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[fix] engine tineye: handle 422 response of not supported img format
Closes: https://github.com/searxng/searxng/issues/1449 Signed-off-by: Markus Heiser <markus.heiser@darmarit.de>
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Markus Heiser
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50d714d829
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1540891561
@ -17,6 +17,7 @@ billion images `[tineye.com] <https://tineye.com/how>`_.
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from urllib.parse import urlencode
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from datetime import datetime
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from flask_babel import gettext
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about = {
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"website": 'https://tineye.com',
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@ -28,20 +29,41 @@ about = {
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}
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engine_type = 'online_url_search'
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""":py:obj:`searx.search.processors.online_url_search`"""
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categories = ['general']
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paging = True
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safesearch = False
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base_url = 'https://tineye.com'
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search_string = '/result_json/?page={page}&{query}'
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FORMAT_NOT_SUPPORTED = gettext(
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"Could not read that image url. This may be due to an unsupported file"
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" format. TinEye only supports images that are JPEG, PNG, GIF, BMP, TIFF or WebP."
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)
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"""TinEye error message"""
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NO_SIGNATURE_ERROR = gettext(
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"The image is too simple to find matches. TinEye requires a basic level of"
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" visual detail to successfully identify matches."
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)
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"""TinEye error message"""
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DOWNLOAD_ERROR = gettext("The image could not be downloaded.")
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"""TinEye error message"""
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def request(query, params):
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"""Build TinEye HTTP request using ``search_urls`` of a :py:obj:`engine_type`."""
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params['raise_for_httperror'] = False
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if params['search_urls']['data:image']:
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query = params['search_urls']['data:image']
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elif params['search_urls']['http']:
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query = params['search_urls']['http']
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logger.debug("query URL: %s", query)
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query = urlencode({'url': query})
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# see https://github.com/TinEye/pytineye/blob/main/pytineye/api.py
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@ -59,45 +81,145 @@ def request(query, params):
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return params
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def response(resp):
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results = []
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def parse_tineye_match(match_json):
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"""Takes parsed JSON from the API server and turns it into a :py:obj:`dict`
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object.
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# Define wanted results
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json_data = resp.json()
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number_of_results = json_data['num_matches']
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Attributes `(class Match) <https://github.com/TinEye/pytineye/blob/main/pytineye/api.py>`__
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for i in json_data['matches']:
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image_format = i['format']
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width = i['width']
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height = i['height']
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thumbnail_src = i['image_url']
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backlink = i['domains'][0]['backlinks'][0]
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url = backlink['backlink']
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source = backlink['url']
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title = backlink['image_name']
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img_src = backlink['url']
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- `image_url`, link to the result image.
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- `domain`, domain this result was found on.
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- `score`, a number (0 to 100) that indicates how closely the images match.
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- `width`, image width in pixels.
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- `height`, image height in pixels.
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- `size`, image area in pixels.
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- `format`, image format.
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- `filesize`, image size in bytes.
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- `overlay`, overlay URL.
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- `tags`, whether this match belongs to a collection or stock domain.
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# Get and convert published date
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api_date = backlink['crawl_date'][:-3]
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publishedDate = datetime.fromisoformat(api_date)
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- `backlinks`, a list of Backlink objects pointing to the original websites
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and image URLs. List items are instances of :py:obj:`dict`, (`Backlink
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<https://github.com/TinEye/pytineye/blob/main/pytineye/api.py>`__):
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# Append results
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results.append(
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- `url`, the image URL to the image.
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- `backlink`, the original website URL.
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- `crawl_date`, the date the image was crawled.
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"""
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# HINT: there exists an alternative backlink dict in the domains list / e.g.::
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#
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# match_json['domains'][0]['backlinks']
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backlinks = []
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if "backlinks" in match_json:
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for backlink_json in match_json["backlinks"]:
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if not isinstance(backlink_json, dict):
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continue
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crawl_date = backlink_json.get("crawl_date")
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if crawl_date:
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crawl_date = datetime.fromisoformat(crawl_date[:-3])
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else:
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crawl_date = datetime.min
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backlinks.append(
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{
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'template': 'images.html',
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'url': url,
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'thumbnail_src': thumbnail_src,
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'source': source,
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'title': title,
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'img_src': img_src,
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'format': image_format,
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'widht': width,
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'height': height,
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'publishedDate': publishedDate,
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'url': backlink_json.get("url"),
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'backlink': backlink_json.get("backlink"),
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'crawl_date': crawl_date,
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'image_name': backlink_json.get("image_name"),
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}
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)
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# Append number of results
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return {
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'image_url': match_json.get("image_url"),
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'domain': match_json.get("domain"),
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'score': match_json.get("score"),
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'width': match_json.get("width"),
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'height': match_json.get("height"),
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'size': match_json.get("size"),
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'image_format': match_json.get("format"),
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'filesize': match_json.get("filesize"),
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'overlay': match_json.get("overlay"),
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'tags': match_json.get("tags"),
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'backlinks': backlinks,
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}
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def response(resp):
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"""Parse HTTP response from TinEye."""
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results = []
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try:
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json_data = resp.json()
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except Exception as exc: # pylint: disable=broad-except
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msg = "can't parse JSON response // %s" % exc
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logger.error(msg)
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json_data = {'error': msg}
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# handle error codes from Tineye
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if resp.is_error:
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if resp.status_code in (400, 422):
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message = 'HTTP status: %s' % resp.status_code
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error = json_data.get('error')
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s_key = json_data.get('suggestions', {}).get('key', '')
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if error and s_key:
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message = "%s (%s)" % (error, s_key)
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elif error:
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message = error
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if s_key == "Invalid image URL":
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# test https://docs.searxng.org/_static/searxng-wordmark.svg
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message = FORMAT_NOT_SUPPORTED
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elif s_key == 'NO_SIGNATURE_ERROR':
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# test https://pngimg.com/uploads/dot/dot_PNG4.png
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message = NO_SIGNATURE_ERROR
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elif s_key == 'Download Error':
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# test https://notexists
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message = DOWNLOAD_ERROR
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# see https://github.com/searxng/searxng/pull/1456#issuecomment-1193105023
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# results.append({'answer': message})
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logger.error(message)
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return results
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resp.raise_for_status()
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# append results from matches
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for match_json in json_data['matches']:
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tineye_match = parse_tineye_match(match_json)
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if not tineye_match['backlinks']:
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continue
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backlink = tineye_match['backlinks'][0]
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results.append(
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{
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'template': 'images.html',
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'url': backlink['backlink'],
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'thumbnail_src': tineye_match['image_url'],
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'source': backlink['url'],
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'title': backlink['image_name'],
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'img_src': backlink['url'],
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'format': tineye_match['image_format'],
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'widht': tineye_match['width'],
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'height': tineye_match['height'],
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'publishedDate': backlink['crawl_date'],
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}
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)
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# append number of results
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number_of_results = json_data.get('num_matches')
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if number_of_results:
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results.append({'number_of_results': number_of_results})
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return results
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