// POST: /user
// To create a new user make a empty POST to /user with user:password
// Basic Auth encoded in the header. Return new user object.
func (cr *UserController) Create(cx *goweb.Context) {
// Log Request
LogRequest(cx.Request)
if _, ok := cx.Request.Header["Authorization"]; !ok {
cx.RespondWithError(http.StatusUnauthorized)
return
}
header := cx.Request.Header.Get("Authorization")
tmpAuthArray := strings.Split(header, " ")
authValues, err := base64.URLEncoding.DecodeString(tmpAuthArray[1])
if err != nil {
err = errors.New("Failed to decode encoded auth settings in http request.")
cx.RespondWithError(http.StatusBadRequest)
return
}
authValuesArray := strings.Split(string(authValues), ":")
name := authValuesArray[0]
passwd := authValuesArray[1]
admin := false
if len(authValuesArray) > 2 && authValuesArray[2] == fmt.Sprint(*conf.SECRETKEY) {
admin = true
}
u, err := user.New(name, passwd, admin)
if err != nil {
// Duplicate key check
if e.MongoDupKeyRegex.MatchString(err.Error()) {
fmt.Println("Err@user_Create: duplicate key error")
cx.RespondWithErrorMessage("Username not available", http.StatusBadRequest)
return
} else {
fmt.Println("Err@user_Create:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
cx.RespondWithData(u.RemovePasswd())
return
}
// GET: /node/{id}
func (cr *NodeController) Read(id string, cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Fake public user
if u == nil {
u = &user.User{Uuid: ""}
}
// Gather query params and setup flags
query := cx.Request.URL.Query()
_, download := query["download"]
_, pipe := query["pipe"]
_, list := query["list"]
// Load node and handle user unauthorized
node, err := ds.LoadNode(id, u.Uuid)
if err != nil {
if err.Error() == e.UnAuth {
fmt.Println("Unauthorized")
cx.RespondWithError(http.StatusUnauthorized)
return
} else if err.Error() == e.MongoDocNotFound {
cx.RespondWithNotFound()
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
fmt.Println("Err@node_Read:LoadNode:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
// Switch though param flags
if download {
if node.File.Empty() {
cx.RespondWithErrorMessage("node file not found", http.StatusBadRequest)
return
}
_, index := query["index"]
_, part := query["part"]
_, chunksize := query["chunksize"]
if index {
if query["index"][0] == "size" {
if part {
var csize int64 = 1048576
if chunksize {
csize, err = strconv.ParseInt(query["chunksize"][0], 10, 64)
if err != nil {
cx.RespondWithErrorMessage("Invalid chunksize", http.StatusBadRequest)
return
}
}
var size int64 = 0
s := &partStreamer{rs: []*io.SectionReader{}, ws: cx.ResponseWriter, contentType: "application/octet-stream", filename: node.Id}
r, err := os.Open(node.DataPath())
if err != nil {
fmt.Println("Err@node_Read:Open:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
defer r.Close()
for _, p := range query["part"] {
pInt, err := strconv.ParseInt(p, 10, 64)
if err != nil {
cx.RespondWithErrorMessage("Invalid index part", http.StatusBadRequest)
return
}
pos, length, err := node.File.SizeOffset(pInt, csize)
if err != nil {
cx.RespondWithErrorMessage("Invalid index part", http.StatusBadRequest)
return
}
size += length
s.rs = append(s.rs, io.NewSectionReader(r, pos, length))
}
s.size = size
err = s.stream()
if err != nil {
fmt.Println("err", err.Error())
}
} else {
cx.RespondWithErrorMessage("Index parameter requires part parameter", http.StatusBadRequest)
return
}
} else {
if node.HasIndex(query["index"][0]) {
idx := ds.NewIndex()
err = idx.Load(fmt.Sprintf("%s/%s", node.IndexPath(), query["index"][0]))
if err != nil {
fmt.Println(err.Error())
cx.RespondWithErrorMessage("Error loading index", http.StatusBadRequest)
return
}
var size int64 = 0
s := &partStreamer{rs: []*io.SectionReader{}, ws: cx.ResponseWriter, contentType: "application/octet-stream", filename: node.Id}
r, err := os.Open(node.DataPath())
if err != nil {
fmt.Println("Err@node_Read:Open:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
defer r.Close()
for _, p := range query["part"] {
pInt, err := strconv.ParseInt(p, 10, 64)
if err != nil {
cx.RespondWithErrorMessage("Invalid index part", http.StatusBadRequest)
return
}
p, ok1 := idx.Idx[(pInt - 1)][0].(float64)
l, ok2 := idx.Idx[(pInt - 1)][1].(float64)
if !ok1 || !ok2 {
cx.RespondWithErrorMessage("Malformed index", http.StatusBadRequest)
return
}
pos := int64(p)
length := int64(l)
size += length
s.rs = append(s.rs, io.NewSectionReader(r, pos, length))
}
s.size = size
err = s.stream()
if err != nil {
fmt.Println("err", err.Error())
}
} else {
cx.RespondWithErrorMessage("Index not found", http.StatusBadRequest)
return
}
}
} else {
nf, err := os.Open(node.DataPath())
if err != nil {
// File not found or some sort of file read error.
// Probably deserves more checking
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
s := &streamer{rs: nf, ws: cx.ResponseWriter, contentType: "application/octet-stream", filename: node.Id, size: node.File.Size}
err = s.stream()
if err != nil {
fmt.Println("err", err.Error())
}
}
return
} else if pipe {
cx.RespondWithError(http.StatusNotImplemented)
} else if list {
cx.RespondWithError(http.StatusNotImplemented)
} else {
// Base case respond with node in json
cx.RespondWithData(node)
}
}
// PUT: /node/{id} -> multipart-form
func (cr *NodeController) Update(id string, cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Fake public user
if u == nil {
u = &user.User{Uuid: ""}
}
node, err := ds.LoadNode(id, u.Uuid)
if err != nil {
if err.Error() == e.UnAuth {
fmt.Println("Unauthorized")
cx.RespondWithError(http.StatusUnauthorized)
return
} else if err.Error() == e.MongoDocNotFound {
cx.RespondWithNotFound()
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
fmt.Println("Err@node_Update:LoadNode:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
params, files, err := ParseMultipartForm(cx.Request)
if err != nil {
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
err = node.Update(params, files)
if err != nil {
errors := []string{"node file already set and is immutable", "node file immutable", "node attributes immutable", "node part already exists and is immutable"}
for e := range errors {
if err.Error() == errors[e] {
cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
return
}
}
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
cx.RespondWithData(node)
return
}
// GET: /node
// To do:
// - Iterate node queries
func (cr *NodeController) ReadMany(cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Gather query params and setup flags
query := cx.Request.URL.Query()
l, hasLimit := query["limit"]
o, hasOffset := query["skip"]
_, hasQuery := query["query"]
// Setup query and nodes objects
q := bson.M{}
nodes := new(ds.Nodes)
if u != nil {
// Admin sees all
if !u.Admin {
q["$or"] = []bson.M{bson.M{"acl.read": []string{}}, bson.M{"acl.read": u.Uuid}}
}
} else {
// select on only nodes with no read rights set
q["acl.read"] = []string{}
}
// Gather params to make db query. Do not include the
// following list.
skip := map[string]int{"limit": 1, "skip": 1, "query": 1}
if hasQuery {
for key, val := range query {
_, s := skip[key]
if !s {
q[fmt.Sprintf("attributes.%s", key)] = val[0]
}
}
}
// Limit and skip. Set default if both are not specified
if hasLimit || hasOffset {
var lim, off int
if !hasLimit {
lim = 100
} else {
lim, _ = strconv.Atoi(l[0])
}
if !hasOffset {
off = 0
} else {
off, _ = strconv.Atoi(o[0])
}
// Get nodes from db
err := nodes.GetAllLimitOffset(q, lim, off)
if err != nil {
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
} else {
// Get nodes from db
err := nodes.GetAll(q)
if err != nil {
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
}
cx.RespondWithData(nodes)
return
}
// POST: /node
func (cr *NodeController) Create(cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Fake public user
if u == nil {
u = &user.User{Uuid: ""}
}
// Parse uploaded form
params, files, err := ParseMultipartForm(cx.Request)
if err != nil {
// If not multipart/form-data it will create an empty node.
// TODO: create another request parser for non-multipart request
// to handle this cleaner.
if err.Error() == "request Content-Type isn't multipart/form-data" {
node, err := ds.CreateNodeUpload(u, params, files)
if err != nil {
fmt.Println("Error at create empty:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
if node == nil {
// Not sure how you could get an empty node with no error
// Assume it's the user's fault
cx.RespondWithError(http.StatusBadRequest)
return
} else {
cx.RespondWithData(node)
return
}
} else {
// Some error other than request encoding. Theoretically
// could be a lost db connection between user lookup and parsing.
// Blame the user, Its probaby their fault anyway.
fmt.Println("Error at empty create:", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
}
// Create node
node, err := ds.CreateNodeUpload(u, params, files)
if err != nil {
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
cx.RespondWithData(node)
return
}
// GET: /node/{id}
// ToDo: clean up this function. About to get unmanageable
func (cr *NodeController) Read(id string, cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Fake public user
if u == nil {
u = &user.User{Uuid: ""}
}
// Gather query params
query := &Query{list: cx.Request.URL.Query()}
var fFunc filter.FilterFunc = nil
if query.Has("filter") {
if filter.Has(query.Value("filter")) {
fFunc = filter.Filter(query.Value("filter"))
}
}
// Load node and handle user unauthorized
node, err := store.LoadNode(id, u.Uuid)
if err != nil {
if err.Error() == e.UnAuth {
fmt.Println("Unauthorized")
cx.RespondWithError(http.StatusUnauthorized)
return
} else if err.Error() == e.MongoDocNotFound {
cx.RespondWithNotFound()
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
fmt.Println("Err@node_Read:LoadNode:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
// Switch though param flags
// ?download=1
if query.Has("download") {
if !node.HasFile() {
cx.RespondWithErrorMessage("node file not found", http.StatusBadRequest)
return
}
//_, chunksize :=
// ?index=foo
if query.Has("index") {
// if forgot ?part=N
if !query.Has("part") {
cx.RespondWithErrorMessage("Index parameter requires part parameter", http.StatusBadRequest)
return
}
// open file
r, err := os.Open(node.DataPath())
defer r.Close()
if err != nil {
fmt.Println("Err@node_Read:Open:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
// load index
idx, err := node.Index(query.Value("index"))
if err != nil {
cx.RespondWithErrorMessage("Invalid index", http.StatusBadRequest)
return
}
if idx.Type() == "virtual" {
csize := int64(1048576)
if query.Has("chunksize") {
csize, err = strconv.ParseInt(query.Value("chunksize"), 10, 64)
if err != nil {
cx.RespondWithErrorMessage("Invalid chunksize", http.StatusBadRequest)
return
}
}
idx.Set(map[string]interface{}{"ChunkSize": csize})
}
var size int64 = 0
s := &streamer{rs: []io.ReadCloser{}, ws: cx.ResponseWriter, contentType: "application/octet-stream", filename: node.Id, filter: fFunc}
for _, p := range query.List("part") {
pos, length, err := idx.Part(p)
if err != nil {
cx.RespondWithErrorMessage("Invalid index part", http.StatusBadRequest)
return
}
size += length
s.rs = append(s.rs, NewSectionReaderCloser(r, pos, length))
}
s.size = size
err = s.stream()
if err != nil {
// fix
fmt.Println("err", err.Error())
}
} else {
nf, err := os.Open(node.DataPath())
if err != nil {
// File not found or some sort of file read error.
// Probably deserves more checking
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
s := &streamer{rs: []io.ReadCloser{nf}, ws: cx.ResponseWriter, contentType: "application/octet-stream", filename: node.Id, size: node.File.Size, filter: fFunc}
err = s.stream()
if err != nil {
// fix
fmt.Println("err", err.Error())
}
}
return
} else if query.Has("pipe") {
cx.RespondWithError(http.StatusNotImplemented)
} else if query.Has("list") {
cx.RespondWithError(http.StatusNotImplemented)
} else {
// Base case respond with node in json
cx.RespondWithData(node)
}
}
// PUT: /node/{id} -> multipart-form
func (cr *NodeController) Update(id string, cx *goweb.Context) {
// Log Request and check for Auth
LogRequest(cx.Request)
u, err := AuthenticateRequest(cx.Request)
if err != nil {
// No Auth is not damning. Other errors are probably a dead db connection
if err.Error() != e.NoAuth {
if err.Error() == e.MongoDocNotFound {
cx.RespondWithErrorMessage("Invalid username or password", http.StatusBadRequest)
return
} else {
fmt.Println("Error at Auth:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
}
// Gather query params
query := &Query{list: cx.Request.URL.Query()}
// Fake public user
if u == nil {
u = &user.User{Uuid: ""}
}
node, err := store.LoadNode(id, u.Uuid)
if err != nil {
if err.Error() == e.UnAuth {
fmt.Println("Unauthorized")
cx.RespondWithError(http.StatusUnauthorized)
return
} else if err.Error() == e.MongoDocNotFound {
cx.RespondWithNotFound()
return
} else {
// In theory the db connection could be lost between
// checking user and load but seems unlikely.
fmt.Println("Err@node_Update:LoadNode:", err.Error())
cx.RespondWithError(http.StatusInternalServerError)
return
}
}
if query.Has("index") {
if !node.HasFile() {
cx.RespondWithErrorMessage("node file empty", http.StatusBadRequest)
return
}
newIndexer := indexer.Indexer(query.Value("index"))
f, _ := os.Open(node.DataPath())
defer f.Close()
idxer := newIndexer(f)
err := idxer.Create()
if err != nil {
fmt.Println(err.Error())
}
err = idxer.Dump(node.IndexPath() + "/record")
if err != nil {
cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
return
} else {
cx.RespondWithOK()
return
}
} else {
params, files, err := ParseMultipartForm(cx.Request)
if err != nil {
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
err = node.Update(params, files)
if err != nil {
errors := []string{"node file already set and is immutable", "node file immutable", "node attributes immutable", "node part already exists and is immutable"}
for e := range errors {
if err.Error() == errors[e] {
cx.RespondWithErrorMessage(err.Error(), http.StatusBadRequest)
return
}
}
fmt.Println("err", err.Error())
cx.RespondWithError(http.StatusBadRequest)
return
}
cx.RespondWithData(node)
}
return
}