diff options
Diffstat (limited to 'cmd/iiifdownloader/main.go')
| -rw-r--r-- | cmd/iiifdownloader/main.go | 83 |
1 files changed, 72 insertions, 11 deletions
diff --git a/cmd/iiifdownloader/main.go b/cmd/iiifdownloader/main.go index a1fba4f..593a93e 100644 --- a/cmd/iiifdownloader/main.go +++ b/cmd/iiifdownloader/main.go @@ -25,8 +25,8 @@ Currently supports the following IIIF using services: - BNF's Gallica example url: https://gallica.bnf.fr/ark:/12148/bpt6k6468158v - BSB / MDZ example url: https://reader.digitale-sammlungen.de//de/fs1/object/display/bsb10132387_00005.html - DFG Viewer example url: http://dfg-viewer.de/show?set%%5Bmets%%5D=http%%3A%%2F%%2Fdaten.digitale-sammlungen.de%%2F~db%%2Fmets%%2Fbsb11274872_mets.xml&cHash=fd18451ee968c125ab2bdbfd3717eae6 -- IIIF Manifest (TODO) -- METS Manifest (TODO) +- IIIF Manifest example url: https://iiif.bodleian.ox.ac.uk/iiif/manifest/441db95d-cdff-472e-bb2d-b46f043db82d.json +- METS Manifest example url: https://daten.digitale-sammlungen.de/~db/mets/bsb10132387_mets.xml ` @@ -305,7 +305,27 @@ func sanitiseUrl(u string) string { return s } +// detectService finds which service to use based on the +// url passed to it. +func detectService(url string) string { + switch { + case strings.HasSuffix(url, "/manifest"): + return "iiifmanifest" + case strings.HasSuffix(url, "mets.xml"): + return "mets" + case strings.HasPrefix(url, bnfPrefix): + return "bnf" + case strings.HasPrefix(url, bsbPrefix): + return "bsb" + case strings.HasPrefix(url, dfgPrefix): + return "dfg" + } + return "" +} + func main() { + service := flag.String("service", "", "Force use of a specific service rather than autodetecting based on the URL (choose one of: bnf, bsb, mets, iiifmanifest)") + dir := flag.String("bookdir", "", "Save book pages to this directory") forcemets := flag.Bool("mets", false, "Force METS metadata to be used (BSB / MDZ only)") flag.Usage = func() { fmt.Fprintf(flag.CommandLine.Output(), usage) @@ -326,9 +346,28 @@ func main() { var pgUrls []string var noPgNums bool var err error + var useservice string - switch { - case strings.HasPrefix(u, bnfPrefix): + if *dir != "" { + bookdir = *dir + } + + if *service == "" { + useservice = detectService(u) + } else { + useservice = *service + } + + switch *service { + case "iiifmanifest": + if bookdir == "" { + bookdir = "iiifbook" + } + pgUrls, err = parseMets(u) + } + + switch useservice { + case "bnf": f := strings.Split(u[len(bnfPrefix):], "/") if len(f) < 2 { log.Fatalln("Failed to extract BNF book ID from URL") @@ -341,7 +380,9 @@ func main() { lastpart = f[1][0:dot] } bookid := f[0] + "/" + lastpart - bookdir = f[0] + "-" + lastpart + if bookdir == "" { + bookdir = f[0] + "-" + lastpart + } pgurlStart = "https://gallica.bnf.fr/iiif/ark:/" + bookid + "/f" pgurlEnd = "/full/full/0/native.jpg" @@ -351,13 +392,15 @@ func main() { // the missing ones in less good quality from an alternative URL. pgurlAltStart = "https://gallica.bnf.fr/ark:/" + bookid + "/f" pgurlAltEnd = ".highres" - case strings.HasPrefix(u, bsbPrefix): + case "bsb": f := strings.Split(u[len(bsbPrefix):], "_") if len(f) < 2 { - log.Fatalln("Failed to extract BNF book ID from URL") + log.Fatalln("Failed to extract BSB book ID from URL") } bookid := f[0] - bookdir = bookid + if bookdir == "" { + bookdir = bookid + } iiifurl := "https://api.digitale-sammlungen.de/iiif/presentation/v2/" + bookid + "/manifest" if *forcemets { @@ -369,7 +412,7 @@ func main() { if err != nil { log.Fatalf("Error parsing manifest url %s: %v\n", iiifurl, err) } - case strings.HasPrefix(u, dfgPrefix): + case "dfg": // dfg can have a url encoded mets url in several parts of the viewer url metsNames := []string{"set[mets]", "tx_dlf[id]"} var metsurl string @@ -396,14 +439,32 @@ func main() { b := path.Base(metsurl) f := strings.Split(b, "_") - bookdir = f[0] + if bookdir == "" { + bookdir = f[0] + } pgUrls, err = parseMets(metsurl) if err != nil { log.Fatalf("Error parsing mets url %s: %v\n", metsurl, err) } + case "iiifmanifest": + if bookdir == "" { + bookdir = "iiifbook" + } + pgUrls, err = parseIIIFManifest(u) + if err != nil { + log.Fatalf("Error parsing iiif manifest url %s: %v\n", u, err) + } + case "mets": + if bookdir == "" { + bookdir = "metsbook" + } + pgUrls, err = parseMets(u) + if err != nil { + log.Fatalf("Error parsing mets url %s: %v\n", u, err) + } default: - log.Fatalln("Error: generic IIIF downloading not supported yet") + log.Fatalln("Error: failed to autodetect service type, or invalid service type given; specify with the -service flag") } err = os.MkdirAll(bookdir, 0777) |