algorithm type is either invalid or unsupported)
404 Resource not found
| NOTE: While the following feature is still available in Fedora 5, it is deprecated and may be removed in a future release. |
|---|
Request URI: /path/to/some/resource/fcr:fixity
Methods: GET
GET Get the fixity report for an object
Checking fixity requires retrieving the content from the binary store and may take some time.
The /fcr:fixity endpoint is not part of the Fedora API Specification. This feature is currently supported for backwards compatibility reasons and may be removed in a future release.
Request Headers:
ACCEPT application/ld+json, application/n-triples, application/rdf+xml, application/x-turtle, application/xhtml+xml, application/xml, text/html, text/n3, text/plain, text/rdf+n3, text/turtle
Example:
curl -H "Accept: text/turtle" "http://localhost:8080/rest/path/to/some/resource/fcr:fixity"
Response (fixity success):
Status: 200 OK
Headers:
Content-Type: text/turtle
Body:
@prefix premis: <http://www.loc.gov/premis/rdf/v1#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://localhost:8080/rest/path/to/some/resource>
premis:hasFixity <http://localhost:8080/rest/path/to/some/resource#fixity/1494431303920> .
<http://localhost:8080/rest/path/to/some/resource#fixity/1494431303920>
rdf:type premis:Fixity ;
rdf:type premis:EventOutcomeDetail ;
premis:hasEventOutcome "SUCCESS" ;
premis:hasMessageDigestAlgorithm "SHA-1" ;
premis:hasMessageDigest <urn:sha1:ca3392593351ef8e6554bdabfbd8bdc1002ecb6f> ;
premis:hasSize "1277811"^^<http://www.w3.org/2001/XMLSchema#long> .
Response (fixity failure):
Status: 200 OK
Headers:
Content-Type: text/turtle
Body:
@prefix premis: <http://www.loc.gov/premis/rdf/v1#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
<http://localhost:8080/rest/path/to/some/resource>
premis:hasFixity <http://localhost:8080/rest/path/to/some/resource#fixity/1494445619308> .
<http://localhost:8080/rest/path/to/some/resource#fixity/1494445619308>
rdf:type premis:Fixity ;
rdf:type premis:EventOutcomeDetail ;
premis:hasEventOutcome "BAD_CHECKSUM" ;
premis:hasEventOutcome "BAD_SIZE" ;
premis:hasMessageDigestAlgorithm "SHA-1" ;
premis:hasMessageDigest <urn:sha1:1d3d03c656cf0a944c393bf9257c6cecdba5263f> ;
premis:hasSize "1287509"^^<http://www.w3.org/2001/XMLSchema#long> .
Status:
200 OK
404 Resource not found
Note: Default Fixity Algorithm
When ingesting a binary resource, one or more checksums may be provided, see API reference (POST example 4, POST example 4b, PUT example 3). The supported algorithms are: SHA-1, SHA-256 and MD5.
By default, the algorithm used by the /fcr:fixity endpoint is SHA-1. However, that may be changed - per resource - to one of the other supported algorithms by configuring the property: fedoraconfig:defaultDigestAlgorithm . See API reference (PATCH example 2).
