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resolver.py
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resolver.py
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#!/usr/bin/env python
import os
import requests
from iiif2 import iiif, web
from .configs import options, cors, approot, cache_root, media_root, apiurl, LINKS
from iiif_prezi3 import Manifest, config, Annotation, AnnotationPage,AnnotationPageRef, Canvas, Manifest, ResourceItem, ServiceItem, Choice, Collection, ManifestRef, CollectionRef
from urllib.parse import urlparse, parse_qs, quote
import json
import math
import re
import xml.etree.ElementTree as ET
from datetime import timedelta
SCRAPE_API = 'https://archive.org/services/search/v1/scrape'
ADVANCED_SEARCH = 'https://archive.org/advancedsearch.php'
IMG_CTX = 'http://iiif.io/api/image/2/context.json'
PRZ_CTX = 'http://iiif.io/api/presentation/2/context.json'
ARCHIVE = 'https://archive.org'
IMG_SRV = 'https://iiif.archive.org/image/iiif'
METADATA_FIELDS = ("title", "volume", "publisher", "subject", "date", "contributor", "creator")
bookdata = 'https://%s/BookReader/BookReaderJSON.php'
bookreader = "https://%s/BookReader/BookReaderImages.php"
URI_PRIFIX = "https://iiif.archive.org/iiif"
MAX_SCRAPE_LIMIT = 10_000
MAX_API_LIMIT = 1_000
class MaxLimitException(Exception):
pass
valid_filetypes = ['jpg', 'jpeg', 'png', 'gif', 'tif', 'jp2', 'pdf', 'tiff']
class IsCollection(Exception):
# Used for when we need to raise to the route handler from inside the manifest function
pass
def purify_domain(domain):
domain = re.sub(r'^http:\/\/', "https://", domain)
return domain if domain.endswith('/iiif/') else domain + 'iiif/'
def scrape(query, fields="", sorts="", count=100, cursor="", restrict_to_iiif=False, security=True):
"""
params:
query: the query (using the same query Lucene-like queries supported by Internet Archive Advanced Search.
fields: Metadata fields to return, comma delimited
sorts: Fields to sort on, comma delimited (if identifier is specified, it must be last)
count: Number of results to return (minimum of 100)
cursor: A cursor, if any (otherwise, search starts at the beginning)
restrict_to_iiif: restrict query to supported IIIF collections?
security: enforce API page limit
"""
if restrict_to_iiif or not query:
_query = "(mediatype:(texts) OR mediatype:(image))"
query = f"{_query} AND {query}" if query else _query
if int(count) > MAX_API_LIMIT and security:
raise MaxLimitException(f"Limit may not exceed {MAX_API_LIMIT}.")
fields = fields or 'identifier,title'
params = {
'q': query
}
if sorts:
params['sorts'] = sorts
if fields:
params['fields'] = fields
if count:
params['count'] = count
if cursor:
params['cursor'] = cursor
r = requests.get(SCRAPE_API, params=params)
return r.json()
def search(query, page=1, limit=100, security=True, sort=None, fields=None):
if not query:
raise ValueError("GET query parameters 'q' required")
if int(limit) > MAX_API_LIMIT and security:
raise MaxLimitException(f"Limit may not exceed {MAX_API_LIMIT}.")
return requests.get(
ADVANCED_SEARCH,
params={'q': query,
'sort[]': sort or ['date asc', 'createdate'],
'rows': limit,
'page': page,
'fl[]': fields or 'identifier,title',
'output': 'json',
}).json()
def checkMultiItem(metadata):
# Maybe add call to book stack to see if that works first
# Count the number of each original file
file_types = {}
for file in metadata['files']:
if file['source'] == "original":
if file['format'] not in file_types:
file_types[file['format']] = 0
file_types[file['format']] += 1
#print (file_types)
# If there is multiple files of the same type then return the first format
# Will have to see if there are objects with multiple images and formats
for format in file_types:
if file_types[format] > 1 and format.lower() in valid_filetypes:
return (True, format)
return (False, None)
def to_mimetype(format):
formats = {
"VBR MP3": "audio/mp3",
"32Kbps MP3": "audio/mp3",
"56Kbps MP3": "audio/mp3",
"64Kbps MP3": "audio/mp3",
"96Kbps MP3": "audio/mp3",
"128Kbps MP3": "audio/mp3",
"Flac": "audio/flac",
"Ogg Vorbis": "audio/ogg",
"Ogg Video": "video/ogg",
"WAVE": "audio/wav",
"MPEG4": "video/mp4",
"24bit Flac": "audio/flac",
'Shorten': "audio/shn",
"MPEG2": "video/mpeg",
"512Kb MPEG4": "video/mpeg",
"HiRes MPEG4": "video/mpeg",
"h.264 MPEG4": "video/mpeg",
"h.264": "video/mpeg",
"Matroska": "video/x-matroska",
"Cinepack": "video/x-msvideo",
"AIFF": "audio/aiff",
"Apple Lossless Audio": "audio/x-m4a",
"MPEG-4 Audio": "audio/mp4"
}
return formats.get(format, "application/octet-stream")
def collection(domain, identifiers, label='Custom Archive.org IIIF Collection'):
cs = {
'@context': PRZ_CTX,
'@id': "%scollection.json" % domain,
'@type': 'sc:Collection',
'label': label,
'collections': []
}
for i in identifiers:
cs['collections'].append({
'@id': '%s%s/manifest.json' % (domain, i),
'@type': 'sc:Manifest',
'label': label,
'description': label
})
return cs
def create_collection3(identifier, domain, page=1, rows=MAX_API_LIMIT):
# Get item metadata
metadata = requests.get('%s/metadata/%s' % (ARCHIVE, identifier)).json()
# Used to build up URIs for the manifest
uri = f"{domain}{identifier}/collection.json"
config.configs['helpers.auto_fields.AutoLang'].auto_lang = "none"
collection = Collection(id=uri, label=metadata["metadata"]["title"])
addMetadata(collection, identifier, metadata['metadata'], collection=True)
asURL = f'{ADVANCED_SEARCH}?q=collection%3A{identifier}&fl[]=identifier&fl[]=mediatype&fl[]=title&fl[]=description&sort[]=&sort[]=&sort[]=&rows={rows}&page={page}&output=json&save=yes'
itemsSearch = requests.get(asURL).json()
total = itemsSearch['response']['numFound']
# There is a max of 10,000 items that can be retrieved from the advanced search
if total > MAX_SCRAPE_LIMIT:
total = MAX_SCRAPE_LIMIT
if len(itemsSearch['response']['docs']) == 0:
return None
pages = math.ceil(total / rows)
for item in itemsSearch['response']['docs']:
child = None
if item['mediatype'] == 'collection':
child = CollectionRef(id=f"{domain}{item['identifier']}/collection.json", type="Collection", label=item['title'])
else:
child = ManifestRef(id=f"{domain}{item['identifier']}/manifest.json", type="Manifest", label=item['title'])
if "description" in item:
child.summary = {"none": [item['description']]}
collection.add_item(child)
page += 1
if page <= pages:
child = CollectionRef(id=f"{domain}{identifier}/{page}/collection.json", type="Collection", label={ "en": [f"Page {page} of {pages}"]})
collection.add_item(child)
return json.loads(collection.jsonld())
def manifest_page(identifier, label='', page='', width='', height='', metadata=None, canvasId=""):
if not canvasId:
canvasId = f"{identifier}/canvas"
metadata = metadata or {}
return {
'@id': canvasId,
'@type': 'sc:Canvas',
'@context': PRZ_CTX,
'description': metadata.get('description', ''),
'label': label or 'p. ' + str(page),
'width': width,
'height': height,
'images': [{
'@type': 'oa:Annotation',
'@context': IMG_CTX,
'@id': '%s/annotation' % identifier,
'on': '%s/annotation' % identifier,
'motivation': "sc:painting",
'resource': {
'@id': '%s/full/full/0/default.jpg' % identifier,
'@type': 'dctypes:Image',
'width': width,
'height': height,
'format': 'image/jpeg',
'service': {
'@context': IMG_CTX,
'@id': identifier,
'profile': 'https://iiif.io/api/image/2/profiles/level2.json',
}
}
}]
}
def create_manifest(identifier, domain=None, page=None):
path = os.path.join(media_root, identifier)
resp = requests.get('%s/metadata/%s' % (ARCHIVE, identifier)).json()
metadata = resp.get("metadata", {})
manifest = {
'@context': PRZ_CTX,
'@id': '%s%s/manifest.json' % (domain, identifier),
'@type': 'sc:Manifest',
'description': metadata.get('description', ''),
'logo': 'https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcReMN4l9cgu_qb1OwflFeyfHcjp8aUfVNSJ9ynk2IfuHwW1I4mDSw',
'sequences': [
{
'@id': '%s%s/canvas/default' % (domain, identifier),
'@type': 'sc:Sequence',
'@context': IMG_CTX,
'label': 'default',
'canvases': []
}
],
'viewingHint': 'paged',
'attribution': "The Internet Archive",
'seeAlso': '%s/metadata/%s' % (ARCHIVE, identifier)
}
mediatype = metadata.get("mediatype")
if 'title' in metadata:
manifest['label'] = metadata['title']
if 'identifier-access' in metadata:
manifest['related'] = metadata['identifier-access']
if 'description' in metadata:
manifest['description'] = coerce_list(metadata['description'])
manifest['metadata'] = [{"label": field, "value": coerce_list(metadata[field])}
for field in METADATA_FIELDS if metadata.get(field)]
if page and mediatype is None:
mediatype = 'image'
if "$" not in identifier:
filepath = None
else:
identifier, filepath = identifier.split("$", 1)
filepath = filepath.replace("$", os.sep)
if mediatype.lower() == 'image' or (
filepath and mediatype.lower() != 'texts'
):
path, mediatype = ia_resolver(identifier)
info = web.info(domain, path)
manifest['sequences'][0]['canvases'].append(
manifest_page(
identifier="%s%s" % (domain, identifier),
label=metadata['title'],
width=info['width'],
height=info['height'],
metadata=metadata,
canvasId= f"https://iiif.archivelab.org/iiif/{identifier}/canvas"
)
)
elif mediatype.lower() == 'texts':
subPrefix = resp['dir']
server = resp.get('server', ARCHIVE)
# XXX Use https://api.archivelab.org/books/:id/metadata API
r = requests.get(bookdata % server, params={
'server': server,
'itemPath': subPrefix,
'itemId': identifier
})
if r.status_code != 200:
# If the bookdata failed then treat as a single image
fileName = ""
for f in resp['files']:
if valid_filetype(f['name']) \
and f['source'].lower() == 'original' \
and 'thumb' not in f['name']:
fileName = f['name']
break
if not fileName:
# Original wasn't an image
for f in resp['files']:
if '_jp2.zip' in f['name']:
fileName = f"{f['name']}/{f['name'].replace('.zip','')}/{f['name'].replace('jp2.zip','0000.jp2')}"
imgId = f"{identifier}/{fileName}".replace('/','%2f')
info_resp = requests.get(f"{IMG_SRV}/2/{imgId}/info.json")
info = info_resp.json()
manifest['sequences'][0]['canvases'].append(
manifest_page(
identifier= info['@id'],
label=metadata['title'],
width=info['width'],
height=info['height'],
metadata=metadata,
canvasId= f"https://iiif.archivelab.org/iiif/{identifier}/canvas"
)
)
else:
data = r.json()
manifest.update({
'label': data['title'],
'thumbnail': {
'@id': data['previewImage']
},
})
if page:
manifest['sequences'][0]['canvases'].append(
manifest_page(
identifier = "%s%s$%s" % (domain, identifier, page),
label=data['pageNums'][page],
width=data['pageWidths'][page],
height=data['pageHeights'][page],
canvasId= f"https://iiif.archivelab.org/iiif/{identifier}${page}/canvas"
)
)
return manifest
for page in range(0, len(data.get('leafNums', []))):
manifest['sequences'][0]['canvases'].append(
manifest_page(
identifier = "%s%s$%s" % (domain, identifier, page),
label=data['pageNums'][page],
width=data['pageWidths'][page],
height=data['pageHeights'][page],
canvasId= f"https://iiif.archivelab.org/iiif/{identifier}${page}/canvas"
)
)
return manifest
def singleImage(metadata, identifier, manifest, uri):
fileName = ""
for f in metadata['files']:
if valid_filetype(f['name']) \
and f['source'].lower() == 'original' \
and 'thumb' not in f['name']:
fileName = f['name']
break
if not fileName:
# Original wasn't an image
for f in metadata['files']:
if '_jp2.zip' in f['name']:
fileName = f"{f['name']}/{f['name'].replace('.zip','')}/{f['name'].replace('jp2.zip','0000.jp2')}"
imgId = f"{identifier}/{fileName}".replace('/','%2f')
imgURL = f"{IMG_SRV}/3/{imgId}"
manifest.make_canvas_from_iiif(url=imgURL,
id=f"{URI_PRIFIX}/{identifier}/canvas",
label="1",
anno_page_id=f"{uri}/annotationPage/1",
anno_id=f"{uri}/annotation/1")
def addMetadata(item, identifier, metadata, collection=False):
item.homepage = [{"id": f"https://archive.org/details/{identifier}",
"type": "Text",
"label": {"en": ["Item Page on Internet Archive"]},
"format": "text/html"}]
item.provider = [{"id": "https://archive.org",
"type": "Agent",
"label": {"en": ["The Internet Archive"]},
"homepage": [{"id": "https://archive.org",
"type": "Text",
"label": {"en": ["Internet Archive Homepage"]},
"format": "text/html"}],
"logo": [{
"id": "https://archive.org/images/glogo.png",
"type": "Image",
"format": "image/png",
"height": 79,
"width": 79
}],
}]
if "licenseurl" in metadata:
item.rights = metadata["licenseurl"].replace("https", "http", 1)
if "description" in metadata:
if type(metadata["description"]) != list:
item.summary = {"none": [metadata["description"]]}
else:
item.summary = {"none": metadata["description"]}
excluded_fields = [
'avg_rating', 'backup_location', 'btih', 'description', 'downloads',
'imagecount', 'indexflag', 'item_size', 'licenseurl', 'curation',
'noindex', 'num_reviews', 'oai_updatedate', 'publicdate', 'publisher', 'reviewdate',
'scanningcentre', 'stripped_tags', 'uploader'
]
manifest_metadata = []
for field in metadata:
if field not in excluded_fields:
if type(metadata[field]) != list:
metadata_value = [str(metadata[field])]
else:
metadata_value = metadata[field]
manifest_metadata.append(
{"label": {"none": [field]}, "value": {"none": metadata_value}})
item.metadata = manifest_metadata
def addSeeAlso(manifest, identifier, files):
manifest.seeAlso = [
{"id": f"{ARCHIVE}/metadata/{identifier}",
"type": "Metadata",
"label": {"en": ["Item Metadata"]},
"format": "application/json"}
]
# Type format from IA Metadata -> Type description in IIIF
SEEALSO_TYPES = {
"Abbyy GZ": "OCR Data",
"Abbyy XML": "OCR Data",
"Djvu XML": "OCR Data",
"Scandata": "OCR Data",
"Archive BitTorrent": "Torrent",
"Metadata": "Metadata",
}
for file in files:
if file['format'] in LINKS and LINKS[file['format']]['field'] == 'seeAlso':
seeAlso = LINKS[file['format']]
manifest.seeAlso.append(
{"id": f"{ARCHIVE}/download/{identifier}/{file['name']}",
"type": seeAlso['type'],
"label": {"en": [file["format"]]},
"format": seeAlso['format']
})
def addRendering(manifest, identifier, files):
manifest.rendering = []
for file in files:
if file['format'] in LINKS and LINKS[file['format']]['field'] == 'rendering':
rendering = LINKS[file['format']]
manifest.rendering.append(
{"id": f"{ARCHIVE}/download/{identifier}/{file['name']}",
"type": rendering['type'],
"label": {"en": [file["format"]]},
"format": rendering['format']
})
def addThumbnails(manifest, identifier, files):
thumbnails = []
for file in files:
if file['format'] == "Thumbnail":
mimetype = "image/jpeg"
if file['name'].endswith('.png'):
mimetype = "image/png"
thumbnails.append({
"id": f"{ARCHIVE}/download/{quote(identifier)}/{quote(file['name'])}",
"type": "Image",
"format": mimetype,
})
if thumbnails:
manifest.thumbnail = thumbnails
def create_manifest3(identifier, domain=None, page=None):
# Get item metadata
metadata = requests.get('%s/metadata/%s' % (ARCHIVE, identifier)).json()
mediatype = metadata['metadata']['mediatype']
# Used to build up URIs for the manifest
uri = f"{domain}{identifier}"
config.configs['helpers.auto_fields.AutoLang'].auto_lang = "none"
manifest = Manifest(id=f"{uri}/manifest.json", label=metadata["metadata"]["title"])
addMetadata(manifest, identifier, metadata['metadata'])
addSeeAlso(manifest, identifier, metadata['files'])
addRendering(manifest, identifier, metadata['files'])
addThumbnails(manifest, identifier, metadata['files'])
if mediatype == 'texts':
# Get bookreader metadata (mostly for filenames and height / width of image)
# subprefix can be different from the identifier use the scandata filename to find the correct prefix
# if not present fall back to identifier
subprefix = identifier
djvuFile = ""
for fileMd in metadata['files']:
if fileMd['name'].endswith('_scandata.xml'):
subprefix = fileMd['name'].replace('_scandata.xml', '')
if fileMd['format'] == 'Djvu XML':
djvuFile = fileMd['name']
bookReaderURL = f"https://{metadata.get('server')}/BookReader/BookReaderJSIA.php?id={identifier}&itemPath={metadata.get('dir')}&server={metadata.get('server')}&format=jsonp&subPrefix={subprefix}"
bookreader = requests.get(bookReaderURL).json()
if 'error' in bookreader:
# Image stack not found. Maybe a single image
singleImage(metadata, identifier, manifest, uri)
else:
pageCount = 0
# In json: /29/items/goody/goody_jp2.zip convert to goody/good_jp2.zip
zipFile = '/'.join(bookreader['data']['brOptions']['zip'].split('/')[-2:])
for pageSpread in bookreader['data']['brOptions']['data']:
for page in pageSpread:
fileUrl = urlparse(page['uri'])
fileName = parse_qs(fileUrl.query).get('file')[0]
imgId = f"{zipFile}/{fileName}"
imgURL = f"{IMG_SRV}/3/{quote(imgId, safe='()')}"
canvas = Canvas(id=f"{URI_PRIFIX}/{identifier}${pageCount}/canvas", label=f"{page['leafNum']}")
body = ResourceItem(id=f"{imgURL}/full/max/0/default.jpg", type="Image")
body.format = "image/jpeg"
body.service = [ServiceItem(id=imgURL, profile="level2", type="ImageService3")]
annotation = Annotation(id=f"{uri}/annotation/{pageCount}", motivation='painting', body=body, target=canvas.id)
annotationPage = AnnotationPage(id=f"{uri}/annotationPage/{pageCount}")
annotationPage.add_item(annotation)
canvas.add_item(annotationPage)
canvas.set_hwd(page['height'], page['width'])
manifest.add_item(canvas)
# Create canvas from IIIF image service. Note this is very slow:
#canvas = manifest.make_canvas_from_iiif(url=imgURL,
# id=f"https://iiif.archivelab.org/iiif/{identifier}${pageCount}/canvas",
# label=f"{page['leafNum']}")
pageCount += 1
# Setting logic for paging behavior and starting canvases
# Start with paged (default) or individual behaviors
try:
if bookreader['data']['brOptions']['defaults'] == "mode/1up":
manifest.behavior = "individuals"
except:
manifest.behavior = "paged"
# Then set left-to-right or right-to-left if present
try:
if bookreader['data']['brOptions']['pageProgression'] == "lr":
viewingDirection = "left-to-right"
elif bookreader['data']['brOptions']['pageProgression'] == "rl":
viewingDirection = "right-to-left"
if viewingDirection:
manifest.viewingDirection = viewingDirection
except:
pass
# Add annotations if djvu file is present
if djvuFile:
count = 1
for canvas in manifest.items:
if 'annotations' in canvas:
annotations = canvas.annotations
else:
annotations = []
annotations.append(
AnnotationPageRef(id=f"{domain}3/annotations/{identifier}/{quote(djvuFile, safe='()')}/{count}.json", type="AnnotationPage")
)
canvas.annotations = annotations
count += 1
elif mediatype == 'image':
(multiFile, format) = checkMultiItem(metadata)
print (f"Checking multiFile {multiFile} {format}")
if multiFile:
# Create multi file manifest
pageCount = 0
for file in metadata['files']:
if file['source'] == "original" and file['format'] == format:
imgId = f"{identifier}/{file['name']}".replace('/','%2f')
imgURL = f"{IMG_SRV}/3/{imgId}"
pageCount += 1
try:
manifest.make_canvas_from_iiif(url=imgURL,
id=f"{URI_PRIFIX}/{identifier}${pageCount}/canvas",
label=f"{file['name']}",
anno_page_id=f"{uri}/annotationPage/1",
anno_id=f"{uri}/annotation/1")
except requests.exceptions.HTTPError as error:
print (f'Failed to get {imgURL}')
manifest.make_canvas(label=f"Failed to load {file['name']} from Image Server",
summary=f"Got {error}",
id=f"{URI_PRIFIX}/{identifier}/canvas",
height=1800, width=1200)
else:
singleImage(metadata, identifier, manifest, uri)
elif mediatype == 'audio' or mediatype == 'etree':
# sort the files into originals and derivatives, splitting the derivatives into buckets based on the original
originals = []
derivatives = {}
for f in metadata['files']:
if f['source'] == 'derivative' and not isinstance(f['original'], list):
if f['original'] in derivatives:
derivatives[f['original']][f['format']] = f
else:
derivatives[f['original']] = {f['format']: f}
elif f['source'] == 'original':
originals.append(f)
# create the canvases for each original
for file in [f for f in originals if f['format'] in ['VBR MP3', '32Kbps MP3', '56Kbps MP3', '64Kbps MP3', '96Kbps MP3', '128Kbps MP3', 'MPEG-4 Audio', 'Flac', 'AIFF', 'Apple Lossless Audio', 'Ogg Vorbis', 'WAVE', '24bit Flac', 'Shorten']]:
normalised_id = file['name'].rsplit(".", 1)[0]
slugged_id = normalised_id.replace(" ", "-")
c_id = f"{URI_PRIFIX}/{identifier}/{slugged_id}/canvas"
c = Canvas(id=c_id, label=normalised_id, duration=float(file['length']))
# create intermediary objects
ap = AnnotationPage(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/page")
anno = Annotation(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/annotation", motivation="painting", target=c.id)
# create body based on whether there are derivatives or not:
if file['name'] in derivatives:
body = Choice(items=[])
# add the choices in order per https://github.com/ArchiveLabs/iiif.archivelab.org/issues/77#issuecomment-1499672734
for format in ['VBR MP3', '32Kbps MP3', '56Kbps MP3', '64Kbps MP3', '96Kbps MP3', '128Kbps MP3', 'MPEG-4 Audio', 'Flac', 'AIFF', 'Apple Lossless Audio', 'Ogg Vorbis', 'WAVE', '24bit Flac', 'Shorten']:
if format in derivatives[file['name']]:
r = ResourceItem(id=f"https://archive.org/download/{identifier}/{derivatives[file['name']][format]['name'].replace(' ', '%20')}",
type='Sound',
format=to_mimetype(format),
label={"none": [format]},
duration=float(file['length']))
body.items.append(r)
elif file['format'] == format:
r = ResourceItem(
id=f"https://archive.org/download/{identifier}/{file['name'].replace(' ', '%20')}",
type='Sound',
format=to_mimetype(format),
label={"none": [format]},
duration=float(file['length']))
body.items.append(r)
else:
# todo: deal with instances where there are no derivatives for whatever reason
pass
anno.body = body
ap.add_item(anno)
c.add_item(ap)
manifest.add_item(c)
elif mediatype == "movies":
# sort the files into originals and derivatives, splitting the derivatives into buckets based on the original
originals = []
derivatives = {}
vttfiles = {}
for f in metadata['files']:
if f['source'] == 'derivative':
if f['original'] in derivatives:
derivatives[f['original']][f['format']] = f
else:
derivatives[f['original']] = {f['format']: f}
elif f['source'] == 'original':
originals.append(f)
if f['format'] == 'Web Video Text Tracks':
# Example: cruz-test.en.vtt and 34C3_-_International_Image_Interoperability_Framework_IIIF_Kulturinstitutionen_schaffen_interop-SvH4fbjOT0A.autogenerated.vtt
sourceFilename = re.sub(r'\.[a-zA-H-]*\.vtt', '', f['name'])
if sourceFilename not in vttfiles:
vttfiles[sourceFilename] = []
vttfiles[sourceFilename].append(f)
if 'access-restricted-item' in metadata['metadata'] and metadata['metadata']['access-restricted-item']:
# this is a news item so has to be treated differently
# https://ia801803.us.archive.org/29/items/CSPAN3_20180217_164800_Poplar_Forest_Archaeology/CSPAN3_20180217_164800_Poplar_Forest_Archaeology.mp4?start=0&end=360&ignore=x.mp4&cnt=0
mp4File = None
duration = 0.0
filedata = None
for file in metadata['files']:
if file['name'].endswith('.mp4'):
mp4File = file['name']
duration = float(file['length'])
filedata = file
# create the canvases for each original
for file in [f for f in originals if f['format'] in ['MPEG4', 'h.264 HD', 'h.264 MPEG4', '512Kb MPEG4', 'HiRes MPEG4', 'MPEG2', 'h.264', 'Matroska', 'Ogg Video', 'Ogg Theora', 'WebM', 'Windows Media', 'Cinepack','QuickTime']]:
normalised_id = file['name'].rsplit(".", 1)[0]
slugged_id = normalised_id.replace(" ", "-")
c_id = f"{URI_PRIFIX}/{identifier}/{slugged_id}/canvas"
c = Canvas(id=c_id, label=normalised_id, duration=duration, height=int(filedata['height']), width=int(filedata['width']))
ap = AnnotationPage(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/page")
vttAPId = f"{URI_PRIFIX}/{identifier}/{slugged_id}/vtt"
vtAnno = c.make_annotation(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/annotation/vtt/streamed",
motivation="supplementing",
target=c.id,
anno_page_id=vttAPId,
body={"id": f"{domain}vtt/streaming/{identifier}.vtt",
"type": "Text",
"format": "text/vtt",
})
segments = math.floor(duration / 60)
for i in range(segments):
start = i * 60
if i == segments - 1:
end = int(duration)
else:
end = (i + 1) * 60
#print (f"Start: {start} End: {end}, Duration: {float(end) - float(start)} full duration: {duration}")
anno = Annotation(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/annotation/{i}", motivation="painting", target=f"{c.id}#t={start},{end}")
streamurl = f"https://{metadata['server']}{metadata['dir']}/{mp4File}?start={start}&end={end}&ignore=x.mp4&cnt=0"
body = ResourceItem(id=streamurl,
type='Video',
format="video/mp4",
label={"en": [f"Part {i + 1} of {segments}"]},
duration=end - start,
height=int(filedata['height']),
width=int(filedata['width']),
)
anno.body = body
ap.add_item(anno)
c.add_item(ap)
manifest.add_item(c)
else:
# create the canvases for each original
for file in [f for f in originals if f['format'] in ['MPEG4', 'h.264 MPEG4', '512Kb MPEG4', 'HiRes MPEG4', 'MPEG2', 'h.264', 'Matroska', 'Ogg Video', 'Ogg Theora', 'WebM', 'Windows Media', 'Cinepack']]:
normalised_id = file['name'].rsplit(".", 1)[0]
slugged_id = normalised_id.replace(" ", "-")
c_id = f"{URI_PRIFIX}/{identifier}/{slugged_id}/canvas"
c = Canvas(id=c_id, label=normalised_id, duration=float(file['length']), height=int(file['height']), width=int(file['width']))
# Add vtt if present
if vttfiles and normalised_id in vttfiles:
vttAPId = f"{URI_PRIFIX}/{identifier}/{slugged_id}/vtt"
vttNo = 1
for vttFile in vttfiles[normalised_id]:
vtAnno = c.make_annotation(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/annotation/vtt/{vttNo}",
motivation="supplementing",
target=c.id,
anno_page_id=vttAPId,
body={"id": f"{domain}resource/{identifier}/{vttFile['name']}",
"type": "Text",
"format": "text/vtt",
})
# add label and language
if vttFile['name'].endswith("autogenerated.vtt"):
vtAnno.body.label = { 'en': ['autogenerated']}
else:
# Assume language
splitName = vttFile['name'].split(".")
lang = splitName[-2]
vtAnno.body.add_label(lang, language="none")
vtAnno.body.language = lang
vttNo += 1
# create intermediary objects
ap = AnnotationPage(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/page")
anno = Annotation(id=f"{URI_PRIFIX}/{identifier}/{slugged_id}/annotation", motivation="painting", target=c.id)
# create body based on whether there are derivatives or not:
if file['name'] in derivatives:
body = Choice(items=[])
# add the choices in order per https://github.com/ArchiveLabs/iiif.archivelab.org/issues/77#issuecomment-1499672734
for format in ['MPEG4', 'h.264 MPEG4', '512Kb MPEG4', 'HiRes MPEG4', 'MPEG2', 'h.264', 'Matroska', 'Ogg Video', 'Ogg Theora', 'WebM', 'Windows Media', 'Cinepack']:
if format in derivatives[file['name']]:
r = ResourceItem(id=f"https://archive.org/download/{identifier}/{derivatives[file['name']][format]['name'].replace(' ', '%20')}",
type='Video',
format=to_mimetype(format),
label={"none": [format]},
duration=float(file['length']),
height=int(file['height']),
width=int(file['width']),
)
body.items.append(r)
elif file['format'] == format:
r = ResourceItem(
id=f"https://archive.org/download/{identifier}/{file['name'].replace(' ', '%20')}",
type='Video',
format=to_mimetype(format),
label={"none": [format]},
duration=float(file['length']),
height=int(file['height']),
width=int(file['width']))
body.items.append(r)
else:
# todo: deal with instances where there are no derivatives for whatever reason
pass
anno.body = body
ap.add_item(anno)
c.add_item(ap)
manifest.add_item(c)
elif mediatype == "collection":
raise IsCollection
else:
print (f'Unknown mediatype "{mediatype}"')
return json.loads(manifest.jsonld())
def create_annotations(version: int, identifier: str, fileName: str, canvas_no: int, domain: str | None = None):
annotationPage = AnnotationPage(id=f"{domain}{version}/annotations/{identifier}/{quote(fileName, safe='()')}/{canvas_no}.json")
annotationPage.items = []
index = canvas_no - 1
url = f"{ARCHIVE}/download/{identifier}/{fileName}"
try:
# Fetch the remote XML file
response = requests.get(url)
response.raise_for_status() # Raise an error for bad status codes
# Parse the XML content
djfu = ET.fromstring(response.content)
page = djfu.findall(f".//OBJECT[{canvas_no}]")[0]
words = page.findall(".//WORD")
count = 1
for word in words:
# <WORD coords="444,1353,635,1294" x-confidence="10">[David </WORD>
# <WORD coords="lx,by,rx,ty" x-confidence="10">[David </WORD>
# x = lx
# y = ty
# w = rx - lx
# h = by - ty
(left_x, bottom_y, right_x, top_y) = word.attrib['coords'].split(',')
x = left_x
y = top_y
width = int(right_x) - int(left_x)
height = int(bottom_y) - int(top_y)
annotationPage.items.append({
"id": f"https://iiif.archive.org/iiif/{identifier}/canvas/{index}/anno/{count}",
"type": "Annotation",
"motivation": "supplementing",
"body": {
"type": "TextualBody",
"format": "text/plain",
"value": word.text
},
"target": f"https://iiif.archive.org/iiif/{identifier}${index}/canvas#xywh={x},{y},{width},{height}"
})
count += 1
except requests.exceptions.RequestException as e:
print(f"Error fetching the XML file: {e}")
raise ValueError("Failed to retrieve {url}")
except ET.ParseError as e:
print(f"Error parsing the XML content: {e}")
raise ValueError("Failed to process {url}")
return json.loads(annotationPage.jsonld())
def create_vtt_stream(identifier):
"""
This method will read a SRT file using the following URL:
https://archive.org/download/CSPAN3_20180217_164800_Poplar_Forest_Archaeology/CSPAN3_20180217_164800_Poplar_Forest_Archaeology.cc5.srt?t=0/360
and convert it to vtt. The streaming text above takes seconds as a parameter.
"""
metadata = requests.get('%s/metadata/%s' % (ARCHIVE, identifier)).json()
filename = ""
duration = 0.0
for file in metadata['files']:
if file['name'].endswith('.mpg') and file['source'] == 'original':
duration = float(file['length'])
# There seems to be multiple srt files but unclear how they are different
if file['name'].endswith('.srt'):
filename = file['name']
# Initialize the vtt content with the WEBVTT header
vtt_content = ["WEBVTT\n"]
segments = math.floor(duration / 60)
for i in range(segments):
start = i * 60
if i == segments - 1:
end = int(duration)
else:
end = (i + 1) * 60
response = requests.get(f"https://archive.org/download/{identifier}/{filename}?t={start}/{end}")
if response.status_code == 200:
# Get the content of the SRT file as a string
srt_content = response.text
# Split the srt file by lines
lines = srt_content.splitlines()
for line in lines:
# Convert time format: 00:00:00,000 -> 00:00:00.000
if "-->" in line:
splitline = line.split("-->")
starttime = timeToDelta(splitline[0].strip()) + timedelta(seconds=start)
endtime = timeToDelta(splitline[1].strip()) + timedelta(seconds=start)
line = f"{formatTimeVTT(starttime)} --> {formatTimeVTT(endtime)}"
vtt_content.append(line)
vtt_content.append("")
# Join the list into a single string
return "\n".join(vtt_content)
def formatTimeVTT(time):
hours, remainder = divmod(time.total_seconds(), 3600)
minutes, seconds = divmod(remainder, 60)
return f"{int(hours):02}:{int(minutes):02}:{int(seconds):02}.{int(time.microseconds / 1000):03}"
def timeToDelta(time):
"""
Convert SRT formated times to timedelta
"""
milliseconds = int(time.split(",")[1])
timeStr = time.split(",")[0]
hour = int(timeStr.split(":")[0])
minute = int(timeStr.split(":")[1])
second = int(timeStr.split(":")[2])
return timedelta(hours=hour, minutes=minute, seconds=second, milliseconds=milliseconds)
def coerce_list(value):
if isinstance(value, list):
return ". ".join(value)
return value
def valid_filetype(filename):
f = filename.lower()
return any(f.endswith('.%s' % ext) for ext in valid_filetypes)
def ia_resolver(identifier):
"""Resolves a iiif identifier to the resource's path on disk.
Resolver returns the path of resource on the iiif server (as
opposed to a remote storage host, like Internet Archive) and first
fetches it, if it doesn't exist on disk..
"""
path = os.path.join(media_root, identifier)
leaf = None
if "$" not in identifier:
filepath = None
else:
identifier, filepath = identifier.split("$", 1)
filepath = filepath.replace("$", os.sep)
if os.sep not in filepath:
leaf = filepath
identifier, document = identifier.split(":", 1) if ":" in identifier else (identifier, None)
metadata = requests.get('%s/metadata/%s' % (ARCHIVE, identifier)).json()
if 'dir' not in metadata:
raise ValueError("No such valid Archive.org item identifier: %s" \
% identifier)
mediatype = metadata['metadata']['mediatype']
files = metadata['files']
collections = metadata['metadata']['collection']