From 2f520ed92f11ac75fea8ec7e21f5814a8e799606 Mon Sep 17 00:00:00 2001 From: Harshavardhana Date: Fri, 14 Oct 2016 11:15:59 -0700 Subject: [PATCH] Remove errors package, add comments and simplify. (#2925) --- cmd/certs.go | 30 ++- cmd/globals.go | 2 +- cmd/server-startup-msg.go | 10 +- cmd/server-startup-msg_test.go | 12 +- vendor/github.com/pkg/errors/LICENSE | 23 -- vendor/github.com/pkg/errors/README.md | 52 ----- vendor/github.com/pkg/errors/appveyor.yml | 32 --- vendor/github.com/pkg/errors/errors.go | 269 ---------------------- vendor/github.com/pkg/errors/stack.go | 178 -------------- vendor/vendor.json | 6 - 10 files changed, 25 insertions(+), 589 deletions(-) delete mode 100644 vendor/github.com/pkg/errors/LICENSE delete mode 100644 vendor/github.com/pkg/errors/README.md delete mode 100644 vendor/github.com/pkg/errors/appveyor.yml delete mode 100644 vendor/github.com/pkg/errors/errors.go delete mode 100644 vendor/github.com/pkg/errors/stack.go diff --git a/cmd/certs.go b/cmd/certs.go index 5b3b87c0e..8cde52b13 100644 --- a/cmd/certs.go +++ b/cmd/certs.go @@ -19,11 +19,10 @@ package cmd import ( "crypto/x509" "encoding/pem" + "errors" "io/ioutil" "os" "path/filepath" - - "github.com/pkg/errors" ) // createCertsPath create certs path. @@ -93,46 +92,43 @@ func isSSL() bool { return false } +// Reads certificated file and returns a list of parsed certificates. func readCertificateChain() ([]*x509.Certificate, error) { - certPath := filepath.Join(mustGetCertsPath(), globalMinioCertFile) - file, err := os.Open(certPath) - + file, err := os.Open(mustGetCertFile()) if err != nil { - return nil, errors.Wrapf(err, "Could not open certificate for reading") + return nil, err } defer file.Close() - bytes, err2 := ioutil.ReadAll(file) - - if err2 != nil { - return nil, errors.Wrapf(err2, "Could not read certificate contents") + // Read the cert successfully. + bytes, err := ioutil.ReadAll(file) + if err != nil { + return nil, err } + // Proceed to parse the certificates. return parseCertificateChain(bytes) } -// Parses certificate chain +// Parses certificate chain, returns a list of parsed certificates. func parseCertificateChain(bytes []byte) ([]*x509.Certificate, error) { var certs []*x509.Certificate var block *pem.Block current := bytes + // Parse all certs in the chain. for len(current) > 0 { block, current = pem.Decode(current) - if block == nil { return nil, errors.New("Could not PEM block") } - + // Parse the decoded certificate. cert, err := x509.ParseCertificate(block.Bytes) - if err != nil { - return nil, errors.Wrapf(err, "Could not parse certficiate") + return nil, err } - certs = append(certs, cert) } - return certs, nil } diff --git a/cmd/globals.go b/cmd/globals.go index 8c27d127c..ce3ed67cd 100644 --- a/cmd/globals.go +++ b/cmd/globals.go @@ -36,7 +36,7 @@ const ( globalMinioCertFile = "public.crt" globalMinioKeyFile = "private.key" globalMinioConfigFile = "config.json" - globalMinioCertExpireWarnDays = 30 + globalMinioCertExpireWarnDays = time.Hour * 24 * 30 // 30 days. // Add new global values here. ) diff --git a/cmd/server-startup-msg.go b/cmd/server-startup-msg.go index be56962bf..bf037db73 100644 --- a/cmd/server-startup-msg.go +++ b/cmd/server-startup-msg.go @@ -54,7 +54,9 @@ func printStartupMessage(endPoints []string) { printStorageInfo(objAPI.StorageInfo()) } - if certs, err := readCertificateChain(); err == nil { + if isSSL() { + certs, err := readCertificateChain() + fatalIf(err, "Unable to read certificate chain.") printCertificateMsg(certs) } } @@ -160,22 +162,20 @@ func getCertificateChainMsg(certs []*x509.Certificate) string { msg := colorBlue("\nCertificate expiry info:\n") totalCerts := len(certs) var expiringCerts int - for i := totalCerts - 1; i >= 0; i-- { cert := certs[i] - - if cert.NotAfter.Before(time.Now().Add(time.Hour * 24 * globalMinioCertExpireWarnDays)) { + if cert.NotAfter.Before(time.Now().UTC().Add(globalMinioCertExpireWarnDays)) { expiringCerts++ msg += fmt.Sprintf(colorBold("#%d %s will expire on %s\n"), expiringCerts, cert.Subject.CommonName, cert.NotAfter) } } - if expiringCerts > 0 { return msg } return "" } +// Prints the certificate expiry message. func printCertificateMsg(certs []*x509.Certificate) { console.Println(getCertificateChainMsg(certs)) } diff --git a/cmd/server-startup-msg_test.go b/cmd/server-startup-msg_test.go index 17749b2eb..2c57d1c97 100644 --- a/cmd/server-startup-msg_test.go +++ b/cmd/server-startup-msg_test.go @@ -47,10 +47,10 @@ func TestStorageInfoMsg(t *testing.T) { // Tests if certificate expiry warning will be printed func TestCertificateExpiryInfo(t *testing.T) { // given - var expiredDate = time.Now().Add(time.Hour * 24 * (globalMinioCertExpireWarnDays - 1)) + var expiredDate = time.Now().Add(time.Hour * 24 * (30 - 1)) // 29 days. var fakeCerts = []*x509.Certificate{ - &x509.Certificate{ + { NotAfter: expiredDate, Subject: pkix.Name{ CommonName: "Test cert", @@ -61,10 +61,10 @@ func TestCertificateExpiryInfo(t *testing.T) { expectedMsg := colorBlue("\nCertificate expiry info:\n") + colorBold(fmt.Sprintf("#1 Test cert will expire on %s\n", expiredDate)) - // when + // When msg := getCertificateChainMsg(fakeCerts) - // then + // Then if msg != expectedMsg { t.Fatalf("Expected message was: %s, got: %s", expectedMsg, msg) } @@ -73,10 +73,10 @@ func TestCertificateExpiryInfo(t *testing.T) { // Tests if certificate expiry warning will not be printed if certificate not expired func TestCertificateNotExpired(t *testing.T) { // given - var expiredDate = time.Now().Add(time.Hour * 24 * (globalMinioCertExpireWarnDays + 1)) + var expiredDate = time.Now().Add(time.Hour * 24 * (30 + 1)) // 31 days. var fakeCerts = []*x509.Certificate{ - &x509.Certificate{ + { NotAfter: expiredDate, Subject: pkix.Name{ CommonName: "Test cert", diff --git a/vendor/github.com/pkg/errors/LICENSE b/vendor/github.com/pkg/errors/LICENSE deleted file mode 100644 index 835ba3e75..000000000 --- a/vendor/github.com/pkg/errors/LICENSE +++ /dev/null @@ -1,23 +0,0 @@ -Copyright (c) 2015, Dave Cheney -All rights reserved. - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright notice, this - list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright notice, - this list of conditions and the following disclaimer in the documentation - and/or other materials provided with the distribution. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE -DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE -FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL -DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR -SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, -OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. diff --git a/vendor/github.com/pkg/errors/README.md b/vendor/github.com/pkg/errors/README.md deleted file mode 100644 index 273db3c98..000000000 --- a/vendor/github.com/pkg/errors/README.md +++ /dev/null @@ -1,52 +0,0 @@ -# errors [![Travis-CI](https://travis-ci.org/pkg/errors.svg)](https://travis-ci.org/pkg/errors) [![AppVeyor](https://ci.appveyor.com/api/projects/status/b98mptawhudj53ep/branch/master?svg=true)](https://ci.appveyor.com/project/davecheney/errors/branch/master) [![GoDoc](https://godoc.org/github.com/pkg/errors?status.svg)](http://godoc.org/github.com/pkg/errors) [![Report card](https://goreportcard.com/badge/github.com/pkg/errors)](https://goreportcard.com/report/github.com/pkg/errors) - -Package errors provides simple error handling primitives. - -`go get github.com/pkg/errors` - -The traditional error handling idiom in Go is roughly akin to -```go -if err != nil { - return err -} -``` -which applied recursively up the call stack results in error reports without context or debugging information. The errors package allows programmers to add context to the failure path in their code in a way that does not destroy the original value of the error. - -## Adding context to an error - -The errors.Wrap function returns a new error that adds context to the original error. For example -```go -_, err := ioutil.ReadAll(r) -if err != nil { - return errors.Wrap(err, "read failed") -} -``` -## Retrieving the cause of an error - -Using `errors.Wrap` constructs a stack of errors, adding context to the preceding error. Depending on the nature of the error it may be necessary to reverse the operation of errors.Wrap to retrieve the original error for inspection. Any error value which implements this interface can be inspected by `errors.Cause`. -```go -type causer interface { - Cause() error -} -``` -`errors.Cause` will recursively retrieve the topmost error which does not implement `causer`, which is assumed to be the original cause. For example: -```go -switch err := errors.Cause(err).(type) { -case *MyError: - // handle specifically -default: - // unknown error -} -``` - -[Read the package documentation for more information](https://godoc.org/github.com/pkg/errors). - -## Contributing - -We welcome pull requests, bug fixes and issue reports. With that said, the bar for adding new symbols to this package is intentionally set high. - -Before proposing a change, please discuss your change by raising an issue. - -## Licence - -BSD-2-Clause diff --git a/vendor/github.com/pkg/errors/appveyor.yml b/vendor/github.com/pkg/errors/appveyor.yml deleted file mode 100644 index a932eade0..000000000 --- a/vendor/github.com/pkg/errors/appveyor.yml +++ /dev/null @@ -1,32 +0,0 @@ -version: build-{build}.{branch} - -clone_folder: C:\gopath\src\github.com\pkg\errors -shallow_clone: true # for startup speed - -environment: - GOPATH: C:\gopath - -platform: - - x64 - -# http://www.appveyor.com/docs/installed-software -install: - # some helpful output for debugging builds - - go version - - go env - # pre-installed MinGW at C:\MinGW is 32bit only - # but MSYS2 at C:\msys64 has mingw64 - - set PATH=C:\msys64\mingw64\bin;%PATH% - - gcc --version - - g++ --version - -build_script: - - go install -v ./... - -test_script: - - set PATH=C:\gopath\bin;%PATH% - - go test -v ./... - -#artifacts: -# - path: '%GOPATH%\bin\*.exe' -deploy: off diff --git a/vendor/github.com/pkg/errors/errors.go b/vendor/github.com/pkg/errors/errors.go deleted file mode 100644 index 842ee8045..000000000 --- a/vendor/github.com/pkg/errors/errors.go +++ /dev/null @@ -1,269 +0,0 @@ -// Package errors provides simple error handling primitives. -// -// The traditional error handling idiom in Go is roughly akin to -// -// if err != nil { -// return err -// } -// -// which applied recursively up the call stack results in error reports -// without context or debugging information. The errors package allows -// programmers to add context to the failure path in their code in a way -// that does not destroy the original value of the error. -// -// Adding context to an error -// -// The errors.Wrap function returns a new error that adds context to the -// original error by recording a stack trace at the point Wrap is called, -// and the supplied message. For example -// -// _, err := ioutil.ReadAll(r) -// if err != nil { -// return errors.Wrap(err, "read failed") -// } -// -// If additional control is required the errors.WithStack and errors.WithMessage -// functions destructure errors.Wrap into its component operations of annotating -// an error with a stack trace and an a message, respectively. -// -// Retrieving the cause of an error -// -// Using errors.Wrap constructs a stack of errors, adding context to the -// preceding error. Depending on the nature of the error it may be necessary -// to reverse the operation of errors.Wrap to retrieve the original error -// for inspection. Any error value which implements this interface -// -// type causer interface { -// Cause() error -// } -// -// can be inspected by errors.Cause. errors.Cause will recursively retrieve -// the topmost error which does not implement causer, which is assumed to be -// the original cause. For example: -// -// switch err := errors.Cause(err).(type) { -// case *MyError: -// // handle specifically -// default: -// // unknown error -// } -// -// causer interface is not exported by this package, but is considered a part -// of stable public API. -// -// Formatted printing of errors -// -// All error values returned from this package implement fmt.Formatter and can -// be formatted by the fmt package. The following verbs are supported -// -// %s print the error. If the error has a Cause it will be -// printed recursively -// %v see %s -// %+v extended format. Each Frame of the error's StackTrace will -// be printed in detail. -// -// Retrieving the stack trace of an error or wrapper -// -// New, Errorf, Wrap, and Wrapf record a stack trace at the point they are -// invoked. This information can be retrieved with the following interface. -// -// type stackTracer interface { -// StackTrace() errors.StackTrace -// } -// -// Where errors.StackTrace is defined as -// -// type StackTrace []Frame -// -// The Frame type represents a call site in the stack trace. Frame supports -// the fmt.Formatter interface that can be used for printing information about -// the stack trace of this error. For example: -// -// if err, ok := err.(stackTracer); ok { -// for _, f := range err.StackTrace() { -// fmt.Printf("%+s:%d", f) -// } -// } -// -// stackTracer interface is not exported by this package, but is considered a part -// of stable public API. -// -// See the documentation for Frame.Format for more details. -package errors - -import ( - "fmt" - "io" -) - -// New returns an error with the supplied message. -// New also records the stack trace at the point it was called. -func New(message string) error { - return &fundamental{ - msg: message, - stack: callers(), - } -} - -// Errorf formats according to a format specifier and returns the string -// as a value that satisfies error. -// Errorf also records the stack trace at the point it was called. -func Errorf(format string, args ...interface{}) error { - return &fundamental{ - msg: fmt.Sprintf(format, args...), - stack: callers(), - } -} - -// fundamental is an error that has a message and a stack, but no caller. -type fundamental struct { - msg string - *stack -} - -func (f *fundamental) Error() string { return f.msg } - -func (f *fundamental) Format(s fmt.State, verb rune) { - switch verb { - case 'v': - if s.Flag('+') { - io.WriteString(s, f.msg) - f.stack.Format(s, verb) - return - } - fallthrough - case 's': - io.WriteString(s, f.msg) - case 'q': - fmt.Fprintf(s, "%q", f.msg) - } -} - -// WithStack annotates err with a stack trace at the point WithStack was called. -// If err is nil, WithStack returns nil. -func WithStack(err error) error { - if err == nil { - return nil - } - return &withStack{ - err, - callers(), - } -} - -type withStack struct { - error - *stack -} - -func (w *withStack) Cause() error { return w.error } - -func (w *withStack) Format(s fmt.State, verb rune) { - switch verb { - case 'v': - if s.Flag('+') { - fmt.Fprintf(s, "%+v", w.Cause()) - w.stack.Format(s, verb) - return - } - fallthrough - case 's': - io.WriteString(s, w.Error()) - case 'q': - fmt.Fprintf(s, "%q", w.Error()) - } -} - -// Wrap returns an error annotating err with a stack trace -// at the point Wrap is called, and the supplied message. -// If err is nil, Wrap returns nil. -func Wrap(err error, message string) error { - if err == nil { - return nil - } - err = &withMessage{ - cause: err, - msg: message, - } - return &withStack{ - err, - callers(), - } -} - -// Wrapf returns an error annotating err with a stack trace -// at the point Wrapf is call, and the format specifier. -// If err is nil, Wrapf returns nil. -func Wrapf(err error, format string, args ...interface{}) error { - if err == nil { - return nil - } - err = &withMessage{ - cause: err, - msg: fmt.Sprintf(format, args...), - } - return &withStack{ - err, - callers(), - } -} - -// WithMessage annotates err with a new message. -// If err is nil, WithMessage returns nil. -func WithMessage(err error, message string) error { - if err == nil { - return nil - } - return &withMessage{ - cause: err, - msg: message, - } -} - -type withMessage struct { - cause error - msg string -} - -func (w *withMessage) Error() string { return w.msg + ": " + w.cause.Error() } -func (w *withMessage) Cause() error { return w.cause } - -func (w *withMessage) Format(s fmt.State, verb rune) { - switch verb { - case 'v': - if s.Flag('+') { - fmt.Fprintf(s, "%+v\n", w.Cause()) - io.WriteString(s, w.msg) - return - } - fallthrough - case 's', 'q': - io.WriteString(s, w.Error()) - } -} - -// Cause returns the underlying cause of the error, if possible. -// An error value has a cause if it implements the following -// interface: -// -// type causer interface { -// Cause() error -// } -// -// If the error does not implement Cause, the original error will -// be returned. If the error is nil, nil will be returned without further -// investigation. -func Cause(err error) error { - type causer interface { - Cause() error - } - - for err != nil { - cause, ok := err.(causer) - if !ok { - break - } - err = cause.Cause() - } - return err -} diff --git a/vendor/github.com/pkg/errors/stack.go b/vendor/github.com/pkg/errors/stack.go deleted file mode 100644 index 6b1f2891a..000000000 --- a/vendor/github.com/pkg/errors/stack.go +++ /dev/null @@ -1,178 +0,0 @@ -package errors - -import ( - "fmt" - "io" - "path" - "runtime" - "strings" -) - -// Frame represents a program counter inside a stack frame. -type Frame uintptr - -// pc returns the program counter for this frame; -// multiple frames may have the same PC value. -func (f Frame) pc() uintptr { return uintptr(f) - 1 } - -// file returns the full path to the file that contains the -// function for this Frame's pc. -func (f Frame) file() string { - fn := runtime.FuncForPC(f.pc()) - if fn == nil { - return "unknown" - } - file, _ := fn.FileLine(f.pc()) - return file -} - -// line returns the line number of source code of the -// function for this Frame's pc. -func (f Frame) line() int { - fn := runtime.FuncForPC(f.pc()) - if fn == nil { - return 0 - } - _, line := fn.FileLine(f.pc()) - return line -} - -// Format formats the frame according to the fmt.Formatter interface. -// -// %s source file -// %d source line -// %n function name -// %v equivalent to %s:%d -// -// Format accepts flags that alter the printing of some verbs, as follows: -// -// %+s path of source file relative to the compile time GOPATH -// %+v equivalent to %+s:%d -func (f Frame) Format(s fmt.State, verb rune) { - switch verb { - case 's': - switch { - case s.Flag('+'): - pc := f.pc() - fn := runtime.FuncForPC(pc) - if fn == nil { - io.WriteString(s, "unknown") - } else { - file, _ := fn.FileLine(pc) - fmt.Fprintf(s, "%s\n\t%s", fn.Name(), file) - } - default: - io.WriteString(s, path.Base(f.file())) - } - case 'd': - fmt.Fprintf(s, "%d", f.line()) - case 'n': - name := runtime.FuncForPC(f.pc()).Name() - io.WriteString(s, funcname(name)) - case 'v': - f.Format(s, 's') - io.WriteString(s, ":") - f.Format(s, 'd') - } -} - -// StackTrace is stack of Frames from innermost (newest) to outermost (oldest). -type StackTrace []Frame - -func (st StackTrace) Format(s fmt.State, verb rune) { - switch verb { - case 'v': - switch { - case s.Flag('+'): - for _, f := range st { - fmt.Fprintf(s, "\n%+v", f) - } - case s.Flag('#'): - fmt.Fprintf(s, "%#v", []Frame(st)) - default: - fmt.Fprintf(s, "%v", []Frame(st)) - } - case 's': - fmt.Fprintf(s, "%s", []Frame(st)) - } -} - -// stack represents a stack of program counters. -type stack []uintptr - -func (s *stack) Format(st fmt.State, verb rune) { - switch verb { - case 'v': - switch { - case st.Flag('+'): - for _, pc := range *s { - f := Frame(pc) - fmt.Fprintf(st, "\n%+v", f) - } - } - } -} - -func (s *stack) StackTrace() StackTrace { - f := make([]Frame, len(*s)) - for i := 0; i < len(f); i++ { - f[i] = Frame((*s)[i]) - } - return f -} - -func callers() *stack { - const depth = 32 - var pcs [depth]uintptr - n := runtime.Callers(3, pcs[:]) - var st stack = pcs[0:n] - return &st -} - -// funcname removes the path prefix component of a function's name reported by func.Name(). -func funcname(name string) string { - i := strings.LastIndex(name, "/") - name = name[i+1:] - i = strings.Index(name, ".") - return name[i+1:] -} - -func trimGOPATH(name, file string) string { - // Here we want to get the source file path relative to the compile time - // GOPATH. As of Go 1.6.x there is no direct way to know the compiled - // GOPATH at runtime, but we can infer the number of path segments in the - // GOPATH. We note that fn.Name() returns the function name qualified by - // the import path, which does not include the GOPATH. Thus we can trim - // segments from the beginning of the file path until the number of path - // separators remaining is one more than the number of path separators in - // the function name. For example, given: - // - // GOPATH /home/user - // file /home/user/src/pkg/sub/file.go - // fn.Name() pkg/sub.Type.Method - // - // We want to produce: - // - // pkg/sub/file.go - // - // From this we can easily see that fn.Name() has one less path separator - // than our desired output. We count separators from the end of the file - // path until it finds two more than in the function name and then move - // one character forward to preserve the initial path segment without a - // leading separator. - const sep = "/" - goal := strings.Count(name, sep) + 2 - i := len(file) - for n := 0; n < goal; n++ { - i = strings.LastIndex(file[:i], sep) - if i == -1 { - // not enough separators found, set i so that the slice expression - // below leaves file unmodified - i = -len(sep) - break - } - } - // get back to 0 or trim the leading separator - file = file[i+len(sep):] - return file -} diff --git a/vendor/vendor.json b/vendor/vendor.json index dc5388eb5..03dd7f897 100644 --- a/vendor/vendor.json +++ b/vendor/vendor.json @@ -173,12 +173,6 @@ "revision": "289cccf02c178dc782430d534e3c1f5b72af807f", "revisionTime": "2016-09-27T04:49:45Z" }, - { - "checksumSHA1": "ynJSWoF6v+3zMnh9R0QmmG6iGV8=", - "path": "github.com/pkg/errors", - "revision": "839d9e913e063e28dfd0e6c7b7512793e0a48be9", - "revisionTime": "2016-10-02T05:25:12Z" - }, { "path": "github.com/pkg/profile", "revision": "c78aac22bd43883fd2817833b982153dcac17b3b",