[templating] Add streamIsLive function

Signed-off-by: Knut Ahlers <knut@ahlers.me>

authMiddleware.go

@@ -5,6 +5,7 @@ import (
 	"encoding/base64"
 	"fmt"
 	"net/http"
+	"strings"
 
 	"github.com/gofrs/uuid/v3"
 	"github.com/pkg/errors"
@@ -51,7 +52,25 @@ func writeAuthMiddleware(h http.Handler, module string) http.Handler {
 			token = pass
 
 		case r.Header.Get("Authorization") != "":
-			token = r.Header.Get("Authorization")
+			var (
+				tokenType string
+				hadPrefix bool
+			)
+
+			tokenType, token, hadPrefix = strings.Cut(r.Header.Get("Authorization"), " ")
+			switch {
+			case !hadPrefix:
+				// Legacy: Accept `Authorization: tokenhere`
+				token = tokenType
+
+			case strings.EqualFold(tokenType, "token"):
+				// This is perfect: `Authorization: Token tokenhere`
+
+			default:
+				// That was unexpected: `Authorization: Bearer tokenhere` or similar
+				http.Error(w, "invalid token type", http.StatusForbidden)
+				return
+			}
 
 		default:
 			http.Error(w, "auth not successful", http.StatusForbidden)

docs/content/configuration/templating.md

@@ -467,7 +467,7 @@ Example:
 
 ```
 # Your int this hour: {{ printf "%.0f" (mulf (seededRandom (list "int" .username (now | date "2006-01-02 15") | join ":")) 100) }}%
-< Your int this hour: 82%
+< Your int this hour: 41%
 ```
 
 ### `spotifyCurrentPlaying`
@@ -500,6 +500,19 @@ Example:
 * https://open.spotify.com/track/3HCzXf0lNpekSqsGBcGrCd
 ```
 
+### `streamIsLive`
+
+Check whether a given channel is currently live
+
+Syntax: `streamIsLive <username>`
+
+Example:
+
+```
+# {{ streamIsLive "luziferus" }}
+* true
+```
+
 ### `streamUptime`
 
 Returns the duration the stream is online (causes an error if no current stream is found)

go.mod

@@ -6,7 +6,7 @@ toolchain go1.22.1
 
 require (
 	github.com/Luzifer/go-openssl/v4 v4.2.2
-	github.com/Luzifer/go_helpers/v2 v2.24.0
+	github.com/Luzifer/go_helpers/v2 v2.25.0
 	github.com/Luzifer/korvike/functions v1.0.1
 	github.com/Luzifer/rconfig/v2 v2.5.0
 	github.com/getsentry/sentry-go v0.27.0
@@ -25,9 +25,9 @@ require (
 	github.com/sirupsen/logrus v1.9.3
 	github.com/stretchr/testify v1.9.0
 	github.com/wzshiming/openapi v0.0.0-20200703171632-c7220b3c9cfb
-	golang.org/x/crypto v0.22.0
+	golang.org/x/crypto v0.23.0
-	golang.org/x/net v0.24.0
+	golang.org/x/net v0.25.0
-	golang.org/x/oauth2 v0.19.0
+	golang.org/x/oauth2 v0.20.0
 	gopkg.in/irc.v4 v4.0.0
 	gopkg.in/yaml.v3 v3.0.1
 	gorm.io/driver/mysql v1.5.6
@@ -45,20 +45,20 @@ require (
 	github.com/ProtonMail/go-crypto v1.0.0 // indirect
 	github.com/cenkalti/backoff/v3 v3.2.2 // indirect
 	github.com/cloudflare/circl v1.3.8 // indirect
-	github.com/cyphar/filepath-securejoin v0.2.4 // indirect
+	github.com/cyphar/filepath-securejoin v0.2.5 // indirect
 	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/glebarez/go-sqlite v1.22.0 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.5.0 // indirect
-	github.com/go-jose/go-jose/v4 v4.0.1 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
-	github.com/hashicorp/go-retryablehttp v0.7.5 // indirect
+	github.com/hashicorp/go-retryablehttp v0.7.6 // indirect
 	github.com/hashicorp/go-rootcerts v1.0.2 // indirect
 	github.com/hashicorp/go-secure-stdlib/parseutil v0.1.8 // indirect
 	github.com/hashicorp/go-secure-stdlib/strutil v0.1.2 // indirect
@@ -95,14 +95,14 @@ require (
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	golang.org/x/mod v0.17.0 // indirect
 	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.19.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
-	golang.org/x/text v0.14.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
 	golang.org/x/time v0.5.0 // indirect
 	golang.org/x/tools v0.20.0 // indirect
 	gopkg.in/validator.v2 v2.0.1 // indirect
 	gopkg.in/warnings.v0 v0.1.2 // indirect
-	modernc.org/libc v1.50.3 // indirect
+	modernc.org/libc v1.50.5 // indirect
 	modernc.org/mathutil v1.6.0 // indirect
 	modernc.org/memory v1.8.0 // indirect
-	modernc.org/sqlite v1.29.8 // indirect
+	modernc.org/sqlite v1.29.9 // indirect
 )

go.sum

@@ -6,6 +6,8 @@ github.com/Luzifer/go-openssl/v4 v4.2.2 h1:wKF/GhSKGJtHFQYTkN61wXig7mPvDj/oPpW6M
 github.com/Luzifer/go-openssl/v4 v4.2.2/go.mod h1:+kAwI4NpyYXoWil85gKSCEJNoCQlMeFikEMn2f+5ffc=
 github.com/Luzifer/go_helpers/v2 v2.24.0 h1:abACOhsn6a6c6X22jq42mZM1wuOM0Ihfa6yzssrjrOg=
 github.com/Luzifer/go_helpers/v2 v2.24.0/go.mod h1:KSVUdAJAav5cWGyB5oKGxmC27HrKULVTOxwPS/Kr+pc=
+github.com/Luzifer/go_helpers/v2 v2.25.0 h1:k1J4gd1+BfuokTDoWgcgib9P5mdadjzKEgbtKSVe46k=
+github.com/Luzifer/go_helpers/v2 v2.25.0/go.mod h1:KSVUdAJAav5cWGyB5oKGxmC27HrKULVTOxwPS/Kr+pc=
 github.com/Luzifer/korvike/functions v1.0.1 h1:9O9PQL7O8J3nBwR4XLyx4COC430QbnvueM+itA2HEto=
 github.com/Luzifer/korvike/functions v1.0.1/go.mod h1:8U01t/IM4wmZcaEf7u/szQrbLvBGMPOTLzJI/l7baWI=
 github.com/Luzifer/rconfig/v2 v2.5.0 h1:zx5lfQbNX3za4VegID97IeY+M+BmfgHxWJTYA94sxok=
@@ -34,6 +36,8 @@ github.com/cloudflare/circl v1.3.8 h1:j+V8jJt09PoeMFIu2uh5JUyEaIHTXVOHslFoLNAKqw
 github.com/cloudflare/circl v1.3.8/go.mod h1:PDRU+oXvdD7KCtgKxW95M5Z8BpSCJXQORiZFnBQS5QU=
 github.com/cyphar/filepath-securejoin v0.2.4 h1:Ugdm7cg7i6ZK6x3xDF1oEu1nfkyfH53EtKeQYTC3kyg=
 github.com/cyphar/filepath-securejoin v0.2.4/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
+github.com/cyphar/filepath-securejoin v0.2.5 h1:6iR5tXJ/e6tJZzzdMc1km3Sa7RRIVBKAK32O2s7AYfo=
+github.com/cyphar/filepath-securejoin v0.2.5/go.mod h1:aPGpWjXOXUn2NCNjFvBE6aRxGGx79pTxQpKOJNYHHl4=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
@@ -68,6 +72,8 @@ github.com/go-git/go-git/v5 v5.12.0 h1:7Md+ndsjrzZxbddRDZjF14qK+NN56sy6wkqaVrjZt
 github.com/go-git/go-git/v5 v5.12.0/go.mod h1:FTM9VKtnI2m65hNI/TenDDDnUf2Q9FHnXYjuz9i5OEY=
 github.com/go-jose/go-jose/v4 v4.0.1 h1:QVEPDE3OluqXBQZDcnNvQrInro2h0e4eqNbnZSWqS6U=
 github.com/go-jose/go-jose/v4 v4.0.1/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
+github.com/go-jose/go-jose/v4 v4.0.2 h1:R3l3kkBds16bO7ZFAEEcofK0MkrAJt3jlJznWZG0nvk=
+github.com/go-jose/go-jose/v4 v4.0.2/go.mod h1:WVf9LFMHh/QVrmqrOfqun0C45tMe3RoiKJMPvgWwLfY=
 github.com/go-sql-driver/mysql v1.7.0/go.mod h1:OXbVy3sEdcQ2Doequ6Z5BW6fXNQTmx+9S1MCJN5yJMI=
 github.com/go-sql-driver/mysql v1.8.1 h1:LedoTUt/eveggdHS9qUFC1EFSa8bU2+1pZjSRpvNJ1Y=
 github.com/go-sql-driver/mysql v1.8.1/go.mod h1:wEBSXgmK//2ZFJyE+qWnIsVGmvmEKlqwuVSjsCm7DZg=
@@ -102,6 +108,8 @@ github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+l
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
 github.com/hashicorp/go-retryablehttp v0.7.5 h1:bJj+Pj19UZMIweq/iie+1u5YCdGrnxCT9yvm0e+Nd5M=
 github.com/hashicorp/go-retryablehttp v0.7.5/go.mod h1:Jy/gPYAdjqffZ/yFGCFV2doI5wjtH1ewM9u8iYVjtX8=
+github.com/hashicorp/go-retryablehttp v0.7.6 h1:TwRYfx2z2C4cLbXmT8I5PgP/xmuqASDyiVuGYfs9GZM=
+github.com/hashicorp/go-retryablehttp v0.7.6/go.mod h1:pkQpWZeYWskR+D1tR2O5OcBFOxfA7DoAO6xtkuQnHTk=
 github.com/hashicorp/go-rootcerts v1.0.2 h1:jzhAVGtqPKbwpyCPELlgNWhE1znq+qwJtW5Oi2viEzc=
 github.com/hashicorp/go-rootcerts v1.0.2/go.mod h1:pqUvnprVnM5bf7AOirdbb01K4ccR319Vf4pU3K5EGc8=
 github.com/hashicorp/go-secure-stdlib/parseutil v0.1.8 h1:iBt4Ew4XEGLfh6/bPk4rSYmuZJGizr6/x/AEizP0CQc=
@@ -227,6 +235,8 @@ golang.org/x/crypto v0.3.1-0.20221117191849-2c476679df9a/go.mod h1:hebNnKkNXi2Uz
 golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU=
 golang.org/x/crypto v0.22.0 h1:g1v0xeRhjcugydODzvb3mEM9SQ0HGp9s/nh3COQ/C30=
 golang.org/x/crypto v0.22.0/go.mod h1:vr6Su+7cTlO45qkww3VDJlzDn0ctJvRgYbC2NvXHt+M=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
 golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
 golang.org/x/mod v0.8.0/go.mod h1:iBbtSCu2XBx23ZKBPSOrRkjjQPZFPuis4dIYUhu/chs=
 golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
@@ -240,8 +250,12 @@ golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 golang.org/x/net v0.24.0 h1:1PcaxkF854Fu3+lvBIx5SYn9wRlBzzcnHZSiaFFAb0w=
 golang.org/x/net v0.24.0/go.mod h1:2Q7sJY5mzlzWjKtYUEXSlBWCdyaioyXzRB2RtU8KVE8=
+golang.org/x/net v0.25.0 h1:d/OCCoBEUq33pjydKrGQhw7IlUPI2Oylr+8qLx49kac=
+golang.org/x/net v0.25.0/go.mod h1:JkAGAh7GEvH74S6FOH42FLoXpXbE/aqXSrIQjXgsiwM=
 golang.org/x/oauth2 v0.19.0 h1:9+E/EZBCbTLNrbN35fHv/a/d/mOBatymz1zbtQrXpIg=
 golang.org/x/oauth2 v0.19.0/go.mod h1:vYi7skDa1x015PmRRYZ7+s1cWyPgrPiSYRe4rnsexc8=
+golang.org/x/oauth2 v0.20.0 h1:4mQdhULixXKP1rwYBW0vAijoXnkTG0BLCDRzfe1idMo=
+golang.org/x/oauth2 v0.20.0/go.mod h1:XYTD2NtWslqkgxebSiOHnXEap4TF09sJSc7H1sXbhtI=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.1.0/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
@@ -262,6 +276,8 @@ golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.19.0 h1:q5f1RH2jigJ1MoAWp2KTp3gm5zAGFUTarQZ5U386+4o=
 golang.org/x/sys v0.19.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/term v0.2.0/go.mod h1:TVmDHMZPmdnySmBfhjOoOdhjzdE1h4u1VwSiw2l1Nuc=
@@ -269,6 +285,7 @@ golang.org/x/term v0.5.0/go.mod h1:jMB1sMXY+tzblOD4FWmEbocvup2/aLOaQEp7JmGp78k=
 golang.org/x/term v0.6.0/go.mod h1:m6U89DPEgQRMq3DNkDClhWw02AUbt2daBVO4cn4Hv9U=
 golang.org/x/term v0.19.0 h1:+ThwsDv+tYfnJFhF4L8jITxu1tdTWRTZpdsWgEgjL6Q=
 golang.org/x/term v0.19.0/go.mod h1:2CuTdWZ7KHSQwUzKva0cbMg6q2DMI3Mmxp+gKJbskEk=
+golang.org/x/term v0.20.0 h1:VnkxpohqXaOBYJtBmEppKUG6mXpi+4O6purfc2+sMhw=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
@@ -278,6 +295,8 @@ golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.8.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
+golang.org/x/text v0.15.0 h1:h1V/4gjBv8v9cjcR6+AR5+/cIYK5N/WAgiv4xlsEtAk=
+golang.org/x/text v0.15.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
 golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
@@ -316,12 +335,15 @@ modernc.org/cc/v4 v4.21.0 h1:D/gLKtcztomvWbsbvBKo3leKQv+86f+DdqEZBBXhnag=
 modernc.org/cc/v4 v4.21.0/go.mod h1:HM7VJTZbUCR3rV8EYBi9wxnJ0ZBRiGE5OeGXNA0IsLQ=
 modernc.org/ccgo/v4 v4.17.2 h1:rg8qg9Rxq7AtL29N0Ar5LyNmH/fQGV0LhphfcTJ5zRQ=
 modernc.org/ccgo/v4 v4.17.2/go.mod h1:1FCbAtWYJoKuc+AviS+dH+vGNtYmFJqBeRWjmnDWsIg=
+modernc.org/ccgo/v4 v4.17.3 h1:t2CQci84jnxKw3GGnHvjGKjiNZeZqyQx/023spkk4hU=
 modernc.org/fileutil v1.3.0 h1:gQ5SIzK3H9kdfai/5x41oQiKValumqNTDXMvKo62HvE=
 modernc.org/fileutil v1.3.0/go.mod h1:XatxS8fZi3pS8/hKG2GH/ArUogfxjpEKs3Ku3aK4JyQ=
 modernc.org/gc/v2 v2.4.1 h1:9cNzOqPyMJBvrUipmynX0ZohMhcxPtMccYgGOJdOiBw=
 modernc.org/gc/v2 v2.4.1/go.mod h1:wzN5dK1AzVGoH6XOzc3YZ+ey/jPgYHLuVckd62P0GYU=
 modernc.org/libc v1.50.3 h1:rxS4sOeGFzwiuDShZh0agxIRJnan/8vLsBomE50+OT4=
 modernc.org/libc v1.50.3/go.mod h1:ZkNjeLQOsIbpUQhrp7H6dQVuxXPsCZKjTb0/nE/jQjU=
+modernc.org/libc v1.50.5 h1:ZzeUd0dIc/sUtoPTCYIrgypkuzoGzNu6kbEWj2VuEmk=
+modernc.org/libc v1.50.5/go.mod h1:rhzrUx5oePTSTIzBgM0mTftwWHK8tiT9aNFUt1mldl0=
 modernc.org/mathutil v1.6.0 h1:fRe9+AmYlaej+64JsEEhoWuAYBkOtQiMEU7n/XgfYi4=
 modernc.org/mathutil v1.6.0/go.mod h1:Ui5Q9q1TR2gFm0AQRqQUaBWFLAhQpCwNcuhBOSedWPo=
 modernc.org/memory v1.8.0 h1:IqGTL6eFMaDZZhEWwcREgeMXYwmW83LYW8cROZYkg+E=
@@ -332,6 +354,8 @@ modernc.org/sortutil v1.2.0 h1:jQiD3PfS2REGJNzNCMMaLSp/wdMNieTbKX920Cqdgqc=
 modernc.org/sortutil v1.2.0/go.mod h1:TKU2s7kJMf1AE84OoiGppNHJwvB753OYfNl2WRb++Ss=
 modernc.org/sqlite v1.29.8 h1:nGKglNx9K5v0As+zF0/Gcl1kMkmaU1XynYyq92PbsC8=
 modernc.org/sqlite v1.29.8/go.mod h1:lQPm27iqa4UNZpmr4Aor0MH0HkCLbt1huYDfWylLZFk=
+modernc.org/sqlite v1.29.9 h1:9RhNMklxJs+1596GNuAX+O/6040bvOwacTxuFcRuQow=
+modernc.org/sqlite v1.29.9/go.mod h1:ItX2a1OVGgNsFh6Dv60JQvGfJfTPHPVpV6DF59akYOA=
 modernc.org/strutil v1.2.0 h1:agBi9dp1I+eOnxXeiZawM8F4LawKv4NzGWSaLfyeNZA=
 modernc.org/strutil v1.2.0/go.mod h1:/mdcBmfOibveCTBxUl5B5l6W+TTH1FXPLHZE6bTosX0=
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internal/template/twitch/stream.go

@@ -15,6 +15,7 @@ func init() {
 		regFn,
 		tplTwitchRecentGame,
 		tplTwitchRecentTitle,
+		tplTwitchStreamIsLive,
 		tplTwitchStreamUptime,
 	)
 }
@@ -55,6 +56,20 @@ func tplTwitchRecentTitle(args plugins.RegistrationArguments) {
 	})
 }
 
+func tplTwitchStreamIsLive(args plugins.RegistrationArguments) {
+	args.RegisterTemplateFunction("streamIsLive", plugins.GenericTemplateFunctionGetter(func(username string) bool {
+		_, err := args.GetTwitchClient().GetCurrentStreamInfo(context.Background(), strings.TrimLeft(username, "#"))
+		return err == nil
+	}), plugins.TemplateFuncDocumentation{
+		Description: "Check whether a given channel is currently live",
+		Syntax:      "streamIsLive <username>",
+		Example: &plugins.TemplateFuncDocumentationExample{
+			Template:    `{{ streamIsLive "luziferus" }}`,
+			FakedOutput: "true",
+		},
+	})
+}
+
 func tplTwitchStreamUptime(args plugins.RegistrationArguments) {
 	args.RegisterTemplateFunction("streamUptime", plugins.GenericTemplateFunctionGetter(func(username string) (time.Duration, error) {
 		si, err := args.GetTwitchClient().GetCurrentStreamInfo(context.Background(), strings.TrimLeft(username, "#"))