diff options
Diffstat (limited to 'synapse')
| -rw-r--r-- | synapse/config/oembed.py | 24 | ||||
| -rw-r--r-- | synapse/rest/media/v1/oembed.py | 26 |
2 files changed, 43 insertions, 7 deletions
diff --git a/synapse/config/oembed.py b/synapse/config/oembed.py index 09267b5eef..ea6ace4729 100644 --- a/synapse/config/oembed.py +++ b/synapse/config/oembed.py @@ -13,7 +13,7 @@ # limitations under the License. import json import re -from typing import Any, Dict, Iterable, List, Pattern +from typing import Any, Dict, Iterable, List, Optional, Pattern from urllib import parse as urlparse import attr @@ -31,6 +31,8 @@ class OEmbedEndpointConfig: api_endpoint: str # The patterns to match. url_patterns: List[Pattern] + # The supported formats. + formats: Optional[List[str]] class OembedConfig(Config): @@ -93,11 +95,22 @@ class OembedConfig(Config): # might have multiple patterns to match. for endpoint in provider["endpoints"]: api_endpoint = endpoint["url"] + + # The API endpoint must be an HTTP(S) URL. + results = urlparse.urlparse(api_endpoint) + if results.scheme not in {"http", "https"}: + raise ConfigError( + f"Unsupported oEmbed scheme ({results.scheme}) for endpoint {api_endpoint}", + config_path, + ) + patterns = [ self._glob_to_pattern(glob, config_path) for glob in endpoint["schemes"] ] - yield OEmbedEndpointConfig(api_endpoint, patterns) + yield OEmbedEndpointConfig( + api_endpoint, patterns, endpoint.get("formats") + ) def _glob_to_pattern(self, glob: str, config_path: Iterable[str]) -> Pattern: """ @@ -114,9 +127,12 @@ class OembedConfig(Config): """ results = urlparse.urlparse(glob) - # Ensure the scheme does not have wildcards (and is a sane scheme). + # The scheme must be HTTP(S) (and cannot contain wildcards). if results.scheme not in {"http", "https"}: - raise ConfigError(f"Insecure oEmbed scheme: {results.scheme}", config_path) + raise ConfigError( + f"Unsupported oEmbed scheme ({results.scheme}) for pattern: {glob}", + config_path, + ) pattern = urlparse.urlunparse( [ diff --git a/synapse/rest/media/v1/oembed.py b/synapse/rest/media/v1/oembed.py index afe41823e4..2e6706dbfa 100644 --- a/synapse/rest/media/v1/oembed.py +++ b/synapse/rest/media/v1/oembed.py @@ -49,8 +49,24 @@ class OEmbedProvider: def __init__(self, hs: "HomeServer", client: SimpleHttpClient): self._oembed_patterns = {} for oembed_endpoint in hs.config.oembed.oembed_patterns: + api_endpoint = oembed_endpoint.api_endpoint + + # Only JSON is supported at the moment. This could be declared in + # the formats field. Otherwise, if the endpoint ends in .xml assume + # it doesn't support JSON. + if ( + oembed_endpoint.formats is not None + and "json" not in oembed_endpoint.formats + ) or api_endpoint.endswith(".xml"): + logger.info( + "Ignoring oEmbed endpoint due to not supporting JSON: %s", + api_endpoint, + ) + continue + + # Iterate through each URL pattern and point it to the endpoint. for pattern in oembed_endpoint.url_patterns: - self._oembed_patterns[pattern] = oembed_endpoint.api_endpoint + self._oembed_patterns[pattern] = api_endpoint self._client = client def get_oembed_url(self, url: str) -> Optional[str]: @@ -86,11 +102,15 @@ class OEmbedProvider: """ try: logger.debug("Trying to get oEmbed content for url '%s'", url) + + # Note that only the JSON format is supported, some endpoints want + # this in the URL, others want it as an argument. + endpoint = endpoint.replace("{format}", "json") + result = await self._client.get_json( endpoint, # TODO Specify max height / width. - # Note that only the JSON format is supported. - args={"url": url}, + args={"url": url, "format": "json"}, ) # Ensure there's a version of 1.0. |