119 lines
2.9 KiB
Go
119 lines
2.9 KiB
Go
// Copyright 2015 Vadim Kravcenko
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//
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// Licensed under the Apache License, Version 2.0 (the "License"): you may
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// not use this file except in compliance with the License. You may obtain
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// a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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// License for the specific language governing permissions and limitations
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// under the License.
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package gojenkins
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import (
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"crypto/md5"
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path"
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)
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// Represents an Artifact
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type Artifact struct {
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Jenkins *Jenkins
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Build *Build
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FileName string
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Path string
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}
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// Get raw byte data of Artifact
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func (a Artifact) GetData() ([]byte, error) {
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var data string
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response, err := a.Jenkins.Requester.Get(a.Path, &data, nil)
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if err != nil {
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return nil, err
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}
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code := response.StatusCode
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if code != 200 {
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Error.Printf("Jenkins responded with StatusCode: %d", code)
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return nil, errors.New("Could not get File Contents")
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}
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return []byte(data), nil
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}
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// Save artifact to a specific path, using your own filename.
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func (a Artifact) Save(path string) (bool, error) {
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data, err := a.GetData()
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if err != nil {
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return false, errors.New("No Data received, not saving file.")
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}
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if _, err = os.Stat(path); err == nil {
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Warning.Println("Local Copy already exists, Overwriting...")
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}
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err = ioutil.WriteFile(path, data, 0644)
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a.validateDownload(path)
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if err != nil {
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return false, err
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}
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return true, nil
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}
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// Save Artifact to directory using Artifact filename.
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func (a Artifact) SaveToDir(dir string) (bool, error) {
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if _, err := os.Stat(dir); err != nil {
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Error.Printf("can't save artifact: directory %s does not exist", dir)
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return false, fmt.Errorf("can't save artifact: directory %s does not exist", dir)
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}
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saved, err := a.Save(path.Join(dir, a.FileName))
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if err != nil {
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return saved, nil
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}
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return saved, nil
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}
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// Compare Remote and local MD5
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func (a Artifact) validateDownload(path string) (bool, error) {
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localHash := a.getMD5local(path)
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fp := FingerPrint{Jenkins: a.Jenkins, Base: "/fingerprint/", Id: localHash, Raw: new(FingerPrintResponse)}
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valid, err := fp.ValidateForBuild(a.FileName, a.Build)
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if err != nil {
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return false, err
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}
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if !valid {
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return false, errors.New("FingerPrint of the downloaded artifact could not be verified")
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}
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return true, nil
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}
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// Get Local MD5
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func (a Artifact) getMD5local(path string) string {
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h := md5.New()
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localFile, err := os.Open(path)
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if err != nil {
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return ""
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}
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buffer := make([]byte, 2^20)
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n, err := localFile.Read(buffer)
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defer localFile.Close()
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for err == nil {
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io.WriteString(h, string(buffer[0:n]))
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n, err = localFile.Read(buffer)
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}
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return fmt.Sprintf("%x", h.Sum(nil))
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}
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