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Geth-Modification
Unverified Commit ee376f67 authored by Péter Szilágyi's avatar Péter Szilágyi Committed by GitHub
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Merge pull request #19399 from karalabe/nuke-monitor 

cmd/geth, internal, node, vendor: nuke geth monitor
parents 36f81118 29bc982d
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Showing with 11566 additions and 55180 deletions
cmd/geth/main.go
View file @ ee376f67
......@@ -201,8 +201,6 @@ func init() {
copydbCommand,
removedbCommand,
dumpCommand,
// See monitorcmd.go:
monitorCommand,
// See accountcmd.go:
accountCommand,
walletCommand,
......
cmd/geth/monitorcmd.go deleted 100644 → 0
View file @ 36f81118
This diff is collapsed.
internal/web3ext/web3ext.go
View file @ ee376f67
......@@ -234,7 +234,7 @@ web3._extend({
new web3._extend.Method({
name: 'testSignCliqueBlock',
call: 'debug_testSignCliqueBlock',
params: 2,
params: 2,
inputFormatters: [web3._extend.formatters.inputAddressFormatter, null],
}),
new web3._extend.Method({
......@@ -262,11 +262,6 @@ web3._extend({
name: 'chaindbCompact',
call: 'debug_chaindbCompact',
}),
new web3._extend.Method({
name: 'metrics',
call: 'debug_metrics',
params: 1
}),
new web3._extend.Method({
name: 'verbosity',
call: 'debug_verbosity',
......
node/api.go
View file @ ee376f67
......@@ -20,11 +20,9 @@ import (
"context"
"fmt"
"strings"
"time"
"github.com/ethereum/go-ethereum/common/hexutil"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/metrics"
"github.com/ethereum/go-ethereum/p2p"
"github.com/ethereum/go-ethereum/p2p/enode"
"github.com/ethereum/go-ethereum/rpc"
......@@ -297,151 +295,6 @@ func (api *PublicAdminAPI) Datadir() string {
return api.node.DataDir()
}
// PublicDebugAPI is the collection of debugging related API methods exposed over
// both secure and unsecure RPC channels.
type PublicDebugAPI struct {
node *Node // Node interfaced by this API
}
// NewPublicDebugAPI creates a new API definition for the public debug methods
// of the node itself.
func NewPublicDebugAPI(node *Node) *PublicDebugAPI {
return &PublicDebugAPI{node: node}
}
// Metrics retrieves all the known system metric collected by the node.
func (api *PublicDebugAPI) Metrics(raw bool) (map[string]interface{}, error) {
// Create a rate formatter
units := []string{"", "K", "M", "G", "T", "E", "P"}
round := func(value float64, prec int) string {
unit := 0
for value >= 1000 {
unit, value, prec = unit+1, value/1000, 2
}
return fmt.Sprintf(fmt.Sprintf("%%.%df%s", prec, units[unit]), value)
}
format := func(total float64, rate float64) string {
return fmt.Sprintf("%s (%s/s)", round(total, 0), round(rate, 2))
}
// Iterate over all the metrics, and just dump for now
counters := make(map[string]interface{})
metrics.DefaultRegistry.Each(func(name string, metric interface{}) {
// Create or retrieve the counter hierarchy for this metric
root, parts := counters, strings.Split(name, "/")
for _, part := range parts[:len(parts)-1] {
if _, ok := root[part]; !ok {
root[part] = make(map[string]interface{})
}
root = root[part].(map[string]interface{})
}
name = parts[len(parts)-1]
// Fill the counter with the metric details, formatting if requested
if raw {
switch metric := metric.(type) {
case metrics.Counter:
root[name] = map[string]interface{}{
"Overall": float64(metric.Count()),
}
case metrics.Meter:
root[name] = map[string]interface{}{
"AvgRate01Min": metric.Rate1(),
"AvgRate05Min": metric.Rate5(),
"AvgRate15Min": metric.Rate15(),
"MeanRate": metric.RateMean(),
"Overall": float64(metric.Count()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"AvgRate01Min": metric.Rate1(),
"AvgRate05Min": metric.Rate5(),
"AvgRate15Min": metric.Rate15(),
"MeanRate": metric.RateMean(),
"Overall": float64(metric.Count()),
"Percentiles": map[string]interface{}{
"5": metric.Percentile(0.05),
"20": metric.Percentile(0.2),
"50": metric.Percentile(0.5),
"80": metric.Percentile(0.8),
"95": metric.Percentile(0.95),
},
}
case metrics.ResettingTimer:
t := metric.Snapshot()
ps := t.Percentiles([]float64{5, 20, 50, 80, 95})
root[name] = map[string]interface{}{
"Measurements": len(t.Values()),
"Mean": t.Mean(),
"Percentiles": map[string]interface{}{
"5": ps[0],
"20": ps[1],
"50": ps[2],
"80": ps[3],
"95": ps[4],
},
}
default:
root[name] = "Unknown metric type"
}
} else {
switch metric := metric.(type) {
case metrics.Counter:
root[name] = map[string]interface{}{
"Overall": float64(metric.Count()),
}
case metrics.Meter:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Overall": format(float64(metric.Count()), metric.RateMean()),
}
case metrics.Timer:
root[name] = map[string]interface{}{
"Avg01Min": format(metric.Rate1()*60, metric.Rate1()),
"Avg05Min": format(metric.Rate5()*300, metric.Rate5()),
"Avg15Min": format(metric.Rate15()*900, metric.Rate15()),
"Overall": format(float64(metric.Count()), metric.RateMean()),
"Maximum": time.Duration(metric.Max()).String(),
"Minimum": time.Duration(metric.Min()).String(),
"Percentiles": map[string]interface{}{
"5": time.Duration(metric.Percentile(0.05)).String(),
"20": time.Duration(metric.Percentile(0.2)).String(),
"50": time.Duration(metric.Percentile(0.5)).String(),
"80": time.Duration(metric.Percentile(0.8)).String(),
"95": time.Duration(metric.Percentile(0.95)).String(),
},
}
case metrics.ResettingTimer:
t := metric.Snapshot()
ps := t.Percentiles([]float64{5, 20, 50, 80, 95})
root[name] = map[string]interface{}{
"Measurements": len(t.Values()),
"Mean": time.Duration(t.Mean()).String(),
"Percentiles": map[string]interface{}{
"5": time.Duration(ps[0]).String(),
"20": time.Duration(ps[1]).String(),
"50": time.Duration(ps[2]).String(),
"80": time.Duration(ps[3]).String(),
"95": time.Duration(ps[4]).String(),
},
}
default:
root[name] = "Unknown metric type"
}
}
})
return counters, nil
}
// PublicWeb3API offers helper utils
type PublicWeb3API struct {
stack *Node
......
node/node.go
View file @ ee376f67
......@@ -635,11 +635,6 @@ func (n *Node) apis() []rpc.API {
Namespace: "debug",
Version: "1.0",
Service: debug.Handler,
}, {
Namespace: "debug",
Version: "1.0",
Service: NewPublicDebugAPI(n),
Public: true,
}, {
Namespace: "web3",
Version: "1.0",
......
vendor/github.com/dgrijalva/jwt-go/LICENSE deleted 100644 → 0
View file @ 36f81118
Copyright (c) 2012 Dave Grijalva
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
vendor/github.com/dgrijalva/jwt-go/MIGRATION_GUIDE.md deleted 100644 → 0
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## Migration Guide from v2 -> v3
Version 3 adds several new, frequently requested features. To do so, it introduces a few breaking changes. We've worked to keep these as minimal as possible. This guide explains the breaking changes and how you can quickly update your code.
### `Token.Claims` is now an interface type
The most requested feature from the 2.0 verison of this library was the ability to provide a custom type to the JSON parser for claims. This was implemented by introducing a new interface, `Claims`, to replace `map[string]interface{}`. We also included two concrete implementations of `Claims`: `MapClaims` and `StandardClaims`.
`MapClaims` is an alias for `map[string]interface{}` with built in validation behavior. It is the default claims type when using `Parse`. The usage is unchanged except you must type cast the claims property.
The old example for parsing a token looked like this..
```go
if token, err := jwt.Parse(tokenString, keyLookupFunc); err == nil {
fmt.Printf("Token for user %v expires %v", token.Claims["user"], token.Claims["exp"])
}
```
is now directly mapped to...
```go
if token, err := jwt.Parse(tokenString, keyLookupFunc); err == nil {
claims := token.Claims.(jwt.MapClaims)
fmt.Printf("Token for user %v expires %v", claims["user"], claims["exp"])
}
```
`StandardClaims` is designed to be embedded in your custom type. You can supply a custom claims type with the new `ParseWithClaims` function. Here's an example of using a custom claims type.
```go
type MyCustomClaims struct {
User string
*StandardClaims
}
if token, err := jwt.ParseWithClaims(tokenString, &MyCustomClaims{}, keyLookupFunc); err == nil {
claims := token.Claims.(*MyCustomClaims)
fmt.Printf("Token for user %v expires %v", claims.User, claims.StandardClaims.ExpiresAt)
}
```
### `ParseFromRequest` has been moved
To keep this library focused on the tokens without becoming overburdened with complex request processing logic, `ParseFromRequest` and its new companion `ParseFromRequestWithClaims` have been moved to a subpackage, `request`. The method signatues have also been augmented to receive a new argument: `Extractor`.
`Extractors` do the work of picking the token string out of a request. The interface is simple and composable.
This simple parsing example:
```go
if token, err := jwt.ParseFromRequest(tokenString, req, keyLookupFunc); err == nil {
fmt.Printf("Token for user %v expires %v", token.Claims["user"], token.Claims["exp"])
}
```
is directly mapped to:
```go
if token, err := request.ParseFromRequest(req, request.OAuth2Extractor, keyLookupFunc); err == nil {
claims := token.Claims.(jwt.MapClaims)
fmt.Printf("Token for user %v expires %v", claims["user"], claims["exp"])
}
```
There are several concrete `Extractor` types provided for your convenience:
* `HeaderExtractor` will search a list of headers until one contains content.
* `ArgumentExtractor` will search a list of keys in request query and form arguments until one contains content.
* `MultiExtractor` will try a list of `Extractors` in order until one returns content.
* `AuthorizationHeaderExtractor` will look in the `Authorization` header for a `Bearer` token.
* `OAuth2Extractor` searches the places an OAuth2 token would be specified (per the spec): `Authorization` header and `access_token` argument
* `PostExtractionFilter` wraps an `Extractor`, allowing you to process the content before it's parsed. A simple example is stripping the `Bearer ` text from a header
### RSA signing methods no longer accept `[]byte` keys
Due to a [critical vulnerability](https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/), we've decided the convenience of accepting `[]byte` instead of `rsa.PublicKey` or `rsa.PrivateKey` isn't worth the risk of misuse.
To replace this behavior, we've added two helper methods: `ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error)` and `ParseRSAPublicKeyFromPEM(key []byte) (*rsa.PublicKey, error)`. These are just simple helpers for unpacking PEM encoded PKCS1 and PKCS8 keys. If your keys are encoded any other way, all you need to do is convert them to the `crypto/rsa` package's types.
```go
func keyLookupFunc(*Token) (interface{}, error) {
// Don't forget to validate the alg is what you expect:
if _, ok := token.Method.(*jwt.SigningMethodRSA); !ok {
return nil, fmt.Errorf("Unexpected signing method: %v", token.Header["alg"])
}
// Look up key
key, err := lookupPublicKey(token.Header["kid"])
if err != nil {
return nil, err
}
// Unpack key from PEM encoded PKCS8
return jwt.ParseRSAPublicKeyFromPEM(key)
}
```
vendor/github.com/dgrijalva/jwt-go/README.md deleted 100644 → 0
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A [go](http://www.golang.org) (or 'golang' for search engine friendliness) implementation of [JSON Web Tokens](http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html)
[![Build Status](https://travis-ci.org/dgrijalva/jwt-go.svg?branch=master)](https://travis-ci.org/dgrijalva/jwt-go)
**BREAKING CHANGES:*** Version 3.0.0 is here. It includes _a lot_ of changes including a few that break the API. We've tried to break as few things as possible, so there should just be a few type signature changes. A full list of breaking changes is available in `VERSION_HISTORY.md`. See `MIGRATION_GUIDE.md` for more information on updating your code.
**NOTICE:** A vulnerability in JWT was [recently published](https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/). As this library doesn't force users to validate the `alg` is what they expected, it's possible your usage is effected. There will be an update soon to remedy this, and it will likey require backwards-incompatible changes to the API. In the short term, please make sure your implementation verifies the `alg` is what you expect.
## What the heck is a JWT?
JWT.io has [a great introduction](https://jwt.io/introduction) to JSON Web Tokens.
In short, it's a signed JSON object that does something useful (for example, authentication). It's commonly used for `Bearer` tokens in Oauth 2. A token is made of three parts, separated by `.`'s. The first two parts are JSON objects, that have been [base64url](http://tools.ietf.org/html/rfc4648) encoded. The last part is the signature, encoded the same way.
The first part is called the header. It contains the necessary information for verifying the last part, the signature. For example, which encryption method was used for signing and what key was used.
The part in the middle is the interesting bit. It's called the Claims and contains the actual stuff you care about. Refer to [the RFC](http://self-issued.info/docs/draft-jones-json-web-token.html) for information about reserved keys and the proper way to add your own.
## What's in the box?
This library supports the parsing and verification as well as the generation and signing of JWTs. Current supported signing algorithms are HMAC SHA, RSA, RSA-PSS, and ECDSA, though hooks are present for adding your own.
## Examples
See [the project documentation](https://godoc.org/github.com/dgrijalva/jwt-go) for examples of usage:
* [Simple example of parsing and validating a token](https://godoc.org/github.com/dgrijalva/jwt-go#example-Parse--Hmac)
* [Simple example of building and signing a token](https://godoc.org/github.com/dgrijalva/jwt-go#example-New--Hmac)
* [Directory of Examples](https://godoc.org/github.com/dgrijalva/jwt-go#pkg-examples)
## Extensions
This library publishes all the necessary components for adding your own signing methods. Simply implement the `SigningMethod` interface and register a factory method using `RegisterSigningMethod`.
Here's an example of an extension that integrates with the Google App Engine signing tools: https://github.com/someone1/gcp-jwt-go
## Compliance
This library was last reviewed to comply with [RTF 7519](http://www.rfc-editor.org/info/rfc7519) dated May 2015 with a few notable differences:
* In order to protect against accidental use of [Unsecured JWTs](http://self-issued.info/docs/draft-ietf-oauth-json-web-token.html#UnsecuredJWT), tokens using `alg=none` will only be accepted if the constant `jwt.UnsafeAllowNoneSignatureType` is provided as the key.
## Project Status & Versioning
This library is considered production ready. Feedback and feature requests are appreciated. The API should be considered stable. There should be very few backwards-incompatible changes outside of major version updates (and only with good reason).
This project uses [Semantic Versioning 2.0.0](http://semver.org). Accepted pull requests will land on `master`. Periodically, versions will be tagged from `master`. You can find all the releases on [the project releases page](https://github.com/dgrijalva/jwt-go/releases).
While we try to make it obvious when we make breaking changes, there isn't a great mechanism for pushing announcements out to users. You may want to use this alternative package include: `gopkg.in/dgrijalva/jwt-go.v2`. It will do the right thing WRT semantic versioning.
## Usage Tips
### Signing vs Encryption
A token is simply a JSON object that is signed by its author. this tells you exactly two things about the data:
* The author of the token was in the possession of the signing secret
* The data has not been modified since it was signed
It's important to know that JWT does not provide encryption, which means anyone who has access to the token can read its contents. If you need to protect (encrypt) the data, there is a companion spec, `JWE`, that provides this functionality. JWE is currently outside the scope of this library.
### Choosing a Signing Method
There are several signing methods available, and you should probably take the time to learn about the various options before choosing one. The principal design decision is most likely going to be symmetric vs asymmetric.
Symmetric signing methods, such as HSA, use only a single secret. This is probably the simplest signing method to use since any `[]byte` can be used as a valid secret. They are also slightly computationally faster to use, though this rarely is enough to matter. Symmetric signing methods work the best when both producers and consumers of tokens are trusted, or even the same system. Since the same secret is used to both sign and validate tokens, you can't easily distribute the key for validation.
Asymmetric signing methods, such as RSA, use different keys for signing and verifying tokens. This makes it possible to produce tokens with a private key, and allow any consumer to access the public key for verification.
### JWT and OAuth
It's worth mentioning that OAuth and JWT are not the same thing. A JWT token is simply a signed JSON object. It can be used anywhere such a thing is useful. There is some confusion, though, as JWT is the most common type of bearer token used in OAuth2 authentication.
Without going too far down the rabbit hole, here's a description of the interaction of these technologies:
* OAuth is a protocol for allowing an identity provider to be separate from the service a user is logging in to. For example, whenever you use Facebook to log into a different service (Yelp, Spotify, etc), you are using OAuth.
* OAuth defines several options for passing around authentication data. One popular method is called a "bearer token". A bearer token is simply a string that _should_ only be held by an authenticated user. Thus, simply presenting this token proves your identity. You can probably derive from here why a JWT might make a good bearer token.
* Because bearer tokens are used for authentication, it's important they're kept secret. This is why transactions that use bearer tokens typically happen over SSL.
## More
Documentation can be found [on godoc.org](http://godoc.org/github.com/dgrijalva/jwt-go).
The command line utility included in this project (cmd/jwt) provides a straightforward example of token creation and parsing as well as a useful tool for debugging your own integration. You'll also find several implementation examples in to documentation.
vendor/github.com/dgrijalva/jwt-go/VERSION_HISTORY.md deleted 100644 → 0
View file @ 36f81118
## `jwt-go` Version History
#### 3.0.0
* **Compatibility Breaking Changes**: See MIGRATION_GUIDE.md for tips on updating your code
* Dropped support for `[]byte` keys when using RSA signing methods. This convenience feature could contribute to security vulnerabilities involving mismatched key types with signing methods.
* `ParseFromRequest` has been moved to `request` subpackage and usage has changed
* The `Claims` property on `Token` is now type `Claims` instead of `map[string]interface{}`. The default value is type `MapClaims`, which is an alias to `map[string]interface{}`. This makes it possible to use a custom type when decoding claims.
* Other Additions and Changes
* Added `Claims` interface type to allow users to decode the claims into a custom type
* Added `ParseWithClaims`, which takes a third argument of type `Claims`. Use this function instead of `Parse` if you have a custom type you'd like to decode into.
* Dramatically improved the functionality and flexibility of `ParseFromRequest`, which is now in the `request` subpackage
* Added `ParseFromRequestWithClaims` which is the `FromRequest` equivalent of `ParseWithClaims`
* Added new interface type `Extractor`, which is used for extracting JWT strings from http requests. Used with `ParseFromRequest` and `ParseFromRequestWithClaims`.
* Added several new, more specific, validation errors to error type bitmask
* Moved examples from README to executable example files
* Signing method registry is now thread safe
* Added new property to `ValidationError`, which contains the raw error returned by calls made by parse/verify (such as those returned by keyfunc or json parser)
#### 2.7.0
This will likely be the last backwards compatible release before 3.0.0, excluding essential bug fixes.
* Added new option `-show` to the `jwt` command that will just output the decoded token without verifying
* Error text for expired tokens includes how long it's been expired
* Fixed incorrect error returned from `ParseRSAPublicKeyFromPEM`
* Documentation updates
#### 2.6.0
* Exposed inner error within ValidationError
* Fixed validation errors when using UseJSONNumber flag
* Added several unit tests
#### 2.5.0
* Added support for signing method none. You shouldn't use this. The API tries to make this clear.
* Updated/fixed some documentation
* Added more helpful error message when trying to parse tokens that begin with `BEARER `
#### 2.4.0
* Added new type, Parser, to allow for configuration of various parsing parameters
* You can now specify a list of valid signing methods. Anything outside this set will be rejected.
* You can now opt to use the `json.Number` type instead of `float64` when parsing token JSON
* Added support for [Travis CI](https://travis-ci.org/dgrijalva/jwt-go)
* Fixed some bugs with ECDSA parsing
#### 2.3.0
* Added support for ECDSA signing methods
* Added support for RSA PSS signing methods (requires go v1.4)
#### 2.2.0
* Gracefully handle a `nil` `Keyfunc` being passed to `Parse`. Result will now be the parsed token and an error, instead of a panic.
#### 2.1.0
Backwards compatible API change that was missed in 2.0.0.
* The `SignedString` method on `Token` now takes `interface{}` instead of `[]byte`
#### 2.0.0
There were two major reasons for breaking backwards compatibility with this update. The first was a refactor required to expand the width of the RSA and HMAC-SHA signing implementations. There will likely be no required code changes to support this change.
The second update, while unfortunately requiring a small change in integration, is required to open up this library to other signing methods. Not all keys used for all signing methods have a single standard on-disk representation. Requiring `[]byte` as the type for all keys proved too limiting. Additionally, this implementation allows for pre-parsed tokens to be reused, which might matter in an application that parses a high volume of tokens with a small set of keys. Backwards compatibilty has been maintained for passing `[]byte` to the RSA signing methods, but they will also accept `*rsa.PublicKey` and `*rsa.PrivateKey`.
It is likely the only integration change required here will be to change `func(t *jwt.Token) ([]byte, error)` to `func(t *jwt.Token) (interface{}, error)` when calling `Parse`.
* **Compatibility Breaking Changes**
* `SigningMethodHS256` is now `*SigningMethodHMAC` instead of `type struct`
* `SigningMethodRS256` is now `*SigningMethodRSA` instead of `type struct`
* `KeyFunc` now returns `interface{}` instead of `[]byte`
* `SigningMethod.Sign` now takes `interface{}` instead of `[]byte` for the key
* `SigningMethod.Verify` now takes `interface{}` instead of `[]byte` for the key
* Renamed type `SigningMethodHS256` to `SigningMethodHMAC`. Specific sizes are now just instances of this type.
* Added public package global `SigningMethodHS256`
* Added public package global `SigningMethodHS384`
* Added public package global `SigningMethodHS512`
* Renamed type `SigningMethodRS256` to `SigningMethodRSA`. Specific sizes are now just instances of this type.
* Added public package global `SigningMethodRS256`
* Added public package global `SigningMethodRS384`
* Added public package global `SigningMethodRS512`
* Moved sample private key for HMAC tests from an inline value to a file on disk. Value is unchanged.
* Refactored the RSA implementation to be easier to read
* Exposed helper methods `ParseRSAPrivateKeyFromPEM` and `ParseRSAPublicKeyFromPEM`
#### 1.0.2
* Fixed bug in parsing public keys from certificates
* Added more tests around the parsing of keys for RS256
* Code refactoring in RS256 implementation. No functional changes
#### 1.0.1
* Fixed panic if RS256 signing method was passed an invalid key
#### 1.0.0
* First versioned release
* API stabilized
* Supports creating, signing, parsing, and validating JWT tokens
* Supports RS256 and HS256 signing methods
\ No newline at end of file
vendor/github.com/dgrijalva/jwt-go/claims.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto/subtle"
"fmt"
"time"
)
// For a type to be a Claims object, it must just have a Valid method that determines
// if the token is invalid for any supported reason
type Claims interface {
Valid() error
}
// Structured version of Claims Section, as referenced at
// https://tools.ietf.org/html/rfc7519#section-4.1
// See examples for how to use this with your own claim types
type StandardClaims struct {
Audience string `json:"aud,omitempty"`
ExpiresAt int64 `json:"exp,omitempty"`
Id string `json:"jti,omitempty"`
IssuedAt int64 `json:"iat,omitempty"`
Issuer string `json:"iss,omitempty"`
NotBefore int64 `json:"nbf,omitempty"`
Subject string `json:"sub,omitempty"`
}
// Validates time based claims "exp, iat, nbf".
// There is no accounting for clock skew.
// As well, if any of the above claims are not in the token, it will still
// be considered a valid claim.
func (c StandardClaims) Valid() error {
vErr := new(ValidationError)
now := TimeFunc().Unix()
// The claims below are optional, by default, so if they are set to the
// default value in Go, let's not fail the verification for them.
if c.VerifyExpiresAt(now, false) == false {
delta := time.Unix(now, 0).Sub(time.Unix(c.ExpiresAt, 0))
vErr.Inner = fmt.Errorf("token is expired by %v", delta)
vErr.Errors |= ValidationErrorExpired
}
if c.VerifyIssuedAt(now, false) == false {
vErr.Inner = fmt.Errorf("Token used before issued")
vErr.Errors |= ValidationErrorIssuedAt
}
if c.VerifyNotBefore(now, false) == false {
vErr.Inner = fmt.Errorf("token is not valid yet")
vErr.Errors |= ValidationErrorNotValidYet
}
if vErr.valid() {
return nil
}
return vErr
}
// Compares the aud claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (c *StandardClaims) VerifyAudience(cmp string, req bool) bool {
return verifyAud(c.Audience, cmp, req)
}
// Compares the exp claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (c *StandardClaims) VerifyExpiresAt(cmp int64, req bool) bool {
return verifyExp(c.ExpiresAt, cmp, req)
}
// Compares the iat claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (c *StandardClaims) VerifyIssuedAt(cmp int64, req bool) bool {
return verifyIat(c.IssuedAt, cmp, req)
}
// Compares the iss claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (c *StandardClaims) VerifyIssuer(cmp string, req bool) bool {
return verifyIss(c.Issuer, cmp, req)
}
// Compares the nbf claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (c *StandardClaims) VerifyNotBefore(cmp int64, req bool) bool {
return verifyNbf(c.NotBefore, cmp, req)
}
// ----- helpers
func verifyAud(aud string, cmp string, required bool) bool {
if aud == "" {
return !required
}
if subtle.ConstantTimeCompare([]byte(aud), []byte(cmp)) != 0 {
return true
} else {
return false
}
}
func verifyExp(exp int64, now int64, required bool) bool {
if exp == 0 {
return !required
}
return now <= exp
}
func verifyIat(iat int64, now int64, required bool) bool {
if iat == 0 {
return !required
}
return now >= iat
}
func verifyIss(iss string, cmp string, required bool) bool {
if iss == "" {
return !required
}
if subtle.ConstantTimeCompare([]byte(iss), []byte(cmp)) != 0 {
return true
} else {
return false
}
}
func verifyNbf(nbf int64, now int64, required bool) bool {
if nbf == 0 {
return !required
}
return now >= nbf
}
vendor/github.com/dgrijalva/jwt-go/doc.go deleted 100644 → 0
View file @ 36f81118
// Package jwt is a Go implementation of JSON Web Tokens: http://self-issued.info/docs/draft-jones-json-web-token.html
//
// See README.md for more info.
package jwt
vendor/github.com/dgrijalva/jwt-go/ecdsa.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto"
"crypto/ecdsa"
"crypto/rand"
"errors"
"math/big"
)
var (
// Sadly this is missing from crypto/ecdsa compared to crypto/rsa
ErrECDSAVerification = errors.New("crypto/ecdsa: verification error")
)
// Implements the ECDSA family of signing methods signing methods
type SigningMethodECDSA struct {
Name string
Hash crypto.Hash
KeySize int
CurveBits int
}
// Specific instances for EC256 and company
var (
SigningMethodES256 *SigningMethodECDSA
SigningMethodES384 *SigningMethodECDSA
SigningMethodES512 *SigningMethodECDSA
)
func init() {
// ES256
SigningMethodES256 = &SigningMethodECDSA{"ES256", crypto.SHA256, 32, 256}
RegisterSigningMethod(SigningMethodES256.Alg(), func() SigningMethod {
return SigningMethodES256
})
// ES384
SigningMethodES384 = &SigningMethodECDSA{"ES384", crypto.SHA384, 48, 384}
RegisterSigningMethod(SigningMethodES384.Alg(), func() SigningMethod {
return SigningMethodES384
})
// ES512
SigningMethodES512 = &SigningMethodECDSA{"ES512", crypto.SHA512, 66, 521}
RegisterSigningMethod(SigningMethodES512.Alg(), func() SigningMethod {
return SigningMethodES512
})
}
func (m *SigningMethodECDSA) Alg() string {
return m.Name
}
// Implements the Verify method from SigningMethod
// For this verify method, key must be an ecdsa.PublicKey struct
func (m *SigningMethodECDSA) Verify(signingString, signature string, key interface{}) error {
var err error
// Decode the signature
var sig []byte
if sig, err = DecodeSegment(signature); err != nil {
return err
}
// Get the key
var ecdsaKey *ecdsa.PublicKey
switch k := key.(type) {
case *ecdsa.PublicKey:
ecdsaKey = k
default:
return ErrInvalidKeyType
}
if len(sig) != 2*m.KeySize {
return ErrECDSAVerification
}
r := big.NewInt(0).SetBytes(sig[:m.KeySize])
s := big.NewInt(0).SetBytes(sig[m.KeySize:])
// Create hasher
if !m.Hash.Available() {
return ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
// Verify the signature
if verifystatus := ecdsa.Verify(ecdsaKey, hasher.Sum(nil), r, s); verifystatus == true {
return nil
} else {
return ErrECDSAVerification
}
}
// Implements the Sign method from SigningMethod
// For this signing method, key must be an ecdsa.PrivateKey struct
func (m *SigningMethodECDSA) Sign(signingString string, key interface{}) (string, error) {
// Get the key
var ecdsaKey *ecdsa.PrivateKey
switch k := key.(type) {
case *ecdsa.PrivateKey:
ecdsaKey = k
default:
return "", ErrInvalidKeyType
}
// Create the hasher
if !m.Hash.Available() {
return "", ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
// Sign the string and return r, s
if r, s, err := ecdsa.Sign(rand.Reader, ecdsaKey, hasher.Sum(nil)); err == nil {
curveBits := ecdsaKey.Curve.Params().BitSize
if m.CurveBits != curveBits {
return "", ErrInvalidKey
}
keyBytes := curveBits / 8
if curveBits%8 > 0 {
keyBytes += 1
}
// We serialize the outpus (r and s) into big-endian byte arrays and pad
// them with zeros on the left to make sure the sizes work out. Both arrays
// must be keyBytes long, and the output must be 2*keyBytes long.
rBytes := r.Bytes()
rBytesPadded := make([]byte, keyBytes)
copy(rBytesPadded[keyBytes-len(rBytes):], rBytes)
sBytes := s.Bytes()
sBytesPadded := make([]byte, keyBytes)
copy(sBytesPadded[keyBytes-len(sBytes):], sBytes)
out := append(rBytesPadded, sBytesPadded...)
return EncodeSegment(out), nil
} else {
return "", err
}
}
vendor/github.com/dgrijalva/jwt-go/ecdsa_utils.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto/ecdsa"
"crypto/x509"
"encoding/pem"
"errors"
)
var (
ErrNotECPublicKey = errors.New("Key is not a valid ECDSA public key")
ErrNotECPrivateKey = errors.New("Key is not a valid ECDSA private key")
)
// Parse PEM encoded Elliptic Curve Private Key Structure
func ParseECPrivateKeyFromPEM(key []byte) (*ecdsa.PrivateKey, error) {
var err error
// Parse PEM block
var block *pem.Block
if block, _ = pem.Decode(key); block == nil {
return nil, ErrKeyMustBePEMEncoded
}
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParseECPrivateKey(block.Bytes); err != nil {
return nil, err
}
var pkey *ecdsa.PrivateKey
var ok bool
if pkey, ok = parsedKey.(*ecdsa.PrivateKey); !ok {
return nil, ErrNotECPrivateKey
}
return pkey, nil
}
// Parse PEM encoded PKCS1 or PKCS8 public key
func ParseECPublicKeyFromPEM(key []byte) (*ecdsa.PublicKey, error) {
var err error
// Parse PEM block
var block *pem.Block
if block, _ = pem.Decode(key); block == nil {
return nil, ErrKeyMustBePEMEncoded
}
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParsePKIXPublicKey(block.Bytes); err != nil {
if cert, err := x509.ParseCertificate(block.Bytes); err == nil {
parsedKey = cert.PublicKey
} else {
return nil, err
}
}
var pkey *ecdsa.PublicKey
var ok bool
if pkey, ok = parsedKey.(*ecdsa.PublicKey); !ok {
return nil, ErrNotECPublicKey
}
return pkey, nil
}
vendor/github.com/dgrijalva/jwt-go/errors.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"errors"
)
// Error constants
var (
ErrInvalidKey = errors.New("key is invalid")
ErrInvalidKeyType = errors.New("key is of invalid type")
ErrHashUnavailable = errors.New("the requested hash function is unavailable")
)
// The errors that might occur when parsing and validating a token
const (
ValidationErrorMalformed uint32 = 1 << iota // Token is malformed
ValidationErrorUnverifiable // Token could not be verified because of signing problems
ValidationErrorSignatureInvalid // Signature validation failed
// Standard Claim validation errors
ValidationErrorAudience // AUD validation failed
ValidationErrorExpired // EXP validation failed
ValidationErrorIssuedAt // IAT validation failed
ValidationErrorIssuer // ISS validation failed
ValidationErrorNotValidYet // NBF validation failed
ValidationErrorId // JTI validation failed
ValidationErrorClaimsInvalid // Generic claims validation error
)
// Helper for constructing a ValidationError with a string error message
func NewValidationError(errorText string, errorFlags uint32) *ValidationError {
return &ValidationError{
text: errorText,
Errors: errorFlags,
}
}
// The error from Parse if token is not valid
type ValidationError struct {
Inner error // stores the error returned by external dependencies, i.e.: KeyFunc
Errors uint32 // bitfield. see ValidationError... constants
text string // errors that do not have a valid error just have text
}
// Validation error is an error type
func (e ValidationError) Error() string {
if e.Inner != nil {
return e.Inner.Error()
} else if e.text != "" {
return e.text
} else {
return "token is invalid"
}
}
// No errors
func (e *ValidationError) valid() bool {
return e.Errors == 0
}
vendor/github.com/dgrijalva/jwt-go/hmac.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto"
"crypto/hmac"
"errors"
)
// Implements the HMAC-SHA family of signing methods signing methods
type SigningMethodHMAC struct {
Name string
Hash crypto.Hash
}
// Specific instances for HS256 and company
var (
SigningMethodHS256 *SigningMethodHMAC
SigningMethodHS384 *SigningMethodHMAC
SigningMethodHS512 *SigningMethodHMAC
ErrSignatureInvalid = errors.New("signature is invalid")
)
func init() {
// HS256
SigningMethodHS256 = &SigningMethodHMAC{"HS256", crypto.SHA256}
RegisterSigningMethod(SigningMethodHS256.Alg(), func() SigningMethod {
return SigningMethodHS256
})
// HS384
SigningMethodHS384 = &SigningMethodHMAC{"HS384", crypto.SHA384}
RegisterSigningMethod(SigningMethodHS384.Alg(), func() SigningMethod {
return SigningMethodHS384
})
// HS512
SigningMethodHS512 = &SigningMethodHMAC{"HS512", crypto.SHA512}
RegisterSigningMethod(SigningMethodHS512.Alg(), func() SigningMethod {
return SigningMethodHS512
})
}
func (m *SigningMethodHMAC) Alg() string {
return m.Name
}
// Verify the signature of HSXXX tokens. Returns nil if the signature is valid.
func (m *SigningMethodHMAC) Verify(signingString, signature string, key interface{}) error {
// Verify the key is the right type
keyBytes, ok := key.([]byte)
if !ok {
return ErrInvalidKeyType
}
// Decode signature, for comparison
sig, err := DecodeSegment(signature)
if err != nil {
return err
}
// Can we use the specified hashing method?
if !m.Hash.Available() {
return ErrHashUnavailable
}
// This signing method is symmetric, so we validate the signature
// by reproducing the signature from the signing string and key, then
// comparing that against the provided signature.
hasher := hmac.New(m.Hash.New, keyBytes)
hasher.Write([]byte(signingString))
if !hmac.Equal(sig, hasher.Sum(nil)) {
return ErrSignatureInvalid
}
// No validation errors. Signature is good.
return nil
}
// Implements the Sign method from SigningMethod for this signing method.
// Key must be []byte
func (m *SigningMethodHMAC) Sign(signingString string, key interface{}) (string, error) {
if keyBytes, ok := key.([]byte); ok {
if !m.Hash.Available() {
return "", ErrHashUnavailable
}
hasher := hmac.New(m.Hash.New, keyBytes)
hasher.Write([]byte(signingString))
return EncodeSegment(hasher.Sum(nil)), nil
}
return "", ErrInvalidKey
}
vendor/github.com/dgrijalva/jwt-go/map_claims.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"encoding/json"
"errors"
// "fmt"
)
// Claims type that uses the map[string]interface{} for JSON decoding
// This is the default claims type if you don't supply one
type MapClaims map[string]interface{}
// Compares the aud claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyAudience(cmp string, req bool) bool {
aud, _ := m["aud"].(string)
return verifyAud(aud, cmp, req)
}
// Compares the exp claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyExpiresAt(cmp int64, req bool) bool {
switch exp := m["exp"].(type) {
case float64:
return verifyExp(int64(exp), cmp, req)
case json.Number:
v, _ := exp.Int64()
return verifyExp(v, cmp, req)
}
return req == false
}
// Compares the iat claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyIssuedAt(cmp int64, req bool) bool {
switch iat := m["iat"].(type) {
case float64:
return verifyIat(int64(iat), cmp, req)
case json.Number:
v, _ := iat.Int64()
return verifyIat(v, cmp, req)
}
return req == false
}
// Compares the iss claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyIssuer(cmp string, req bool) bool {
iss, _ := m["iss"].(string)
return verifyIss(iss, cmp, req)
}
// Compares the nbf claim against cmp.
// If required is false, this method will return true if the value matches or is unset
func (m MapClaims) VerifyNotBefore(cmp int64, req bool) bool {
switch nbf := m["nbf"].(type) {
case float64:
return verifyNbf(int64(nbf), cmp, req)
case json.Number:
v, _ := nbf.Int64()
return verifyNbf(v, cmp, req)
}
return req == false
}
// Validates time based claims "exp, iat, nbf".
// There is no accounting for clock skew.
// As well, if any of the above claims are not in the token, it will still
// be considered a valid claim.
func (m MapClaims) Valid() error {
vErr := new(ValidationError)
now := TimeFunc().Unix()
if m.VerifyExpiresAt(now, false) == false {
vErr.Inner = errors.New("Token is expired")
vErr.Errors |= ValidationErrorExpired
}
if m.VerifyIssuedAt(now, false) == false {
vErr.Inner = errors.New("Token used before issued")
vErr.Errors |= ValidationErrorIssuedAt
}
if m.VerifyNotBefore(now, false) == false {
vErr.Inner = errors.New("Token is not valid yet")
vErr.Errors |= ValidationErrorNotValidYet
}
if vErr.valid() {
return nil
}
return vErr
}
vendor/github.com/dgrijalva/jwt-go/none.go deleted 100644 → 0
View file @ 36f81118
package jwt
// Implements the none signing method. This is required by the spec
// but you probably should never use it.
var SigningMethodNone *signingMethodNone
const UnsafeAllowNoneSignatureType unsafeNoneMagicConstant = "none signing method allowed"
var NoneSignatureTypeDisallowedError error
type signingMethodNone struct{}
type unsafeNoneMagicConstant string
func init() {
SigningMethodNone = &signingMethodNone{}
NoneSignatureTypeDisallowedError = NewValidationError("'none' signature type is not allowed", ValidationErrorSignatureInvalid)
RegisterSigningMethod(SigningMethodNone.Alg(), func() SigningMethod {
return SigningMethodNone
})
}
func (m *signingMethodNone) Alg() string {
return "none"
}
// Only allow 'none' alg type if UnsafeAllowNoneSignatureType is specified as the key
func (m *signingMethodNone) Verify(signingString, signature string, key interface{}) (err error) {
// Key must be UnsafeAllowNoneSignatureType to prevent accidentally
// accepting 'none' signing method
if _, ok := key.(unsafeNoneMagicConstant); !ok {
return NoneSignatureTypeDisallowedError
}
// If signing method is none, signature must be an empty string
if signature != "" {
return NewValidationError(
"'none' signing method with non-empty signature",
ValidationErrorSignatureInvalid,
)
}
// Accept 'none' signing method.
return nil
}
// Only allow 'none' signing if UnsafeAllowNoneSignatureType is specified as the key
func (m *signingMethodNone) Sign(signingString string, key interface{}) (string, error) {
if _, ok := key.(unsafeNoneMagicConstant); ok {
return "", nil
}
return "", NoneSignatureTypeDisallowedError
}
vendor/github.com/dgrijalva/jwt-go/parser.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"bytes"
"encoding/json"
"fmt"
"strings"
)
type Parser struct {
ValidMethods []string // If populated, only these methods will be considered valid
UseJSONNumber bool // Use JSON Number format in JSON decoder
SkipClaimsValidation bool // Skip claims validation during token parsing
}
// Parse, validate, and return a token.
// keyFunc will receive the parsed token and should return the key for validating.
// If everything is kosher, err will be nil
func (p *Parser) Parse(tokenString string, keyFunc Keyfunc) (*Token, error) {
return p.ParseWithClaims(tokenString, MapClaims{}, keyFunc)
}
func (p *Parser) ParseWithClaims(tokenString string, claims Claims, keyFunc Keyfunc) (*Token, error) {
parts := strings.Split(tokenString, ".")
if len(parts) != 3 {
return nil, NewValidationError("token contains an invalid number of segments", ValidationErrorMalformed)
}
var err error
token := &Token{Raw: tokenString}
// parse Header
var headerBytes []byte
if headerBytes, err = DecodeSegment(parts[0]); err != nil {
if strings.HasPrefix(strings.ToLower(tokenString), "bearer ") {
return token, NewValidationError("tokenstring should not contain 'bearer '", ValidationErrorMalformed)
}
return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
}
if err = json.Unmarshal(headerBytes, &token.Header); err != nil {
return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
}
// parse Claims
var claimBytes []byte
token.Claims = claims
if claimBytes, err = DecodeSegment(parts[1]); err != nil {
return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
}
dec := json.NewDecoder(bytes.NewBuffer(claimBytes))
if p.UseJSONNumber {
dec.UseNumber()
}
// JSON Decode. Special case for map type to avoid weird pointer behavior
if c, ok := token.Claims.(MapClaims); ok {
err = dec.Decode(&c)
} else {
err = dec.Decode(&claims)
}
// Handle decode error
if err != nil {
return token, &ValidationError{Inner: err, Errors: ValidationErrorMalformed}
}
// Lookup signature method
if method, ok := token.Header["alg"].(string); ok {
if token.Method = GetSigningMethod(method); token.Method == nil {
return token, NewValidationError("signing method (alg) is unavailable.", ValidationErrorUnverifiable)
}
} else {
return token, NewValidationError("signing method (alg) is unspecified.", ValidationErrorUnverifiable)
}
// Verify signing method is in the required set
if p.ValidMethods != nil {
var signingMethodValid = false
var alg = token.Method.Alg()
for _, m := range p.ValidMethods {
if m == alg {
signingMethodValid = true
break
}
}
if !signingMethodValid {
// signing method is not in the listed set
return token, NewValidationError(fmt.Sprintf("signing method %v is invalid", alg), ValidationErrorSignatureInvalid)
}
}
// Lookup key
var key interface{}
if keyFunc == nil {
// keyFunc was not provided. short circuiting validation
return token, NewValidationError("no Keyfunc was provided.", ValidationErrorUnverifiable)
}
if key, err = keyFunc(token); err != nil {
// keyFunc returned an error
return token, &ValidationError{Inner: err, Errors: ValidationErrorUnverifiable}
}
vErr := &ValidationError{}
// Validate Claims
if !p.SkipClaimsValidation {
if err := token.Claims.Valid(); err != nil {
// If the Claims Valid returned an error, check if it is a validation error,
// If it was another error type, create a ValidationError with a generic ClaimsInvalid flag set
if e, ok := err.(*ValidationError); !ok {
vErr = &ValidationError{Inner: err, Errors: ValidationErrorClaimsInvalid}
} else {
vErr = e
}
}
}
// Perform validation
token.Signature = parts[2]
if err = token.Method.Verify(strings.Join(parts[0:2], "."), token.Signature, key); err != nil {
vErr.Inner = err
vErr.Errors |= ValidationErrorSignatureInvalid
}
if vErr.valid() {
token.Valid = true
return token, nil
}
return token, vErr
}
vendor/github.com/dgrijalva/jwt-go/rsa.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto"
"crypto/rand"
"crypto/rsa"
)
// Implements the RSA family of signing methods signing methods
type SigningMethodRSA struct {
Name string
Hash crypto.Hash
}
// Specific instances for RS256 and company
var (
SigningMethodRS256 *SigningMethodRSA
SigningMethodRS384 *SigningMethodRSA
SigningMethodRS512 *SigningMethodRSA
)
func init() {
// RS256
SigningMethodRS256 = &SigningMethodRSA{"RS256", crypto.SHA256}
RegisterSigningMethod(SigningMethodRS256.Alg(), func() SigningMethod {
return SigningMethodRS256
})
// RS384
SigningMethodRS384 = &SigningMethodRSA{"RS384", crypto.SHA384}
RegisterSigningMethod(SigningMethodRS384.Alg(), func() SigningMethod {
return SigningMethodRS384
})
// RS512
SigningMethodRS512 = &SigningMethodRSA{"RS512", crypto.SHA512}
RegisterSigningMethod(SigningMethodRS512.Alg(), func() SigningMethod {
return SigningMethodRS512
})
}
func (m *SigningMethodRSA) Alg() string {
return m.Name
}
// Implements the Verify method from SigningMethod
// For this signing method, must be an rsa.PublicKey structure.
func (m *SigningMethodRSA) Verify(signingString, signature string, key interface{}) error {
var err error
// Decode the signature
var sig []byte
if sig, err = DecodeSegment(signature); err != nil {
return err
}
var rsaKey *rsa.PublicKey
var ok bool
if rsaKey, ok = key.(*rsa.PublicKey); !ok {
return ErrInvalidKeyType
}
// Create hasher
if !m.Hash.Available() {
return ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
// Verify the signature
return rsa.VerifyPKCS1v15(rsaKey, m.Hash, hasher.Sum(nil), sig)
}
// Implements the Sign method from SigningMethod
// For this signing method, must be an rsa.PrivateKey structure.
func (m *SigningMethodRSA) Sign(signingString string, key interface{}) (string, error) {
var rsaKey *rsa.PrivateKey
var ok bool
// Validate type of key
if rsaKey, ok = key.(*rsa.PrivateKey); !ok {
return "", ErrInvalidKey
}
// Create the hasher
if !m.Hash.Available() {
return "", ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
// Sign the string and return the encoded bytes
if sigBytes, err := rsa.SignPKCS1v15(rand.Reader, rsaKey, m.Hash, hasher.Sum(nil)); err == nil {
return EncodeSegment(sigBytes), nil
} else {
return "", err
}
}
vendor/github.com/dgrijalva/jwt-go/rsa_pss.go deleted 100644 → 0
View file @ 36f81118
// +build go1.4
package jwt
import (
"crypto"
"crypto/rand"
"crypto/rsa"
)
// Implements the RSAPSS family of signing methods signing methods
type SigningMethodRSAPSS struct {
*SigningMethodRSA
Options *rsa.PSSOptions
}
// Specific instances for RS/PS and company
var (
SigningMethodPS256 *SigningMethodRSAPSS
SigningMethodPS384 *SigningMethodRSAPSS
SigningMethodPS512 *SigningMethodRSAPSS
)
func init() {
// PS256
SigningMethodPS256 = &SigningMethodRSAPSS{
&SigningMethodRSA{
Name: "PS256",
Hash: crypto.SHA256,
},
&rsa.PSSOptions{
SaltLength: rsa.PSSSaltLengthAuto,
Hash: crypto.SHA256,
},
}
RegisterSigningMethod(SigningMethodPS256.Alg(), func() SigningMethod {
return SigningMethodPS256
})
// PS384
SigningMethodPS384 = &SigningMethodRSAPSS{
&SigningMethodRSA{
Name: "PS384",
Hash: crypto.SHA384,
},
&rsa.PSSOptions{
SaltLength: rsa.PSSSaltLengthAuto,
Hash: crypto.SHA384,
},
}
RegisterSigningMethod(SigningMethodPS384.Alg(), func() SigningMethod {
return SigningMethodPS384
})
// PS512
SigningMethodPS512 = &SigningMethodRSAPSS{
&SigningMethodRSA{
Name: "PS512",
Hash: crypto.SHA512,
},
&rsa.PSSOptions{
SaltLength: rsa.PSSSaltLengthAuto,
Hash: crypto.SHA512,
},
}
RegisterSigningMethod(SigningMethodPS512.Alg(), func() SigningMethod {
return SigningMethodPS512
})
}
// Implements the Verify method from SigningMethod
// For this verify method, key must be an rsa.PublicKey struct
func (m *SigningMethodRSAPSS) Verify(signingString, signature string, key interface{}) error {
var err error
// Decode the signature
var sig []byte
if sig, err = DecodeSegment(signature); err != nil {
return err
}
var rsaKey *rsa.PublicKey
switch k := key.(type) {
case *rsa.PublicKey:
rsaKey = k
default:
return ErrInvalidKey
}
// Create hasher
if !m.Hash.Available() {
return ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
return rsa.VerifyPSS(rsaKey, m.Hash, hasher.Sum(nil), sig, m.Options)
}
// Implements the Sign method from SigningMethod
// For this signing method, key must be an rsa.PrivateKey struct
func (m *SigningMethodRSAPSS) Sign(signingString string, key interface{}) (string, error) {
var rsaKey *rsa.PrivateKey
switch k := key.(type) {
case *rsa.PrivateKey:
rsaKey = k
default:
return "", ErrInvalidKeyType
}
// Create the hasher
if !m.Hash.Available() {
return "", ErrHashUnavailable
}
hasher := m.Hash.New()
hasher.Write([]byte(signingString))
// Sign the string and return the encoded bytes
if sigBytes, err := rsa.SignPSS(rand.Reader, rsaKey, m.Hash, hasher.Sum(nil), m.Options); err == nil {
return EncodeSegment(sigBytes), nil
} else {
return "", err
}
}
vendor/github.com/dgrijalva/jwt-go/rsa_utils.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"crypto/rsa"
"crypto/x509"
"encoding/pem"
"errors"
)
var (
ErrKeyMustBePEMEncoded = errors.New("Invalid Key: Key must be PEM encoded PKCS1 or PKCS8 private key")
ErrNotRSAPrivateKey = errors.New("Key is not a valid RSA private key")
ErrNotRSAPublicKey = errors.New("Key is not a valid RSA public key")
)
// Parse PEM encoded PKCS1 or PKCS8 private key
func ParseRSAPrivateKeyFromPEM(key []byte) (*rsa.PrivateKey, error) {
var err error
// Parse PEM block
var block *pem.Block
if block, _ = pem.Decode(key); block == nil {
return nil, ErrKeyMustBePEMEncoded
}
var parsedKey interface{}
if parsedKey, err = x509.ParsePKCS1PrivateKey(block.Bytes); err != nil {
if parsedKey, err = x509.ParsePKCS8PrivateKey(block.Bytes); err != nil {
return nil, err
}
}
var pkey *rsa.PrivateKey
var ok bool
if pkey, ok = parsedKey.(*rsa.PrivateKey); !ok {
return nil, ErrNotRSAPrivateKey
}
return pkey, nil
}
// Parse PEM encoded PKCS1 or PKCS8 public key
func ParseRSAPublicKeyFromPEM(key []byte) (*rsa.PublicKey, error) {
var err error
// Parse PEM block
var block *pem.Block
if block, _ = pem.Decode(key); block == nil {
return nil, ErrKeyMustBePEMEncoded
}
// Parse the key
var parsedKey interface{}
if parsedKey, err = x509.ParsePKIXPublicKey(block.Bytes); err != nil {
if cert, err := x509.ParseCertificate(block.Bytes); err == nil {
parsedKey = cert.PublicKey
} else {
return nil, err
}
}
var pkey *rsa.PublicKey
var ok bool
if pkey, ok = parsedKey.(*rsa.PublicKey); !ok {
return nil, ErrNotRSAPublicKey
}
return pkey, nil
}
vendor/github.com/dgrijalva/jwt-go/signing_method.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"sync"
)
var signingMethods = map[string]func() SigningMethod{}
var signingMethodLock = new(sync.RWMutex)
// Implement SigningMethod to add new methods for signing or verifying tokens.
type SigningMethod interface {
Verify(signingString, signature string, key interface{}) error // Returns nil if signature is valid
Sign(signingString string, key interface{}) (string, error) // Returns encoded signature or error
Alg() string // returns the alg identifier for this method (example: 'HS256')
}
// Register the "alg" name and a factory function for signing method.
// This is typically done during init() in the method's implementation
func RegisterSigningMethod(alg string, f func() SigningMethod) {
signingMethodLock.Lock()
defer signingMethodLock.Unlock()
signingMethods[alg] = f
}
// Get a signing method from an "alg" string
func GetSigningMethod(alg string) (method SigningMethod) {
signingMethodLock.RLock()
defer signingMethodLock.RUnlock()
if methodF, ok := signingMethods[alg]; ok {
method = methodF()
}
return
}
vendor/github.com/dgrijalva/jwt-go/token.go deleted 100644 → 0
View file @ 36f81118
package jwt
import (
"encoding/base64"
"encoding/json"
"strings"
"time"
)
// TimeFunc provides the current time when parsing token to validate "exp" claim (expiration time).
// You can override it to use another time value. This is useful for testing or if your
// server uses a different time zone than your tokens.
var TimeFunc = time.Now
// Parse methods use this callback function to supply
// the key for verification. The function receives the parsed,
// but unverified Token. This allows you to use properties in the
// Header of the token (such as `kid`) to identify which key to use.
type Keyfunc func(*Token) (interface{}, error)
// A JWT Token. Different fields will be used depending on whether you're
// creating or parsing/verifying a token.
type Token struct {
Raw string // The raw token. Populated when you Parse a token
Method SigningMethod // The signing method used or to be used
Header map[string]interface{} // The first segment of the token
Claims Claims // The second segment of the token
Signature string // The third segment of the token. Populated when you Parse a token
Valid bool // Is the token valid? Populated when you Parse/Verify a token
}
// Create a new Token. Takes a signing method
func New(method SigningMethod) *Token {
return NewWithClaims(method, MapClaims{})
}
func NewWithClaims(method SigningMethod, claims Claims) *Token {
return &Token{
Header: map[string]interface{}{
"typ": "JWT",
"alg": method.Alg(),
},
Claims: claims,
Method: method,
}
}
// Get the complete, signed token
func (t *Token) SignedString(key interface{}) (string, error) {
var sig, sstr string
var err error
if sstr, err = t.SigningString(); err != nil {
return "", err
}
if sig, err = t.Method.Sign(sstr, key); err != nil {
return "", err
}
return strings.Join([]string{sstr, sig}, "."), nil
}
// Generate the signing string. This is the
// most expensive part of the whole deal. Unless you
// need this for something special, just go straight for
// the SignedString.
func (t *Token) SigningString() (string, error) {
var err error
parts := make([]string, 2)
for i, _ := range parts {
var jsonValue []byte
if i == 0 {
if jsonValue, err = json.Marshal(t.Header); err != nil {
return "", err
}
} else {
if jsonValue, err = json.Marshal(t.Claims); err != nil {
return "", err
}
}
parts[i] = EncodeSegment(jsonValue)
}
return strings.Join(parts, "."), nil
}
// Parse, validate, and return a token.
// keyFunc will receive the parsed token and should return the key for validating.
// If everything is kosher, err will be nil
func Parse(tokenString string, keyFunc Keyfunc) (*Token, error) {
return new(Parser).Parse(tokenString, keyFunc)
}
func ParseWithClaims(tokenString string, claims Claims, keyFunc Keyfunc) (*Token, error) {
return new(Parser).ParseWithClaims(tokenString, claims, keyFunc)
}
// Encode JWT specific base64url encoding with padding stripped
func EncodeSegment(seg []byte) string {
return strings.TrimRight(base64.URLEncoding.EncodeToString(seg), "=")
}
// Decode JWT specific base64url encoding with padding stripped
func DecodeSegment(seg string) ([]byte, error) {
if l := len(seg) % 4; l > 0 {
seg += strings.Repeat("=", 4-l)
}
return base64.URLEncoding.DecodeString(seg)
}
vendor/github.com/gizak/termui/LICENSE deleted 100644 → 0
View file @ 36f81118
The MIT License (MIT)
Copyright (c) 2015 Zack Guo
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
vendor/github.com/gizak/termui/README.md deleted 100644 → 0
View file @ 36f81118
# termui [![Build Status](https://travis-ci.org/gizak/termui.svg?branch=master)](https://travis-ci.org/gizak/termui) [![Doc Status](https://godoc.org/github.com/gizak/termui?status.png)](https://godoc.org/github.com/gizak/termui)
<img src="./_example/dashboard.gif" alt="demo cast under osx 10.10; Terminal.app; Menlo Regular 12pt.)" width="80%">
`termui` is a cross-platform, easy-to-compile, and fully-customizable terminal dashboard. It is inspired by [blessed-contrib](https://github.com/yaronn/blessed-contrib), but purely in Go.
Now version v2 has arrived! It brings new event system, new theme system, new `Buffer` interface and specific colour text rendering. (some docs are missing, but it will be completed soon!)
## Installation
`master` mirrors v2 branch, to install:
go get -u github.com/gizak/termui
It is recommanded to use locked deps by using [glide](https://glide.sh): move to `termui` src directory then run `glide up`.
For the compatible reason, you can choose to install the legacy version of `termui`:
go get gopkg.in/gizak/termui.v1
## Usage
### Layout
To use `termui`, the very first thing you may want to know is how to manage layout. `termui` offers two ways of doing this, known as absolute layout and grid layout.
__Absolute layout__
Each widget has an underlying block structure which basically is a box model. It has border, label and padding properties. A border of a widget can be chosen to hide or display (with its border label), you can pick a different front/back colour for the border as well. To display such a widget at a specific location in terminal window, you need to assign `.X`, `.Y`, `.Height`, `.Width` values for each widget before sending it to `.Render`. Let's demonstrate these by a code snippet:
`````go
import ui "github.com/gizak/termui" // <- ui shortcut, optional
func main() {
err := ui.Init()
if err != nil {
panic(err)
}
defer ui.Close()
p := ui.NewPar(":PRESS q TO QUIT DEMO")
p.Height = 3
p.Width = 50
p.TextFgColor = ui.ColorWhite
p.BorderLabel = "Text Box"
p.BorderFg = ui.ColorCyan
g := ui.NewGauge()
g.Percent = 50
g.Width = 50
g.Height = 3
g.Y = 11
g.BorderLabel = "Gauge"
g.BarColor = ui.ColorRed
g.BorderFg = ui.ColorWhite
g.BorderLabelFg = ui.ColorCyan
ui.Render(p, g) // feel free to call Render, it's async and non-block
// event handler...
}
`````
Note that components can be overlapped (I'd rather call this a feature...), `Render(rs ...Renderer)` renders its args from left to right (i.e. each component's weight is arising from left to right).
__Grid layout:__
<img src="./_example/grid.gif" alt="grid" width="60%">
Grid layout uses [12 columns grid system](http://www.w3schools.com/bootstrap/bootstrap_grid_system.asp) with expressive syntax. To use `Grid`, all we need to do is build a widget tree consisting of `Row`s and `Col`s (Actually a `Col` is also a `Row` but with a widget endpoint attached).
```go
import ui "github.com/gizak/termui"
// init and create widgets...
// build
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(6, 0, widget0),
ui.NewCol(6, 0, widget1)),
ui.NewRow(
ui.NewCol(3, 0, widget2),
ui.NewCol(3, 0, widget30, widget31, widget32),
ui.NewCol(6, 0, widget4)))
// calculate layout
ui.Body.Align()
ui.Render(ui.Body)
```
### Events
`termui` ships with a http-like event mux handling system. All events are channeled up from different sources (typing, click, windows resize, custom event) and then encoded as universal `Event` object. `Event.Path` indicates the event type and `Event.Data` stores the event data struct. Add a handler to a certain event is easy as below:
```go
// handle key q pressing
ui.Handle("/sys/kbd/q", func(ui.Event) {
// press q to quit
ui.StopLoop()
})
ui.Handle("/sys/kbd/C-x", func(ui.Event) {
// handle Ctrl + x combination
})
ui.Handle("/sys/kbd", func(ui.Event) {
// handle all other key pressing
})
// handle a 1s timer
ui.Handle("/timer/1s", func(e ui.Event) {
t := e.Data.(ui.EvtTimer)
// t is a EvtTimer
if t.Count%2 ==0 {
// do something
}
})
ui.Loop() // block until StopLoop is called
```
### Widgets
Click image to see the corresponding demo codes.
[<img src="./_example/par.png" alt="par" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/par.go)
[<img src="./_example/list.png" alt="list" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/list.go)
[<img src="./_example/gauge.png" alt="gauge" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/gauge.go)
[<img src="./_example/linechart.png" alt="linechart" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/linechart.go)
[<img src="./_example/barchart.png" alt="barchart" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/barchart.go)
[<img src="./_example/mbarchart.png" alt="barchart" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/mbarchart.go)
[<img src="./_example/sparklines.png" alt="sparklines" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/sparklines.go)
[<img src="./_example/table.png" alt="table" type="image/png" width="45%">](https://github.com/gizak/termui/blob/master/_example/table.go)
## GoDoc
[godoc](https://godoc.org/github.com/gizak/termui)
## TODO
- [x] Grid layout
- [x] Event system
- [x] Canvas widget
- [x] Refine APIs
- [ ] Focusable widgets
## Changelog
## License
This library is under the [MIT License](http://opensource.org/licenses/MIT)
vendor/github.com/gizak/termui/barchart.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import "fmt"
// BarChart creates multiple bars in a widget:
/*
bc := termui.NewBarChart()
data := []int{3, 2, 5, 3, 9, 5}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.BorderLabel = "Bar Chart"
bc.Data = data
bc.Width = 26
bc.Height = 10
bc.DataLabels = bclabels
bc.TextColor = termui.ColorGreen
bc.BarColor = termui.ColorRed
bc.NumColor = termui.ColorYellow
*/
type BarChart struct {
Block
BarColor Attribute
TextColor Attribute
NumColor Attribute
Data []int
DataLabels []string
BarWidth int
BarGap int
CellChar rune
labels [][]rune
dataNum [][]rune
numBar int
scale float64
max int
}
// NewBarChart returns a new *BarChart with current theme.
func NewBarChart() *BarChart {
bc := &BarChart{Block: *NewBlock()}
bc.BarColor = ThemeAttr("barchart.bar.bg")
bc.NumColor = ThemeAttr("barchart.num.fg")
bc.TextColor = ThemeAttr("barchart.text.fg")
bc.BarGap = 1
bc.BarWidth = 3
bc.CellChar = ' '
return bc
}
func (bc *BarChart) layout() {
bc.numBar = bc.innerArea.Dx() / (bc.BarGap + bc.BarWidth)
bc.labels = make([][]rune, bc.numBar)
bc.dataNum = make([][]rune, len(bc.Data))
for i := 0; i < bc.numBar && i < len(bc.DataLabels) && i < len(bc.Data); i++ {
bc.labels[i] = trimStr2Runes(bc.DataLabels[i], bc.BarWidth)
n := bc.Data[i]
s := fmt.Sprint(n)
bc.dataNum[i] = trimStr2Runes(s, bc.BarWidth)
}
//bc.max = bc.Data[0] // what if Data is nil? Sometimes when bar graph is nill it produces panic with panic: runtime error: index out of range
// Asign a negative value to get maxvalue auto-populates
if bc.max == 0 {
bc.max = -1
}
for i := 0; i < len(bc.Data); i++ {
if bc.max < bc.Data[i] {
bc.max = bc.Data[i]
}
}
bc.scale = float64(bc.max) / float64(bc.innerArea.Dy()-1)
}
func (bc *BarChart) SetMax(max int) {
if max > 0 {
bc.max = max
}
}
// Buffer implements Bufferer interface.
func (bc *BarChart) Buffer() Buffer {
buf := bc.Block.Buffer()
bc.layout()
for i := 0; i < bc.numBar && i < len(bc.Data) && i < len(bc.DataLabels); i++ {
h := int(float64(bc.Data[i]) / bc.scale)
oftX := i * (bc.BarWidth + bc.BarGap)
barBg := bc.Bg
barFg := bc.BarColor
if bc.CellChar == ' ' {
barBg = bc.BarColor
barFg = ColorDefault
if bc.BarColor == ColorDefault { // the same as above
barBg |= AttrReverse
}
}
// plot bar
for j := 0; j < bc.BarWidth; j++ {
for k := 0; k < h; k++ {
c := Cell{
Ch: bc.CellChar,
Bg: barBg,
Fg: barFg,
}
x := bc.innerArea.Min.X + i*(bc.BarWidth+bc.BarGap) + j
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2 - k
buf.Set(x, y, c)
}
}
// plot text
for j, k := 0, 0; j < len(bc.labels[i]); j++ {
w := charWidth(bc.labels[i][j])
c := Cell{
Ch: bc.labels[i][j],
Bg: bc.Bg,
Fg: bc.TextColor,
}
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 1
x := bc.innerArea.Min.X + oftX + k
buf.Set(x, y, c)
k += w
}
// plot num
for j := 0; j < len(bc.dataNum[i]); j++ {
c := Cell{
Ch: bc.dataNum[i][j],
Fg: bc.NumColor,
Bg: barBg,
}
if h == 0 {
c.Bg = bc.Bg
}
x := bc.innerArea.Min.X + oftX + (bc.BarWidth-len(bc.dataNum[i]))/2 + j
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2
buf.Set(x, y, c)
}
}
return buf
}
vendor/github.com/gizak/termui/block.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import "image"
// Hline is a horizontal line.
type Hline struct {
X int
Y int
Len int
Fg Attribute
Bg Attribute
}
// Vline is a vertical line.
type Vline struct {
X int
Y int
Len int
Fg Attribute
Bg Attribute
}
// Buffer draws a horizontal line.
func (l Hline) Buffer() Buffer {
if l.Len <= 0 {
return NewBuffer()
}
return NewFilledBuffer(l.X, l.Y, l.X+l.Len, l.Y+1, HORIZONTAL_LINE, l.Fg, l.Bg)
}
// Buffer draws a vertical line.
func (l Vline) Buffer() Buffer {
if l.Len <= 0 {
return NewBuffer()
}
return NewFilledBuffer(l.X, l.Y, l.X+1, l.Y+l.Len, VERTICAL_LINE, l.Fg, l.Bg)
}
// Buffer draws a box border.
func (b Block) drawBorder(buf Buffer) {
if !b.Border {
return
}
min := b.area.Min
max := b.area.Max
x0 := min.X
y0 := min.Y
x1 := max.X - 1
y1 := max.Y - 1
// draw lines
if b.BorderTop {
buf.Merge(Hline{x0, y0, x1 - x0, b.BorderFg, b.BorderBg}.Buffer())
}
if b.BorderBottom {
buf.Merge(Hline{x0, y1, x1 - x0, b.BorderFg, b.BorderBg}.Buffer())
}
if b.BorderLeft {
buf.Merge(Vline{x0, y0, y1 - y0, b.BorderFg, b.BorderBg}.Buffer())
}
if b.BorderRight {
buf.Merge(Vline{x1, y0, y1 - y0, b.BorderFg, b.BorderBg}.Buffer())
}
// draw corners
if b.BorderTop && b.BorderLeft && b.area.Dx() > 0 && b.area.Dy() > 0 {
buf.Set(x0, y0, Cell{TOP_LEFT, b.BorderFg, b.BorderBg})
}
if b.BorderTop && b.BorderRight && b.area.Dx() > 1 && b.area.Dy() > 0 {
buf.Set(x1, y0, Cell{TOP_RIGHT, b.BorderFg, b.BorderBg})
}
if b.BorderBottom && b.BorderLeft && b.area.Dx() > 0 && b.area.Dy() > 1 {
buf.Set(x0, y1, Cell{BOTTOM_LEFT, b.BorderFg, b.BorderBg})
}
if b.BorderBottom && b.BorderRight && b.area.Dx() > 1 && b.area.Dy() > 1 {
buf.Set(x1, y1, Cell{BOTTOM_RIGHT, b.BorderFg, b.BorderBg})
}
}
func (b Block) drawBorderLabel(buf Buffer) {
maxTxtW := b.area.Dx() - 2
tx := DTrimTxCls(DefaultTxBuilder.Build(b.BorderLabel, b.BorderLabelFg, b.BorderLabelBg), maxTxtW)
for i, w := 0, 0; i < len(tx); i++ {
buf.Set(b.area.Min.X+1+w, b.area.Min.Y, tx[i])
w += tx[i].Width()
}
}
// Block is a base struct for all other upper level widgets,
// consider it as css: display:block.
// Normally you do not need to create it manually.
type Block struct {
area image.Rectangle
innerArea image.Rectangle
X int
Y int
Border bool
BorderFg Attribute
BorderBg Attribute
BorderLeft bool
BorderRight bool
BorderTop bool
BorderBottom bool
BorderLabel string
BorderLabelFg Attribute
BorderLabelBg Attribute
Display bool
Bg Attribute
Width int
Height int
PaddingTop int
PaddingBottom int
PaddingLeft int
PaddingRight int
id string
Float Align
}
// NewBlock returns a *Block which inherits styles from current theme.
func NewBlock() *Block {
b := Block{}
b.Display = true
b.Border = true
b.BorderLeft = true
b.BorderRight = true
b.BorderTop = true
b.BorderBottom = true
b.BorderBg = ThemeAttr("border.bg")
b.BorderFg = ThemeAttr("border.fg")
b.BorderLabelBg = ThemeAttr("label.bg")
b.BorderLabelFg = ThemeAttr("label.fg")
b.Bg = ThemeAttr("block.bg")
b.Width = 2
b.Height = 2
b.id = GenId()
b.Float = AlignNone
return &b
}
func (b Block) Id() string {
return b.id
}
// Align computes box model
func (b *Block) Align() {
// outer
b.area.Min.X = 0
b.area.Min.Y = 0
b.area.Max.X = b.Width
b.area.Max.Y = b.Height
// float
b.area = AlignArea(TermRect(), b.area, b.Float)
b.area = MoveArea(b.area, b.X, b.Y)
// inner
b.innerArea.Min.X = b.area.Min.X + b.PaddingLeft
b.innerArea.Min.Y = b.area.Min.Y + b.PaddingTop
b.innerArea.Max.X = b.area.Max.X - b.PaddingRight
b.innerArea.Max.Y = b.area.Max.Y - b.PaddingBottom
if b.Border {
if b.BorderLeft {
b.innerArea.Min.X++
}
if b.BorderRight {
b.innerArea.Max.X--
}
if b.BorderTop {
b.innerArea.Min.Y++
}
if b.BorderBottom {
b.innerArea.Max.Y--
}
}
}
// InnerBounds returns the internal bounds of the block after aligning and
// calculating the padding and border, if any.
func (b *Block) InnerBounds() image.Rectangle {
b.Align()
return b.innerArea
}
// Buffer implements Bufferer interface.
// Draw background and border (if any).
func (b *Block) Buffer() Buffer {
b.Align()
buf := NewBuffer()
buf.SetArea(b.area)
buf.Fill(' ', ColorDefault, b.Bg)
b.drawBorder(buf)
b.drawBorderLabel(buf)
return buf
}
// GetHeight implements GridBufferer.
// It returns current height of the block.
func (b Block) GetHeight() int {
return b.Height
}
// SetX implements GridBufferer interface, which sets block's x position.
func (b *Block) SetX(x int) {
b.X = x
}
// SetY implements GridBufferer interface, it sets y position for block.
func (b *Block) SetY(y int) {
b.Y = y
}
// SetWidth implements GridBuffer interface, it sets block's width.
func (b *Block) SetWidth(w int) {
b.Width = w
}
func (b Block) InnerWidth() int {
return b.innerArea.Dx()
}
func (b Block) InnerHeight() int {
return b.innerArea.Dy()
}
func (b Block) InnerX() int {
return b.innerArea.Min.X
}
func (b Block) InnerY() int { return b.innerArea.Min.Y }
vendor/github.com/gizak/termui/block_common.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
// +build !windows
package termui
const TOP_RIGHT = '┐'
const VERTICAL_LINE = '│'
const HORIZONTAL_LINE = '─'
const TOP_LEFT = '┌'
const BOTTOM_RIGHT = '┘'
const BOTTOM_LEFT = '└'
const VERTICAL_LEFT = '┤'
const VERTICAL_RIGHT = '├'
const HORIZONTAL_DOWN = '┬'
const HORIZONTAL_UP = '┴'
const QUOTA_LEFT = '«'
const QUOTA_RIGHT = '»'
vendor/github.com/gizak/termui/block_windows.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
// +build windows
package termui
const TOP_RIGHT = '+'
const VERTICAL_LINE = '|'
const HORIZONTAL_LINE = '-'
const TOP_LEFT = '+'
const BOTTOM_RIGHT = '+'
const BOTTOM_LEFT = '+'
vendor/github.com/gizak/termui/buffer.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import "image"
// Cell is a rune with assigned Fg and Bg
type Cell struct {
Ch rune
Fg Attribute
Bg Attribute
}
// Buffer is a renderable rectangle cell data container.
type Buffer struct {
Area image.Rectangle // selected drawing area
CellMap map[image.Point]Cell
}
// At returns the cell at (x,y).
func (b Buffer) At(x, y int) Cell {
return b.CellMap[image.Pt(x, y)]
}
// Set assigns a char to (x,y)
func (b Buffer) Set(x, y int, c Cell) {
b.CellMap[image.Pt(x, y)] = c
}
// Bounds returns the domain for which At can return non-zero color.
func (b Buffer) Bounds() image.Rectangle {
x0, y0, x1, y1 := 0, 0, 0, 0
for p := range b.CellMap {
if p.X > x1 {
x1 = p.X
}
if p.X < x0 {
x0 = p.X
}
if p.Y > y1 {
y1 = p.Y
}
if p.Y < y0 {
y0 = p.Y
}
}
return image.Rect(x0, y0, x1+1, y1+1)
}
// SetArea assigns a new rect area to Buffer b.
func (b *Buffer) SetArea(r image.Rectangle) {
b.Area.Max = r.Max
b.Area.Min = r.Min
}
// Sync sets drawing area to the buffer's bound
func (b *Buffer) Sync() {
b.SetArea(b.Bounds())
}
// NewCell returns a new cell
func NewCell(ch rune, fg, bg Attribute) Cell {
return Cell{ch, fg, bg}
}
// Merge merges bs Buffers onto b
func (b *Buffer) Merge(bs ...Buffer) {
for _, buf := range bs {
for p, v := range buf.CellMap {
b.Set(p.X, p.Y, v)
}
b.SetArea(b.Area.Union(buf.Area))
}
}
// NewBuffer returns a new Buffer
func NewBuffer() Buffer {
return Buffer{
CellMap: make(map[image.Point]Cell),
Area: image.Rectangle{}}
}
// Fill fills the Buffer b with ch,fg and bg.
func (b Buffer) Fill(ch rune, fg, bg Attribute) {
for x := b.Area.Min.X; x < b.Area.Max.X; x++ {
for y := b.Area.Min.Y; y < b.Area.Max.Y; y++ {
b.Set(x, y, Cell{ch, fg, bg})
}
}
}
// NewFilledBuffer returns a new Buffer filled with ch, fb and bg.
func NewFilledBuffer(x0, y0, x1, y1 int, ch rune, fg, bg Attribute) Buffer {
buf := NewBuffer()
buf.Area.Min = image.Pt(x0, y0)
buf.Area.Max = image.Pt(x1, y1)
for x := buf.Area.Min.X; x < buf.Area.Max.X; x++ {
for y := buf.Area.Min.Y; y < buf.Area.Max.Y; y++ {
buf.Set(x, y, Cell{ch, fg, bg})
}
}
return buf
}
vendor/github.com/gizak/termui/canvas.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
/*
dots:
,___,
|1 4|
|2 5|
|3 6|
|7 8|
`````
*/
var brailleBase = '\u2800'
var brailleOftMap = [4][2]rune{
{'\u0001', '\u0008'},
{'\u0002', '\u0010'},
{'\u0004', '\u0020'},
{'\u0040', '\u0080'}}
// Canvas contains drawing map: i,j -> rune
type Canvas map[[2]int]rune
// NewCanvas returns an empty Canvas
func NewCanvas() Canvas {
return make(map[[2]int]rune)
}
func chOft(x, y int) rune {
return brailleOftMap[y%4][x%2]
}
func (c Canvas) rawCh(x, y int) rune {
if ch, ok := c[[2]int{x, y}]; ok {
return ch
}
return '\u0000' //brailleOffset
}
// return coordinate in terminal
func chPos(x, y int) (int, int) {
return y / 4, x / 2
}
// Set sets a point (x,y) in the virtual coordinate
func (c Canvas) Set(x, y int) {
i, j := chPos(x, y)
ch := c.rawCh(i, j)
ch |= chOft(x, y)
c[[2]int{i, j}] = ch
}
// Unset removes point (x,y)
func (c Canvas) Unset(x, y int) {
i, j := chPos(x, y)
ch := c.rawCh(i, j)
ch &= ^chOft(x, y)
c[[2]int{i, j}] = ch
}
// Buffer returns un-styled points
func (c Canvas) Buffer() Buffer {
buf := NewBuffer()
for k, v := range c {
buf.Set(k[0], k[1], Cell{Ch: v + brailleBase})
}
return buf
}
vendor/github.com/gizak/termui/config.py deleted 100644 → 0
View file @ 36f81118
#!/usr/bin/env python3
import re
import os
import io
copyright = """// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
"""
exclude_dirs = [".git", "_docs"]
exclude_files = []
include_dirs = [".", "debug", "extra", "test", "_example"]
def is_target(fpath):
if os.path.splitext(fpath)[-1] == ".go":
return True
return False
def update_copyright(fpath):
print("processing " + fpath)
f = io.open(fpath, 'r', encoding='utf-8')
fstr = f.read()
f.close()
# remove old
m = re.search('^// Copyright .+?\r?\n\r?\n', fstr, re.MULTILINE|re.DOTALL)
if m:
fstr = fstr[m.end():]
# add new
fstr = copyright + fstr
f = io.open(fpath, 'w',encoding='utf-8')
f.write(fstr)
f.close()
def main():
for d in include_dirs:
files = [
os.path.join(d, f) for f in os.listdir(d)
if os.path.isfile(os.path.join(d, f))
]
for f in files:
if is_target(f):
update_copyright(f)
if __name__ == '__main__':
main()
vendor/github.com/gizak/termui/doc.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
/*
Package termui is a library designed for creating command line UI. For more info, goto http://github.com/gizak/termui
A simplest example:
package main
import ui "github.com/gizak/termui"
func main() {
if err:=ui.Init(); err != nil {
panic(err)
}
defer ui.Close()
g := ui.NewGauge()
g.Percent = 50
g.Width = 50
g.BorderLabel = "Gauge"
ui.Render(g)
ui.Loop()
}
*/
package termui
vendor/github.com/gizak/termui/events.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"path"
"strconv"
"sync"
"time"
"github.com/nsf/termbox-go"
)
type Event struct {
Type string
Path string
From string
To string
Data interface{}
Time int64
}
var sysEvtChs []chan Event
type EvtKbd struct {
KeyStr string
}
func evtKbd(e termbox.Event) EvtKbd {
ek := EvtKbd{}
k := string(e.Ch)
pre := ""
mod := ""
if e.Mod == termbox.ModAlt {
mod = "M-"
}
if e.Ch == 0 {
if e.Key > 0xFFFF-12 {
k = "<f" + strconv.Itoa(0xFFFF-int(e.Key)+1) + ">"
} else if e.Key > 0xFFFF-25 {
ks := []string{"<insert>", "<delete>", "<home>", "<end>", "<previous>", "<next>", "<up>", "<down>", "<left>", "<right>"}
k = ks[0xFFFF-int(e.Key)-12]
}
if e.Key <= 0x7F {
pre = "C-"
k = string('a' - 1 + int(e.Key))
kmap := map[termbox.Key][2]string{
termbox.KeyCtrlSpace: {"C-", "<space>"},
termbox.KeyBackspace: {"", "<backspace>"},
termbox.KeyTab: {"", "<tab>"},
termbox.KeyEnter: {"", "<enter>"},
termbox.KeyEsc: {"", "<escape>"},
termbox.KeyCtrlBackslash: {"C-", "\\"},
termbox.KeyCtrlSlash: {"C-", "/"},
termbox.KeySpace: {"", "<space>"},
termbox.KeyCtrl8: {"C-", "8"},
}
if sk, ok := kmap[e.Key]; ok {
pre = sk[0]
k = sk[1]
}
}
}
ek.KeyStr = pre + mod + k
return ek
}
func crtTermboxEvt(e termbox.Event) Event {
systypemap := map[termbox.EventType]string{
termbox.EventKey: "keyboard",
termbox.EventResize: "window",
termbox.EventMouse: "mouse",
termbox.EventError: "error",
termbox.EventInterrupt: "interrupt",
}
ne := Event{From: "/sys", Time: time.Now().Unix()}
typ := e.Type
ne.Type = systypemap[typ]
switch typ {
case termbox.EventKey:
kbd := evtKbd(e)
ne.Path = "/sys/kbd/" + kbd.KeyStr
ne.Data = kbd
case termbox.EventResize:
wnd := EvtWnd{}
wnd.Width = e.Width
wnd.Height = e.Height
ne.Path = "/sys/wnd/resize"
ne.Data = wnd
case termbox.EventError:
err := EvtErr(e.Err)
ne.Path = "/sys/err"
ne.Data = err
case termbox.EventMouse:
m := EvtMouse{}
m.X = e.MouseX
m.Y = e.MouseY
ne.Path = "/sys/mouse"
ne.Data = m
}
return ne
}
type EvtWnd struct {
Width int
Height int
}
type EvtMouse struct {
X int
Y int
Press string
}
type EvtErr error
func hookTermboxEvt() {
for {
e := termbox.PollEvent()
for _, c := range sysEvtChs {
go func(ch chan Event) {
ch <- crtTermboxEvt(e)
}(c)
}
}
}
func NewSysEvtCh() chan Event {
ec := make(chan Event)
sysEvtChs = append(sysEvtChs, ec)
return ec
}
var DefaultEvtStream = NewEvtStream()
type EvtStream struct {
sync.RWMutex
srcMap map[string]chan Event
stream chan Event
wg sync.WaitGroup
sigStopLoop chan Event
Handlers map[string]func(Event)
hook func(Event)
}
func NewEvtStream() *EvtStream {
return &EvtStream{
srcMap: make(map[string]chan Event),
stream: make(chan Event),
Handlers: make(map[string]func(Event)),
sigStopLoop: make(chan Event),
}
}
func (es *EvtStream) Init() {
es.Merge("internal", es.sigStopLoop)
go func() {
es.wg.Wait()
close(es.stream)
}()
}
func cleanPath(p string) string {
if p == "" {
return "/"
}
if p[0] != '/' {
p = "/" + p
}
return path.Clean(p)
}
func isPathMatch(pattern, path string) bool {
if len(pattern) == 0 {
return false
}
n := len(pattern)
return len(path) >= n && path[0:n] == pattern
}
func (es *EvtStream) Merge(name string, ec chan Event) {
es.Lock()
defer es.Unlock()
es.wg.Add(1)
es.srcMap[name] = ec
go func(a chan Event) {
for n := range a {
n.From = name
es.stream <- n
}
es.wg.Done()
}(ec)
}
func (es *EvtStream) Handle(path string, handler func(Event)) {
es.Handlers[cleanPath(path)] = handler
}
func findMatch(mux map[string]func(Event), path string) string {
n := -1
pattern := ""
for m := range mux {
if !isPathMatch(m, path) {
continue
}
if len(m) > n {
pattern = m
n = len(m)
}
}
return pattern
}
// Remove all existing defined Handlers from the map
func (es *EvtStream) ResetHandlers() {
for Path, _ := range es.Handlers {
delete(es.Handlers, Path)
}
return
}
func (es *EvtStream) match(path string) string {
return findMatch(es.Handlers, path)
}
func (es *EvtStream) Hook(f func(Event)) {
es.hook = f
}
func (es *EvtStream) Loop() {
for e := range es.stream {
switch e.Path {
case "/sig/stoploop":
return
}
go func(a Event) {
es.RLock()
defer es.RUnlock()
if pattern := es.match(a.Path); pattern != "" {
es.Handlers[pattern](a)
}
}(e)
if es.hook != nil {
es.hook(e)
}
}
}
func (es *EvtStream) StopLoop() {
go func() {
e := Event{
Path: "/sig/stoploop",
}
es.sigStopLoop <- e
}()
}
func Merge(name string, ec chan Event) {
DefaultEvtStream.Merge(name, ec)
}
func Handle(path string, handler func(Event)) {
DefaultEvtStream.Handle(path, handler)
}
func Loop() {
DefaultEvtStream.Loop()
}
func StopLoop() {
DefaultEvtStream.StopLoop()
}
type EvtTimer struct {
Duration time.Duration
Count uint64
}
func NewTimerCh(du time.Duration) chan Event {
t := make(chan Event)
go func(a chan Event) {
n := uint64(0)
for {
n++
time.Sleep(du)
e := Event{}
e.Type = "timer"
e.Path = "/timer/" + du.String()
e.Time = time.Now().Unix()
e.Data = EvtTimer{
Duration: du,
Count: n,
}
t <- e
}
}(t)
return t
}
var DefaultHandler = func(e Event) {
}
var usrEvtCh = make(chan Event)
func SendCustomEvt(path string, data interface{}) {
e := Event{}
e.Path = path
e.Data = data
e.Time = time.Now().Unix()
usrEvtCh <- e
}
vendor/github.com/gizak/termui/gauge.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"strconv"
"strings"
)
// Gauge is a progress bar like widget.
// A simple example:
/*
g := termui.NewGauge()
g.Percent = 40
g.Width = 50
g.Height = 3
g.BorderLabel = "Slim Gauge"
g.BarColor = termui.ColorRed
g.PercentColor = termui.ColorBlue
*/
const ColorUndef Attribute = Attribute(^uint16(0))
type Gauge struct {
Block
Percent int
BarColor Attribute
PercentColor Attribute
PercentColorHighlighted Attribute
Label string
LabelAlign Align
}
// NewGauge return a new gauge with current theme.
func NewGauge() *Gauge {
g := &Gauge{
Block: *NewBlock(),
PercentColor: ThemeAttr("gauge.percent.fg"),
BarColor: ThemeAttr("gauge.bar.bg"),
Label: "{{percent}}%",
LabelAlign: AlignCenter,
PercentColorHighlighted: ColorUndef,
}
g.Width = 12
g.Height = 5
return g
}
// Buffer implements Bufferer interface.
func (g *Gauge) Buffer() Buffer {
buf := g.Block.Buffer()
// plot bar
w := g.Percent * g.innerArea.Dx() / 100
for i := 0; i < g.innerArea.Dy(); i++ {
for j := 0; j < w; j++ {
c := Cell{}
c.Ch = ' '
c.Bg = g.BarColor
if c.Bg == ColorDefault {
c.Bg |= AttrReverse
}
buf.Set(g.innerArea.Min.X+j, g.innerArea.Min.Y+i, c)
}
}
// plot percentage
s := strings.Replace(g.Label, "{{percent}}", strconv.Itoa(g.Percent), -1)
pry := g.innerArea.Min.Y + g.innerArea.Dy()/2
rs := str2runes(s)
var pos int
switch g.LabelAlign {
case AlignLeft:
pos = 0
case AlignCenter:
pos = (g.innerArea.Dx() - strWidth(s)) / 2
case AlignRight:
pos = g.innerArea.Dx() - strWidth(s) - 1
}
pos += g.innerArea.Min.X
for i, v := range rs {
c := Cell{
Ch: v,
Fg: g.PercentColor,
}
if w+g.innerArea.Min.X > pos+i {
c.Bg = g.BarColor
if c.Bg == ColorDefault {
c.Bg |= AttrReverse
}
if g.PercentColorHighlighted != ColorUndef {
c.Fg = g.PercentColorHighlighted
}
} else {
c.Bg = g.Block.Bg
}
buf.Set(1+pos+i, pry, c)
}
return buf
}
vendor/github.com/gizak/termui/glide.lock deleted 100644 → 0
View file @ 36f81118
hash: 7a754ba100256404a978b2fc8738aee337beb822458e4b6060399fb89ebd215c
updated: 2016-11-03T17:39:24.323773674-04:00
imports:
- name: github.com/maruel/panicparse
version: ad661195ed0e88491e0f14be6613304e3b1141d6
subpackages:
- stack
- name: github.com/mattn/go-runewidth
version: 737072b4e32b7a5018b4a7125da8d12de90e8045
- name: github.com/mitchellh/go-wordwrap
version: ad45545899c7b13c020ea92b2072220eefad42b8
- name: github.com/nsf/termbox-go
version: b6acae516ace002cb8105a89024544a1480655a5
- name: golang.org/x/net
version: 569280fa63be4e201b975e5411e30a92178f0118
subpackages:
- websocket
testImports:
- name: github.com/davecgh/go-spew
version: 346938d642f2ec3594ed81d874461961cd0faa76
subpackages:
- spew
- name: github.com/pmezard/go-difflib
version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
subpackages:
- difflib
- name: github.com/stretchr/testify
version: 976c720a22c8eb4eb6a0b4348ad85ad12491a506
subpackages:
- assert
vendor/github.com/gizak/termui/glide.yaml deleted 100644 → 0
View file @ 36f81118
package: github.com/gizak/termui
import:
- package: github.com/mattn/go-runewidth
- package: github.com/mitchellh/go-wordwrap
- package: github.com/nsf/termbox-go
- package: golang.org/x/net
subpackages:
- websocket
- package: github.com/maruel/panicparse
vendor/github.com/gizak/termui/grid.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
// GridBufferer introduces a Bufferer that can be manipulated by Grid.
type GridBufferer interface {
Bufferer
GetHeight() int
SetWidth(int)
SetX(int)
SetY(int)
}
// Row builds a layout tree
type Row struct {
Cols []*Row //children
Widget GridBufferer // root
X int
Y int
Width int
Height int
Span int
Offset int
}
// calculate and set the underlying layout tree's x, y, height and width.
func (r *Row) calcLayout() {
r.assignWidth(r.Width)
r.Height = r.solveHeight()
r.assignX(r.X)
r.assignY(r.Y)
}
// tell if the node is leaf in the tree.
func (r *Row) isLeaf() bool {
return r.Cols == nil || len(r.Cols) == 0
}
func (r *Row) isRenderableLeaf() bool {
return r.isLeaf() && r.Widget != nil
}
// assign widgets' (and their parent rows') width recursively.
func (r *Row) assignWidth(w int) {
r.SetWidth(w)
accW := 0 // acc span and offset
calcW := make([]int, len(r.Cols)) // calculated width
calcOftX := make([]int, len(r.Cols)) // computated start position of x
for i, c := range r.Cols {
accW += c.Span + c.Offset
cw := int(float64(c.Span*r.Width) / 12.0)
if i >= 1 {
calcOftX[i] = calcOftX[i-1] +
calcW[i-1] +
int(float64(r.Cols[i-1].Offset*r.Width)/12.0)
}
// use up the space if it is the last col
if i == len(r.Cols)-1 && accW == 12 {
cw = r.Width - calcOftX[i]
}
calcW[i] = cw
r.Cols[i].assignWidth(cw)
}
}
// bottom up calc and set rows' (and their widgets') height,
// return r's total height.
func (r *Row) solveHeight() int {
if r.isRenderableLeaf() {
r.Height = r.Widget.GetHeight()
return r.Widget.GetHeight()
}
maxh := 0
if !r.isLeaf() {
for _, c := range r.Cols {
nh := c.solveHeight()
// when embed rows in Cols, row widgets stack up
if r.Widget != nil {
nh += r.Widget.GetHeight()
}
if nh > maxh {
maxh = nh
}
}
}
r.Height = maxh
return maxh
}
// recursively assign x position for r tree.
func (r *Row) assignX(x int) {
r.SetX(x)
if !r.isLeaf() {
acc := 0
for i, c := range r.Cols {
if c.Offset != 0 {
acc += int(float64(c.Offset*r.Width) / 12.0)
}
r.Cols[i].assignX(x + acc)
acc += c.Width
}
}
}
// recursively assign y position to r.
func (r *Row) assignY(y int) {
r.SetY(y)
if r.isLeaf() {
return
}
for i := range r.Cols {
acc := 0
if r.Widget != nil {
acc = r.Widget.GetHeight()
}
r.Cols[i].assignY(y + acc)
}
}
// GetHeight implements GridBufferer interface.
func (r Row) GetHeight() int {
return r.Height
}
// SetX implements GridBufferer interface.
func (r *Row) SetX(x int) {
r.X = x
if r.Widget != nil {
r.Widget.SetX(x)
}
}
// SetY implements GridBufferer interface.
func (r *Row) SetY(y int) {
r.Y = y
if r.Widget != nil {
r.Widget.SetY(y)
}
}
// SetWidth implements GridBufferer interface.
func (r *Row) SetWidth(w int) {
r.Width = w
if r.Widget != nil {
r.Widget.SetWidth(w)
}
}
// Buffer implements Bufferer interface,
// recursively merge all widgets buffer
func (r *Row) Buffer() Buffer {
merged := NewBuffer()
if r.isRenderableLeaf() {
return r.Widget.Buffer()
}
// for those are not leaves but have a renderable widget
if r.Widget != nil {
merged.Merge(r.Widget.Buffer())
}
// collect buffer from children
if !r.isLeaf() {
for _, c := range r.Cols {
merged.Merge(c.Buffer())
}
}
return merged
}
// Grid implements 12 columns system.
// A simple example:
/*
import ui "github.com/gizak/termui"
// init and create widgets...
// build
ui.Body.AddRows(
ui.NewRow(
ui.NewCol(6, 0, widget0),
ui.NewCol(6, 0, widget1)),
ui.NewRow(
ui.NewCol(3, 0, widget2),
ui.NewCol(3, 0, widget30, widget31, widget32),
ui.NewCol(6, 0, widget4)))
// calculate layout
ui.Body.Align()
ui.Render(ui.Body)
*/
type Grid struct {
Rows []*Row
Width int
X int
Y int
BgColor Attribute
}
// NewGrid returns *Grid with given rows.
func NewGrid(rows ...*Row) *Grid {
return &Grid{Rows: rows}
}
// AddRows appends given rows to Grid.
func (g *Grid) AddRows(rs ...*Row) {
g.Rows = append(g.Rows, rs...)
}
// NewRow creates a new row out of given columns.
func NewRow(cols ...*Row) *Row {
rs := &Row{Span: 12, Cols: cols}
return rs
}
// NewCol accepts: widgets are LayoutBufferer or widgets is A NewRow.
// Note that if multiple widgets are provided, they will stack up in the col.
func NewCol(span, offset int, widgets ...GridBufferer) *Row {
r := &Row{Span: span, Offset: offset}
if widgets != nil && len(widgets) == 1 {
wgt := widgets[0]
nw, isRow := wgt.(*Row)
if isRow {
r.Cols = nw.Cols
} else {
r.Widget = wgt
}
return r
}
r.Cols = []*Row{}
ir := r
for _, w := range widgets {
nr := &Row{Span: 12, Widget: w}
ir.Cols = []*Row{nr}
ir = nr
}
return r
}
// Align calculate each rows' layout.
func (g *Grid) Align() {
h := 0
for _, r := range g.Rows {
r.SetWidth(g.Width)
r.SetX(g.X)
r.SetY(g.Y + h)
r.calcLayout()
h += r.GetHeight()
}
}
// Buffer implments Bufferer interface.
func (g Grid) Buffer() Buffer {
buf := NewBuffer()
for _, r := range g.Rows {
buf.Merge(r.Buffer())
}
return buf
}
var Body *Grid
vendor/github.com/gizak/termui/helper.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"regexp"
"strings"
tm "github.com/nsf/termbox-go"
)
import rw "github.com/mattn/go-runewidth"
/* ---------------Port from termbox-go --------------------- */
// Attribute is printable cell's color and style.
type Attribute uint16
// 8 basic clolrs
const (
ColorDefault Attribute = iota
ColorBlack
ColorRed
ColorGreen
ColorYellow
ColorBlue
ColorMagenta
ColorCyan
ColorWhite
)
//Have a constant that defines number of colors
const NumberofColors = 8
// Text style
const (
AttrBold Attribute = 1 << (iota + 9)
AttrUnderline
AttrReverse
)
var (
dot = "…"
dotw = rw.StringWidth(dot)
)
/* ----------------------- End ----------------------------- */
func toTmAttr(x Attribute) tm.Attribute {
return tm.Attribute(x)
}
func str2runes(s string) []rune {
return []rune(s)
}
// Here for backwards-compatibility.
func trimStr2Runes(s string, w int) []rune {
return TrimStr2Runes(s, w)
}
// TrimStr2Runes trims string to w[-1 rune], appends …, and returns the runes
// of that string if string is grather then n. If string is small then w,
// return the runes.
func TrimStr2Runes(s string, w int) []rune {
if w <= 0 {
return []rune{}
}
sw := rw.StringWidth(s)
if sw > w {
return []rune(rw.Truncate(s, w, dot))
}
return str2runes(s)
}
// TrimStrIfAppropriate trim string to "s[:-1] + …"
// if string > width otherwise return string
func TrimStrIfAppropriate(s string, w int) string {
if w <= 0 {
return ""
}
sw := rw.StringWidth(s)
if sw > w {
return rw.Truncate(s, w, dot)
}
return s
}
func strWidth(s string) int {
return rw.StringWidth(s)
}
func charWidth(ch rune) int {
return rw.RuneWidth(ch)
}
var whiteSpaceRegex = regexp.MustCompile(`\s`)
// StringToAttribute converts text to a termui attribute. You may specifiy more
// then one attribute like that: "BLACK, BOLD, ...". All whitespaces
// are ignored.
func StringToAttribute(text string) Attribute {
text = whiteSpaceRegex.ReplaceAllString(strings.ToLower(text), "")
attributes := strings.Split(text, ",")
result := Attribute(0)
for _, theAttribute := range attributes {
var match Attribute
switch theAttribute {
case "reset", "default":
match = ColorDefault
case "black":
match = ColorBlack
case "red":
match = ColorRed
case "green":
match = ColorGreen
case "yellow":
match = ColorYellow
case "blue":
match = ColorBlue
case "magenta":
match = ColorMagenta
case "cyan":
match = ColorCyan
case "white":
match = ColorWhite
case "bold":
match = AttrBold
case "underline":
match = AttrUnderline
case "reverse":
match = AttrReverse
}
result |= match
}
return result
}
// TextCells returns a coloured text cells []Cell
func TextCells(s string, fg, bg Attribute) []Cell {
cs := make([]Cell, 0, len(s))
// sequence := MarkdownTextRendererFactory{}.TextRenderer(s).Render(fg, bg)
// runes := []rune(sequence.NormalizedText)
runes := str2runes(s)
for n := range runes {
// point, _ := sequence.PointAt(n, 0, 0)
// cs = append(cs, Cell{point.Ch, point.Fg, point.Bg})
cs = append(cs, Cell{runes[n], fg, bg})
}
return cs
}
// Width returns the actual screen space the cell takes (usually 1 or 2).
func (c Cell) Width() int {
return charWidth(c.Ch)
}
// Copy return a copy of c
func (c Cell) Copy() Cell {
return c
}
// TrimTxCells trims the overflowed text cells sequence.
func TrimTxCells(cs []Cell, w int) []Cell {
if len(cs) <= w {
return cs
}
return cs[:w]
}
// DTrimTxCls trims the overflowed text cells sequence and append dots at the end.
func DTrimTxCls(cs []Cell, w int) []Cell {
l := len(cs)
if l <= 0 {
return []Cell{}
}
rt := make([]Cell, 0, w)
csw := 0
for i := 0; i < l && csw <= w; i++ {
c := cs[i]
cw := c.Width()
if cw+csw < w {
rt = append(rt, c)
csw += cw
} else {
rt = append(rt, Cell{'…', c.Fg, c.Bg})
break
}
}
return rt
}
func CellsToStr(cs []Cell) string {
str := ""
for _, c := range cs {
str += string(c.Ch)
}
return str
}
vendor/github.com/gizak/termui/linechart.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"fmt"
"math"
)
// only 16 possible combinations, why bother
var braillePatterns = map[[2]int]rune{
[2]int{0, 0}: '⣀',
[2]int{0, 1}: '⡠',
[2]int{0, 2}: '⡐',
[2]int{0, 3}: '⡈',
[2]int{1, 0}: '⢄',
[2]int{1, 1}: '⠤',
[2]int{1, 2}: '⠔',
[2]int{1, 3}: '⠌',
[2]int{2, 0}: '⢂',
[2]int{2, 1}: '⠢',
[2]int{2, 2}: '⠒',
[2]int{2, 3}: '⠊',
[2]int{3, 0}: '⢁',
[2]int{3, 1}: '⠡',
[2]int{3, 2}: '⠑',
[2]int{3, 3}: '⠉',
}
var lSingleBraille = [4]rune{'\u2840', '⠄', '⠂', '⠁'}
var rSingleBraille = [4]rune{'\u2880', '⠠', '⠐', '⠈'}
// LineChart has two modes: braille(default) and dot. Using braille gives 2x capicity as dot mode,
// because one braille char can represent two data points.
/*
lc := termui.NewLineChart()
lc.BorderLabel = "braille-mode Line Chart"
lc.Data = [1.2, 1.3, 1.5, 1.7, 1.5, 1.6, 1.8, 2.0]
lc.Width = 50
lc.Height = 12
lc.AxesColor = termui.ColorWhite
lc.LineColor = termui.ColorGreen | termui.AttrBold
// termui.Render(lc)...
*/
type LineChart struct {
Block
Data []float64
DataLabels []string // if unset, the data indices will be used
Mode string // braille | dot
DotStyle rune
LineColor Attribute
scale float64 // data span per cell on y-axis
AxesColor Attribute
drawingX int
drawingY int
axisYHeight int
axisXWidth int
axisYLabelGap int
axisXLabelGap int
topValue float64
bottomValue float64
labelX [][]rune
labelY [][]rune
labelYSpace int
maxY float64
minY float64
autoLabels bool
}
// NewLineChart returns a new LineChart with current theme.
func NewLineChart() *LineChart {
lc := &LineChart{Block: *NewBlock()}
lc.AxesColor = ThemeAttr("linechart.axes.fg")
lc.LineColor = ThemeAttr("linechart.line.fg")
lc.Mode = "braille"
lc.DotStyle = '•'
lc.axisXLabelGap = 2
lc.axisYLabelGap = 1
lc.bottomValue = math.Inf(1)
lc.topValue = math.Inf(-1)
return lc
}
// one cell contains two data points
// so the capicity is 2x as dot-mode
func (lc *LineChart) renderBraille() Buffer {
buf := NewBuffer()
// return: b -> which cell should the point be in
// m -> in the cell, divided into 4 equal height levels, which subcell?
getPos := func(d float64) (b, m int) {
cnt4 := int((d-lc.bottomValue)/(lc.scale/4) + 0.5)
b = cnt4 / 4
m = cnt4 % 4
return
}
// plot points
for i := 0; 2*i+1 < len(lc.Data) && i < lc.axisXWidth; i++ {
b0, m0 := getPos(lc.Data[2*i])
b1, m1 := getPos(lc.Data[2*i+1])
if b0 == b1 {
c := Cell{
Ch: braillePatterns[[2]int{m0, m1}],
Bg: lc.Bg,
Fg: lc.LineColor,
}
y := lc.innerArea.Min.Y + lc.innerArea.Dy() - 3 - b0
x := lc.innerArea.Min.X + lc.labelYSpace + 1 + i
buf.Set(x, y, c)
} else {
c0 := Cell{Ch: lSingleBraille[m0],
Fg: lc.LineColor,
Bg: lc.Bg}
x0 := lc.innerArea.Min.X + lc.labelYSpace + 1 + i
y0 := lc.innerArea.Min.Y + lc.innerArea.Dy() - 3 - b0
buf.Set(x0, y0, c0)
c1 := Cell{Ch: rSingleBraille[m1],
Fg: lc.LineColor,
Bg: lc.Bg}
x1 := lc.innerArea.Min.X + lc.labelYSpace + 1 + i
y1 := lc.innerArea.Min.Y + lc.innerArea.Dy() - 3 - b1
buf.Set(x1, y1, c1)
}
}
return buf
}
func (lc *LineChart) renderDot() Buffer {
buf := NewBuffer()
for i := 0; i < len(lc.Data) && i < lc.axisXWidth; i++ {
c := Cell{
Ch: lc.DotStyle,
Fg: lc.LineColor,
Bg: lc.Bg,
}
x := lc.innerArea.Min.X + lc.labelYSpace + 1 + i
y := lc.innerArea.Min.Y + lc.innerArea.Dy() - 3 - int((lc.Data[i]-lc.bottomValue)/lc.scale+0.5)
buf.Set(x, y, c)
}
return buf
}
func (lc *LineChart) calcLabelX() {
lc.labelX = [][]rune{}
for i, l := 0, 0; i < len(lc.DataLabels) && l < lc.axisXWidth; i++ {
if lc.Mode == "dot" {
if l >= len(lc.DataLabels) {
break
}
s := str2runes(lc.DataLabels[l])
w := strWidth(lc.DataLabels[l])
if l+w <= lc.axisXWidth {
lc.labelX = append(lc.labelX, s)
}
l += w + lc.axisXLabelGap
} else { // braille
if 2*l >= len(lc.DataLabels) {
break
}
s := str2runes(lc.DataLabels[2*l])
w := strWidth(lc.DataLabels[2*l])
if l+w <= lc.axisXWidth {
lc.labelX = append(lc.labelX, s)
}
l += w + lc.axisXLabelGap
}
}
}
func shortenFloatVal(x float64) string {
s := fmt.Sprintf("%.2f", x)
if len(s)-3 > 3 {
s = fmt.Sprintf("%.2e", x)
}
if x < 0 {
s = fmt.Sprintf("%.2f", x)
}
return s
}
func (lc *LineChart) calcLabelY() {
span := lc.topValue - lc.bottomValue
lc.scale = span / float64(lc.axisYHeight)
n := (1 + lc.axisYHeight) / (lc.axisYLabelGap + 1)
lc.labelY = make([][]rune, n)
maxLen := 0
for i := 0; i < n; i++ {
s := str2runes(shortenFloatVal(lc.bottomValue + float64(i)*span/float64(n)))
if len(s) > maxLen {
maxLen = len(s)
}
lc.labelY[i] = s
}
lc.labelYSpace = maxLen
}
func (lc *LineChart) calcLayout() {
// set datalabels if it is not provided
if (lc.DataLabels == nil || len(lc.DataLabels) == 0) || lc.autoLabels {
lc.autoLabels = true
lc.DataLabels = make([]string, len(lc.Data))
for i := range lc.Data {
lc.DataLabels[i] = fmt.Sprint(i)
}
}
// lazy increase, to avoid y shaking frequently
// update bound Y when drawing is gonna overflow
lc.minY = lc.Data[0]
lc.maxY = lc.Data[0]
// valid visible range
vrange := lc.innerArea.Dx()
if lc.Mode == "braille" {
vrange = 2 * lc.innerArea.Dx()
}
if vrange > len(lc.Data) {
vrange = len(lc.Data)
}
for _, v := range lc.Data[:vrange] {
if v > lc.maxY {
lc.maxY = v
}
if v < lc.minY {
lc.minY = v
}
}
span := lc.maxY - lc.minY
if lc.minY < lc.bottomValue {
lc.bottomValue = lc.minY - 0.2*span
}
if lc.maxY > lc.topValue {
lc.topValue = lc.maxY + 0.2*span
}
lc.axisYHeight = lc.innerArea.Dy() - 2
lc.calcLabelY()
lc.axisXWidth = lc.innerArea.Dx() - 1 - lc.labelYSpace
lc.calcLabelX()
lc.drawingX = lc.innerArea.Min.X + 1 + lc.labelYSpace
lc.drawingY = lc.innerArea.Min.Y
}
func (lc *LineChart) plotAxes() Buffer {
buf := NewBuffer()
origY := lc.innerArea.Min.Y + lc.innerArea.Dy() - 2
origX := lc.innerArea.Min.X + lc.labelYSpace
buf.Set(origX, origY, Cell{Ch: ORIGIN, Fg: lc.AxesColor, Bg: lc.Bg})
for x := origX + 1; x < origX+lc.axisXWidth; x++ {
buf.Set(x, origY, Cell{Ch: HDASH, Fg: lc.AxesColor, Bg: lc.Bg})
}
for dy := 1; dy <= lc.axisYHeight; dy++ {
buf.Set(origX, origY-dy, Cell{Ch: VDASH, Fg: lc.AxesColor, Bg: lc.Bg})
}
// x label
oft := 0
for _, rs := range lc.labelX {
if oft+len(rs) > lc.axisXWidth {
break
}
for j, r := range rs {
c := Cell{
Ch: r,
Fg: lc.AxesColor,
Bg: lc.Bg,
}
x := origX + oft + j
y := lc.innerArea.Min.Y + lc.innerArea.Dy() - 1
buf.Set(x, y, c)
}
oft += len(rs) + lc.axisXLabelGap
}
// y labels
for i, rs := range lc.labelY {
for j, r := range rs {
buf.Set(
lc.innerArea.Min.X+j,
origY-i*(lc.axisYLabelGap+1),
Cell{Ch: r, Fg: lc.AxesColor, Bg: lc.Bg})
}
}
return buf
}
// Buffer implements Bufferer interface.
func (lc *LineChart) Buffer() Buffer {
buf := lc.Block.Buffer()
if lc.Data == nil || len(lc.Data) == 0 {
return buf
}
lc.calcLayout()
buf.Merge(lc.plotAxes())
if lc.Mode == "dot" {
buf.Merge(lc.renderDot())
} else {
buf.Merge(lc.renderBraille())
}
return buf
}
vendor/github.com/gizak/termui/linechart_others.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
// +build !windows
package termui
const VDASH = '┊'
const HDASH = '┈'
const ORIGIN = '└'
vendor/github.com/gizak/termui/linechart_windows.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
// +build windows
package termui
const VDASH = '|'
const HDASH = '-'
const ORIGIN = '+'
vendor/github.com/gizak/termui/list.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import "strings"
// List displays []string as its items,
// it has a Overflow option (default is "hidden"), when set to "hidden",
// the item exceeding List's width is truncated, but when set to "wrap",
// the overflowed text breaks into next line.
/*
strs := []string{
"[0] github.com/gizak/termui",
"[1] editbox.go",
"[2] iterrupt.go",
"[3] keyboard.go",
"[4] output.go",
"[5] random_out.go",
"[6] dashboard.go",
"[7] nsf/termbox-go"}
ls := termui.NewList()
ls.Items = strs
ls.ItemFgColor = termui.ColorYellow
ls.BorderLabel = "List"
ls.Height = 7
ls.Width = 25
ls.Y = 0
*/
type List struct {
Block
Items []string
Overflow string
ItemFgColor Attribute
ItemBgColor Attribute
}
// NewList returns a new *List with current theme.
func NewList() *List {
l := &List{Block: *NewBlock()}
l.Overflow = "hidden"
l.ItemFgColor = ThemeAttr("list.item.fg")
l.ItemBgColor = ThemeAttr("list.item.bg")
return l
}
// Buffer implements Bufferer interface.
func (l *List) Buffer() Buffer {
buf := l.Block.Buffer()
switch l.Overflow {
case "wrap":
cs := DefaultTxBuilder.Build(strings.Join(l.Items, "\n"), l.ItemFgColor, l.ItemBgColor)
i, j, k := 0, 0, 0
for i < l.innerArea.Dy() && k < len(cs) {
w := cs[k].Width()
if cs[k].Ch == '\n' || j+w > l.innerArea.Dx() {
i++
j = 0
if cs[k].Ch == '\n' {
k++
}
continue
}
buf.Set(l.innerArea.Min.X+j, l.innerArea.Min.Y+i, cs[k])
k++
j++
}
case "hidden":
trimItems := l.Items
if len(trimItems) > l.innerArea.Dy() {
trimItems = trimItems[:l.innerArea.Dy()]
}
for i, v := range trimItems {
cs := DTrimTxCls(DefaultTxBuilder.Build(v, l.ItemFgColor, l.ItemBgColor), l.innerArea.Dx())
j := 0
for _, vv := range cs {
w := vv.Width()
buf.Set(l.innerArea.Min.X+j, l.innerArea.Min.Y+i, vv)
j += w
}
}
}
return buf
}
vendor/github.com/gizak/termui/mbarchart.go deleted 100644 → 0
View file @ 36f81118
// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"fmt"
)
// This is the implemetation of multi-colored or stacked bar graph. This is different from default barGraph which is implemented in bar.go
// Multi-Colored-BarChart creates multiple bars in a widget:
/*
bc := termui.NewMBarChart()
data := make([][]int, 2)
data[0] := []int{3, 2, 5, 7, 9, 4}
data[1] := []int{7, 8, 5, 3, 1, 6}
bclabels := []string{"S0", "S1", "S2", "S3", "S4", "S5"}
bc.BorderLabel = "Bar Chart"
bc.Data = data
bc.Width = 26
bc.Height = 10
bc.DataLabels = bclabels
bc.TextColor = termui.ColorGreen
bc.BarColor = termui.ColorRed
bc.NumColor = termui.ColorYellow
*/
type MBarChart struct {
Block
BarColor [NumberofColors]Attribute
TextColor Attribute
NumColor [NumberofColors]Attribute
Data [NumberofColors][]int
DataLabels []string
BarWidth int
BarGap int
labels [][]rune
dataNum [NumberofColors][][]rune
numBar int
scale float64
max int
minDataLen int
numStack int
ShowScale bool
maxScale []rune
}
// NewBarChart returns a new *BarChart with current theme.
func NewMBarChart() *MBarChart {
bc := &MBarChart{Block: *NewBlock()}
bc.BarColor[0] = ThemeAttr("mbarchart.bar.bg")
bc.NumColor[0] = ThemeAttr("mbarchart.num.fg")
bc.TextColor = ThemeAttr("mbarchart.text.fg")
bc.BarGap = 1
bc.BarWidth = 3
return bc
}
func (bc *MBarChart) layout() {
bc.numBar = bc.innerArea.Dx() / (bc.BarGap + bc.BarWidth)
bc.labels = make([][]rune, bc.numBar)
DataLen := 0
LabelLen := len(bc.DataLabels)
bc.minDataLen = 9999 //Set this to some very hight value so that we find the minimum one We want to know which array among data[][] has got the least length
// We need to know how many stack/data array data[0] , data[1] are there
for i := 0; i < len(bc.Data); i++ {
if bc.Data[i] == nil {
break
}
DataLen++
}
bc.numStack = DataLen
//We need to know what is the mimimum size of data array data[0] could have 10 elements data[1] could have only 5, so we plot only 5 bar graphs
for i := 0; i < DataLen; i++ {
if bc.minDataLen > len(bc.Data[i]) {
bc.minDataLen = len(bc.Data[i])
}
}
if LabelLen > bc.minDataLen {
LabelLen = bc.minDataLen
}
for i := 0; i < LabelLen && i < bc.numBar; i++ {
bc.labels[i] = trimStr2Runes(bc.DataLabels[i], bc.BarWidth)
}
for i := 0; i < bc.numStack; i++ {
bc.dataNum[i] = make([][]rune, len(bc.Data[i]))
//For each stack of bar calcualte the rune
for j := 0; j < LabelLen && i < bc.numBar; j++ {
n := bc.Data[i][j]
s := fmt.Sprint(n)
bc.dataNum[i][j] = trimStr2Runes(s, bc.BarWidth)
}
//If color is not defined by default then populate a color that is different from the prevous bar
if bc.BarColor[i] == ColorDefault && bc.NumColor[i] == ColorDefault {
if i == 0 {
bc.BarColor[i] = ColorBlack
} else {
bc.BarColor[i] = bc.BarColor[i-1] + 1
if bc.BarColor[i] > NumberofColors {
bc.BarColor[i] = ColorBlack
}
}
bc.NumColor[i] = (NumberofColors + 1) - bc.BarColor[i] //Make NumColor opposite of barColor for visibility
}
}
//If Max value is not set then we have to populate, this time the max value will be max(sum(d1[0],d2[0],d3[0]) .... sum(d1[n], d2[n], d3[n]))
if bc.max == 0 {
bc.max = -1
}
for i := 0; i < bc.minDataLen && i < LabelLen; i++ {
var dsum int
for j := 0; j < bc.numStack; j++ {
dsum += bc.Data[j][i]
}
if dsum > bc.max {
bc.max = dsum
}
}
//Finally Calculate max sale
if bc.ShowScale {
s := fmt.Sprintf("%d", bc.max)
bc.maxScale = trimStr2Runes(s, len(s))
bc.scale = float64(bc.max) / float64(bc.innerArea.Dy()-2)
} else {
bc.scale = float64(bc.max) / float64(bc.innerArea.Dy()-1)
}
}
func (bc *MBarChart) SetMax(max int) {
if max > 0 {
bc.max = max
}
}
// Buffer implements Bufferer interface.
func (bc *MBarChart) Buffer() Buffer {
buf := bc.Block.Buffer()
bc.layout()
var oftX int
for i := 0; i < bc.numBar && i < bc.minDataLen && i < len(bc.DataLabels); i++ {
ph := 0 //Previous Height to stack up
oftX = i * (bc.BarWidth + bc.BarGap)
for i1 := 0; i1 < bc.numStack; i1++ {
h := int(float64(bc.Data[i1][i]) / bc.scale)
// plot bars
for j := 0; j < bc.BarWidth; j++ {
for k := 0; k < h; k++ {
c := Cell{
Ch: ' ',
Bg: bc.BarColor[i1],
}
if bc.BarColor[i1] == ColorDefault { // when color is default, space char treated as transparent!
c.Bg |= AttrReverse
}
x := bc.innerArea.Min.X + i*(bc.BarWidth+bc.BarGap) + j
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2 - k - ph
buf.Set(x, y, c)
}
}
ph += h
}
// plot text
for j, k := 0, 0; j < len(bc.labels[i]); j++ {
w := charWidth(bc.labels[i][j])
c := Cell{
Ch: bc.labels[i][j],
Bg: bc.Bg,
Fg: bc.TextColor,
}
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 1
x := bc.innerArea.Max.X + oftX + ((bc.BarWidth - len(bc.labels[i])) / 2) + k
buf.Set(x, y, c)
k += w
}
// plot num
ph = 0 //re-initialize previous height
for i1 := 0; i1 < bc.numStack; i1++ {
h := int(float64(bc.Data[i1][i]) / bc.scale)
for j := 0; j < len(bc.dataNum[i1][i]) && h > 0; j++ {
c := Cell{
Ch: bc.dataNum[i1][i][j],
Fg: bc.NumColor[i1],
Bg: bc.BarColor[i1],
}
if bc.BarColor[i1] == ColorDefault { // the same as above
c.Bg |= AttrReverse
}
if h == 0 {
c.Bg = bc.Bg
}
x := bc.innerArea.Min.X + oftX + (bc.BarWidth-len(bc.dataNum[i1][i]))/2 + j
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2 - ph
buf.Set(x, y, c)
}
ph += h
}
}
if bc.ShowScale {
//Currently bar graph only supprts data range from 0 to MAX
//Plot 0
c := Cell{
Ch: '0',
Bg: bc.Bg,
Fg: bc.TextColor,
}
y := bc.innerArea.Min.Y + bc.innerArea.Dy() - 2
x := bc.X
buf.Set(x, y, c)
//Plot the maximum sacle value
for i := 0; i < len(bc.maxScale); i++ {
c := Cell{
Ch: bc.maxScale[i],
Bg: bc.Bg,
Fg: bc.TextColor,
}
y := bc.innerArea.Min.Y
x := bc.X + i
buf.Set(x, y, c)
}
}
return buf
}
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pages:
- Home: 'index.md'
- Quickstart: 'quickstart.md'
- Recipes: 'recipes.md'
- References:
- Layouts: 'layouts.md'
- Components: 'components.md'
- Events: 'events.md'
- Themes: 'themes.md'
- Versions: 'versions.md'
- About: 'about.md'
site_name: termui
repo_url: https://github.com/gizak/termui/
site_description: 'termui user guide'
site_author: gizak
docs_dir: '_docs'
theme: readthedocs
markdown_extensions:
- smarty
- admonition
- toc
extra:
version: 1.0
vendor/github.com/gizak/termui/par.go deleted 100644 → 0
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// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
// Par displays a paragraph.
/*
par := termui.NewPar("Simple Text")
par.Height = 3
par.Width = 17
par.BorderLabel = "Label"
*/
type Par struct {
Block
Text string
TextFgColor Attribute
TextBgColor Attribute
WrapLength int // words wrap limit. Note it may not work properly with multi-width char
}
// NewPar returns a new *Par with given text as its content.
func NewPar(s string) *Par {
return &Par{
Block: *NewBlock(),
Text: s,
TextFgColor: ThemeAttr("par.text.fg"),
TextBgColor: ThemeAttr("par.text.bg"),
WrapLength: 0,
}
}
// Buffer implements Bufferer interface.
func (p *Par) Buffer() Buffer {
buf := p.Block.Buffer()
fg, bg := p.TextFgColor, p.TextBgColor
cs := DefaultTxBuilder.Build(p.Text, fg, bg)
// wrap if WrapLength set
if p.WrapLength < 0 {
cs = wrapTx(cs, p.Width-2)
} else if p.WrapLength > 0 {
cs = wrapTx(cs, p.WrapLength)
}
y, x, n := 0, 0, 0
for y < p.innerArea.Dy() && n < len(cs) {
w := cs[n].Width()
if cs[n].Ch == '\n' || x+w > p.innerArea.Dx() {
y++
x = 0 // set x = 0
if cs[n].Ch == '\n' {
n++
}
if y >= p.innerArea.Dy() {
buf.Set(p.innerArea.Min.X+p.innerArea.Dx()-1,
p.innerArea.Min.Y+p.innerArea.Dy()-1,
Cell{Ch: '…', Fg: p.TextFgColor, Bg: p.TextBgColor})
break
}
continue
}
buf.Set(p.innerArea.Min.X+x, p.innerArea.Min.Y+y, cs[n])
n++
x += w
}
return buf
}
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// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import "image"
// Align is the position of the gauge's label.
type Align uint
// All supported positions.
const (
AlignNone Align = 0
AlignLeft Align = 1 << iota
AlignRight
AlignBottom
AlignTop
AlignCenterVertical
AlignCenterHorizontal
AlignCenter = AlignCenterVertical | AlignCenterHorizontal
)
func AlignArea(parent, child image.Rectangle, a Align) image.Rectangle {
w, h := child.Dx(), child.Dy()
// parent center
pcx, pcy := parent.Min.X+parent.Dx()/2, parent.Min.Y+parent.Dy()/2
// child center
ccx, ccy := child.Min.X+child.Dx()/2, child.Min.Y+child.Dy()/2
if a&AlignLeft == AlignLeft {
child.Min.X = parent.Min.X
child.Max.X = child.Min.X + w
}
if a&AlignRight == AlignRight {
child.Max.X = parent.Max.X
child.Min.X = child.Max.X - w
}
if a&AlignBottom == AlignBottom {
child.Max.Y = parent.Max.Y
child.Min.Y = child.Max.Y - h
}
if a&AlignTop == AlignRight {
child.Min.Y = parent.Min.Y
child.Max.Y = child.Min.Y + h
}
if a&AlignCenterHorizontal == AlignCenterHorizontal {
child.Min.X += pcx - ccx
child.Max.X = child.Min.X + w
}
if a&AlignCenterVertical == AlignCenterVertical {
child.Min.Y += pcy - ccy
child.Max.Y = child.Min.Y + h
}
return child
}
func MoveArea(a image.Rectangle, dx, dy int) image.Rectangle {
a.Min.X += dx
a.Max.X += dx
a.Min.Y += dy
a.Max.Y += dy
return a
}
var termWidth int
var termHeight int
func TermRect() image.Rectangle {
return image.Rect(0, 0, termWidth, termHeight)
}
vendor/github.com/gizak/termui/render.go deleted 100644 → 0
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// Copyright 2017 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
// Use of this source code is governed by a MIT license that can
// be found in the LICENSE file.
package termui
import (
"image"
"io"
"sync"
"time"
"fmt"
"os"
"runtime/debug"
"bytes"
"github.com/maruel/panicparse/stack"
tm "github.com/nsf/termbox-go"
)
// Bufferer should be implemented by all renderable components.
type Bufferer interface {
Buffer() Buffer
}
// Init initializes termui library. This function should be called before any others.
// After initialization, the library must be finalized by 'Close' function.
func Init() error {
if err := tm.Init(); err != nil {
return err
}
sysEvtChs = make([]chan Event, 0)
go hookTermboxEvt()
renderJobs = make(chan []Bufferer)
//renderLock = new(sync.RWMutex)
Body = NewGrid()
Body.X = 0
Body.Y = 0
Body.BgColor = ThemeAttr("bg")
Body.Width = TermWidth()
DefaultEvtStream.Init()
DefaultEvtStream.Merge("termbox", NewSysEvtCh())
DefaultEvtStream.Merge("timer", NewTimerCh(time.Second))
DefaultEvtStream.Merge("custom", usrEvtCh)
DefaultEvtStream.Handle("/", DefaultHandler)
DefaultEvtStream.Handle("/sys/wnd/resize", func(e Event) {
w := e.Data.(EvtWnd)
Body.Width = w.Width
})
DefaultWgtMgr = NewWgtMgr()
DefaultEvtStream.Hook(DefaultWgtMgr.WgtHandlersHook())
go func() {
for bs := range renderJobs {
render(bs...)
}
}()
return nil
}
// Close finalizes termui library,
// should be called after successful initialization when termui's functionality isn't required anymore.
func Close() {
tm.Close()
}
var renderLock sync.Mutex
func termSync() {
renderLock.Lock()
tm.Sync()
termWidth, termHeight = tm.Size()
renderLock.Unlock()
}
// TermWidth returns the current terminal's width.
func TermWidth() int {
termSync()
return termWidth
}
// TermHeight returns the current terminal's height.
func TermHeight() int {
termSync()
return termHeight
}
// Render renders all Bufferer in the given order from left to right,
// right could overlap on left ones.
func render(bs ...Bufferer) {
defer func() {
if e := recover(); e != nil {
Close()
fmt.Fprintf(os.Stderr, "Captured a panic(value=%v) when rendering Bufferer. Exit termui and clean terminal...\nPrint stack trace:\n\n", e)
//debug.PrintStack()
gs, err := stack.ParseDump(bytes.NewReader(debug.Stack()), os.Stderr)
if err != nil {
debug.PrintStack()
os.Exit(1)
}
p := &stack.Palette{}
buckets := stack.SortBuckets(stack.Bucketize(gs, stack.AnyValue))
srcLen, pkgLen := stack.CalcLengths(buckets, false)
for _, bucket := range buckets {
io.WriteString(os.Stdout, p.BucketHeader(&bucket, false, len(buckets) > 1))
io.WriteString(os.Stdout, p.StackLines(&bucket.Signature, srcLen, pkgLen, false))
}
os.Exit(1)
}
}()
for _, b := range bs {
buf := b.Buffer()
// set cels in buf
for p, c := range buf.CellMap {
if p.In(buf.Area) {
tm.SetCell(p.X, p.Y, c.Ch, toTmAttr(c.Fg), toTmAttr(c.Bg))
}
}
}
renderLock.Lock()
// render
tm.Flush()
renderLock.Unlock()
}
func Clear() {
tm.Clear(tm.ColorDefault, toTmAttr(ThemeAttr("bg")))
}
func clearArea(r image.Rectangle, bg Attribute) {
for i := r.Min.X; i < r.Max.X; i++ {
for j := r.Min.Y; j < r.Max.Y; j++ {
tm.SetCell(i, j, ' ', tm.ColorDefault, toTmAttr(bg))
}
}
}
func ClearArea(r image.Rectangle, bg Attribute) {
clearArea(r, bg)
tm.Flush()
}
var renderJobs chan []Bufferer
func Render(bs ...Bufferer) {
//go func() { renderJobs <- bs }()
renderJobs <- bs
}
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# Copyright 2014 Marc-Antoine Ruel. All rights reserved.
# Use of this source code is governed under the Apache License, Version 2.0
# that can be found in the LICENSE file.
sudo: false
language: go
go:
- tip
before_install:
- go get github.com/maruel/pre-commit-go/cmd/pcg
script:
- pcg
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vendors:
- path: github.com/kr/pretty
rev: 737b74a46c4bf788349f72cb256fed10aea4d0ac
- path: github.com/kr/text
rev: 7cafcd837844e784b526369c9bce262804aebc60
- path: github.com/maruel/ut
rev: a9c9f15ccfa6f8b90182a53df32f4745586fbae3
- path: github.com/mattn/go-colorable
rev: 9056b7a9f2d1f2d96498d6d146acd1f9d5ed3d59
- path: github.com/mattn/go-isatty
rev: 56b76bdf51f7708750eac80fa38b952bb9f32639
- path: github.com/mgutz/ansi
rev: c286dcecd19ff979eeb73ea444e479b903f2cfcb
- path: github.com/pmezard/go-difflib
rev: 792786c7400a136282c1664665ae0a8db921c6c2
- path: golang.org/x/sys
rev: a646d33e2ee3172a661fc09bca23bb4889a41bc8
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The MIT License (MIT)
Copyright (c) 2014 Mitchell Hashimoto
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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# Please keep this file sorted.
Georg Reinke <guelfey@googlemail.com>
nsf <no.smile.face@gmail.com>
vendor/github.com/nsf/termbox-go/LICENSE deleted 100644 → 0
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Copyright (C) 2012 termbox-go authors
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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