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-rw-r--r--src/couchdb/couch_httpd_db.erl1214
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diff --git a/src/couchdb/couch_httpd_db.erl b/src/couchdb/couch_httpd_db.erl
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--- a/src/couchdb/couch_httpd_db.erl
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@@ -1,1214 +0,0 @@
-% Licensed under the Apache License, Version 2.0 (the "License"); you may not
-% use this file except in compliance with the License. You may obtain a copy of
-% the License at
-%
-% http://www.apache.org/licenses/LICENSE-2.0
-%
-% Unless required by applicable law or agreed to in writing, software
-% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
-% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
-% License for the specific language governing permissions and limitations under
-% the License.
-
--module(couch_httpd_db).
--include("couch_db.hrl").
-
--export([handle_request/1, handle_compact_req/2, handle_design_req/2,
- db_req/2, couch_doc_open/4,handle_changes_req/2,
- update_doc_result_to_json/1, update_doc_result_to_json/2,
- handle_design_info_req/3, handle_view_cleanup_req/2]).
-
--import(couch_httpd,
- [send_json/2,send_json/3,send_json/4,send_method_not_allowed/2,
- start_json_response/2,start_json_response/3,
- send_chunk/2,last_chunk/1,end_json_response/1,
- start_chunked_response/3, absolute_uri/2, send/2,
- start_response_length/4]).
-
--record(doc_query_args, {
- options = [],
- rev = nil,
- open_revs = [],
- update_type = interactive_edit,
- atts_since = nil
-}).
-
-% Database request handlers
-handle_request(#httpd{path_parts=[DbName|RestParts],method=Method,
- db_url_handlers=DbUrlHandlers}=Req)->
- case {Method, RestParts} of
- {'PUT', []} ->
- create_db_req(Req, DbName);
- {'DELETE', []} ->
- % if we get ?rev=... the user is using a faulty script where the
- % document id is empty by accident. Let them recover safely.
- case couch_httpd:qs_value(Req, "rev", false) of
- false -> delete_db_req(Req, DbName);
- _Rev -> throw({bad_request,
- "You tried to DELETE a database with a ?=rev parameter. "
- ++ "Did you mean to DELETE a document instead?"})
- end;
- {_, []} ->
- do_db_req(Req, fun db_req/2);
- {_, [SecondPart|_]} ->
- Handler = couch_util:dict_find(SecondPart, DbUrlHandlers, fun db_req/2),
- do_db_req(Req, Handler)
- end.
-
-handle_changes_req(#httpd{method='GET'}=Req, Db) ->
- MakeCallback = fun(Resp) ->
- fun({change, Change, _}, "continuous") ->
- send_chunk(Resp, [?JSON_ENCODE(Change) | "\n"]);
- ({change, Change, Prepend}, _) ->
- send_chunk(Resp, [Prepend, ?JSON_ENCODE(Change)]);
- (start, "continuous") ->
- ok;
- (start, _) ->
- send_chunk(Resp, "{\"results\":[\n");
- ({stop, EndSeq}, "continuous") ->
- send_chunk(
- Resp,
- [?JSON_ENCODE({[{<<"last_seq">>, EndSeq}]}) | "\n"]
- ),
- end_json_response(Resp);
- ({stop, EndSeq}, _) ->
- send_chunk(
- Resp,
- io_lib:format("\n],\n\"last_seq\":~w}\n", [EndSeq])
- ),
- end_json_response(Resp);
- (timeout, _) ->
- send_chunk(Resp, "\n")
- end
- end,
- ChangesArgs = parse_changes_query(Req),
- ChangesFun = couch_changes:handle_changes(ChangesArgs, Req, Db),
- WrapperFun = case ChangesArgs#changes_args.feed of
- "normal" ->
- {ok, Info} = couch_db:get_db_info(Db),
- CurrentEtag = couch_httpd:make_etag(Info),
- fun(FeedChangesFun) ->
- couch_httpd:etag_respond(
- Req,
- CurrentEtag,
- fun() ->
- {ok, Resp} = couch_httpd:start_json_response(
- Req, 200, [{"Etag", CurrentEtag}]
- ),
- FeedChangesFun(MakeCallback(Resp))
- end
- )
- end;
- _ ->
- % "longpoll" or "continuous"
- {ok, Resp} = couch_httpd:start_json_response(Req, 200),
- fun(FeedChangesFun) ->
- FeedChangesFun(MakeCallback(Resp))
- end
- end,
- couch_stats_collector:track_process_count(
- {httpd, clients_requesting_changes}
- ),
- WrapperFun(ChangesFun);
-
-handle_changes_req(#httpd{path_parts=[_,<<"_changes">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "GET,HEAD").
-
-handle_compact_req(#httpd{method='POST',path_parts=[DbName,_,Id|_]}=Req, Db) ->
- ok = couch_db:check_is_admin(Db),
- couch_httpd:validate_ctype(Req, "application/json"),
- ok = couch_view_compactor:start_compact(DbName, Id),
- send_json(Req, 202, {[{ok, true}]});
-
-handle_compact_req(#httpd{method='POST'}=Req, Db) ->
- ok = couch_db:check_is_admin(Db),
- couch_httpd:validate_ctype(Req, "application/json"),
- ok = couch_db:start_compact(Db),
- send_json(Req, 202, {[{ok, true}]});
-
-handle_compact_req(Req, _Db) ->
- send_method_not_allowed(Req, "POST").
-
-handle_view_cleanup_req(#httpd{method='POST'}=Req, Db) ->
- % delete unreferenced index files
- ok = couch_db:check_is_admin(Db),
- couch_httpd:validate_ctype(Req, "application/json"),
- ok = couch_view:cleanup_index_files(Db),
- send_json(Req, 202, {[{ok, true}]});
-
-handle_view_cleanup_req(Req, _Db) ->
- send_method_not_allowed(Req, "POST").
-
-
-handle_design_req(#httpd{
- path_parts=[_DbName, _Design, DesignName, <<"_",_/binary>> = Action | _Rest],
- design_url_handlers = DesignUrlHandlers
- }=Req, Db) ->
- % load ddoc
- DesignId = <<"_design/", DesignName/binary>>,
- DDoc = couch_httpd_db:couch_doc_open(Db, DesignId, nil, []),
- Handler = couch_util:dict_find(Action, DesignUrlHandlers, fun(_, _, _) ->
- throw({not_found, <<"missing handler: ", Action/binary>>})
- end),
- Handler(Req, Db, DDoc);
-
-handle_design_req(Req, Db) ->
- db_req(Req, Db).
-
-handle_design_info_req(#httpd{
- method='GET',
- path_parts=[_DbName, _Design, DesignName, _]
- }=Req, Db, _DDoc) ->
- DesignId = <<"_design/", DesignName/binary>>,
- {ok, GroupInfoList} = couch_view:get_group_info(Db, DesignId),
- send_json(Req, 200, {[
- {name, DesignName},
- {view_index, {GroupInfoList}}
- ]});
-
-handle_design_info_req(Req, _Db, _DDoc) ->
- send_method_not_allowed(Req, "GET").
-
-create_db_req(#httpd{user_ctx=UserCtx}=Req, DbName) ->
- ok = couch_httpd:verify_is_server_admin(Req),
- case couch_server:create(DbName, [{user_ctx, UserCtx}]) of
- {ok, Db} ->
- couch_db:close(Db),
- DbUrl = absolute_uri(Req, "/" ++ couch_util:url_encode(DbName)),
- send_json(Req, 201, [{"Location", DbUrl}], {[{ok, true}]});
- Error ->
- throw(Error)
- end.
-
-delete_db_req(#httpd{user_ctx=UserCtx}=Req, DbName) ->
- ok = couch_httpd:verify_is_server_admin(Req),
- case couch_server:delete(DbName, [{user_ctx, UserCtx}]) of
- ok ->
- send_json(Req, 200, {[{ok, true}]});
- Error ->
- throw(Error)
- end.
-
-do_db_req(#httpd{user_ctx=UserCtx,path_parts=[DbName|_]}=Req, Fun) ->
- case couch_db:open(DbName, [{user_ctx, UserCtx}]) of
- {ok, Db} ->
- try
- Fun(Req, Db)
- after
- catch couch_db:close(Db)
- end;
- Error ->
- throw(Error)
- end.
-
-db_req(#httpd{method='GET',path_parts=[_DbName]}=Req, Db) ->
- {ok, DbInfo} = couch_db:get_db_info(Db),
- send_json(Req, {DbInfo});
-
-db_req(#httpd{method='POST',path_parts=[DbName]}=Req, Db) ->
- couch_httpd:validate_ctype(Req, "application/json"),
- Doc = couch_doc:from_json_obj(couch_httpd:json_body(Req)),
- Doc2 = case Doc#doc.id of
- <<"">> ->
- Doc#doc{id=couch_uuids:new(), revs={0, []}};
- _ ->
- Doc
- end,
- DocId = Doc2#doc.id,
- case couch_httpd:qs_value(Req, "batch") of
- "ok" ->
- % async_batching
- spawn(fun() ->
- case catch(couch_db:update_doc(Db, Doc2, [])) of
- {ok, _} -> ok;
- Error ->
- ?LOG_INFO("Batch doc error (~s): ~p",[DocId, Error])
- end
- end),
-
- send_json(Req, 202, [], {[
- {ok, true},
- {id, DocId}
- ]});
- _Normal ->
- % normal
- {ok, NewRev} = couch_db:update_doc(Db, Doc2, []),
- DocUrl = absolute_uri(
- Req, binary_to_list(<<"/",DbName/binary,"/", DocId/binary>>)),
- send_json(Req, 201, [{"Location", DocUrl}], {[
- {ok, true},
- {id, DocId},
- {rev, couch_doc:rev_to_str(NewRev)}
- ]})
- end;
-
-
-db_req(#httpd{path_parts=[_DbName]}=Req, _Db) ->
- send_method_not_allowed(Req, "DELETE,GET,HEAD,POST");
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_ensure_full_commit">>]}=Req, Db) ->
- couch_httpd:validate_ctype(Req, "application/json"),
- UpdateSeq = couch_db:get_update_seq(Db),
- CommittedSeq = couch_db:get_committed_update_seq(Db),
- {ok, StartTime} =
- case couch_httpd:qs_value(Req, "seq") of
- undefined ->
- couch_db:ensure_full_commit(Db);
- RequiredStr ->
- RequiredSeq = list_to_integer(RequiredStr),
- if RequiredSeq > UpdateSeq ->
- throw({bad_request,
- "can't do a full commit ahead of current update_seq"});
- RequiredSeq > CommittedSeq ->
- couch_db:ensure_full_commit(Db);
- true ->
- {ok, Db#db.instance_start_time}
- end
- end,
- send_json(Req, 201, {[
- {ok, true},
- {instance_start_time, StartTime}
- ]});
-
-db_req(#httpd{path_parts=[_,<<"_ensure_full_commit">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "POST");
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_bulk_docs">>]}=Req, Db) ->
- couch_stats_collector:increment({httpd, bulk_requests}),
- couch_httpd:validate_ctype(Req, "application/json"),
- {JsonProps} = couch_httpd:json_body_obj(Req),
- DocsArray = couch_util:get_value(<<"docs">>, JsonProps),
- case couch_httpd:header_value(Req, "X-Couch-Full-Commit") of
- "true" ->
- Options = [full_commit];
- "false" ->
- Options = [delay_commit];
- _ ->
- Options = []
- end,
- case couch_util:get_value(<<"new_edits">>, JsonProps, true) of
- true ->
- Docs = lists:map(
- fun({ObjProps} = JsonObj) ->
- Doc = couch_doc:from_json_obj(JsonObj),
- validate_attachment_names(Doc),
- Id = case Doc#doc.id of
- <<>> -> couch_uuids:new();
- Id0 -> Id0
- end,
- case couch_util:get_value(<<"_rev">>, ObjProps) of
- undefined ->
- Revs = {0, []};
- Rev ->
- {Pos, RevId} = couch_doc:parse_rev(Rev),
- Revs = {Pos, [RevId]}
- end,
- Doc#doc{id=Id,revs=Revs}
- end,
- DocsArray),
- Options2 =
- case couch_util:get_value(<<"all_or_nothing">>, JsonProps) of
- true -> [all_or_nothing|Options];
- _ -> Options
- end,
- case couch_db:update_docs(Db, Docs, Options2) of
- {ok, Results} ->
- % output the results
- DocResults = lists:zipwith(fun update_doc_result_to_json/2,
- Docs, Results),
- send_json(Req, 201, DocResults);
- {aborted, Errors} ->
- ErrorsJson =
- lists:map(fun update_doc_result_to_json/1, Errors),
- send_json(Req, 417, ErrorsJson)
- end;
- false ->
- Docs = lists:map(fun(JsonObj) ->
- Doc = couch_doc:from_json_obj(JsonObj),
- validate_attachment_names(Doc),
- Doc
- end, DocsArray),
- {ok, Errors} = couch_db:update_docs(Db, Docs, Options, replicated_changes),
- ErrorsJson =
- lists:map(fun update_doc_result_to_json/1, Errors),
- send_json(Req, 201, ErrorsJson)
- end;
-db_req(#httpd{path_parts=[_,<<"_bulk_docs">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "POST");
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_purge">>]}=Req, Db) ->
- couch_httpd:validate_ctype(Req, "application/json"),
- {IdsRevs} = couch_httpd:json_body_obj(Req),
- IdsRevs2 = [{Id, couch_doc:parse_revs(Revs)} || {Id, Revs} <- IdsRevs],
-
- case couch_db:purge_docs(Db, IdsRevs2) of
- {ok, PurgeSeq, PurgedIdsRevs} ->
- PurgedIdsRevs2 = [{Id, couch_doc:revs_to_strs(Revs)} || {Id, Revs} <- PurgedIdsRevs],
- send_json(Req, 200, {[{<<"purge_seq">>, PurgeSeq}, {<<"purged">>, {PurgedIdsRevs2}}]});
- Error ->
- throw(Error)
- end;
-
-db_req(#httpd{path_parts=[_,<<"_purge">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "POST");
-
-db_req(#httpd{method='GET',path_parts=[_,<<"_all_docs">>]}=Req, Db) ->
- all_docs_view(Req, Db, nil);
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_all_docs">>]}=Req, Db) ->
- {Fields} = couch_httpd:json_body_obj(Req),
- case couch_util:get_value(<<"keys">>, Fields, nil) of
- nil ->
- ?LOG_DEBUG("POST to _all_docs with no keys member.", []),
- all_docs_view(Req, Db, nil);
- Keys when is_list(Keys) ->
- all_docs_view(Req, Db, Keys);
- _ ->
- throw({bad_request, "`keys` member must be a array."})
- end;
-
-db_req(#httpd{path_parts=[_,<<"_all_docs">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "GET,HEAD,POST");
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_missing_revs">>]}=Req, Db) ->
- {JsonDocIdRevs} = couch_httpd:json_body_obj(Req),
- JsonDocIdRevs2 = [{Id, [couch_doc:parse_rev(RevStr) || RevStr <- RevStrs]} || {Id, RevStrs} <- JsonDocIdRevs],
- {ok, Results} = couch_db:get_missing_revs(Db, JsonDocIdRevs2),
- Results2 = [{Id, couch_doc:revs_to_strs(Revs)} || {Id, Revs, _} <- Results],
- send_json(Req, {[
- {missing_revs, {Results2}}
- ]});
-
-db_req(#httpd{path_parts=[_,<<"_missing_revs">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "POST");
-
-db_req(#httpd{method='POST',path_parts=[_,<<"_revs_diff">>]}=Req, Db) ->
- {JsonDocIdRevs} = couch_httpd:json_body_obj(Req),
- JsonDocIdRevs2 =
- [{Id, couch_doc:parse_revs(RevStrs)} || {Id, RevStrs} <- JsonDocIdRevs],
- {ok, Results} = couch_db:get_missing_revs(Db, JsonDocIdRevs2),
- Results2 =
- lists:map(fun({Id, MissingRevs, PossibleAncestors}) ->
- {Id,
- {[{missing, couch_doc:revs_to_strs(MissingRevs)}] ++
- if PossibleAncestors == [] ->
- [];
- true ->
- [{possible_ancestors,
- couch_doc:revs_to_strs(PossibleAncestors)}]
- end}}
- end, Results),
- send_json(Req, {Results2});
-
-db_req(#httpd{path_parts=[_,<<"_revs_diff">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "POST");
-
-db_req(#httpd{method='PUT',path_parts=[_,<<"_security">>]}=Req, Db) ->
- SecObj = couch_httpd:json_body(Req),
- ok = couch_db:set_security(Db, SecObj),
- send_json(Req, {[{<<"ok">>, true}]});
-
-db_req(#httpd{method='GET',path_parts=[_,<<"_security">>]}=Req, Db) ->
- send_json(Req, couch_db:get_security(Db));
-
-db_req(#httpd{path_parts=[_,<<"_security">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "PUT,GET");
-
-db_req(#httpd{method='PUT',path_parts=[_,<<"_revs_limit">>]}=Req,
- Db) ->
- Limit = couch_httpd:json_body(Req),
- ok = couch_db:set_revs_limit(Db, Limit),
- send_json(Req, {[{<<"ok">>, true}]});
-
-db_req(#httpd{method='GET',path_parts=[_,<<"_revs_limit">>]}=Req, Db) ->
- send_json(Req, couch_db:get_revs_limit(Db));
-
-db_req(#httpd{path_parts=[_,<<"_revs_limit">>]}=Req, _Db) ->
- send_method_not_allowed(Req, "PUT,GET");
-
-% Special case to enable using an unencoded slash in the URL of design docs,
-% as slashes in document IDs must otherwise be URL encoded.
-db_req(#httpd{method='GET',mochi_req=MochiReq, path_parts=[DbName,<<"_design/",_/binary>>|_]}=Req, _Db) ->
- PathFront = "/" ++ couch_httpd:quote(binary_to_list(DbName)) ++ "/",
- [_|PathTail] = re:split(MochiReq:get(raw_path), "_design%2F",
- [{return, list}]),
- couch_httpd:send_redirect(Req, PathFront ++ "_design/" ++
- mochiweb_util:join(PathTail, "_design%2F"));
-
-db_req(#httpd{path_parts=[_DbName,<<"_design">>,Name]}=Req, Db) ->
- db_doc_req(Req, Db, <<"_design/",Name/binary>>);
-
-db_req(#httpd{path_parts=[_DbName,<<"_design">>,Name|FileNameParts]}=Req, Db) ->
- db_attachment_req(Req, Db, <<"_design/",Name/binary>>, FileNameParts);
-
-
-% Special case to allow for accessing local documents without %2F
-% encoding the docid. Throws out requests that don't have the second
-% path part or that specify an attachment name.
-db_req(#httpd{path_parts=[_DbName, <<"_local">>]}, _Db) ->
- throw({bad_request, <<"Invalid _local document id.">>});
-
-db_req(#httpd{path_parts=[_DbName, <<"_local/">>]}, _Db) ->
- throw({bad_request, <<"Invalid _local document id.">>});
-
-db_req(#httpd{path_parts=[_DbName, <<"_local">>, Name]}=Req, Db) ->
- db_doc_req(Req, Db, <<"_local/", Name/binary>>);
-
-db_req(#httpd{path_parts=[_DbName, <<"_local">> | _Rest]}, _Db) ->
- throw({bad_request, <<"_local documents do not accept attachments.">>});
-
-db_req(#httpd{path_parts=[_, DocId]}=Req, Db) ->
- db_doc_req(Req, Db, DocId);
-
-db_req(#httpd{path_parts=[_, DocId | FileNameParts]}=Req, Db) ->
- db_attachment_req(Req, Db, DocId, FileNameParts).
-
-all_docs_view(Req, Db, Keys) ->
- #view_query_args{
- start_key = StartKey,
- start_docid = StartDocId,
- end_key = EndKey,
- end_docid = EndDocId,
- limit = Limit,
- skip = SkipCount,
- direction = Dir,
- inclusive_end = Inclusive
- } = QueryArgs = couch_httpd_view:parse_view_params(Req, Keys, map),
- {ok, Info} = couch_db:get_db_info(Db),
- CurrentEtag = couch_httpd:make_etag(Info),
- couch_httpd:etag_respond(Req, CurrentEtag, fun() ->
-
- TotalRowCount = couch_util:get_value(doc_count, Info),
- StartId = if is_binary(StartKey) -> StartKey;
- true -> StartDocId
- end,
- EndId = if is_binary(EndKey) -> EndKey;
- true -> EndDocId
- end,
- FoldAccInit = {Limit, SkipCount, undefined, []},
- UpdateSeq = couch_db:get_update_seq(Db),
- JsonParams = case couch_httpd:qs_value(Req, "update_seq") of
- "true" ->
- [{update_seq, UpdateSeq}];
- _Else ->
- []
- end,
- case Keys of
- nil ->
- FoldlFun = couch_httpd_view:make_view_fold_fun(Req, QueryArgs, CurrentEtag, Db, UpdateSeq,
- TotalRowCount, #view_fold_helper_funs{
- reduce_count = fun couch_db:enum_docs_reduce_to_count/1
- }),
- AdapterFun = fun(#full_doc_info{id=Id}=FullDocInfo, Offset, Acc) ->
- case couch_doc:to_doc_info(FullDocInfo) of
- #doc_info{revs=[#rev_info{deleted=false, rev=Rev}|_]} ->
- FoldlFun({{Id, Id}, {[{rev, couch_doc:rev_to_str(Rev)}]}}, Offset, Acc);
- #doc_info{revs=[#rev_info{deleted=true}|_]} ->
- {ok, Acc}
- end
- end,
- {ok, LastOffset, FoldResult} = couch_db:enum_docs(Db,
- AdapterFun, FoldAccInit, [{start_key, StartId}, {dir, Dir},
- {if Inclusive -> end_key; true -> end_key_gt end, EndId}]),
- couch_httpd_view:finish_view_fold(Req, TotalRowCount, LastOffset, FoldResult, JsonParams);
- _ ->
- FoldlFun = couch_httpd_view:make_view_fold_fun(Req, QueryArgs, CurrentEtag, Db, UpdateSeq,
- TotalRowCount, #view_fold_helper_funs{
- reduce_count = fun(Offset) -> Offset end
- }),
- KeyFoldFun = case Dir of
- fwd ->
- fun lists:foldl/3;
- rev ->
- fun lists:foldr/3
- end,
- FoldResult = KeyFoldFun(
- fun(Key, FoldAcc) ->
- DocInfo = (catch couch_db:get_doc_info(Db, Key)),
- Doc = case DocInfo of
- {ok, #doc_info{id=Id, revs=[#rev_info{deleted=false, rev=Rev}|_]}} ->
- {{Id, Id}, {[{rev, couch_doc:rev_to_str(Rev)}]}};
- {ok, #doc_info{id=Id, revs=[#rev_info{deleted=true, rev=Rev}|_]}} ->
- {{Id, Id}, {[{rev, couch_doc:rev_to_str(Rev)}, {deleted, true}]}};
- not_found ->
- {{Key, error}, not_found};
- _ ->
- ?LOG_ERROR("Invalid DocInfo: ~p", [DocInfo]),
- throw({error, invalid_doc_info})
- end,
- {_, FoldAcc2} = FoldlFun(Doc, 0, FoldAcc),
- FoldAcc2
- end, FoldAccInit, Keys),
- couch_httpd_view:finish_view_fold(Req, TotalRowCount, 0, FoldResult, JsonParams)
- end
- end).
-
-db_doc_req(#httpd{method='DELETE'}=Req, Db, DocId) ->
- % check for the existence of the doc to handle the 404 case.
- couch_doc_open(Db, DocId, nil, []),
- case couch_httpd:qs_value(Req, "rev") of
- undefined ->
- update_doc(Req, Db, DocId,
- couch_doc_from_req(Req, DocId, {[{<<"_deleted">>,true}]}));
- Rev ->
- update_doc(Req, Db, DocId,
- couch_doc_from_req(Req, DocId,
- {[{<<"_rev">>, ?l2b(Rev)},{<<"_deleted">>,true}]}))
- end;
-
-db_doc_req(#httpd{method='GET'}=Req, Db, DocId) ->
- #doc_query_args{
- rev = Rev,
- open_revs = Revs,
- options = Options,
- atts_since = AttsSince
- } = parse_doc_query(Req),
- case Revs of
- [] ->
- Options2 =
- if AttsSince /= nil ->
- [{atts_since, AttsSince}, attachments | Options];
- true -> Options
- end,
- Doc = couch_doc_open(Db, DocId, Rev, Options2),
- send_doc(Req, Doc, Options2);
- _ ->
- {ok, Results} = couch_db:open_doc_revs(Db, DocId, Revs, Options),
- AcceptedTypes = case couch_httpd:header_value(Req, "Accept") of
- undefined -> [];
- AcceptHeader -> string:tokens(AcceptHeader, "; ")
- end,
- case lists:member("multipart/mixed", AcceptedTypes) of
- false ->
- {ok, Resp} = start_json_response(Req, 200),
- send_chunk(Resp, "["),
- % We loop through the docs. The first time through the separator
- % is whitespace, then a comma on subsequent iterations.
- lists:foldl(
- fun(Result, AccSeparator) ->
- case Result of
- {ok, Doc} ->
- JsonDoc = couch_doc:to_json_obj(Doc, Options),
- Json = ?JSON_ENCODE({[{ok, JsonDoc}]}),
- send_chunk(Resp, AccSeparator ++ Json);
- {{not_found, missing}, RevId} ->
- RevStr = couch_doc:rev_to_str(RevId),
- Json = ?JSON_ENCODE({[{"missing", RevStr}]}),
- send_chunk(Resp, AccSeparator ++ Json)
- end,
- "," % AccSeparator now has a comma
- end,
- "", Results),
- send_chunk(Resp, "]"),
- end_json_response(Resp);
- true ->
- send_docs_multipart(Req, Results, Options)
- end
- end;
-
-
-db_doc_req(#httpd{method='POST'}=Req, Db, DocId) ->
- couch_httpd:validate_referer(Req),
- couch_doc:validate_docid(DocId),
- couch_httpd:validate_ctype(Req, "multipart/form-data"),
- Form = couch_httpd:parse_form(Req),
- case proplists:is_defined("_doc", Form) of
- true ->
- Json = ?JSON_DECODE(couch_util:get_value("_doc", Form)),
- Doc = couch_doc_from_req(Req, DocId, Json);
- false ->
- Rev = couch_doc:parse_rev(list_to_binary(couch_util:get_value("_rev", Form))),
- {ok, [{ok, Doc}]} = couch_db:open_doc_revs(Db, DocId, [Rev], [])
- end,
- UpdatedAtts = [
- #att{name=validate_attachment_name(Name),
- type=list_to_binary(ContentType),
- data=Content} ||
- {Name, {ContentType, _}, Content} <-
- proplists:get_all_values("_attachments", Form)
- ],
- #doc{atts=OldAtts} = Doc,
- OldAtts2 = lists:flatmap(
- fun(#att{name=OldName}=Att) ->
- case [1 || A <- UpdatedAtts, A#att.name == OldName] of
- [] -> [Att]; % the attachment wasn't in the UpdatedAtts, return it
- _ -> [] % the attachment was in the UpdatedAtts, drop it
- end
- end, OldAtts),
- NewDoc = Doc#doc{
- atts = UpdatedAtts ++ OldAtts2
- },
- {ok, NewRev} = couch_db:update_doc(Db, NewDoc, []),
-
- send_json(Req, 201, [{"Etag", "\"" ++ ?b2l(couch_doc:rev_to_str(NewRev)) ++ "\""}], {[
- {ok, true},
- {id, DocId},
- {rev, couch_doc:rev_to_str(NewRev)}
- ]});
-
-db_doc_req(#httpd{method='PUT'}=Req, Db, DocId) ->
- #doc_query_args{
- update_type = UpdateType
- } = parse_doc_query(Req),
- couch_doc:validate_docid(DocId),
-
- Loc = absolute_uri(Req, "/" ++ ?b2l(Db#db.name) ++ "/" ++ ?b2l(DocId)),
- RespHeaders = [{"Location", Loc}],
- case couch_util:to_list(couch_httpd:header_value(Req, "Content-Type")) of
- ("multipart/related;" ++ _) = ContentType ->
- {ok, Doc0} = couch_doc:doc_from_multi_part_stream(ContentType,
- fun() -> receive_request_data(Req) end),
- Doc = couch_doc_from_req(Req, DocId, Doc0),
- update_doc(Req, Db, DocId, Doc, RespHeaders, UpdateType);
- _Else ->
- case couch_httpd:qs_value(Req, "batch") of
- "ok" ->
- % batch
- Doc = couch_doc_from_req(Req, DocId, couch_httpd:json_body(Req)),
-
- spawn(fun() ->
- case catch(couch_db:update_doc(Db, Doc, [])) of
- {ok, _} -> ok;
- Error ->
- ?LOG_INFO("Batch doc error (~s): ~p",[DocId, Error])
- end
- end),
- send_json(Req, 202, [], {[
- {ok, true},
- {id, DocId}
- ]});
- _Normal ->
- % normal
- Body = couch_httpd:json_body(Req),
- Doc = couch_doc_from_req(Req, DocId, Body),
- update_doc(Req, Db, DocId, Doc, RespHeaders, UpdateType)
- end
- end;
-
-db_doc_req(#httpd{method='COPY'}=Req, Db, SourceDocId) ->
- SourceRev =
- case extract_header_rev(Req, couch_httpd:qs_value(Req, "rev")) of
- missing_rev -> nil;
- Rev -> Rev
- end,
- {TargetDocId, TargetRevs} = parse_copy_destination_header(Req),
- % open old doc
- Doc = couch_doc_open(Db, SourceDocId, SourceRev, []),
- % save new doc
- {ok, NewTargetRev} = couch_db:update_doc(Db,
- Doc#doc{id=TargetDocId, revs=TargetRevs}, []),
- % respond
- send_json(Req, 201,
- [{"Etag", "\"" ++ ?b2l(couch_doc:rev_to_str(NewTargetRev)) ++ "\""}],
- update_doc_result_to_json(TargetDocId, {ok, NewTargetRev}));
-
-db_doc_req(Req, _Db, _DocId) ->
- send_method_not_allowed(Req, "DELETE,GET,HEAD,POST,PUT,COPY").
-
-
-send_doc(Req, Doc, Options) ->
- case Doc#doc.meta of
- [] ->
- DiskEtag = couch_httpd:doc_etag(Doc),
- % output etag only when we have no meta
- couch_httpd:etag_respond(Req, DiskEtag, fun() ->
- send_doc_efficiently(Req, Doc, [{"Etag", DiskEtag}], Options)
- end);
- _ ->
- send_doc_efficiently(Req, Doc, [], Options)
- end.
-
-
-send_doc_efficiently(Req, #doc{atts=[]}=Doc, Headers, Options) ->
- send_json(Req, 200, Headers, couch_doc:to_json_obj(Doc, Options));
-send_doc_efficiently(Req, #doc{atts=Atts}=Doc, Headers, Options) ->
- case lists:member(attachments, Options) of
- true ->
- AcceptedTypes = case couch_httpd:header_value(Req, "Accept") of
- undefined -> [];
- AcceptHeader -> string:tokens(AcceptHeader, ", ")
- end,
- case lists:member("multipart/related", AcceptedTypes) of
- false ->
- send_json(Req, 200, Headers, couch_doc:to_json_obj(Doc, Options));
- true ->
- Boundary = couch_uuids:random(),
- JsonBytes = ?JSON_ENCODE(couch_doc:to_json_obj(Doc,
- [attachments, follows|Options])),
- {ContentType, Len} = couch_doc:len_doc_to_multi_part_stream(
- Boundary,JsonBytes, Atts,false),
- CType = {<<"Content-Type">>, ContentType},
- {ok, Resp} = start_response_length(Req, 200, [CType|Headers], Len),
- couch_doc:doc_to_multi_part_stream(Boundary,JsonBytes,Atts,
- fun(Data) -> couch_httpd:send(Resp, Data) end, false)
- end;
- false ->
- send_json(Req, 200, Headers, couch_doc:to_json_obj(Doc, Options))
- end.
-
-send_docs_multipart(Req, Results, Options) ->
- OuterBoundary = couch_uuids:random(),
- InnerBoundary = couch_uuids:random(),
- CType = {"Content-Type",
- "multipart/mixed; boundary=\"" ++ ?b2l(OuterBoundary) ++ "\""},
- {ok, Resp} = start_chunked_response(Req, 200, [CType]),
- couch_httpd:send_chunk(Resp, <<"--", OuterBoundary/binary>>),
- lists:foreach(
- fun({ok, #doc{atts=Atts}=Doc}) ->
- JsonBytes = ?JSON_ENCODE(couch_doc:to_json_obj(Doc,
- [attachments,follows|Options])),
- {ContentType, _Len} = couch_doc:len_doc_to_multi_part_stream(
- InnerBoundary, JsonBytes, Atts, false),
- couch_httpd:send_chunk(Resp, <<"\r\nContent-Type: ",
- ContentType/binary, "\r\n\r\n">>),
- couch_doc:doc_to_multi_part_stream(InnerBoundary, JsonBytes, Atts,
- fun(Data) -> couch_httpd:send_chunk(Resp, Data)
- end, false),
- couch_httpd:send_chunk(Resp, <<"\r\n--", OuterBoundary/binary>>);
- ({{not_found, missing}, RevId}) ->
- RevStr = couch_doc:rev_to_str(RevId),
- Json = ?JSON_ENCODE({[{"missing", RevStr}]}),
- couch_httpd:send_chunk(Resp,
- [<<"\r\nContent-Type: application/json; error=\"true\"\r\n\r\n">>,
- Json,
- <<"\r\n--", OuterBoundary/binary>>])
- end, Results),
- couch_httpd:send_chunk(Resp, <<"--">>),
- couch_httpd:last_chunk(Resp).
-
-receive_request_data(Req) ->
- {couch_httpd:recv(Req, 0), fun() -> receive_request_data(Req) end}.
-
-update_doc_result_to_json({{Id, Rev}, Error}) ->
- {_Code, Err, Msg} = couch_httpd:error_info(Error),
- {[{id, Id}, {rev, couch_doc:rev_to_str(Rev)},
- {error, Err}, {reason, Msg}]}.
-
-update_doc_result_to_json(#doc{id=DocId}, Result) ->
- update_doc_result_to_json(DocId, Result);
-update_doc_result_to_json(DocId, {ok, NewRev}) ->
- {[{id, DocId}, {rev, couch_doc:rev_to_str(NewRev)}]};
-update_doc_result_to_json(DocId, Error) ->
- {_Code, ErrorStr, Reason} = couch_httpd:error_info(Error),
- {[{id, DocId}, {error, ErrorStr}, {reason, Reason}]}.
-
-
-update_doc(Req, Db, DocId, Doc) ->
- update_doc(Req, Db, DocId, Doc, []).
-
-update_doc(Req, Db, DocId, Doc, Headers) ->
- update_doc(Req, Db, DocId, Doc, Headers, interactive_edit).
-
-update_doc(Req, Db, DocId, #doc{deleted=Deleted}=Doc, Headers, UpdateType) ->
- case couch_httpd:header_value(Req, "X-Couch-Full-Commit") of
- "true" ->
- Options = [full_commit];
- "false" ->
- Options = [delay_commit];
- _ ->
- Options = []
- end,
- {ok, NewRev} = couch_db:update_doc(Db, Doc, Options, UpdateType),
- NewRevStr = couch_doc:rev_to_str(NewRev),
- ResponseHeaders = [{"Etag", <<"\"", NewRevStr/binary, "\"">>}] ++ Headers,
- send_json(Req, if Deleted -> 200; true -> 201 end,
- ResponseHeaders, {[
- {ok, true},
- {id, DocId},
- {rev, NewRevStr}]}).
-
-couch_doc_from_req(Req, DocId, #doc{revs=Revs}=Doc) ->
- validate_attachment_names(Doc),
- ExplicitDocRev =
- case Revs of
- {Start,[RevId|_]} -> {Start, RevId};
- _ -> undefined
- end,
- case extract_header_rev(Req, ExplicitDocRev) of
- missing_rev ->
- Revs2 = {0, []};
- ExplicitDocRev ->
- Revs2 = Revs;
- {Pos, Rev} ->
- Revs2 = {Pos, [Rev]}
- end,
- Doc#doc{id=DocId, revs=Revs2};
-couch_doc_from_req(Req, DocId, Json) ->
- couch_doc_from_req(Req, DocId, couch_doc:from_json_obj(Json)).
-
-
-% Useful for debugging
-% couch_doc_open(Db, DocId) ->
-% couch_doc_open(Db, DocId, nil, []).
-
-couch_doc_open(Db, DocId, Rev, Options) ->
- case Rev of
- nil -> % open most recent rev
- case couch_db:open_doc(Db, DocId, Options) of
- {ok, Doc} ->
- Doc;
- Error ->
- throw(Error)
- end;
- _ -> % open a specific rev (deletions come back as stubs)
- case couch_db:open_doc_revs(Db, DocId, [Rev], Options) of
- {ok, [{ok, Doc}]} ->
- Doc;
- {ok, [{{not_found, missing}, Rev}]} ->
- throw(not_found);
- {ok, [Else]} ->
- throw(Else)
- end
- end.
-
-% Attachment request handlers
-
-db_attachment_req(#httpd{method='GET'}=Req, Db, DocId, FileNameParts) ->
- FileName = list_to_binary(mochiweb_util:join(lists:map(fun binary_to_list/1, FileNameParts),"/")),
- #doc_query_args{
- rev=Rev,
- options=Options
- } = parse_doc_query(Req),
- #doc{
- atts=Atts
- } = Doc = couch_doc_open(Db, DocId, Rev, Options),
- case [A || A <- Atts, A#att.name == FileName] of
- [] ->
- throw({not_found, "Document is missing attachment"});
- [#att{type=Type, encoding=Enc, disk_len=DiskLen, att_len=AttLen}=Att] ->
- Etag = couch_httpd:doc_etag(Doc),
- ReqAcceptsAttEnc = lists:member(
- atom_to_list(Enc),
- couch_httpd:accepted_encodings(Req)
- ),
- Headers = [
- {"ETag", Etag},
- {"Cache-Control", "must-revalidate"},
- {"Content-Type", binary_to_list(Type)}
- ] ++ case ReqAcceptsAttEnc of
- true ->
- [{"Content-Encoding", atom_to_list(Enc)}];
- _ ->
- []
- end,
- Len = case {Enc, ReqAcceptsAttEnc} of
- {identity, _} ->
- % stored and served in identity form
- DiskLen;
- {_, false} when DiskLen =/= AttLen ->
- % Stored encoded, but client doesn't accept the encoding we used,
- % so we need to decode on the fly. DiskLen is the identity length
- % of the attachment.
- DiskLen;
- {_, true} ->
- % Stored and served encoded. AttLen is the encoded length.
- AttLen;
- _ ->
- % We received an encoded attachment and stored it as such, so we
- % don't know the identity length. The client doesn't accept the
- % encoding, and since we cannot serve a correct Content-Length
- % header we'll fall back to a chunked response.
- undefined
- end,
- AttFun = case ReqAcceptsAttEnc of
- false ->
- fun couch_doc:att_foldl_decode/3;
- true ->
- fun couch_doc:att_foldl/3
- end,
- couch_httpd:etag_respond(
- Req,
- Etag,
- fun() ->
- case Len of
- undefined ->
- {ok, Resp} = start_chunked_response(Req, 200, Headers),
- AttFun(Att, fun(Seg, _) -> send_chunk(Resp, Seg) end, ok),
- last_chunk(Resp);
- _ ->
- {ok, Resp} = start_response_length(Req, 200, Headers, Len),
- AttFun(Att, fun(Seg, _) -> send(Resp, Seg) end, ok)
- end
- end
- )
- end;
-
-
-db_attachment_req(#httpd{method=Method,mochi_req=MochiReq}=Req, Db, DocId, FileNameParts)
- when (Method == 'PUT') or (Method == 'DELETE') ->
- FileName = validate_attachment_name(
- mochiweb_util:join(
- lists:map(fun binary_to_list/1,
- FileNameParts),"/")),
-
- NewAtt = case Method of
- 'DELETE' ->
- [];
- _ ->
- [#att{
- name = FileName,
- type = case couch_httpd:header_value(Req,"Content-Type") of
- undefined ->
- % We could throw an error here or guess by the FileName.
- % Currently, just giving it a default.
- <<"application/octet-stream">>;
- CType ->
- list_to_binary(CType)
- end,
- data = case couch_httpd:body_length(Req) of
- undefined ->
- <<"">>;
- {unknown_transfer_encoding, Unknown} ->
- exit({unknown_transfer_encoding, Unknown});
- chunked ->
- fun(MaxChunkSize, ChunkFun, InitState) ->
- couch_httpd:recv_chunked(Req, MaxChunkSize,
- ChunkFun, InitState)
- end;
- 0 ->
- <<"">>;
- Length when is_integer(Length) ->
- Expect = case couch_httpd:header_value(Req, "expect") of
- undefined ->
- undefined;
- Value when is_list(Value) ->
- string:to_lower(Value)
- end,
- case Expect of
- "100-continue" ->
- MochiReq:start_raw_response({100, gb_trees:empty()});
- _Else ->
- ok
- end,
-
-
- fun() -> couch_httpd:recv(Req, 0) end;
- Length ->
- exit({length_not_integer, Length})
- end,
- att_len = case couch_httpd:header_value(Req,"Content-Length") of
- undefined ->
- undefined;
- Length ->
- list_to_integer(Length)
- end,
- md5 = get_md5_header(Req),
- encoding = case string:to_lower(string:strip(
- couch_httpd:header_value(Req,"Content-Encoding","identity")
- )) of
- "identity" ->
- identity;
- "gzip" ->
- gzip;
- _ ->
- throw({
- bad_ctype,
- "Only gzip and identity content-encodings are supported"
- })
- end
- }]
- end,
-
- Doc = case extract_header_rev(Req, couch_httpd:qs_value(Req, "rev")) of
- missing_rev -> % make the new doc
- couch_doc:validate_docid(DocId),
- #doc{id=DocId};
- Rev ->
- case couch_db:open_doc_revs(Db, DocId, [Rev], []) of
- {ok, [{ok, Doc0}]} -> Doc0;
- {ok, [Error]} -> throw(Error)
- end
- end,
-
- #doc{atts=Atts} = Doc,
- DocEdited = Doc#doc{
- atts = NewAtt ++ [A || A <- Atts, A#att.name /= FileName]
- },
- {ok, UpdatedRev} = couch_db:update_doc(Db, DocEdited, []),
- #db{name=DbName} = Db,
-
- {Status, Headers} = case Method of
- 'DELETE' ->
- {200, []};
- _ ->
- {201, [{"Etag", "\"" ++ ?b2l(couch_doc:rev_to_str(UpdatedRev)) ++ "\""},
- {"Location", absolute_uri(Req, "/" ++
- binary_to_list(DbName) ++ "/" ++
- binary_to_list(DocId) ++ "/" ++
- binary_to_list(FileName)
- )}]}
- end,
- send_json(Req,Status, Headers, {[
- {ok, true},
- {id, DocId},
- {rev, couch_doc:rev_to_str(UpdatedRev)}
- ]});
-
-db_attachment_req(Req, _Db, _DocId, _FileNameParts) ->
- send_method_not_allowed(Req, "DELETE,GET,HEAD,PUT").
-
-
-get_md5_header(Req) ->
- ContentMD5 = couch_httpd:header_value(Req, "Content-MD5"),
- Length = couch_httpd:body_length(Req),
- Trailer = couch_httpd:header_value(Req, "Trailer"),
- case {ContentMD5, Length, Trailer} of
- _ when is_list(ContentMD5) orelse is_binary(ContentMD5) ->
- base64:decode(ContentMD5);
- {_, chunked, undefined} ->
- <<>>;
- {_, chunked, _} ->
- case re:run(Trailer, "\\bContent-MD5\\b", [caseless]) of
- {match, _} ->
- md5_in_footer;
- _ ->
- <<>>
- end;
- _ ->
- <<>>
- end.
-
-parse_doc_query(Req) ->
- lists:foldl(fun({Key,Value}, Args) ->
- case {Key, Value} of
- {"attachments", "true"} ->
- Options = [attachments | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"meta", "true"} ->
- Options = [revs_info, conflicts, deleted_conflicts | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"revs", "true"} ->
- Options = [revs | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"local_seq", "true"} ->
- Options = [local_seq | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"revs_info", "true"} ->
- Options = [revs_info | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"conflicts", "true"} ->
- Options = [conflicts | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"deleted_conflicts", "true"} ->
- Options = [deleted_conflicts | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- {"rev", Rev} ->
- Args#doc_query_args{rev=couch_doc:parse_rev(Rev)};
- {"open_revs", "all"} ->
- Args#doc_query_args{open_revs=all};
- {"open_revs", RevsJsonStr} ->
- JsonArray = ?JSON_DECODE(RevsJsonStr),
- Args#doc_query_args{open_revs=couch_doc:parse_revs(JsonArray)};
- {"atts_since", RevsJsonStr} ->
- JsonArray = ?JSON_DECODE(RevsJsonStr),
- Args#doc_query_args{atts_since = couch_doc:parse_revs(JsonArray)};
- {"new_edits", "false"} ->
- Args#doc_query_args{update_type=replicated_changes};
- {"new_edits", "true"} ->
- Args#doc_query_args{update_type=interactive_edit};
- {"att_encoding_info", "true"} ->
- Options = [att_encoding_info | Args#doc_query_args.options],
- Args#doc_query_args{options=Options};
- _Else -> % unknown key value pair, ignore.
- Args
- end
- end, #doc_query_args{}, couch_httpd:qs(Req)).
-
-parse_changes_query(Req) ->
- lists:foldl(fun({Key, Value}, Args) ->
- case {Key, Value} of
- {"feed", _} ->
- Args#changes_args{feed=Value};
- {"descending", "true"} ->
- Args#changes_args{dir=rev};
- {"since", _} ->
- Args#changes_args{since=list_to_integer(Value)};
- {"limit", _} ->
- Args#changes_args{limit=list_to_integer(Value)};
- {"style", _} ->
- Args#changes_args{style=list_to_existing_atom(Value)};
- {"heartbeat", "true"} ->
- Args#changes_args{heartbeat=true};
- {"heartbeat", _} ->
- Args#changes_args{heartbeat=list_to_integer(Value)};
- {"timeout", _} ->
- Args#changes_args{timeout=list_to_integer(Value)};
- {"include_docs", "true"} ->
- Args#changes_args{include_docs=true};
- {"filter", _} ->
- Args#changes_args{filter=Value};
- _Else -> % unknown key value pair, ignore.
- Args
- end
- end, #changes_args{}, couch_httpd:qs(Req)).
-
-extract_header_rev(Req, ExplicitRev) when is_binary(ExplicitRev) or is_list(ExplicitRev)->
- extract_header_rev(Req, couch_doc:parse_rev(ExplicitRev));
-extract_header_rev(Req, ExplicitRev) ->
- Etag = case couch_httpd:header_value(Req, "If-Match") of
- undefined -> undefined;
- Value -> couch_doc:parse_rev(string:strip(Value, both, $"))
- end,
- case {ExplicitRev, Etag} of
- {undefined, undefined} -> missing_rev;
- {_, undefined} -> ExplicitRev;
- {undefined, _} -> Etag;
- _ when ExplicitRev == Etag -> Etag;
- _ ->
- throw({bad_request, "Document rev and etag have different values"})
- end.
-
-
-parse_copy_destination_header(Req) ->
- Destination = couch_httpd:header_value(Req, "Destination"),
- case re:run(Destination, "\\?", [{capture, none}]) of
- nomatch ->
- {list_to_binary(Destination), {0, []}};
- match ->
- [DocId, RevQs] = re:split(Destination, "\\?", [{return, list}]),
- [_RevQueryKey, Rev] = re:split(RevQs, "=", [{return, list}]),
- {Pos, RevId} = couch_doc:parse_rev(Rev),
- {list_to_binary(DocId), {Pos, [RevId]}}
- end.
-
-validate_attachment_names(Doc) ->
- lists:foreach(fun(#att{name=Name}) ->
- validate_attachment_name(Name)
- end, Doc#doc.atts).
-
-validate_attachment_name(Name) when is_list(Name) ->
- validate_attachment_name(list_to_binary(Name));
-validate_attachment_name(<<"_",_/binary>>) ->
- throw({bad_request, <<"Attachment name can't start with '_'">>});
-validate_attachment_name(Name) ->
- case is_valid_utf8(Name) of
- true -> Name;
- false -> throw({bad_request, <<"Attachment name is not UTF-8 encoded">>})
- end.
-
-%% borrowed from mochijson2:json_bin_is_safe()
-is_valid_utf8(<<>>) ->
- true;
-is_valid_utf8(<<C, Rest/binary>>) ->
- case C of
- $\" ->
- false;
- $\\ ->
- false;
- $\b ->
- false;
- $\f ->
- false;
- $\n ->
- false;
- $\r ->
- false;
- $\t ->
- false;
- C when C >= 0, C < $\s; C >= 16#7f, C =< 16#10FFFF ->
- false;
- C when C < 16#7f ->
- is_valid_utf8(Rest);
- _ ->
- false
- end.