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82
util/error_utils.go
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82
util/error_utils.go
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@@ -0,0 +1,82 @@
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/*
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* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package util
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import (
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"github.com/gin-gonic/gin"
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"net/http"
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)
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var MessageInvalidToken = "Invalid token."
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var MessageInvalidCredentials = "Invalid credentials. Invalid username or password."
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var MessageTokenAlreadyAssigned = "Access token already has a profile assigned."
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var MessageAccessDenied = "Access denied."
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var MessageProfileNotFound = "No such profile."
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type YggdrasilError struct {
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ErrorCode string `json:"error"`
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ErrorMessage string `json:"errorMessage"`
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Cause string `json:"cause,omitempty"`
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Status int `json:"-"`
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}
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func (e YggdrasilError) Error() string {
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return e.ErrorMessage
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}
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func NewIllegalArgumentError(msg string) (err YggdrasilError) {
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err.ErrorCode = "IllegalArgumentException"
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err.Status = http.StatusBadRequest
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err.ErrorMessage = msg
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return err
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}
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func NewForbiddenOperationError(msg string) (err YggdrasilError) {
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err.ErrorCode = "ForbiddenOperationException"
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err.Status = http.StatusForbidden
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err.ErrorMessage = msg
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return err
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}
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func HandleError(c *gin.Context, err error) {
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switch x := err.(type) {
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case YggdrasilError:
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if x.Status == 0 {
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x.Status = http.StatusForbidden
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}
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if x.Status == http.StatusNoContent {
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c.Status(x.Status)
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} else {
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c.AbortWithStatusJSON(x.Status, x)
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}
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break
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case *YggdrasilError:
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if x.Status == 0 {
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x.Status = http.StatusForbidden
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}
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if x.Status == http.StatusNoContent {
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c.Status(x.Status)
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} else {
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c.AbortWithStatusJSON(x.Status, x)
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}
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break
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default:
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c.AbortWithStatusJSON(http.StatusForbidden, x.Error())
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break
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}
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}
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165
util/http_utils.go
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165
util/http_utils.go
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@@ -0,0 +1,165 @@
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/*
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* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package util
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import (
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"bytes"
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"encoding/json"
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"io/ioutil"
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"net/http"
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)
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func GetObject(url string, value interface{}) error {
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resp, err := http.Get(url)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNoContent {
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return &YggdrasilError{
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Status: http.StatusNoContent,
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ErrorCode: "IllegalArgumentException",
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ErrorMessage: "Http No Content",
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}
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} else if resp.StatusCode/100 == 4 {
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decoder := json.NewDecoder(resp.Body)
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errResp := YggdrasilError{}
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err = decoder.Decode(&errResp)
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if err != nil {
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return err
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}
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return errResp
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} else {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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return json.Unmarshal(body, value)
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}
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}
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func GetForString(url string) (string, error) {
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resp, err := http.Get(url)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNoContent {
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return "", nil
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} else if resp.StatusCode/100 == 4 {
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decoder := json.NewDecoder(resp.Body)
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errResp := YggdrasilError{}
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err = decoder.Decode(&errResp)
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if err != nil {
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return "", err
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}
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return "", errResp
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} else {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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return string(body), nil
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}
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}
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func PostObject(url string, data interface{}, result interface{}) error {
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buf := bytes.Buffer{}
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encoder := json.NewEncoder(&buf)
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err := encoder.Encode(data)
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if err != nil {
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return err
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}
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resp, err := http.Post(url, "application/json", &buf)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNoContent {
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return &YggdrasilError{
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Status: http.StatusNoContent,
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ErrorCode: "IllegalArgumentException",
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ErrorMessage: "Http No Content",
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}
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} else if resp.StatusCode/100 == 4 {
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decoder := json.NewDecoder(resp.Body)
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errResp := YggdrasilError{}
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err = decoder.Decode(&errResp)
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if err != nil {
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return err
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}
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return errResp
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} else {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return err
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}
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return json.Unmarshal(body, result)
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}
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}
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func PostObjectForError(url string, data interface{}) error {
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buf := bytes.Buffer{}
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encoder := json.NewEncoder(&buf)
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err := encoder.Encode(data)
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if err != nil {
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return err
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}
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resp, err := http.Post(url, "application/json", &buf)
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if err != nil {
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return err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNoContent {
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return nil
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} else {
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decoder := json.NewDecoder(resp.Body)
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errResp := YggdrasilError{}
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err = decoder.Decode(&errResp)
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if err != nil {
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return err
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}
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return errResp
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}
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}
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func PostForString(url string, data []byte) (string, error) {
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reader := bytes.NewReader(data)
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resp, err := http.Post(url, "application/json", reader)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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if resp.StatusCode == http.StatusNoContent {
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return "", nil
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} else if resp.StatusCode/100 == 4 {
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decoder := json.NewDecoder(resp.Body)
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errResp := YggdrasilError{}
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err = decoder.Decode(&errResp)
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if err != nil {
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return "", err
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}
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return "", errResp
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} else {
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body, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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return string(body), nil
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}
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}
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84
util/properties_utils.go
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84
util/properties_utils.go
Normal file
@@ -0,0 +1,84 @@
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/*
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* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package util
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import (
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"crypto"
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"crypto/rand"
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"crypto/rsa"
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"crypto/sha1"
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"encoding/base64"
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"encoding/json"
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"log"
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)
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type Property struct {
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Name string
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Value interface{}
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}
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type StringProperty struct {
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Name string `json:"name,omitempty"`
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Value string `json:"value,omitempty"`
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}
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// PrivateKey RSA PKCS8 Private Key
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var PrivateKey *rsa.PrivateKey
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func EncodeBase64(properties ...Property) (string, error) {
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obj := make(map[string]interface{})
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for _, property := range properties {
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obj[property.Name] = property.Value
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}
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jsonBytes, err := json.Marshal(obj)
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if err != nil {
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return "", err
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}
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return base64.StdEncoding.EncodeToString(jsonBytes), nil
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}
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func Properties(sign bool, properties ...StringProperty) []map[string]string {
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list := make([]map[string]string, 0, len(properties))
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for _, property := range properties {
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obj := map[string]string{
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"name": property.Name,
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"value": property.Value,
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}
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if sign {
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err := error(nil)
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obj["signature"], err = Sign(property.Value)
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if err != nil {
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log.Printf("无法签名字符串 '%s', 原因: %s", property.Value, err.Error())
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}
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}
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list = append(list, obj)
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}
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return list
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}
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func Sign(value string) (string, error) {
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if PrivateKey == nil {
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panic("未初始化私钥")
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}
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sum := sha1.Sum([]byte(value))
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sig, err := rsa.SignPKCS1v15(rand.Reader, PrivateKey, crypto.SHA1, sum[:])
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if err != nil {
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return "", err
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}
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return base64.StdEncoding.EncodeToString(sig), nil
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}
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37
util/uuid_utils.go
Normal file
37
util/uuid_utils.go
Normal file
@@ -0,0 +1,37 @@
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/*
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* Copyright (C) 2022. Gardel <sunxinao@hotmail.com> and contributors
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package util
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import (
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"encoding/hex"
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"github.com/google/uuid"
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)
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func UnsignedString(u uuid.UUID) string {
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var buf [32]byte
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hex.Encode(buf[:], u[:])
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return string(buf[:])
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}
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func ToUUID(str string) (uuid.UUID, error) {
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return uuid.Parse(str)
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}
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func RandomUUID() string {
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return UnsignedString(uuid.New())
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}
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