26dbc3d8e5
This update pulls in the latest version of garm-provider-common which removes its dependency on go-github, making future updates much less painful. Signed-off-by: Gabriel Adrian Samfira <gsamfira@cloudbasesolutions.com>
327 lines
8.4 KiB
Go
327 lines
8.4 KiB
Go
// Copyright 2023 Cloudbase Solutions SRL
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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 util
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import (
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"bytes"
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"compress/gzip"
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"crypto/rand"
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"encoding/base64"
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"encoding/binary"
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"fmt"
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"io"
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"math/big"
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"net/http"
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"os"
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"path"
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"regexp"
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"strings"
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"unicode"
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"unicode/utf16"
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runnerErrors "github.com/cloudbase/garm-provider-common/errors"
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"github.com/cloudbase/garm-provider-common/params"
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"github.com/google/uuid"
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gorillaHandlers "github.com/gorilla/handlers"
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"github.com/pkg/errors"
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"github.com/teris-io/shortid"
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"golang.org/x/crypto/bcrypt"
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lumberjack "gopkg.in/natefinch/lumberjack.v2"
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)
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const alphanumeric = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
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// From: https://www.alexedwards.net/blog/validation-snippets-for-go#email-validation
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var rxEmail = regexp.MustCompile("^[a-zA-Z0-9.!#$%&'*+\\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*$")
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var (
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OSToOSTypeMap map[string]params.OSType = map[string]params.OSType{
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"almalinux": params.Linux,
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"alma": params.Linux,
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"alpine": params.Linux,
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"archlinux": params.Linux,
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"arch": params.Linux,
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"centos": params.Linux,
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"ubuntu": params.Linux,
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"rhel": params.Linux,
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"suse": params.Linux,
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"opensuse": params.Linux,
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"fedora": params.Linux,
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"debian": params.Linux,
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"flatcar": params.Linux,
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"gentoo": params.Linux,
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"rockylinux": params.Linux,
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"rocky": params.Linux,
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"windows": params.Windows,
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}
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githubArchMapping map[string]string = map[string]string{
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"x86_64": "x64",
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"amd64": "x64",
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"armv7l": "arm",
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"aarch64": "arm64",
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"x64": "x64",
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"arm": "arm",
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"arm64": "arm64",
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}
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githubOSTypeMap map[string]string = map[string]string{
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"linux": "linux",
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"windows": "win",
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}
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//
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githubOSTag = map[params.OSType]string{
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params.Linux: "Linux",
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params.Windows: "Windows",
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}
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)
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// ResolveToGithubArch returns the cpu architecture as it is defined in the GitHub
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// tools download list. We use it to find the proper tools for the OS/Arch combo we're
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// deploying.
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func ResolveToGithubArch(arch string) (string, error) {
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ghArch, ok := githubArchMapping[arch]
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if !ok {
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return "", runnerErrors.NewNotFoundError("arch %s is unknown", arch)
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}
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return ghArch, nil
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}
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// ResolveToGithubArch returns the OS type as it is defined in the GitHub
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// tools download list. We use it to find the proper tools for the OS/Arch combo we're
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// deploying.
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func ResolveToGithubOSType(osType string) (string, error) {
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ghOS, ok := githubOSTypeMap[osType]
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if !ok {
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return "", runnerErrors.NewNotFoundError("os %s is unknown", osType)
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}
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return ghOS, nil
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}
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// ResolveToGithubTag returns the default OS tag that self hosted runners automatically
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// (and forcefully) adds to every runner that gets deployed. We need to keep track of those
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// tags internally as well.
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func ResolveToGithubTag(os params.OSType) (string, error) {
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ghOS, ok := githubOSTag[os]
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if !ok {
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return "", runnerErrors.NewNotFoundError("os %s is unknown", os)
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}
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return ghOS, nil
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}
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// IsValidEmail returs a bool indicating if an email is valid
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func IsValidEmail(email string) bool {
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if len(email) > 254 || !rxEmail.MatchString(email) {
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return false
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}
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return true
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}
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func IsAlphanumeric(s string) bool {
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for _, r := range s {
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if !unicode.IsLetter(r) && !unicode.IsNumber(r) {
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return false
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}
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}
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return true
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}
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// GetLoggingWriter returns a new io.Writer suitable for logging.
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func GetLoggingWriter(logFile string) (io.Writer, error) {
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var writer io.Writer = os.Stdout
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if logFile != "" {
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dirname := path.Dir(logFile)
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if _, err := os.Stat(dirname); err != nil {
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if !os.IsNotExist(err) {
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return nil, fmt.Errorf("failed to create log folder")
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}
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if err := os.MkdirAll(dirname, 0o711); err != nil {
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return nil, fmt.Errorf("failed to create log folder")
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}
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}
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writer = &lumberjack.Logger{
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Filename: logFile,
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MaxSize: 500, // megabytes
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MaxBackups: 3,
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MaxAge: 28, // days
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Compress: true, // disabled by default
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}
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}
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return writer, nil
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}
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func ConvertFileToBase64(file string) (string, error) {
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bytes, err := os.ReadFile(file)
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if err != nil {
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return "", errors.Wrap(err, "reading file")
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}
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return base64.StdEncoding.EncodeToString(bytes), nil
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}
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func OSToOSType(os string) (params.OSType, error) {
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osType, ok := OSToOSTypeMap[strings.ToLower(os)]
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if !ok {
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return params.Unknown, fmt.Errorf("no OS to OS type mapping for %s", os)
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}
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return osType, nil
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}
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func GetTools(osType params.OSType, osArch params.OSArch, tools []params.RunnerApplicationDownload) (params.RunnerApplicationDownload, error) {
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// Validate image OS. Linux only for now.
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switch osType {
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case params.Linux:
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case params.Windows:
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default:
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return params.RunnerApplicationDownload{}, fmt.Errorf("unsupported OS type: %s", osType)
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}
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switch osArch {
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case params.Amd64:
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case params.Arm:
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case params.Arm64:
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default:
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return params.RunnerApplicationDownload{}, fmt.Errorf("unsupported OS arch: %s", osArch)
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}
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// Find tools for OS/Arch.
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for _, tool := range tools {
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if tool.GetOS() == "" || tool.GetArchitecture() == "" {
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continue
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}
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ghArch, err := ResolveToGithubArch(string(osArch))
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if err != nil {
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continue
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}
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ghOS, err := ResolveToGithubOSType(string(osType))
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if err != nil {
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continue
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}
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if tool.GetArchitecture() == ghArch && tool.GetOS() == ghOS {
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return tool, nil
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}
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}
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return params.RunnerApplicationDownload{}, fmt.Errorf("failed to find tools for OS %s and arch %s", osType, osArch)
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}
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// GetRandomString returns a secure random string
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func GetRandomString(n int) (string, error) {
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data := make([]byte, n)
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_, err := rand.Read(data)
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if err != nil {
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return "", errors.Wrap(err, "getting random data")
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}
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for i, b := range data {
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data[i] = alphanumeric[b%byte(len(alphanumeric))]
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}
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return string(data), nil
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}
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// PaswsordToBcrypt returns a bcrypt hash of the specified password using the default cost
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func PaswsordToBcrypt(password string) (string, error) {
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hashedPassword, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
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if err != nil {
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return "", fmt.Errorf("failed to hash password")
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}
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return string(hashedPassword), nil
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}
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func NewLoggingMiddleware(writer io.Writer) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return gorillaHandlers.CombinedLoggingHandler(writer, next)
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}
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}
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func SanitizeLogEntry(entry string) string {
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return strings.Replace(strings.Replace(entry, "\n", "", -1), "\r", "", -1)
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}
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func toBase62(uuid []byte) string {
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var i big.Int
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i.SetBytes(uuid[:])
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return i.Text(62)
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}
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func NewID() string {
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short, err := shortid.Generate()
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if err == nil {
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return toBase62([]byte(short))
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}
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newUUID := uuid.New()
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return toBase62(newUUID[:])
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}
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func UTF16FromString(s string) ([]uint16, error) {
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buf := make([]uint16, 0, len(s)*2+1)
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for _, r := range s {
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buf = utf16.AppendRune(buf, r)
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}
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return utf16.AppendRune(buf, '\x00'), nil
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}
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func UTF16ToString(s []uint16) string {
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for i, v := range s {
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if v == 0 {
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s = s[0:i]
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break
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}
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}
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return string(utf16.Decode(s))
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}
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func Uint16ToByteArray(u []uint16) []byte {
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ret := make([]byte, (len(u)-1)*2)
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for i := 0; i < len(u)-1; i++ {
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binary.LittleEndian.PutUint16(ret[i*2:], uint16(u[i]))
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}
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return ret
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}
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func UTF16EncodedByteArrayFromString(s string) ([]byte, error) {
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asUint16, err := UTF16FromString(s)
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if err != nil {
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return nil, fmt.Errorf("failed to encode to uint16: %w", err)
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}
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asBytes := Uint16ToByteArray(asUint16)
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return asBytes, nil
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}
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func CompressData(data []byte) ([]byte, error) {
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var b bytes.Buffer
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gz := gzip.NewWriter(&b)
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_, err := gz.Write(data)
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if err != nil {
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return nil, fmt.Errorf("failed to compress data: %w", err)
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}
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if err = gz.Flush(); err != nil {
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return nil, fmt.Errorf("failed to flush buffer: %w", err)
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}
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if err = gz.Close(); err != nil {
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return nil, fmt.Errorf("failed to close buffer: %w", err)
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}
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return b.Bytes(), nil
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}
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