# Copyright (C) 2015-2017 The Software Heritage developers # See the AUTHORS file at the top-level directory of this distribution # License: GNU Affero General Public License version 3, or any later version # See top-level LICENSE file for more information from collections import defaultdict from swh.model import hashutil from swh.web.api import converters from swh.web.api import query, backend from swh.web.api.exc import NotFoundExc def lookup_multiple_hashes(hashes): """Lookup the passed hashes in a single DB connection, using batch processing. Args: An array of {filename: X, sha1: Y}, string X, hex sha1 string Y. Returns: The same array with elements updated with elem['found'] = true if the hash is present in storage, elem['found'] = false if not. """ hashlist = [hashutil.hash_to_bytes(elem['sha1']) for elem in hashes] content_missing = backend.content_missing_per_sha1(hashlist) missing = [hashutil.hash_to_hex(x) for x in content_missing] for x in hashes: x.update({'found': True}) for h in hashes: if h['sha1'] in missing: h['found'] = False return hashes def lookup_expression(expression, last_sha1, per_page): """Lookup expression in raw content. Args: expression (str): An expression to lookup through raw indexed content last_sha1 (str): Last sha1 seen per_page (int): Number of results per page Returns: List of ctags whose content match the expression """ for ctag in backend.content_ctags_search(expression, last_sha1, per_page): ctag = converters.from_swh(ctag, hashess={'id'}) ctag['sha1'] = ctag['id'] ctag.pop('id') yield ctag def lookup_hash(q): """Checks if the storage contains a given content checksum Args: query string of the form Returns: Dict with key found containing the hash info if the hash is present, None if not. """ algo, hash = query.parse_hash(q) found = backend.content_find(algo, hash) return {'found': found, 'algo': algo} def search_hash(q): """Checks if the storage contains a given content checksum Args: query string of the form Returns: Dict with key found to True or False, according to whether the checksum is present or not """ algo, hash = query.parse_hash(q) found = backend.content_find(algo, hash) return {'found': found is not None} def lookup_content_provenance(q): """Return provenance information from a specified content. Args: q: query string of the form Yields: provenance information (dict) list if the content is found. """ algo, hash = query.parse_hash(q) provenances = backend.content_find_provenance(algo, hash) if not provenances: return None return (converters.from_provenance(p) for p in provenances) def _lookup_content_sha1(q): """Given a possible input, query for the content's sha1. Args: q: query string of the form Returns: binary sha1 if found or None """ algo, hash = query.parse_hash(q) if algo != 'sha1': hashes = backend.content_find(algo, hash) if not hashes: return None return hashes['sha1'] return hash def lookup_content_ctags(q): """Return ctags information from a specified content. Args: q: query string of the form Yields: ctags information (dict) list if the content is found. """ sha1 = _lookup_content_sha1(q) if not sha1: return None ctags = backend.content_ctags_get(sha1) if not ctags: return None for ctag in ctags: yield converters.from_swh(ctag, hashess={'id'}) def lookup_content_filetype(q): """Return filetype information from a specified content. Args: q: query string of the form Yields: filetype information (dict) list if the content is found. """ sha1 = _lookup_content_sha1(q) if not sha1: return None filetype = backend.content_filetype_get(sha1) if not filetype: return None return converters.from_filetype(filetype) def lookup_content_language(q): """Return language information from a specified content. Args: q: query string of the form Yields: language information (dict) list if the content is found. """ sha1 = _lookup_content_sha1(q) if not sha1: return None lang = backend.content_language_get(sha1) if not lang: return None return converters.from_swh(lang, hashess={'id'}) def lookup_content_license(q): """Return license information from a specified content. Args: q: query string of the form Yields: license information (dict) list if the content is found. """ sha1 = _lookup_content_sha1(q) if not sha1: return None lang = backend.content_license_get(sha1) if not lang: return None return converters.from_swh(lang, hashess={'id'}) def lookup_origin(origin): """Return information about the origin matching dict origin. Args: origin: origin's dict with keys either 'id' or ('type' AND 'url') Returns: origin information as dict. """ return converters.from_origin(backend.origin_get(origin)) def lookup_person(person_id): """Return information about the person with id person_id. Args: person_id as string Returns: person information as dict. """ person = backend.person_get(person_id) return converters.from_person(person) def lookup_directory(sha1_git): """Return information about the directory with id sha1_git. Args: sha1_git as string Returns: directory information as dict. """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( sha1_git, ['sha1'], # HACK: sha1_git really 'Only sha1_git is supported.') dir = backend.directory_get(sha1_git_bin) if not dir: return None directory_entries = backend.directory_ls(sha1_git_bin) return map(converters.from_directory_entry, directory_entries) def lookup_directory_with_path(directory_sha1_git, path_string): """Return directory information for entry with path path_string w.r.t. root directory pointed by directory_sha1_git Args: - directory_sha1_git: sha1_git corresponding to the directory to which we append paths to (hopefully) find the entry - the relative path to the entry starting from the directory pointed by directory_sha1_git Raises: NotFoundExc if the directory entry is not found """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( directory_sha1_git, ['sha1'], 'Only sha1_git is supported.') queried_dir = backend.directory_entry_get_by_path( sha1_git_bin, path_string) if not queried_dir: raise NotFoundExc(('Directory entry with path %s from %s not found') % (path_string, directory_sha1_git)) return converters.from_directory_entry(queried_dir) def lookup_release(release_sha1_git): """Return information about the release with sha1 release_sha1_git. Args: release_sha1_git: The release's sha1 as hexadecimal Returns: Release information as dict. Raises: ValueError if the identifier provided is not of sha1 nature. """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( release_sha1_git, ['sha1'], 'Only sha1_git is supported.') res = backend.release_get(sha1_git_bin) return converters.from_release(res) def lookup_revision(rev_sha1_git): """Return information about the revision with sha1 revision_sha1_git. Args: revision_sha1_git: The revision's sha1 as hexadecimal Returns: Revision information as dict. Raises: ValueError if the identifier provided is not of sha1 nature. """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( rev_sha1_git, ['sha1'], 'Only sha1_git is supported.') revision = backend.revision_get(sha1_git_bin) return converters.from_revision(revision) def lookup_revision_multiple(sha1_git_list): """Return information about the revision with sha1 revision_sha1_git. Args: revision_sha1_git: The revision's sha1 as hexadecimal Returns: Revision information as dict. Raises: ValueError if the identifier provided is not of sha1 nature. """ def to_sha1_bin(sha1_hex): _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( sha1_hex, ['sha1'], 'Only sha1_git is supported.') return sha1_git_bin sha1_bin_list = (to_sha1_bin(x) for x in sha1_git_list) revisions = backend.revision_get_multiple(sha1_bin_list) return (converters.from_revision(x) for x in revisions) def lookup_revision_message(rev_sha1_git): """Return the raw message of the revision with sha1 revision_sha1_git. Args: revision_sha1_git: The revision's sha1 as hexadecimal Returns: Decoded revision message as dict {'message': } Raises: ValueError if the identifier provided is not of sha1 nature. NotFoundExc if the revision is not found, or if it has no message """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( rev_sha1_git, ['sha1'], 'Only sha1_git is supported.') revision = backend.revision_get(sha1_git_bin) if not revision: raise NotFoundExc('Revision with sha1_git %s not found.' % rev_sha1_git) if 'message' not in revision: raise NotFoundExc('No message for revision with sha1_git %s.' % rev_sha1_git) res = {'message': revision['message']} return res def lookup_revision_by(origin_id, branch_name="refs/heads/master", timestamp=None): """Lookup revisions by origin_id, branch_name and timestamp. If: - branch_name is not provided, lookup using 'refs/heads/master' as default. - ts is not provided, use the most recent Args: - origin_id: origin of the revision. - branch_name: revision's branch. - timestamp: revision's time frame. Yields: The revisions matching the criterions. """ res = backend.revision_get_by(origin_id, branch_name, timestamp) return converters.from_revision(res) def lookup_revision_log(rev_sha1_git, limit): """Return information about the revision with sha1 revision_sha1_git. Args: revision_sha1_git: The revision's sha1 as hexadecimal limit: the maximum number of revisions returned Returns: Revision information as dict. Raises: ValueError if the identifier provided is not of sha1 nature. """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( rev_sha1_git, ['sha1'], 'Only sha1_git is supported.') revision_entries = backend.revision_log(sha1_git_bin, limit) return map(converters.from_revision, revision_entries) def lookup_revision_log_by(origin_id, branch_name, timestamp, limit): """Return information about the revision with sha1 revision_sha1_git. Args: origin_id: origin of the revision branch_name: revision's branch timestamp: revision's time frame limit: the maximum number of revisions returned Returns: Revision information as dict. Raises: NotFoundExc if no revision corresponds to the criterion NotFoundExc if the corresponding revision has no log """ revision_entries = backend.revision_log_by(origin_id, branch_name, timestamp, limit) if not revision_entries: return None return map(converters.from_revision, revision_entries) def lookup_revision_with_context_by(origin_id, branch_name, ts, sha1_git, limit=100): """Return information about revision sha1_git, limited to the sub-graph of all transitive parents of sha1_git_root. sha1_git_root being resolved through the lookup of a revision by origin_id, branch_name and ts. In other words, sha1_git is an ancestor of sha1_git_root. Args: - origin_id: origin of the revision. - branch_name: revision's branch. - timestamp: revision's time frame. - sha1_git: one of sha1_git_root's ancestors. - limit: limit the lookup to 100 revisions back. Returns: Pair of (root_revision, revision). Information on sha1_git if it is an ancestor of sha1_git_root including children leading to sha1_git_root Raises: - BadInputExc in case of unknown algo_hash or bad hash. - NotFoundExc if either revision is not found or if sha1_git is not an ancestor of sha1_git_root. """ rev_root = backend.revision_get_by(origin_id, branch_name, ts) if not rev_root: raise NotFoundExc('Revision with (origin_id: %s, branch_name: %s' ', ts: %s) not found.' % (origin_id, branch_name, ts)) return (converters.from_revision(rev_root), lookup_revision_with_context(rev_root, sha1_git, limit)) def lookup_revision_with_context(sha1_git_root, sha1_git, limit=100): """Return information about revision sha1_git, limited to the sub-graph of all transitive parents of sha1_git_root. In other words, sha1_git is an ancestor of sha1_git_root. Args: sha1_git_root: latest revision. The type is either a sha1 (as an hex string) or a non converted dict. sha1_git: one of sha1_git_root's ancestors limit: limit the lookup to 100 revisions back Returns: Information on sha1_git if it is an ancestor of sha1_git_root including children leading to sha1_git_root Raises: BadInputExc in case of unknown algo_hash or bad hash NotFoundExc if either revision is not found or if sha1_git is not an ancestor of sha1_git_root """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( sha1_git, ['sha1'], 'Only sha1_git is supported.') revision = backend.revision_get(sha1_git_bin) if not revision: raise NotFoundExc('Revision %s not found' % sha1_git) if isinstance(sha1_git_root, str): _, sha1_git_root_bin = query.parse_hash_with_algorithms_or_throws( sha1_git_root, ['sha1'], 'Only sha1_git is supported.') revision_root = backend.revision_get(sha1_git_root_bin) if not revision_root: raise NotFoundExc('Revision root %s not found' % sha1_git_root) else: sha1_git_root_bin = sha1_git_root['id'] revision_log = backend.revision_log(sha1_git_root_bin, limit) parents = {} children = defaultdict(list) for rev in revision_log: rev_id = rev['id'] parents[rev_id] = [] for parent_id in rev['parents']: parents[rev_id].append(parent_id) children[parent_id].append(rev_id) if revision['id'] not in parents: raise NotFoundExc('Revision %s is not an ancestor of %s' % (sha1_git, sha1_git_root)) revision['children'] = children[revision['id']] return converters.from_revision(revision) def lookup_directory_with_revision(sha1_git, dir_path=None, with_data=False): """Return information on directory pointed by revision with sha1_git. If dir_path is not provided, display top level directory. Otherwise, display the directory pointed by dir_path (if it exists). Args: sha1_git: revision's hash. dir_path: optional directory pointed to by that revision. with_data: boolean that indicates to retrieve the raw data if the path resolves to a content. Default to False (for the api) Returns: Information on the directory pointed to by that revision. Raises: BadInputExc in case of unknown algo_hash or bad hash. NotFoundExc either if the revision is not found or the path referenced does not exist. NotImplementedError in case of dir_path exists but do not reference a type 'dir' or 'file'. """ _, sha1_git_bin = query.parse_hash_with_algorithms_or_throws( sha1_git, ['sha1'], 'Only sha1_git is supported.') revision = backend.revision_get(sha1_git_bin) if not revision: raise NotFoundExc('Revision %s not found' % sha1_git) dir_sha1_git_bin = revision['directory'] if dir_path: entity = backend.directory_entry_get_by_path(dir_sha1_git_bin, dir_path) if not entity: raise NotFoundExc( "Directory or File '%s' pointed to by revision %s not found" % (dir_path, sha1_git)) else: entity = {'type': 'dir', 'target': dir_sha1_git_bin} if entity['type'] == 'dir': directory_entries = backend.directory_ls(entity['target']) return {'type': 'dir', 'path': '.' if not dir_path else dir_path, 'revision': sha1_git, 'content': map(converters.from_directory_entry, directory_entries)} elif entity['type'] == 'file': # content content = backend.content_find('sha1_git', entity['target']) if with_data: content['data'] = backend.content_get(content['sha1'])['data'] return {'type': 'file', 'path': '.' if not dir_path else dir_path, 'revision': sha1_git, 'content': converters.from_content(content)} else: raise NotImplementedError('Entity of type %s not implemented.' % entity['type']) def lookup_content(q): """Lookup the content designed by q. Args: q: The release's sha1 as hexadecimal """ algo, hash = query.parse_hash(q) c = backend.content_find(algo, hash) return converters.from_content(c) def lookup_content_raw(q): """Lookup the content defined by q. Args: q: query string of the form Returns: dict with 'sha1' and 'data' keys. data representing its raw data decoded. """ algo, hash = query.parse_hash(q) c = backend.content_find(algo, hash) if not c: return None content = backend.content_get(c['sha1']) return converters.from_content(content) def stat_counters(): """Return the stat counters for Software Heritage Returns: A dict mapping textual labels to integer values. """ return backend.stat_counters() def lookup_origin_visits(origin_id, last_visit=None, per_page=10): """Yields the origin origin_ids' visits. Args: origin_id: origin to list visits for Yields: Dictionaries of origin_visit for that origin """ visits = backend.lookup_origin_visits( origin_id, last_visit=last_visit, limit=per_page) for visit in visits: yield converters.from_origin_visit(visit) def lookup_origin_visit(origin_id, visit_id): """Return information about visit visit_id with origin origin_id. Args: origin_id: origin concerned by the visit visit_id: the visit identifier to lookup Yields: The dict origin_visit concerned """ visit = backend.lookup_origin_visit(origin_id, visit_id) return converters.from_origin_visit(visit) def lookup_entity_by_uuid(uuid): """Return the entity's hierarchy from its uuid. Args: uuid: entity's identifier. Returns: List of hierarchy entities from the entity with uuid. """ uuid = query.parse_uuid4(uuid) for entity in backend.entity_get(uuid): entity = converters.from_swh(entity, convert={'last_seen', 'uuid'}, convert_fn=lambda x: str(x)) yield entity def lookup_revision_through(revision, limit=100): """Retrieve a revision from the criterion stored in revision dictionary. Args: revision: Dictionary of criterion to lookup the revision with. Here are the supported combination of possible values: - origin_id, branch_name, ts, sha1_git - origin_id, branch_name, ts - sha1_git_root, sha1_git - sha1_git Returns: None if the revision is not found or the actual revision. """ if 'origin_id' in revision and \ 'branch_name' in revision and \ 'ts' in revision and \ 'sha1_git' in revision: return lookup_revision_with_context_by(revision['origin_id'], revision['branch_name'], revision['ts'], revision['sha1_git'], limit) if 'origin_id' in revision and \ 'branch_name' in revision and \ 'ts' in revision: return lookup_revision_by(revision['origin_id'], revision['branch_name'], revision['ts']) if 'sha1_git_root' in revision and \ 'sha1_git' in revision: return lookup_revision_with_context(revision['sha1_git_root'], revision['sha1_git'], limit) if 'sha1_git' in revision: return lookup_revision(revision['sha1_git']) # this should not happen raise NotImplementedError('Should not happen!') def lookup_directory_through_revision(revision, path=None, limit=100, with_data=False): """Retrieve the directory information from the revision. Args: revision: dictionary of criterion representing a revision to lookup path: directory's path to lookup. limit: optional query parameter to limit the revisions log. (default to 100). For now, note that this limit could impede the transitivity conclusion about sha1_git not being an ancestor of. with_data: indicate to retrieve the content's raw data if path resolves to a content. Returns: The directory pointing to by the revision criterions at path. """ rev = lookup_revision_through(revision, limit) if not rev: raise NotFoundExc('Revision with criterion %s not found!' % revision) return (rev['id'], lookup_directory_with_revision(rev['id'], path, with_data))