// SINGLE SOURCE - Type B: copy(f, d) -> copy(f, d/f) -> A
// prepareCopyURLsTypeB - prepares target and source URLs for copying.
func prepareCopyURLsTypeB(sourceURL string, targetURL string) copyURLs {
_, sourceContent, err := url2Stat(sourceURL)
if err != nil {
// Source does not exist or insufficient privileges.
return copyURLs{Error: NewIodine(iodine.New(err, nil))}
}
if !sourceContent.Type.IsRegular() {
// Source is not a regular file.
return copyURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
}
// All OK.. We can proceed. Type B: source is a file, target is a folder and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
return copyURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
}
targetURLParse, err := client.Parse(targetURL)
if err != nil {
return copyURLs{Error: NewIodine(iodine.New(errInvalidTarget{URL: targetURL}, nil))}
}
targetURLParse.Path = filepath.Join(targetURLParse.Path, filepath.Base(sourceURLParse.Path))
return prepareCopyURLsTypeA(sourceURL, targetURLParse.String())
}
// aliasExpand expands aliased (name:/path) to full URL, used by url-parser
func aliasExpand(aliasedURL string, aliases map[string]string) (newURL string, err error) {
u, err := client.Parse(aliasedURL)
if err != nil {
return aliasedURL, iodine.New(errInvalidURL{URL: aliasedURL}, nil)
}
// proper URL
if u.Host != "" {
return aliasedURL, nil
}
for aliasName, expandedURL := range aliases {
if strings.HasPrefix(aliasedURL, aliasName+":") {
// Match found. Expand it.
splits := strings.Split(aliasedURL, ":")
// if expandedURL is missing, return aliasedURL treat it like fs
if expandedURL == "" {
return aliasedURL, nil
}
// if more splits found return
if len(splits) == 2 {
// remove any prefixed slashes
trimmedURL := expandedURL + "/" + strings.TrimPrefix(strings.TrimPrefix(splits[1], "/"), "\\")
u, err := client.Parse(trimmedURL)
if err != nil {
return aliasedURL, iodine.New(errInvalidURL{URL: aliasedURL}, nil)
}
return u.String(), nil
}
return aliasedURL, nil
}
}
return aliasedURL, nil
}
// urlJoinPath Join a path to existing URL
func urlJoinPath(url1, url2 string) (string, *probe.Error) {
u1, e := client.Parse(url1)
if e != nil {
return "", probe.NewError(e)
}
u2, e := client.Parse(url2)
if e != nil {
return "", probe.NewError(e)
}
u1.Path = filepath.Join(u1.Path, u2.Path)
return u1.String(), nil
}
// urlJoinPath Join a path to existing URL
func urlJoinPath(url1, url2 string) (newURLStr string, err error) {
u1, err := client.Parse(url1)
if err != nil {
return "", iodine.New(err, nil)
}
u2, err := client.Parse(url2)
if err != nil {
return "", iodine.New(err, nil)
}
u1.Path = filepath.Join(u1.Path, u2.Path)
newURLStr = u1.String()
return newURLStr, nil
}
// SINGLE SOURCE - Type B: copy(f, d) -> copy(f, d/f) -> A
// prepareCopyURLsTypeB - prepares target and source URLs for copying.
func prepareCopyURLsTypeB(sourceURL string, targetURL string) <-chan cpURLs {
cpURLsCh := make(chan cpURLs, 10000)
go func(sourceURL, targetURL string, cpURLsCh chan cpURLs) {
defer close(cpURLsCh)
_, sourceContent, err := url2Stat(sourceURL)
if err != nil {
// Source does not exist or insufficient privileges.
cpURLsCh <- cpURLs{Error: iodine.New(err, nil)}
return
}
if !sourceContent.Type.IsRegular() {
// Source is not a regular file.
cpURLsCh <- cpURLs{Error: iodine.New(errInvalidSource{URL: sourceURL}, nil)}
return
}
_, targetContent, err := url2Stat(targetURL)
if err != nil {
cpURLsCh <- cpURLs{Error: iodine.New(err, nil)}
return
}
if err == nil {
if !targetContent.Type.IsDir() {
// Target exists, but is not a directory.
cpURLsCh <- cpURLs{Error: iodine.New(errTargetIsNotDir{URL: targetURL}, nil)}
return
}
} // Else name is available to create.
// All OK.. We can proceed. Type B: source is a file, target is a directory and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
cpURLsCh <- cpURLs{Error: iodine.New(errInvalidSource{URL: sourceURL}, nil)}
return
}
targetURLParse, err := client.Parse(targetURL)
if err != nil {
cpURLsCh <- cpURLs{Error: iodine.New(errInvalidTarget{URL: targetURL}, nil)}
return
}
targetURLParse.Path = filepath.Join(targetURLParse.Path, filepath.Base(sourceURLParse.Path))
for cURLs := range prepareCopyURLsTypeA(sourceURL, targetURLParse.String()) {
cpURLsCh <- cURLs
}
}(sourceURL, targetURL, cpURLsCh)
return cpURLsCh
}
// getExpandedURL - extracts URL string from a single cmd-line argument
func getExpandedURL(arg string, aliases map[string]string) (urlStr string, err error) {
if _, err := client.Parse(urlStr); err != nil {
// Not a valid URL. Return error
return "", NewIodine(iodine.New(errInvalidURL{arg}, nil))
}
// Check and expand Alias
urlStr, err = aliasExpand(arg, aliases)
if err != nil {
return "", NewIodine(iodine.New(err, nil))
}
if _, err := client.Parse(urlStr); err != nil {
// Not a valid URL. Return error
return "", NewIodine(iodine.New(errInvalidURL{urlStr}, nil))
}
return urlStr, nil
}
// getHostConfig retrieves host specific configuration such as access keys, certs.
func getHostConfig(URL string) (hostConfig, *probe.Error) {
config, err := getMcConfig()
if err != nil {
return hostConfig{}, err.Trace()
}
{
url, err := client.Parse(URL)
if err != nil {
return hostConfig{}, probe.NewError(err)
}
// No host matching or keys needed for filesystem requests
if url.Type == client.Filesystem {
hostCfg := hostConfig{
AccessKeyID: "",
SecretAccessKey: "",
}
return hostCfg, nil
}
for globURL, hostCfg := range config.Hosts {
match, err := filepath.Match(globURL, url.Host)
if err != nil {
return hostConfig{}, errInvalidGlobURL(globURL, URL).Trace()
}
if match {
return hostCfg, nil
}
}
}
return hostConfig{}, errNoMatchingHost(URL).Trace()
}
// getNewClient gives a new client interface
func getNewClient(urlStr string, auth *hostConfig) (clnt client.Client, err error) {
url, err := client.Parse(urlStr)
if err != nil {
return nil, iodine.New(errInvalidURL{URL: urlStr}, map[string]string{"URL": urlStr})
}
switch url.Type {
case client.Object: // Minio and S3 compatible object storage
if auth == nil {
return nil, iodine.New(errInvalidArgument{}, nil)
}
s3Config := new(s3.Config)
s3Config.AccessKeyID = func() string {
if auth.AccessKeyID == globalAccessKeyID {
return ""
}
return auth.AccessKeyID
}()
s3Config.SecretAccessKey = func() string {
if auth.SecretAccessKey == globalSecretAccessKey {
return ""
}
return auth.SecretAccessKey
}()
s3Config.AppName = "Minio"
s3Config.AppVersion = getVersion()
s3Config.AppComments = []string{os.Args[0], runtime.GOOS, runtime.GOARCH}
s3Config.HostURL = urlStr
s3Config.Debug = globalDebugFlag
return s3.New(s3Config)
case client.Filesystem:
return fs.New(urlStr)
}
return nil, iodine.New(errInvalidURL{URL: urlStr}, nil)
}
// getHostConfig retrieves host specific configuration such as access keys, certs.
func getHostConfig(URL string) (*hostConfig, error) {
config, err := getMcConfig()
if err != nil {
return nil, NewIodine(iodine.New(err, nil))
}
url, err := client.Parse(URL)
if err != nil {
return nil, NewIodine(iodine.New(errInvalidURL{URL: URL}, nil))
}
// No host matching or keys needed for filesystem requests
if url.Type == client.Filesystem {
hostCfg := &hostConfig{
AccessKeyID: "",
SecretAccessKey: "",
}
return hostCfg, nil
}
for globURL, hostCfg := range config.Hosts {
match, err := filepath.Match(globURL, url.Host)
if err != nil {
return nil, NewIodine(iodine.New(errInvalidGlobURL{glob: globURL, request: URL}, nil))
}
if match {
if hostCfg == nil {
return nil, NewIodine(iodine.New(errInvalidAuth{}, nil))
}
return hostCfg, nil
}
}
return nil, NewIodine(iodine.New(errNoMatchingHost{}, nil))
}
// New returns an initialized s3Client structure. if debug use a internal trace transport
func New(config *Config) (client.Client, error) {
u, err := client.Parse(config.HostURL)
if err != nil {
return nil, iodine.New(err, nil)
}
var transport http.RoundTripper
switch {
case config.Debug == true:
transport = GetNewTraceTransport(NewTrace(), http.DefaultTransport)
default:
transport = http.DefaultTransport
}
s3Conf := minio.Config{
AccessKeyID: config.AccessKeyID,
SecretAccessKey: config.SecretAccessKey,
Transport: transport,
Endpoint: u.Scheme + "://" + u.Host,
}
s3Conf.AccessKeyID = config.AccessKeyID
s3Conf.SecretAccessKey = config.SecretAccessKey
s3Conf.Transport = transport
s3Conf.SetUserAgent(config.AppName, config.AppVersion, config.AppComments...)
s3Conf.Endpoint = u.Scheme + "://" + u.Host
api, err := minio.New(s3Conf)
if err != nil {
return nil, err
}
return &s3Client{api: api, hostURL: u}, nil
}
// checkCastSyntax(URLs []string)
func checkCastSyntax(ctx *cli.Context) {
if len(ctx.Args()) < 2 || ctx.Args().First() == "help" {
cli.ShowCommandHelpAndExit(ctx, "cast", 1) // last argument is exit code.
}
// extract URLs.
URLs, err := args2URLs(ctx.Args())
if err != nil {
console.Fatalf("One or more unknown URL types found %s. %s\n", ctx.Args(), NewIodine(iodine.New(err, nil)))
}
srcURL := URLs[0]
tgtURLs := URLs[1:]
/****** Generic rules *******/
// Source cannot be a folder (except when recursive)
if !isURLRecursive(srcURL) {
_, srcContent, err := url2Stat(srcURL)
// Source exist?.
if err != nil {
console.Fatalf("Unable to stat source ‘%s’. %s\n", srcURL, NewIodine(iodine.New(err, nil)))
}
if !srcContent.Type.IsRegular() {
if srcContent.Type.IsDir() {
console.Fatalf("Source ‘%s’ is a folder. Please use ‘%s...’ to recursively copy this folder and its contents.\n", srcURL, srcURL)
}
console.Fatalf("Source ‘%s’ is not a regular file.\n", srcURL)
}
}
// Recursive URLs are not allowed in target.
for _, tgtURL := range tgtURLs {
if isURLRecursive(tgtURL) {
console.Fatalf("Target ‘%s’ cannot be recursive. %s\n", tgtURL, NewIodine(iodine.New(errInvalidArgument{}, nil)))
}
}
for _, tgtURL := range tgtURLs {
url, err := client.Parse(tgtURL)
if err != nil {
console.Fatalf("Unable to parse target ‘%s’ argument. %s\n", tgtURL, NewIodine(iodine.New(err, nil)))
}
if url.Host != "" {
if url.Path == string(url.Separator) {
console.Fatalf("Bucket creation detected for %s, cloud storage URL's should use ‘mc mb’ to create buckets\n", tgtURL)
}
}
}
switch guessCastURLType(srcURL, tgtURLs) {
case castURLsTypeA: // File -> File.
checkCastSyntaxTypeA(srcURL, tgtURLs)
case castURLsTypeB: // File -> Folder.
checkCastSyntaxTypeB(srcURL, tgtURLs)
case castURLsTypeC: // Folder -> Folder.
checkCastSyntaxTypeC(srcURL, tgtURLs)
default:
console.Fatalln("Invalid arguments. Unable to determine how to cast. Please report this issue at https://github.com/minio/mc/issues")
}
}
func isValidURL(url string) bool {
// Empty source arg?
urlParse, err := client.Parse(url)
if err != nil {
return false
}
if urlParse.Path == "" {
return false
}
return true
}
// checkMirrorSyntax(URLs []string)
func checkMirrorSyntax(ctx *cli.Context) {
if len(ctx.Args()) < 2 || ctx.Args().First() == "help" {
cli.ShowCommandHelpAndExit(ctx, "mirror", 1) // last argument is exit code.
}
// extract URLs.
URLs, err := args2URLs(ctx.Args())
fatalIf(err.Trace(ctx.Args()...), "Unable to parse arguments.")
srcURL := URLs[0]
tgtURLs := URLs[1:]
/****** Generic rules *******/
// Source cannot be a folder (except when recursive)
if !isURLRecursive(srcURL) {
fatalIf(errInvalidArgument().Trace(), fmt.Sprintf("Source ‘%s’ is not recursive. Use ‘%s...’ as argument to mirror recursively.", srcURL, srcURL))
}
// Recursive source URL.
newSrcURL := stripRecursiveURL(srcURL)
_, srcContent, err := url2Stat(newSrcURL)
fatalIf(err.Trace(srcURL), "Unable to stat source ‘"+newSrcURL+"’.")
if srcContent.Type.IsRegular() { // Ellipses is supported only for folders.
fatalIf(errInvalidArgument().Trace(), "Source ‘"+srcURL+"’ is not a folder.")
}
if len(tgtURLs) == 0 && tgtURLs == nil {
fatalIf(errInvalidArgument().Trace(), "Invalid number of target arguments to mirror command.")
}
for _, tgtURL := range tgtURLs {
// Recursive URLs are not allowed in target.
if isURLRecursive(tgtURL) {
fatalIf(errDummy().Trace(), fmt.Sprintf("Recursive option is not supported for target ‘%s’ argument.", tgtURL))
}
url, e := client.Parse(tgtURL)
fatalIf(probe.NewError(e), "Unable to parse target ‘"+tgtURL+"’ argument.")
if url.Host != "" {
if url.Path == string(url.Separator) {
fatalIf(errInvalidArgument().Trace(), fmt.Sprintf("Target ‘%s’ does not contain bucket name.", tgtURL))
}
}
_, content, err := url2Stat(tgtURL)
fatalIf(err.Trace(tgtURL), "Unable to stat target ‘"+tgtURL+"’.")
if !content.Type.IsDir() {
fatalIf(errInvalidArgument().Trace(), "Target ‘"+tgtURL+"’ is not a folder.")
}
}
}
// SINGLE SOURCE - Type B: copy(f, d) -> copy(f, d/f) -> A
// prepareCopyURLsTypeB - prepares target and source URLs for copying.
func prepareCopyURLsTypeB(sourceURL string, targetURL string) <-chan copyURLs {
copyURLsCh := make(chan copyURLs)
go func(sourceURL, targetURL string, copyURLsCh chan copyURLs) {
defer close(copyURLsCh)
_, sourceContent, err := url2Stat(sourceURL)
if err != nil {
// Source does not exist or insufficient privileges.
copyURLsCh <- copyURLs{Error: NewIodine(iodine.New(err, nil))}
return
}
if !sourceContent.Type.IsRegular() {
// Source is not a regular file.
copyURLsCh <- copyURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
return
}
// All OK.. We can proceed. Type B: source is a file, target is a directory and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
copyURLsCh <- copyURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
return
}
targetURLParse, err := client.Parse(targetURL)
if err != nil {
copyURLsCh <- copyURLs{Error: NewIodine(iodine.New(errInvalidTarget{URL: targetURL}, nil))}
return
}
targetURLParse.Path = filepath.Join(targetURLParse.Path, filepath.Base(sourceURLParse.Path))
for cURLs := range prepareCopyURLsTypeA(sourceURL, targetURLParse.String()) {
copyURLsCh <- cURLs
}
}(sourceURL, targetURL, copyURLsCh)
return copyURLsCh
}
// prepareSingleCastURLsTypeB - prepares a single target and single source URLs for casting.
func prepareSingleCastURLsTypeB(sourceURL string, targetURL string) castURLs {
_, sourceContent, err := url2Stat(sourceURL)
if err != nil {
// Source does not exist or insufficient privileges.
return castURLs{Error: NewIodine(iodine.New(err, nil))}
}
if !sourceContent.Type.IsRegular() {
// Source is not a regular file.
return castURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
}
_, targetContent, err := url2Stat(targetURL)
if err != nil {
// Source and target are files. Already reduced to Type A.
return prepareSingleCastURLsTypeA(sourceURL, targetURL)
}
if targetContent.Type.IsRegular() { // File to File
// Source and target are files. Already reduced to Type A.
return prepareSingleCastURLsTypeA(sourceURL, targetURL)
}
// Source is a file, target is a directory and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
return castURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
}
targetURLParse, err := client.Parse(targetURL)
if err != nil {
return castURLs{Error: NewIodine(iodine.New(errInvalidTarget{URL: targetURL}, nil))}
}
// Reduce Type B to Type A.
targetURLParse.Path = filepath.Join(targetURLParse.Path, filepath.Base(sourceURLParse.Path))
return prepareSingleCastURLsTypeA(sourceURL, targetURLParse.String())
}
// Check if the target URL represents directory. It may or may not exist yet.
func isTargetURLDir(targetURL string) bool {
targetURLParse, err := client.Parse(targetURL)
if err != nil {
return false
}
if strings.HasSuffix(targetURLParse.String(), string(targetURLParse.Separator)) {
return true
}
_, targetContent, err := url2Stat(targetURL)
if err != nil {
return false
}
if !targetContent.Type.IsDir() { // Target is a dir. Type B
return false
}
return true
}
// Check if the target URL represents folder. It may or may not exist yet.
func isTargetURLDir(targetURL string) bool {
targetURLParse, err := client.Parse(targetURL)
if err != nil {
return false
}
_, targetContent, perr := url2Stat(targetURL)
if perr != nil {
if targetURLParse.Path == string(targetURLParse.Separator) && targetURLParse.Scheme != "" {
return false
}
if strings.HasSuffix(targetURLParse.Path, string(targetURLParse.Separator)) {
return true
}
return false
}
if !targetContent.Type.IsDir() { // Target is a dir.
return false
}
return true
}
// NOTE: All the parse rules should reduced to A: Copy(Source, Target).
//
// * VALID RULES
// =======================
// A: copy(f, f) -> copy(f, f)
// B: copy(f, d) -> copy(f, d/f) -> A
// C: copy(d1..., d2) -> []copy(d1/f, d2/d1/f) -> []A
// D: copy([]{d1... | f}, d2) -> []{copy(d1/f, d2/d1/f) | copy(f, d2/f )} -> []A
//
// * INVALID RULES
// =========================
// A: copy(d, *)
// B: copy(d..., f)
// C: copy(*, d...)
//
func checkCopySyntax(ctx *cli.Context) {
if len(ctx.Args()) < 2 || ctx.Args().First() == "help" {
cli.ShowCommandHelpAndExit(ctx, "cp", 1) // last argument is exit code.
}
// extract URLs.
URLs, err := args2URLs(ctx.Args())
fatalIf(err.Trace(ctx.Args()...), fmt.Sprintf("One or more unknown URL types passed."))
srcURLs := URLs[:len(URLs)-1]
tgtURL := URLs[len(URLs)-1]
/****** Generic rules *******/
// Recursive URLs are not allowed in target.
if isURLRecursive(tgtURL) {
fatalIf(errDummy().Trace(), fmt.Sprintf("Recursive option is not supported for target ‘%s’ argument.", tgtURL))
}
// scope locally
{
url, err := client.Parse(tgtURL)
if err != nil {
fatalIf(probe.NewError(err), fmt.Sprintf("Unable to parse target ‘%s’ argument.", tgtURL))
}
if url.Host != "" {
if url.Path == string(url.Separator) {
fatalIf(errInvalidArgument().Trace(), fmt.Sprintf("Target ‘%s’ does not contain bucket name.", tgtURL))
}
}
}
switch guessCopyURLType(srcURLs, tgtURL) {
case copyURLsTypeA: // File -> File.
checkCopySyntaxTypeA(srcURLs, tgtURL)
case copyURLsTypeB: // File -> Folder.
checkCopySyntaxTypeB(srcURLs, tgtURL)
case copyURLsTypeC: // Folder... -> Folder.
checkCopySyntaxTypeC(srcURLs, tgtURL)
case copyURLsTypeD: // File | Folder... -> Folder.
checkCopySyntaxTypeD(srcURLs, tgtURL)
default:
fatalIf(errInvalidArgument().Trace(), "Invalid arguments to copy command.")
}
}
// NOTE: All the parse rules should reduced to A: Copy(Source, Target).
//
// * VALID RULES
// =======================
// A: copy(f, f) -> copy(f, f)
// B: copy(f, d) -> copy(f, d/f) -> A
// C: copy(d1..., d2) -> []copy(d1/f, d2/d1/f) -> []A
// D: copy([]{d1... | f}, d2) -> []{copy(d1/f, d2/d1/f) | copy(f, d2/f )} -> []A
//
// * INVALID RULES
// =========================
// A: copy(d, *)
// B: copy(d..., f)
// C: copy(*, d...)
//
func checkCopySyntax(ctx *cli.Context) {
if len(ctx.Args()) < 2 || ctx.Args().First() == "help" {
cli.ShowCommandHelpAndExit(ctx, "cp", 1) // last argument is exit code.
}
// extract URLs.
URLs, err := args2URLs(ctx.Args())
if err != nil {
console.Fatalf("One or more unknown URL types found %s. %s\n", ctx.Args(), NewIodine(iodine.New(err, nil)))
}
srcURLs := URLs[:len(URLs)-1]
tgtURL := URLs[len(URLs)-1]
/****** Generic rules *******/
// Recursive URLs are not allowed in target.
if isURLRecursive(tgtURL) {
console.Fatalf("Recursive option is not supported for target ‘%s’ argument. %s\n", tgtURL, NewIodine(iodine.New(errInvalidArgument{}, nil)))
}
url, err := client.Parse(tgtURL)
if err != nil {
console.Fatalf("Unable to parse target ‘%s’ argument. %s\n", tgtURL, NewIodine(iodine.New(err, nil)))
}
if url.Host != "" {
if url.Path == string(url.Separator) {
console.Fatalf("Bucket creation detected for %s, cloud storage URL's should use ‘mc mb’ to create buckets\n", tgtURL)
}
}
switch guessCopyURLType(srcURLs, tgtURL) {
case copyURLsTypeA: // File -> File.
checkCopySyntaxTypeA(srcURLs, tgtURL)
case copyURLsTypeB: // File -> Folder.
checkCopySyntaxTypeB(srcURLs, tgtURL)
case copyURLsTypeC: // Folder... -> Folder.
checkCopySyntaxTypeC(srcURLs, tgtURL)
case copyURLsTypeD: // File | Folder... -> Folder.
checkCopySyntaxTypeD(srcURLs, tgtURL)
default:
console.Fatalln("Invalid arguments. Unable to determine how to copy. Please report this issue at https://github.com/minio/mc/issues")
}
}
// getNewClient gives a new client interface
func getNewClient(urlStr string, auth hostConfig) (client.Client, *probe.Error) {
url, err := client.Parse(urlStr)
if err != nil {
return nil, probe.NewError(err)
}
switch url.Type {
case client.Object: // Minio and S3 compatible cloud storage
s3Config := new(s3.Config)
s3Config.AccessKeyID = func() string {
if auth.AccessKeyID == globalAccessKeyID {
return ""
}
return auth.AccessKeyID
}()
s3Config.SecretAccessKey = func() string {
if auth.SecretAccessKey == globalSecretAccessKey {
return ""
}
return auth.SecretAccessKey
}()
s3Config.AppName = "Minio"
s3Config.AppVersion = globalMCVersion
s3Config.AppComments = []string{os.Args[0], runtime.GOOS, runtime.GOARCH}
s3Config.HostURL = urlStr
s3Config.Debug = globalDebugFlag
s3Client, err := s3.New(s3Config)
if err != nil {
return nil, err.Trace()
}
return s3Client, nil
case client.Filesystem:
fsClient, err := fs.New(urlStr)
if err != nil {
return nil, err.Trace()
}
return fsClient, nil
}
return nil, errInitClient(urlStr).Trace()
}
func url2Client(url string) (client.Client, error) {
// Empty source arg?
urlParse, err := client.Parse(url)
if err != nil {
return nil, iodine.New(err, map[string]string{"URL": url})
}
if urlParse.Path == "" {
return nil, iodine.New(errInvalidURL{URL: url}, map[string]string{"URL": url})
}
urlonfig, err := getHostConfig(url)
if err != nil {
return nil, iodine.New(err, map[string]string{"URL": url})
}
client, err := getNewClient(url, urlonfig)
if err != nil {
return nil, iodine.New(err, map[string]string{"URL": url})
}
return client, nil
}
// URL get url
func (f *fsClient) URL() *client.URL {
url, _ := client.Parse(f.path)
return url
}
// prepareCastURLsTypeC - C:
func prepareCastURLsTypeC(sourceURL string, targetURLs []string) <-chan castURLs {
castURLsCh := make(chan castURLs)
go func() {
defer close(castURLsCh)
if !isURLRecursive(sourceURL) {
// Source is not of recursive type.
castURLsCh <- castURLs{Error: NewIodine(iodine.New(errSourceNotRecursive{URL: sourceURL}, nil))}
return
}
// add `/` after trimming off `...` to emulate directories
sourceURL = stripRecursiveURL(sourceURL)
sourceClient, sourceContent, err := url2Stat(sourceURL)
// Source exist?
if err != nil {
// Source does not exist or insufficient privileges.
castURLsCh <- castURLs{Error: NewIodine(iodine.New(err, nil))}
return
}
if !sourceContent.Type.IsDir() {
// Source is not a dir.
castURLsCh <- castURLs{Error: NewIodine(iodine.New(errSourceIsNotDir{URL: sourceURL}, nil))}
return
}
for sourceContent := range sourceClient.List(true) {
if sourceContent.Err != nil {
// Listing failed.
castURLsCh <- castURLs{Error: NewIodine(iodine.New(sourceContent.Err, nil))}
continue
}
if !sourceContent.Content.Type.IsRegular() {
// Source is not a regular file. Skip it for cast.
continue
}
// All OK.. We can proceed. Type B: source is a file, target is a directory and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
castURLsCh <- castURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceURL}, nil))}
continue
}
var newTargetURLs []string
var sourceContentParse *client.URL
for _, targetURL := range targetURLs {
targetURLParse, err := client.Parse(targetURL)
if err != nil {
castURLsCh <- castURLs{Error: NewIodine(iodine.New(errInvalidTarget{URL: targetURL}, nil))}
continue
}
sourceURLDelimited := sourceURLParse.String()[:strings.LastIndex(sourceURLParse.String(),
string(sourceURLParse.Separator))+1]
sourceContentName := sourceContent.Content.Name
sourceContentURL := sourceURLDelimited + sourceContentName
sourceContentParse, err = client.Parse(sourceContentURL)
if err != nil {
castURLsCh <- castURLs{Error: NewIodine(iodine.New(errInvalidSource{URL: sourceContentName}, nil))}
continue
}
// Construct target path from recursive path of source without its prefix dir.
newTargetURLParse := *targetURLParse
newTargetURLParse.Path = filepath.Join(newTargetURLParse.Path, sourceContentName)
newTargetURLs = append(newTargetURLs, newTargetURLParse.String())
}
castURLsCh <- prepareCastURLsTypeA(sourceContentParse.String(), newTargetURLs)
}
}()
return castURLsCh
}
// SINGLE SOURCE - Type C: copy(d1..., d2) -> []copy(d1/f, d1/d2/f) -> []A
// prepareCopyRecursiveURLTypeC - prepares target and source URLs for copying.
func prepareCopyURLsTypeC(sourceURL, targetURL string) <-chan copyURLs {
copyURLsCh := make(chan copyURLs)
go func(sourceURL, targetURL string, copyURLsCh chan copyURLs) {
defer close(copyURLsCh)
if !isURLRecursive(sourceURL) {
// Source is not of recursive type.
copyURLsCh <- copyURLs{Error: errSourceNotRecursive(sourceURL).Trace()}
return
}
// add `/` after trimming off `...` to emulate folders
sourceURL = stripRecursiveURL(sourceURL)
sourceClient, sourceContent, err := url2Stat(sourceURL)
if err != nil {
// Source does not exist or insufficient privileges.
copyURLsCh <- copyURLs{Error: err.Trace(sourceURL)}
return
}
if !sourceContent.Type.IsDir() {
// Source is not a dir.
copyURLsCh <- copyURLs{Error: errSourceIsNotDir(sourceURL).Trace()}
return
}
for sourceContent := range sourceClient.List(true) {
if sourceContent.Err != nil {
// Listing failed.
copyURLsCh <- copyURLs{Error: sourceContent.Err.Trace()}
continue
}
if !sourceContent.Content.Type.IsRegular() {
// Source is not a regular file. Skip it for copy.
continue
}
// All OK.. We can proceed. Type B: source is a file, target is a folder and exists.
sourceURLParse, err := client.Parse(sourceURL)
if err != nil {
copyURLsCh <- copyURLs{Error: errInvalidSource(sourceURL).Trace()}
continue
}
targetURLParse, err := client.Parse(targetURL)
if err != nil {
copyURLsCh <- copyURLs{Error: errInvalidTarget(targetURL).Trace()}
continue
}
sourceURLDelimited := sourceURLParse.String()[:strings.LastIndex(sourceURLParse.String(),
string(sourceURLParse.Separator))+1]
sourceContentName := sourceContent.Content.Name
sourceContentURL := sourceURLDelimited + sourceContentName
sourceContentParse, err := client.Parse(sourceContentURL)
if err != nil {
copyURLsCh <- copyURLs{Error: errInvalidSource(sourceContentName).Trace()}
continue
}
// Construct target path from recursive path of source without its prefix dir.
newTargetURLParse := *targetURLParse
newTargetURLParse.Path = filepath.Join(newTargetURLParse.Path, sourceContentName)
copyURLsCh <- prepareCopyURLsTypeA(sourceContentParse.String(), newTargetURLParse.String())
}
}(sourceURL, targetURL, copyURLsCh)
return copyURLsCh
}
