// this method only exists for compatibility with PouchDB and should not be used elsewhere.
func BulkGet(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
var ireqs interface{}
/* options */
revs := flag(r, "revs")
var ok bool
if ireqs, ok = ctx.jsonBody["docs"]; !ok {
res := responses.BadRequest("You were supposed to request some docs specified by their ids, and you didn't.")
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
reqs := ireqs.([]interface{})
res := responses.BulkGet{
Results: make([]responses.BulkGetResult, len(reqs)),
}
for i, ireq := range reqs {
req := ireq.(map[string]interface{})
res.Results[i] = responses.BulkGetResult{
Docs: make([]responses.DocOrError, 1),
}
iid, ok := req["id"]
if !ok {
err := responses.BadRequest("missing id")
res.Results[i].Docs[0].Error = &err
continue
}
id := iid.(string)
res.Results[i].Id = id
path := db.CleanPath(ctx.path) + "/" + db.EscapeKey(id)
rev := string(db.GetRev(path))
doc, err := db.GetTreeAt(path)
if err != nil {
err := responses.NotFound()
res.Results[i].Docs[0].Error = &err
continue
}
doc["_id"] = id
doc["_rev"] = rev
delete(doc, "_val") // pouchdb doesn't like top-level keys starting with _
if revs {
// magic method to fetch _revisions
// docs["_revisions"] = ...
}
res.Results[i].Docs[0].Ok = &doc
}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
// HTTP handler for reading security metadata
func ReadSecurity(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
path := db.CleanPath(ctx.path)
res := responses.Security{
Read: db.GetReadRuleAt(path),
Write: db.GetWriteRuleAt(path),
Admin: db.GetAdminRuleAt(path),
}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
func Changes(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
/* options */
// always true temporarily: all_docs := flag(r, "style", "all_docs")
sincep := param(r, "since")
var since uint64
if sincep == "now" {
since = db.GlobalUpdateSeq()
} else {
var err error
since, err = strconv.ParseUint(sincep, 10, 64)
if err != nil {
since = 0
}
}
path := db.CleanPath(ctx.path)
changes, err := db.ListChangesAt(path, since)
if err != nil {
res := responses.UnknownError(err.Error())
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
var lastSeq uint64 = 0
nchanges := len(changes)
if nchanges > 0 {
lastSeq = changes[nchanges-1].Seq
}
res := responses.Changes{
LastSeq: lastSeq,
Results: changes,
}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
// this method only exists for compatibility with PouchDB and should not be used elsewhere.
func RevsDiff(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
path := db.CleanPath(ctx.path)
res := make(map[string]responses.RevsDiffResult)
for id, irevs := range ctx.jsonBody {
missing := make([]string, 0)
currentRevb, err := db.GetValueAt(path + "/" + id + "/_rev")
if err != nil {
/* no _rev for this id, means it has never been inserted in this database.
let's say we miss all the revs. */
for _, irev := range irevs.([]interface{}) {
rev := irev.(string)
missing = append(missing, rev)
}
} else {
/* otherwise we will say we have the current rev and none of the others,
because that's the truth. */
// TODO maybe here we should say that we have these old revs
// -- either we actually have them, but they are deleted, or
// we don't, but they are unnecessary anyway.
currentRev := string(currentRevb)
for _, irev := range irevs.([]interface{}) {
rev := irev.(string)
if rev != currentRev {
missing = append(missing, rev)
}
}
}
res[id] = responses.RevsDiffResult{Missing: missing}
}
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
// HTTP handler for writing security metadata
func WriteSecurity(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
path := db.CleanPath(ctx.path)
if !db.AdminAllowedAt(path, ctx.user) {
res := responses.Unauthorized()
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
err := db.SetRulesAt(path, ctx.jsonBody)
if err != nil {
res := responses.UnknownError()
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
res := responses.Success{Ok: true}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
/*
Currently _all_docs does not guarantee key order and should not be used for
querying or anything. It is here just to provide PouchDB replication support.
*/
func AllDocs(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
/* options */
include_docs := flag(r, "include_docs")
jsonKeys := param(r, "keys")
// startkey := param(r, "startkey")
// endkey := param(r, "endkey")
// descending := flag(r, "descending")
// skip := param(r, "skip")
// limit := param(r, "limit")
path := db.CleanPath(ctx.path)
tree, err := db.GetTreeAt(path)
if err != nil {
res := responses.UnknownError(err.Error())
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
res := responses.AllDocs{
TotalRows: 0,
Offset: 0, // temporary
Rows: make([]responses.Row, 0),
}
if jsonKeys != "" {
// in case "keys" was provided we can just pick the requested keys from our tree
var keys []string
err = json.Unmarshal([]byte(jsonKeys), &keys)
if err != nil {
res := responses.BadRequest()
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
for _, id := range keys {
var doc interface{}
var ok bool
if doc, ok = tree[id]; !ok || strings.HasPrefix(id, "_") {
res.Rows = append(res.Rows, responses.Row{
Key: id,
Error: (responses.NotFound()).Reason,
})
}
rev := string(db.GetRev(path + "/" + db.EscapeKey(id)))
row := responses.Row{
Id: id,
Key: id,
Value: map[string]interface{}{"rev": rev},
}
if include_docs {
row.Doc = doc.(map[string]interface{})
row.Doc["_id"] = id
row.Doc["_rev"] = rev
delete(row.Doc, "_val") // pouchdb doesn't like top-level keys starting with _
}
res.Rows = append(res.Rows, row)
res.TotalRows += 1
}
} else {
// otherwise iterate through the entire tree
for id, doc := range tree {
if strings.HasPrefix(id, "_") {
continue
}
rev := string(db.GetRev(path + "/" + db.EscapeKey(id)))
row := responses.Row{
Id: id,
Key: id,
Value: map[string]interface{}{"rev": rev},
}
if include_docs {
row.Doc = doc.(map[string]interface{})
row.Doc["_id"] = id
row.Doc["_rev"] = rev
delete(row.Doc, "_val") // pouchdb doesn't like top-level keys starting with _
}
res.Rows = append(res.Rows, row)
res.TotalRows += 1
}
}
w.Header().Add("Content-Type", "application/json")
w.WriteHeader(200)
json.NewEncoder(w).Encode(res)
}
// this method only exists for compatibility with PouchDB and should not be used elsewhere.
func BulkDocs(w http.ResponseWriter, r *http.Request) {
ctx := getContext(r)
var idocs interface{}
var iid interface{}
var irev interface{}
var id string
var rev string
var ok bool
if idocs, ok = ctx.jsonBody["docs"]; !ok {
res := responses.BadRequest("You're supposed to send an array of docs to input on the database, and you didn't.")
w.WriteHeader(res.Code)
json.NewEncoder(w).Encode(res)
return
}
/* options */
new_edits := true
if inew_edits, ok := ctx.jsonBody["new_edits"]; ok {
new_edits = inew_edits.(bool)
}
path := db.CleanPath(ctx.path)
docs := idocs.([]interface{})
res := make([]responses.BulkDocsResult, len(docs))
var err error
if new_edits { /* procedure for normal document saving */
for i, idoc := range docs {
var newrev string
localDoc := false
doc := idoc.(map[string]interface{})
if iid, ok = doc["_id"]; ok {
id = iid.(string)
if strings.HasPrefix(id, "_local/") {
localDoc = true
}
if irev, ok = doc["_rev"]; ok {
rev = irev.(string)
} else {
rev = ""
}
} else {
id = db.Random(5)
}
if !localDoc {
// procedure for normal documents
// check rev matching:
if iid != nil /* when iid is nil that means the doc had no _id, so we don't have to check. */ {
currentRev := db.GetRev(path + "/" + db.EscapeKey(id))
if string(currentRev) != rev && !bytes.HasPrefix(currentRev, []byte{'0', '-'}) {
// rev is not matching, don't input this document
e := responses.ConflictError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
}
// proceed to write the document.
newrev, err = db.ReplaceTreeAt(path+"/"+db.EscapeKey(id), doc, false)
if err != nil {
e := responses.UnknownError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
} else {
// procedure for local documents
// check rev matching:
currentRev := db.GetLocalDocRev(path + "/" + id)
if currentRev != "0-0" && currentRev != rev {
// rev is not matching, don't input this document
e := responses.ConflictError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
// proceed to write the document.
newrev, err = db.SaveLocalDocAt(path+"/"+id, doc)
if err != nil {
e := responses.UnknownError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
}
res[i] = responses.BulkDocsResult{
Id: id,
Ok: true,
Rev: newrev,
}
}
} else { /* procedure for replication-type _bulk_docs (new_edits=false)*/
for i, idoc := range docs {
id = ""
rev = ""
doc := idoc.(map[string]interface{})
if iid, ok = doc["_id"]; ok {
id = iid.(string)
if irev, ok = doc["_rev"]; ok {
rev = irev.(string)
}
}
if id == "" || rev == "" {
e := responses.UnknownError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
// proceed to write
currentRev := db.GetRev(path + "/" + db.EscapeKey(id))
if rev < string(currentRev) {
// will write only the rev if it is not the winning rev
db.AcknowledgeRevFor(path+"/"+db.EscapeKey(id), rev)
} else {
// otherwise will write the whole doc normally (replacing the current)
rev, err = db.ReplaceTreeAt(path+"/"+db.EscapeKey(id), doc, true)
}
// handle write error
if err != nil {
e := responses.UnknownError()
res[i] = responses.BulkDocsResult{
Id: id,
Error: e.Error,
Reason: e.Reason,
}
continue
}
res[i] = responses.BulkDocsResult{
Id: id,
Ok: true,
Rev: rev,
}
}
}
w.WriteHeader(201)
json.NewEncoder(w).Encode(res)
}