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Use storage layout template for home directory definition (#476)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| // Copyright 2018-2019 CERN | ||
| // | ||
| // 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. | ||
| // | ||
| // In applying this license, CERN does not waive the privileges and immunities | ||
| // granted to it by virtue of its status as an Intergovernmental Organization | ||
| // or submit itself to any jurisdiction. | ||
|
|
||
| package helper | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "regexp" | ||
| "strconv" | ||
| "strings" | ||
| "text/template" | ||
|
|
||
| "github.com/cs3org/reva/pkg/errtypes" | ||
| "github.com/pkg/errors" | ||
|
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| userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1" | ||
| ) | ||
|
|
||
| type layoutTemplate struct { | ||
| Username string //the username | ||
| UsernameLower string //the username in lowercase | ||
| UsernamePrefixCount string //first letters of username in lowercase eg: {{.UsernamePrefixCount.3}} will take the first 3 chars and make them lowercase, defaults to 1 | ||
| UsernameFirstLetter string //first letter of username in lowercase, equivalent as {{.UsernamePrefixCount.1}} but easy to read | ||
| Provider string //Provider/domain of user in lowercase | ||
| } | ||
|
|
||
| // GetUserHomePath converts username into user's home path according to layout | ||
| func GetUserHomePath(u *userpb.User, layout string) (string, error) { | ||
| if u.Username == "" { | ||
| return "", errors.Wrap(errtypes.UserRequired("userrequired"), "user has no username") | ||
| } | ||
|
|
||
| usernameSplit := strings.Split(u.Username, "@") | ||
| if len(usernameSplit) == 1 { | ||
| usernameSplit = append(usernameSplit, "_unknown") | ||
| } | ||
| if usernameSplit[1] == "" { | ||
| usernameSplit[1] = "_unknown" | ||
| } | ||
|
|
||
| // handle {{.UsernamePrefixCount.x}} | ||
| // where x is an int, pull it out and remove it from the go template | ||
| letters := 1 | ||
| reg := regexp.MustCompile(`\{\{\.UsernamePrefixCount\.[0-9]+\}\}`) | ||
| rmatches := reg.FindAllString(layout, -1) | ||
| if rmatches != nil { | ||
| reg := regexp.MustCompile("[^0-9]+") | ||
| f, _ := strconv.ParseInt(reg.ReplaceAllString(rmatches[0], ""), 10, 64) | ||
| if f > 1 { | ||
| letters = int(f) | ||
| } | ||
| layout = strings.Replace(layout, "{{.UsernamePrefixCount."+strconv.Itoa(letters)+"}}", "{{.UsernamePrefixCount}}", -1) | ||
| } | ||
|
|
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| pathTemplate := layoutTemplate{ | ||
| Username: u.Username, | ||
| UsernameLower: strings.ToLower(u.Username), | ||
| UsernamePrefixCount: strings.ToLower(string([]rune(usernameSplit[0])[0:letters])), | ||
| UsernameFirstLetter: strings.ToLower(string([]rune(usernameSplit[0])[0])), | ||
| Provider: strings.ToLower(usernameSplit[1]), | ||
| } | ||
| tmpl, err := template.New("userhomepath").Parse(layout) | ||
| if err != nil { | ||
| return "", errors.Wrap(errtypes.UserRequired("userrequired"), fmt.Sprintf("template parse error: %s", err.Error())) | ||
| } | ||
| buf := new(bytes.Buffer) | ||
| err = tmpl.Execute(buf, pathTemplate) | ||
| if err != nil { | ||
| return "", errors.Wrap(errtypes.UserRequired("userrequired"), fmt.Sprintf("template execute error: %s", err.Error())) | ||
| } | ||
|
|
||
| return buf.String(), nil | ||
| } |
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