File size: 4,930 Bytes
910db9a | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | # thumbnail.py
from sanpera import geometry
from libweasyl import images
from libweasyl import staff
from weasyl import define as d
from weasyl import files
from weasyl import image
from weasyl import macro as m
from weasyl import media
from weasyl import orm
from weasyl.error import WeasylError
def thumbnail_source(submitid):
media_items = media.get_submission_media(submitid)
source = None
for link_type in ['thumbnail-source', 'cover']:
if media_items.get(link_type):
source = media_items[link_type][0]
break
if source is None:
raise WeasylError('noImageSource')
return source
def _upload_char(userid, filedata, charid):
"""
Creates a preview-size copy of an uploaded image file for a new thumbnail
selection file.
"""
query = d.execute(
"SELECT userid, settings FROM character WHERE charid = %i",
[charid], options="single")
if not query:
raise WeasylError("Unexpected")
elif userid != query[0] and userid not in staff.MODS:
raise WeasylError("InsufficientPermissions")
filename = d.url_make(charid, "char/.thumb", root=True)
files.write(filename, filedata, encoding=None)
if image.check_type(filename):
image.make_cover(filename)
else:
files.remove(filename)
raise WeasylError("FileType")
def clear_thumbnail(userid, submitid):
"""
Clears a submission's custom thumbnail.
TODO: Ability to clear character thumbnails?
TODO: This presently will clear both generated and custom thumbnails for
non-visual submissions because we have a few multimedia/literary submissions
whose thumbnails were generated from covers. If that ever ceases to be the
case, revisit this logic.
Args:
userid: The userid requesting this operation. Used for permission checking.
Returns:
None
"""
submission = orm.Submission.query.get(submitid)
if not submission:
raise WeasylError("Unexpected")
elif userid not in staff.MODS and userid != submission.owner.userid:
raise WeasylError("Unexpected")
elif not submission.media.get('thumbnail-custom'):
if submission.subtype < 2000 or not submission.media.get('thumbnail-generated'):
raise WeasylError("noThumbnail")
orm.SubmissionMediaLink.clear_link(submitid, 'thumbnail-custom')
if submission.subtype >= 2000:
orm.SubmissionMediaLink.clear_link(submitid, 'thumbnail-generated')
def upload(userid, filedata, submitid=None, charid=None):
if charid:
return _upload_char(userid, filedata, charid)
media_item = media.make_cover_media_item(filedata, error_type='FileType')
orm.SubmissionMediaLink.make_or_replace_link(submitid, 'thumbnail-source', media_item)
def _create_char(userid, x1, y1, x2, y2, charid, config=None, remove=True):
x1, y1, x2, y2 = d.get_int(x1), d.get_int(y1), d.get_int(x2), d.get_int(y2)
filename = d.url_make(charid, "char/.thumb", root=True)
if not m.os.path.exists(filename):
filename = d.url_make(charid, "char/cover", root=True)
if not filename:
return
remove = False
im = image.read(filename)
size = im.size.width, im.size.height
d.execute("""
UPDATE character
SET settings = REGEXP_REPLACE(settings, '-.', '') || '-%s'
WHERE charid = %i
""", [image.image_setting(im), charid])
dest = '%s%i.thumb%s' % (d.get_hash_path(charid, "char"), charid, images.image_extension(im))
bounds = None
if image.check_crop(size, x1, y1, x2, y2):
bounds = geometry.Rectangle(x1, y1, x2, y2)
thumb = images.make_thumbnail(im, bounds)
thumb.write(dest, format=images.image_file_type(thumb))
if remove:
m.os.remove(filename)
def create(userid, x1, y1, x2, y2, submitid=None, charid=None,
config=None, remove=True):
if charid:
return _create_char(userid, x1, y1, x2, y2, charid, config, remove)
db = d.connect()
x1, y1, x2, y2 = d.get_int(x1), d.get_int(y1), d.get_int(x2), d.get_int(y2)
source = thumbnail_source(submitid)
im = db.query(orm.MediaItem).get(source['mediaid']).as_image()
size = im.size.width, im.size.height
bounds = None
if image.check_crop(size, x1, y1, x2, y2):
bounds = geometry.Rectangle(x1, y1, x2, y2)
thumb = images.make_thumbnail(im, bounds)
file_type = images.image_file_type(im)
media_item = orm.fetch_or_create_media_item(
thumb.to_buffer(format=file_type), file_type=file_type, im=thumb)
orm.SubmissionMediaLink.make_or_replace_link(
submitid, 'thumbnail-custom', media_item)
def unhide(userid, submitid=None, charid=None):
d.execute("UPDATE %s SET settings = REPLACE(settings, 'hu', '') WHERE %s = %i",
["submission", "submitid", submitid] if submitid else ["character", "charid", charid])
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