Package google.cloud.webrisk.v1beta1

Index

• WebRiskServiceV1Beta1 (interface)
• CompressionType (enum)
• ComputeThreatListDiffRequest (message)
• ComputeThreatListDiffRequest.Constraints (message)
• ComputeThreatListDiffResponse (message)
• ComputeThreatListDiffResponse.Checksum (message)
• ComputeThreatListDiffResponse.ResponseType (enum)
• RawHashes (message)
• RawIndices (message)
• RiceDeltaEncoding (message)
• SearchHashesRequest (message)
• SearchHashesResponse (message)
• SearchHashesResponse.ThreatHash (message)
• SearchUrisRequest (message)
• SearchUrisResponse (message)
• SearchUrisResponse.ThreatUri (message)
• ThreatEntryAdditions (message)
• ThreatEntryRemovals (message)
• ThreatType (enum)

WebRiskServiceV1Beta1

Web Risk v1beta1 API defines an interface to detect malicious URLs on your website and in client applications.

ComputeThreatListDiff

rpc ComputeThreatListDiff(ComputeThreatListDiffRequest) returns (ComputeThreatListDiffResponse) Gets the most recent threat list diffs. These diffs should be applied to a local database of hashes to keep it up-to-date. If the local database is empty or excessively out-of-date, a complete snapshot of the database will be returned. Authorization Scopes Requires the following OAuth scope: https://www.googleapis.com/auth/cloud-platform For more information, see the Authentication Overview.

SearchHashes

rpc SearchHashes(SearchHashesRequest) returns (SearchHashesResponse) Gets the full hashes that match the requested hash prefix. This is used after a hash prefix is looked up in a threatList and there is a match. The client side threatList only holds partial hashes so the client must query this method to determine if there is a full hash match of a threat. Authorization Scopes Requires the following OAuth scope: https://www.googleapis.com/auth/cloud-platform For more information, see the Authentication Overview.

SearchUris

rpc SearchUris(SearchUrisRequest) returns (SearchUrisResponse) This method is used to check whether a URI is on a given threatList. Multiple threatLists may be searched in a single query. The response will list all requested threatLists the URI was found to match. If the URI is not found on any of the requested ThreatList an empty response will be returned. Authorization Scopes Requires the following OAuth scope: https://www.googleapis.com/auth/cloud-platform For more information, see the Authentication Overview.

CompressionType

The ways in which threat entry sets can be compressed.

Enums
COMPRESSION_TYPE_UNSPECIFIED	Unknown.
RAW	Raw, uncompressed data.
RICE	Rice-Golomb encoded data.

ComputeThreatListDiffRequest

Describes an API diff request.

Fields
threat_type	ThreatType Required. The threat list to update. Only a single ThreatType should be specified.
version_token	bytes The current version token of the client for the requested list (the client version that was received from the last successful diff). If the client does not have a version token (this is the first time calling ComputeThreatListDiff), this may be left empty and a full database snapshot will be returned.
constraints	Constraints Required. The constraints associated with this request.

Constraints

The constraints for this diff.

Fields
max_diff_entries	int32 The maximum size in number of entries. The diff will not contain more entries than this value. This should be a power of 2 between 2**10 and 2**20. If zero, no diff size limit is set.
max_database_entries	int32 Sets the maximum number of entries that the client is willing to have in the local database. This should be a power of 2 between 2**10 and 2**20. If zero, no database size limit is set.
supported_compressions[]	CompressionType The compression types supported by the client.

ComputeThreatListDiffResponse

Fields
response_type	ResponseType The type of response. This may indicate that an action must be taken by the client when the response is received.
additions	ThreatEntryAdditions A set of entries to add to a local threat type's list.
removals	ThreatEntryRemovals A set of entries to remove from a local threat type's list. This field may be empty.
new_version_token	bytes The new opaque client version token. This should be retained by the client and passed into the next call of ComputeThreatListDiff as 'version_token'.
checksum	Checksum The expected SHA256 hash of the client state; that is, of the sorted list of all hashes present in the database after applying the provided diff. If the client state doesn't match the expected state, the client must discard this diff and retry later.
recommended_next_diff	Timestamp The soonest the client should wait before issuing any diff request. Querying sooner is unlikely to produce a meaningful diff. Waiting longer is acceptable considering the use case. If this field is not set clients may update as soon as they want.

Checksum

The expected state of a client's local database.

Fields
sha256	bytes The SHA256 hash of the client state; that is, of the sorted list of all hashes present in the database.

ResponseType

The type of response sent to the client.

Enums
RESPONSE_TYPE_UNSPECIFIED	Unknown.
DIFF	Partial updates are applied to the client's existing local database.
RESET	Full updates resets the client's entire local database. This means that either the client had no state, was seriously out-of-date, or the client is believed to be corrupt.

RawHashes

The uncompressed threat entries in hash format. Hashes can be anywhere from 4 to 32 bytes in size. A large majority are 4 bytes, but some hashes are lengthened if they collide with the hash of a popular URI.

Used for sending ThreatEntryAdditons to clients that do not support compression, or when sending non-4-byte hashes to clients that do support compression.

Fields
prefix_size	int32 The number of bytes for each prefix encoded below. This field can be anywhere from 4 (shortest prefix) to 32 (full SHA256 hash). In practice this is almost always 4, except in exceptional circumstances.
raw_hashes	bytes The hashes, in binary format, concatenated into one long string. Hashes are sorted in lexicographic order. For JSON API users, hashes are base64-encoded.

RawIndices

A set of raw indices to remove from a local list.

Fields
indices[]	int32 The indices to remove from a lexicographically-sorted local list.

RiceDeltaEncoding

The Rice-Golomb encoded data. Used for sending compressed 4-byte hashes or compressed removal indices.

Fields
first_value	int64 The offset of the first entry in the encoded data, or, if only a single integer was encoded, that single integer's value. If the field is empty or missing, assume zero.
rice_parameter	int32 The Golomb-Rice parameter, which is a number between 2 and 28. This field is missing (that is, zero) if num_entries is zero.
entry_count	int32 The number of entries that are delta encoded in the encoded data. If only a single integer was encoded, this will be zero and the single value will be stored in first_value.
encoded_data	bytes The encoded deltas that are encoded using the Golomb-Rice coder.

SearchHashesRequest

Request to return full hashes matched by the provided hash prefixes.

Fields
hash_prefix	bytes A hash prefix, consisting of the most significant 4-32 bytes of a SHA256 hash. For JSON requests, this field is base64-encoded.
threat_types[]	ThreatType Required. The ThreatLists to search in. Multiple ThreatLists may be specified.

SearchHashesResponse

Fields
threats[]	ThreatHash The full hashes that matched the requested prefixes. The hash will be populated in the key.
negative_expire_time	Timestamp For requested entities that did not match the threat list, how long to cache the response until.

ThreatHash

Contains threat information on a matching hash.

Fields
threat_types[]	ThreatType The ThreatList this threat belongs to. This must contain at least one entry.
hash	bytes A 32 byte SHA256 hash. This field is in binary format. For JSON requests, hashes are base64-encoded.
expire_time	Timestamp The cache lifetime for the returned match. Clients must not cache this response past this timestamp to avoid false positives.

SearchUrisRequest

Request to check URI entries against threatLists.

Fields
uri	string Required. The URI to be checked for matches.
threat_types[]	ThreatType Required. The ThreatLists to search in. Multiple ThreatLists may be specified.

SearchUrisResponse

Fields
threat	ThreatUri The threat list matches. This may be empty if the URI is on no list.

ThreatUri

Contains threat information on a matching uri.

Fields
threat_types[]	ThreatType The ThreatList this threat belongs to.
expire_time	Timestamp The cache lifetime for the returned match. Clients must not cache this response past this timestamp to avoid false positives.

ThreatEntryAdditions

Contains the set of entries to add to a local database. May contain a combination of compressed and raw data in a single response.

Fields
raw_hashes[]	RawHashes The raw SHA256-formatted entries. Repeated to allow returning sets of hashes with different prefix sizes.
rice_hashes	RiceDeltaEncoding The encoded 4-byte prefixes of SHA256-formatted entries, using a Golomb-Rice encoding. The hashes are converted to uint32, sorted in ascending order, then delta encoded and stored as encoded_data.

ThreatEntryRemovals

Contains the set of entries to remove from a local database.

Fields
raw_indices	RawIndices The raw removal indices for a local list.
rice_indices	RiceDeltaEncoding The encoded local, lexicographically-sorted list indices, using a Golomb-Rice encoding. Used for sending compressed removal indices. The removal indices (uint32) are sorted in ascending order, then delta encoded and stored as encoded_data.

ThreatType

The type of threat. This maps directly to the threat list a threat may belong to.

Enums
THREAT_TYPE_UNSPECIFIED	Default type that indicates this enum hasn't been specified. This is not a valid ThreatType, one of the other types must be specified instead.
MALWARE	Malware targeting any platform.
SOCIAL_ENGINEERING	Social engineering targeting any platform.
UNWANTED_SOFTWARE	Unwanted software targeting any platform.