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# -*- coding: utf-8 -*- |
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from bika.lims import api |
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from Products.Five.browser import BrowserView |
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from senaite.core import logger |
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class ResolveAttachmentView(BrowserView): |
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"""Resolve Attachment by UID |
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This view is used for attachment image links to attachments |
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""" |
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def __init__(self, context, request): |
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self.context = context |
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self.request = request |
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def __call__(self): |
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uid = self.request.get("uid") |
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attachment = api.get_object_by_uid(uid, default=None) |
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if attachment is None: |
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logger.error("No attachment found for UID: '{}'".format(uid)) |
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return |
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return self.download(attachment) |
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def get_attachment_info(self, attachment): |
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"""Returns a dictionary of attachment information |
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""" |
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blob = attachment.getAttachmentFile() |
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return { |
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"data": blob.data, |
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"content_type": blob.content_type, |
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"filename": blob.filename, |
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"last_modified": api.get_modification_date(attachment), |
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} |
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def download(self, attachment): |
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info = self.get_attachment_info(attachment) |
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data = info.get("data", "") |
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content_type = info.get("content_type", "application/octet-stream") |
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last_modified = info.get("last_modified") |
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response = self.request.response |
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set_header = response.setHeader |
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set_header("Content-Type", "{}".format(content_type)) |
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set_header("Content-Length", len(data)) |
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set_header("Last-Modified", last_modified) |
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response.write(data) |
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senaite /
senaite.core
