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2 Commits
f37425018b
...
0b032fccc9
| Author | SHA1 | Date |
|---|---|---|
 wpetit
|
0b032fccc9 | |
|
wpetit
|
fea0610346 |
2
Makefile
2
Makefile
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@ -132,7 +132,7 @@ tools/grafterm/bin/grafterm:
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GOBIN=$(PWD)/tools/grafterm/bin go install github.com/slok/grafterm/cmd/grafterm@v0.2.0
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bench:
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go test -bench=. -run '^$$' ./internal/bench
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go test -bench=. -run '^$$' -benchtime=10s ./internal/bench
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tools/benchstat/bin/benchstat:
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mkdir -p tools/benchstat/bin
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@ -27,8 +27,8 @@ Bouncer utilise le projet [`expr`](https://expr-lang.org/) comme DSL. En plus de
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Le comportement des règles par défaut est le suivant:
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1. L'ensemble des entêtes HTTP correspondant au patron `Remote-*` sont supprimés ;
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2. L'identifiant de l'utilisateur identifié (`user.subject`) est exporté sous la forme de l'entête HTTP `Remote-User` ;
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3. L'ensemble des attributs de l'utilisateur identifié (`user.attrs`) sont exportés sous la forme `Remote-User-Attr-<name>` où `<name>` est le nom de l'attribut en minuscule, avec les `_` transformés en `-`.
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2. L'identifiant de l'utilisateur identifié (`vars.user.subject`) est exporté sous la forme de l'entête HTTP `Remote-User` ;
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3. L'ensemble des attributs de l'utilisateur identifié (`vars.user.attrs`) sont exportés sous la forme `Remote-User-Attr-<name>` où `<name>` est le nom de l'attribut en minuscule, avec les `_` transformés en `-`.
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### Fonctions
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@ -36,25 +36,25 @@ Le comportement des règles par défaut est le suivant:
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Interdire l'accès à l'utilisateur.
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##### `add_header(name string, value string)`
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##### `add_header(ctx, name string, value string)`
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Ajouter une valeur à un entête HTTP via son nom `name` et sa valeur `value`.
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##### `set_header(name string, value string)`
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##### `set_header(ctx, name string, value string)`
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Définir la valeur d'un entête HTTP via son nom `name` et sa valeur `value`. La valeur précédente est écrasée.
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##### `del_headers(pattern string)`
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##### `del_headers(ctx, pattern string)`
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Supprimer un ou plusieurs entêtes HTTP dont le nom correspond au patron `pattern`.
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Le patron est défini par une chaîne comprenant un ou plusieurs caractères `*`, signifiant un ou plusieurs caractères arbitraires.
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##### `set_host(host string)`
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##### `set_host(ctx, host string)`
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Modifier la valeur de l'entête `Host` de la requête.
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##### `set_url(url string)`
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##### `set_url(ctx, url string)`
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Modifier l'URL du serveur cible.
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@ -62,7 +62,7 @@ Modifier l'URL du serveur cible.
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Les règles ont accès aux variables suivantes pendant leur exécution.
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#### `user`
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#### `vars.user`
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L'utilisateur identifié par le layer.
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@ -14,12 +14,12 @@ Les options disponibles pour le layer sont décrites via un [schéma JSON](https
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En plus de ces options spécifiques le layer peut également être configuré via [les options communes aux layers `authn-*`](../../../../../internal/proxy/director/layer/authn/layer-options.json).
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## Objet `user` et attributs
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## Objet `vars.user` et attributs
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L'objet `user` exposé au moteur de règles sera construit de la manière suivante:
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- `user.subject` sera initialisé avec le nom d'utilisateur identifié ;
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- `user.attrs` sera composé des attributs associés à l'utilisation (voir les options).
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- `vars.user.subject` sera initialisé avec le nom d'utilisateur identifié ;
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- `vars.user.attrs` sera composé des attributs associés à l'utilisation (voir les options).
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## Métriques
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@ -14,12 +14,12 @@ Les options disponibles pour le layer sont décrites via un [schéma JSON](https
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En plus de ces options spécifiques le layer peut également être configuré via [les options communes aux layers `authn-*`](../../../../../internal/proxy/director/layer/authn/layer-options.json).
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## Objet `user` et attributs
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## Objet `vars.user` et attributs
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L'objet `user` exposé au moteur de règles sera construit de la manière suivante:
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L'objet `vars.user` exposé au moteur de règles sera construit de la manière suivante:
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- `user.subject` sera initialisé avec le couple `<remote_address>:<remote_port>` ;
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- `user.attrs` sera vide.
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- `vars.user.subject` sera initialisé avec le couple `<remote_address>:<remote_port>` ;
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- `vars.user.attrs` sera vide.
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## Métriques
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|
|
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@ -16,18 +16,18 @@ Les options disponibles pour le layer sont décrites via un [schéma JSON](https
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En plus de ces options spécifiques le layer peut également être configuré via [les options communes aux layers `authn-*`](../../../../../internal/proxy/director/layer/authn/layer-options.json).
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## Objet `user` et attributs
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## Objet `vars.user` et attributs
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L'objet `user` exposé au moteur de règles sera construit de la manière suivante:
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L'objet `vars.user` exposé au moteur de règles sera construit de la manière suivante:
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- `user.subject` sera initialisé avec la valeur du [claim](https://openid.net/specs/openid-connect-core-1_0.html#Claims) `sub` extrait de l'`idToken` récupéré lors de l'authentification ;
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- `user.attrs` comportera les propriétés suivantes:
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- `vars.user.subject` sera initialisé avec la valeur du [claim](https://openid.net/specs/openid-connect-core-1_0.html#Claims) `sub` extrait de l'`idToken` récupéré lors de l'authentification ;
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- `vars.user.attrs` comportera les propriétés suivantes:
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- L'ensemble des `claims` provenant de l'`idToken` seront transposés en `claim_<name>` (ex: `idToken.iss` sera transposé en `user.attrs.claim_iss`) ;
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- `user.attrs.access_token`: le jeton d'accès associé à l'authentification ;
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- `user.attrs.refresh_token`: le jeton de rafraîchissement associé à l'authentification (si disponible, en fonction des `scopes` demandés par le client) ;
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- `user.attrs.token_expiry`: Horodatage Unix (en secondes) associé à la date d'expiration du jeton d'accès ;
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- `user.attrs.logout_url`: URL de déconnexion pour la suppression de la session Bouncer.
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- L'ensemble des `claims` provenant de l'`idToken` seront transposés en `claim_<name>` (ex: `idToken.iss` sera transposé en `vars.user.attrs.claim_iss`) ;
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- `vars.user.attrs.access_token`: le jeton d'accès associé à l'authentification ;
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- `vars.user.attrs.refresh_token`: le jeton de rafraîchissement associé à l'authentification (si disponible, en fonction des `scopes` demandés par le client) ;
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- `vars.user.attrs.token_expiry`: Horodatage Unix (en secondes) associé à la date d'expiration du jeton d'accès ;
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- `vars.user.attrs.logout_url`: URL de déconnexion pour la suppression de la session Bouncer.
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**Attention** Cette URL ne permet dans la plupart des cas que de supprimer la session côté Bouncer. La suppression de la session côté fournisseur d'identité est conditionné à la présence ou non de l'attribut [`end_session_endpoint`](https://openid.net/specs/openid-connect-session-1_0-17.html#OPMetadata) dans les données du point d'entrée de découverte de service (`.wellknown/openid-configuration`).
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@ -24,15 +24,15 @@ Bouncer utilise le projet [`expr`](https://expr-lang.org/) comme DSL. En plus de
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#### Communes
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##### `add_header(name string, value string)`
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##### `add_header(ctx, name string, value string)`
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Ajouter une valeur à un entête HTTP via son nom `name` et sa valeur `value`.
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##### `set_header(name string, value string)`
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##### `set_header(ctx, name string, value string)`
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Définir la valeur d'un entête HTTP via son nom `name` et sa valeur `value`. La valeur précédente est écrasée.
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##### `del_headers(pattern string)`
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##### `del_headers(ctx, pattern string)`
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Supprimer un ou plusieurs entêtes HTTP dont le nom correspond au patron `pattern`.
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@ -40,11 +40,11 @@ Le patron est défini par une chaîne comprenant un ou plusieurs caractères `*`
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#### Requête
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##### `set_host(host string)`
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##### `set_host(ctx, host string)`
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Modifier la valeur de l'entête `Host` de la requête.
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##### `set_url(url string)`
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##### `set_url(ctx, url string)`
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Modifier l'URL du serveur cible.
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@ -58,7 +58,28 @@ Les règles ont accès aux variables suivantes pendant leur exécution. **Ces do
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#### Requête
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##### `request`
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##### `vars.original_url`
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L'URL originale, avant réécriture du `Host` par Bouncer.
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```js
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{
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scheme: "string", // Schéma HTTP de l'URL
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opaque: "string", // Données opaque de l'URL
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user: { // Identifiants d'URL (Basic Auth)
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username: "",
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password: ""
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},
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host: "string", // Nom d'hôte (<domaine>:<port>) de l'URL
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path: "string", // Chemin de l'URL (format assaini)
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rawPath: "string", // Chemin de l'URL (format brut)
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raw_query: "string", // Variables d'URL (format brut)
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fragment : "string", // Fragment d'URL (format assaini)
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raw_fragment : "string" // Fragment d'URL (format brut)
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}
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```
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##### `vars.request`
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La requête en cours de traitement.
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@ -67,61 +88,65 @@ La requête en cours de traitement.
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method: "string", // Méthode HTTP
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host: "string", // Nom d'hôte (`Host`) associé à la requête
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url: { // URL associée à la requête sous sa forme structurée
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"scheme": "string", // Schéma HTTP de l'URL
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"opaque": "string", // Données opaque de l'URL
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"user": { // Identifiants d'URL (Basic Auth)
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"username": "",
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"password": ""
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scheme: "string", // Schéma HTTP de l'URL
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opaque: "string", // Données opaque de l'URL
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user: { // Identifiants d'URL (Basic Auth)
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username: "",
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password: ""
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},
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"host": "string", // Nom d'hôte (<domaine>:<port>) de l'URL
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"path": "string", // Chemin de l'URL (format assaini)
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"rawPath": "string", // Chemin de l'URL (format brut)
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"rawQuery": "string", // Variables d'URL (format brut)
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"fragment" : "string", // Fragment d'URL (format assaini)
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"rawFragment" : "string" // Fragment d'URL (format brut)
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host: "string", // Nom d'hôte (<domaine>:<port>) de l'URL
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path: "string", // Chemin de l'URL (format assaini)
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rawPath: "string", // Chemin de l'URL (format brut)
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raw_query: "string", // Variables d'URL (format brut)
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fragment : "string", // Fragment d'URL (format assaini)
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raw_fragment : "string" // Fragment d'URL (format brut)
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},
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rawUrl: "string", // URL associée à la requête (format assaini)
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raw_url: "string", // URL associée à la requête (format assaini)
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proto: "string", // Numéro de version du protocole utilisé
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protoMajor: "int", // Numéro de version majeure du protocole utilisé
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protoMinor: "int", // Numéro de version mineur du protocole utilisé
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proto_major: "int", // Numéro de version majeure du protocole utilisé
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proto_minor: "int", // Numéro de version mineur du protocole utilisé
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header: { // Table associative des entêtes HTTP associés à la requête
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"string": ["string"]
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},
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contentLength: "int", // Taille du corps de la requête
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transferEncoding: ["string"], // MIME-Type(s) d'encodage du corps de la requête
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content_length: "int", // Taille du corps de la requête
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transfer_encoding: ["string"], // MIME-Type(s) d'encodage du corps de la requête
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trailer: { // Table associative des entêtes HTTP associés à la requête, transmises après le corps de la requête
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"string": ["string"]
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},
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remoteAddr: "string", // Adresse du client HTTP à l'origine de la requête
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requestUri: "string" // URL "brute" associée à la requêtes (avant opérations d'assainissement, utiliser "url" plutôt)
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remote_addr: "string", // Adresse du client HTTP à l'origine de la requête
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request_uri: "string" // URL "brute" associée à la requêtes (avant opérations d'assainissement, utiliser "url" plutôt)
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}
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```
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#### Réponse
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##### `response`
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##### `vars.response`
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La réponse en cours de traitement.
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```js
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{
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statusCode: "int", // Code de statut de la réponse
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status_code: "int", // Code de statut de la réponse
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status: "string", // Message associé au code de statut
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proto: "string", // Numéro de version du protocole utilisé
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protoMajor: "int", // Numéro de version majeure du protocole utilisé
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protoMinor: "int", // Numéro de version mineur du protocole utilisé
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proto_major: "int", // Numéro de version majeure du protocole utilisé
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proto_minor: "int", // Numéro de version mineur du protocole utilisé
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header: { // Table associative des entêtes HTTP associés à la requête
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"string": ["string"]
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},
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contentLength: "int", // Taille du corps de la réponse
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transferEncoding: ["string"], // MIME-Type(s) d'encodage du corps de la requête
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content_length: "int", // Taille du corps de la réponse
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transfer_encoding: ["string"], // MIME-Type(s) d'encodage du corps de la requête
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trailer: { // Table associative des entêtes HTTP associés à la requête, transmises après le corps de la requête
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"string": ["string"]
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},
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}
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```
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##### `request`
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##### `vars.request`
|
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|
||||
_Voir section précédente._
|
||||
|
||||
##### `vars.original_url`
|
||||
|
||||
_Voir section précédente._
|
||||
|
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|
|
|
|||
|
|
@ -3,7 +3,6 @@ package proxy_test
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import (
|
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"context"
|
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"io"
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"log"
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"net/http"
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"net/http/httptest"
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"net/http/httputil"
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|
@ -24,6 +23,7 @@ import (
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redisStore "forge.cadoles.com/cadoles/bouncer/internal/store/redis"
|
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"github.com/pkg/errors"
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"github.com/redis/go-redis/v9"
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"gitlab.com/wpetit/goweb/logger"
|
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"gopkg.in/yaml.v3"
|
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|
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"forge.cadoles.com/cadoles/bouncer/internal/setup"
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|
@ -39,6 +39,19 @@ func BenchmarkProxies(b *testing.B) {
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|||
name := strings.TrimSuffix(filepath.Base(f), filepath.Ext(f))
|
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|
||||
b.Run(name, func(b *testing.B) {
|
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heap, err := os.Create(filepath.Join("testdata", "proxies", name+"_heap.prof"))
|
||||
if err != nil {
|
||||
b.Fatalf("%+v", errors.Wrapf(err, "could not create heap profile"))
|
||||
}
|
||||
|
||||
defer func() {
|
||||
defer heap.Close()
|
||||
|
||||
if err := pprof.WriteHeapProfile(heap); err != nil {
|
||||
b.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
}()
|
||||
|
||||
conf, err := loadProxyBenchConfig(f)
|
||||
if err != nil {
|
||||
b.Fatalf("%+v", errors.Wrapf(err, "could notre load bench config"))
|
||||
|
|
@ -78,7 +91,7 @@ func BenchmarkProxies(b *testing.B) {
|
|||
|
||||
b.Logf("fetching url '%s'", rawProxyURL)
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||||
|
||||
profile, err := os.Create(filepath.Join("testdata", "proxies", name+".prof"))
|
||||
profile, err := os.Create(filepath.Join("testdata", "proxies", name+"_cpu.prof"))
|
||||
if err != nil {
|
||||
b.Fatalf("%+v", errors.Wrapf(err, "could not create cpu profile"))
|
||||
}
|
||||
|
|
@ -86,7 +99,7 @@ func BenchmarkProxies(b *testing.B) {
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|||
defer profile.Close()
|
||||
|
||||
if err := pprof.StartCPUProfile(profile); err != nil {
|
||||
log.Fatal(err)
|
||||
b.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
defer pprof.StopCPUProfile()
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||||
|
|
@ -227,7 +240,12 @@ func createProxy(name string, conf *proxyBenchConfig, logf func(format string, a
|
|||
|
||||
}
|
||||
|
||||
layers, err := setup.GetLayers(context.Background(), config.NewDefault())
|
||||
appConf := config.NewDefault()
|
||||
appConf.Logger.Level = config.InterpolatedInt(logger.LevelError)
|
||||
appConf.Layers.Authn.TemplateDir = "../../layers/authn/templates"
|
||||
appConf.Layers.Queue.TemplateDir = "../../layers/queue/templates"
|
||||
|
||||
layers, err := setup.GetLayers(context.Background(), appConf)
|
||||
if err != nil {
|
||||
return nil, nil, errors.WithStack(err)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -12,7 +12,7 @@ proxy:
|
|||
attributes:
|
||||
email: foo@bar.com
|
||||
rules:
|
||||
- set_header("Remote-User-Attr-Email", user.attrs.email)
|
||||
- set_header(ctx, "Remote-User-Attr-Email", vars.user.attrs.email)
|
||||
fetch:
|
||||
url:
|
||||
user:
|
||||
|
|
|
|||
|
|
@ -0,0 +1,10 @@
|
|||
proxy:
|
||||
from: ["*"]
|
||||
to: ""
|
||||
layers:
|
||||
queue:
|
||||
type: queue
|
||||
enabled: true
|
||||
options:
|
||||
capacity: 100
|
||||
keepAlive: 10s
|
||||
|
|
@ -8,5 +8,5 @@ proxy:
|
|||
options:
|
||||
rules:
|
||||
request:
|
||||
- set_host(request.url.host)
|
||||
- set_header("X-Proxied-With", "bouncer")
|
||||
- set_host(ctx, vars.request.url.host)
|
||||
- set_header(ctx, "X-Proxied-With", "bouncer")
|
||||
|
|
|
|||
|
|
@ -4,14 +4,14 @@
|
|||
<h2>Incoming headers</h2>
|
||||
<table style="width: 100%">
|
||||
<thead>
|
||||
<tr>
|
||||
<tr style="text-align: left">
|
||||
<th>Key</th>
|
||||
<th>Value</th>
|
||||
</tr>
|
||||
</thead>
|
||||
<tbody>
|
||||
{{ range $key, $val := .Request.Header }}
|
||||
<tr>
|
||||
<tr style="text-align: left">
|
||||
<td>
|
||||
<b>{{ $key }}</b>
|
||||
</td>
|
||||
|
|
@ -27,7 +27,7 @@
|
|||
<h2>Incoming cookies</h2>
|
||||
<table style="width: 100%">
|
||||
<thead>
|
||||
<tr>
|
||||
<tr style="text-align: left">
|
||||
<th>Name</th>
|
||||
<th>Domain</th>
|
||||
<th>Path</th>
|
||||
|
|
@ -41,7 +41,7 @@
|
|||
</thead>
|
||||
<tbody>
|
||||
{{ range $cookie := .Request.Cookies }}
|
||||
<tr>
|
||||
<tr style="text-align: left">
|
||||
<td>
|
||||
<b>{{ $cookie.Name }}</b>
|
||||
</td>
|
||||
|
|
|
|||
|
|
@ -74,7 +74,7 @@ func (l *Layer) Middleware(layer *store.Layer) proxy.Middleware {
|
|||
return
|
||||
}
|
||||
|
||||
if err := l.applyRules(r, options, user); err != nil {
|
||||
if err := l.applyRules(ctx, r, options, user); err != nil {
|
||||
if errors.Is(err, ErrForbidden) {
|
||||
l.renderForbiddenPage(w, r, layer, options, user)
|
||||
return
|
||||
|
|
|
|||
|
|
@ -1,6 +1,7 @@
|
|||
package authn
|
||||
|
||||
import (
|
||||
"context"
|
||||
"net/http"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
|
|
@ -9,30 +10,32 @@ import (
|
|||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
type Env struct {
|
||||
type Vars struct {
|
||||
User *User `expr:"user"`
|
||||
}
|
||||
|
||||
func (l *Layer) applyRules(r *http.Request, options *LayerOptions, user *User) error {
|
||||
func (l *Layer) applyRules(ctx context.Context, r *http.Request, options *LayerOptions, user *User) error {
|
||||
rules := options.Rules
|
||||
if len(rules) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
engine, err := rule.NewEngine[*Env](
|
||||
engine, err := rule.NewEngine[*Vars](
|
||||
rule.WithRules(options.Rules...),
|
||||
rule.WithExpr(getAuthnAPI()...),
|
||||
ruleHTTP.WithRequestFuncs(r),
|
||||
ruleHTTP.WithRequestFuncs(),
|
||||
)
|
||||
if err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
env := &Env{
|
||||
vars := &Vars{
|
||||
User: user,
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(env); err != nil {
|
||||
ctx = ruleHTTP.WithRequest(ctx, r)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -6,6 +6,9 @@ import (
|
|||
proxy "forge.cadoles.com/Cadoles/go-proxy"
|
||||
"forge.cadoles.com/Cadoles/go-proxy/wildcard"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/proxy/director/layer/util"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
ruleHTTP "forge.cadoles.com/cadoles/bouncer/internal/rule/http"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/store"
|
||||
"github.com/pkg/errors"
|
||||
"gitlab.com/wpetit/goweb/logger"
|
||||
|
|
@ -13,7 +16,10 @@ import (
|
|||
|
||||
const LayerType store.LayerType = "rewriter"
|
||||
|
||||
type Layer struct{}
|
||||
type Layer struct {
|
||||
requestRuleEngine *util.RevisionedRuleEngine[*RequestVars, *LayerOptions]
|
||||
responseRuleEngine *util.RevisionedRuleEngine[*ResponseVars, *LayerOptions]
|
||||
}
|
||||
|
||||
func (l *Layer) LayerType() store.LayerType {
|
||||
return LayerType
|
||||
|
|
@ -39,7 +45,7 @@ func (l *Layer) Middleware(layer *store.Layer) proxy.Middleware {
|
|||
return
|
||||
}
|
||||
|
||||
if err := l.applyRequestRules(r, options); err != nil {
|
||||
if err := l.applyRequestRules(ctx, r, layer.Revision, options); err != nil {
|
||||
logger.Error(ctx, "could not apply request rules", logger.E(errors.WithStack(err)))
|
||||
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
|
||||
|
||||
|
|
@ -66,7 +72,9 @@ func (l *Layer) ResponseTransformer(layer *store.Layer) proxy.ResponseTransforme
|
|||
return nil
|
||||
}
|
||||
|
||||
if err := l.applyResponseRules(r, options); err != nil {
|
||||
ctx := r.Request.Context()
|
||||
|
||||
if err := l.applyResponseRules(ctx, r, layer.Revision, options); err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
|
|
@ -75,7 +83,30 @@ func (l *Layer) ResponseTransformer(layer *store.Layer) proxy.ResponseTransforme
|
|||
}
|
||||
|
||||
func New(funcs ...OptionFunc) *Layer {
|
||||
return &Layer{}
|
||||
return &Layer{
|
||||
requestRuleEngine: util.NewRevisionedRuleEngine(func(options *LayerOptions) (*rule.Engine[*RequestVars], error) {
|
||||
engine, err := rule.NewEngine[*RequestVars](
|
||||
rule.WithRules(options.Rules.Request...),
|
||||
ruleHTTP.WithRequestFuncs(),
|
||||
)
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
return engine, nil
|
||||
}),
|
||||
responseRuleEngine: util.NewRevisionedRuleEngine(func(options *LayerOptions) (*rule.Engine[*ResponseVars], error) {
|
||||
engine, err := rule.NewEngine[*ResponseVars](
|
||||
rule.WithRules(options.Rules.Response...),
|
||||
ruleHTTP.WithResponseFuncs(),
|
||||
)
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
return engine, nil
|
||||
}),
|
||||
}
|
||||
}
|
||||
|
||||
var (
|
||||
|
|
|
|||
|
|
@ -1,68 +1,93 @@
|
|||
package rewriter
|
||||
|
||||
import (
|
||||
"context"
|
||||
"net/http"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/proxy/director"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
ruleHTTP "forge.cadoles.com/cadoles/bouncer/internal/rule/http"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
type RequestEnv struct {
|
||||
Request RequestInfo `expr:"request"`
|
||||
type RequestVars struct {
|
||||
Request RequestVar `expr:"request"`
|
||||
OriginalURL URLVar `expr:"original_url"`
|
||||
}
|
||||
|
||||
type URLEnv struct {
|
||||
Scheme string `expr:"scheme"`
|
||||
Opaque string `expr:"opaque"`
|
||||
User UserInfoEnv `expr:"user"`
|
||||
Host string `expr:"host"`
|
||||
Path string `expr:"path"`
|
||||
RawPath string `expr:"rawPath"`
|
||||
RawQuery string `expr:"rawQuery"`
|
||||
Fragment string `expr:"fragment"`
|
||||
RawFragment string `expr:"rawFragment"`
|
||||
type URLVar struct {
|
||||
Scheme string `expr:"scheme"`
|
||||
Opaque string `expr:"opaque"`
|
||||
User UserVar `expr:"user"`
|
||||
Host string `expr:"host"`
|
||||
Path string `expr:"path"`
|
||||
RawPath string `expr:"raw_path"`
|
||||
RawQuery string `expr:"raw_query"`
|
||||
Fragment string `expr:"fragment"`
|
||||
RawFragment string `expr:"raw_fragment"`
|
||||
}
|
||||
|
||||
type UserInfoEnv struct {
|
||||
type UserVar struct {
|
||||
Username string `expr:"username"`
|
||||
Password string `expr:"password"`
|
||||
}
|
||||
|
||||
type RequestInfo struct {
|
||||
type RequestVar struct {
|
||||
Method string `expr:"method"`
|
||||
URL URLEnv `expr:"url"`
|
||||
RawURL string `expr:"rawUrl"`
|
||||
URL URLVar `expr:"url"`
|
||||
RawURL string `expr:"raw_url"`
|
||||
Proto string `expr:"proto"`
|
||||
ProtoMajor int `expr:"protoMajor"`
|
||||
ProtoMinor int `expr:"protoMinor"`
|
||||
ProtoMajor int `expr:"proto_major"`
|
||||
ProtoMinor int `expr:"proto_minor"`
|
||||
Header map[string][]string `expr:"header"`
|
||||
ContentLength int64 `expr:"contentLength"`
|
||||
TransferEncoding []string `expr:"transferEncoding"`
|
||||
ContentLength int64 `expr:"content_length"`
|
||||
TransferEncoding []string `expr:"transfer_encoding"`
|
||||
Host string `expr:"host"`
|
||||
Trailer map[string][]string `expr:"trailer"`
|
||||
RemoteAddr string `expr:"remoteAddr"`
|
||||
RequestURI string `expr:"requestUri"`
|
||||
RemoteAddr string `expr:"remote_addr"`
|
||||
RequestURI string `expr:"request_uri"`
|
||||
}
|
||||
|
||||
func (l *Layer) applyRequestRules(r *http.Request, options *LayerOptions) error {
|
||||
func (l *Layer) applyRequestRules(ctx context.Context, r *http.Request, layerRevision int, options *LayerOptions) error {
|
||||
rules := options.Rules.Request
|
||||
if len(rules) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
engine, err := l.getRequestRuleEngine(r, options)
|
||||
engine, err := l.getRequestRuleEngine(ctx, layerRevision, options)
|
||||
if err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
env := &RequestEnv{
|
||||
Request: RequestInfo{
|
||||
originalURL, err := director.OriginalURL(ctx)
|
||||
if err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
vars := &RequestVars{
|
||||
OriginalURL: URLVar{
|
||||
Scheme: originalURL.Scheme,
|
||||
Opaque: originalURL.Opaque,
|
||||
User: UserVar{
|
||||
Username: originalURL.User.Username(),
|
||||
Password: func() string {
|
||||
passwd, _ := originalURL.User.Password()
|
||||
return passwd
|
||||
}(),
|
||||
},
|
||||
Host: originalURL.Host,
|
||||
Path: originalURL.Path,
|
||||
RawPath: originalURL.RawPath,
|
||||
RawQuery: originalURL.RawQuery,
|
||||
Fragment: originalURL.Fragment,
|
||||
RawFragment: originalURL.RawFragment,
|
||||
},
|
||||
Request: RequestVar{
|
||||
Method: r.Method,
|
||||
URL: URLEnv{
|
||||
URL: URLVar{
|
||||
Scheme: r.URL.Scheme,
|
||||
Opaque: r.URL.Opaque,
|
||||
User: UserInfoEnv{
|
||||
User: UserVar{
|
||||
Username: r.URL.User.Username(),
|
||||
Password: func() string {
|
||||
passwd, _ := r.URL.User.Password()
|
||||
|
|
@ -90,18 +115,17 @@ func (l *Layer) applyRequestRules(r *http.Request, options *LayerOptions) error
|
|||
},
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(env); err != nil {
|
||||
ctx = ruleHTTP.WithRequest(ctx, r)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (l *Layer) getRequestRuleEngine(r *http.Request, options *LayerOptions) (*rule.Engine[*RequestEnv], error) {
|
||||
engine, err := rule.NewEngine[*RequestEnv](
|
||||
rule.WithRules(options.Rules.Request...),
|
||||
ruleHTTP.WithRequestFuncs(r),
|
||||
)
|
||||
func (l *Layer) getRequestRuleEngine(ctx context.Context, layerRevision int, options *LayerOptions) (*rule.Engine[*RequestVars], error) {
|
||||
engine, err := l.requestRuleEngine.Get(ctx, layerRevision, options)
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
|
@ -109,42 +133,65 @@ func (l *Layer) getRequestRuleEngine(r *http.Request, options *LayerOptions) (*r
|
|||
return engine, nil
|
||||
}
|
||||
|
||||
type ResponseEnv struct {
|
||||
Request RequestInfo `expr:"request"`
|
||||
Response ResponseInfo `expr:"response"`
|
||||
type ResponseVars struct {
|
||||
OriginalURL URLVar `expr:"original_url"`
|
||||
Request RequestVar `expr:"request"`
|
||||
Response ResponseVar `expr:"response"`
|
||||
}
|
||||
|
||||
type ResponseInfo struct {
|
||||
type ResponseVar struct {
|
||||
Status string `expr:"status"`
|
||||
StatusCode int `expr:"statusCode"`
|
||||
StatusCode int `expr:"status_code"`
|
||||
Proto string `expr:"proto"`
|
||||
ProtoMajor int `expr:"protoMajor"`
|
||||
ProtoMinor int `expr:"protoMinor"`
|
||||
ProtoMajor int `expr:"proto_major"`
|
||||
ProtoMinor int `expr:"proto_minor"`
|
||||
Header map[string][]string `expr:"header"`
|
||||
ContentLength int64 `expr:"contentLength"`
|
||||
TransferEncoding []string `expr:"transferEncoding"`
|
||||
ContentLength int64 `expr:"content_length"`
|
||||
TransferEncoding []string `expr:"transfer_encoding"`
|
||||
Uncompressed bool `expr:"uncompressed"`
|
||||
Trailer map[string][]string `expr:"trailer"`
|
||||
}
|
||||
|
||||
func (l *Layer) applyResponseRules(r *http.Response, options *LayerOptions) error {
|
||||
func (l *Layer) applyResponseRules(ctx context.Context, r *http.Response, layerRevision int, options *LayerOptions) error {
|
||||
rules := options.Rules.Response
|
||||
if len(rules) == 0 {
|
||||
return nil
|
||||
}
|
||||
|
||||
engine, err := l.getResponseRuleEngine(r, options)
|
||||
engine, err := l.getResponseRuleEngine(ctx, layerRevision, options)
|
||||
if err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
env := &ResponseEnv{
|
||||
Request: RequestInfo{
|
||||
originalURL, err := director.OriginalURL(ctx)
|
||||
if err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
vars := &ResponseVars{
|
||||
OriginalURL: URLVar{
|
||||
Scheme: originalURL.Scheme,
|
||||
Opaque: originalURL.Opaque,
|
||||
User: UserVar{
|
||||
Username: originalURL.User.Username(),
|
||||
Password: func() string {
|
||||
passwd, _ := originalURL.User.Password()
|
||||
return passwd
|
||||
}(),
|
||||
},
|
||||
Host: originalURL.Host,
|
||||
Path: originalURL.Path,
|
||||
RawPath: originalURL.RawPath,
|
||||
RawQuery: originalURL.RawQuery,
|
||||
Fragment: originalURL.Fragment,
|
||||
RawFragment: originalURL.RawFragment,
|
||||
},
|
||||
Request: RequestVar{
|
||||
Method: r.Request.Method,
|
||||
URL: URLEnv{
|
||||
URL: URLVar{
|
||||
Scheme: r.Request.URL.Scheme,
|
||||
Opaque: r.Request.URL.Opaque,
|
||||
User: UserInfoEnv{
|
||||
User: UserVar{
|
||||
Username: r.Request.URL.User.Username(),
|
||||
Password: func() string {
|
||||
passwd, _ := r.Request.URL.User.Password()
|
||||
|
|
@ -170,7 +217,7 @@ func (l *Layer) applyResponseRules(r *http.Response, options *LayerOptions) erro
|
|||
RemoteAddr: r.Request.RemoteAddr,
|
||||
RequestURI: r.Request.RequestURI,
|
||||
},
|
||||
Response: ResponseInfo{
|
||||
Response: ResponseVar{
|
||||
Proto: r.Proto,
|
||||
ProtoMajor: r.ProtoMajor,
|
||||
ProtoMinor: r.ProtoMinor,
|
||||
|
|
@ -183,18 +230,17 @@ func (l *Layer) applyResponseRules(r *http.Response, options *LayerOptions) erro
|
|||
},
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(env); err != nil {
|
||||
ctx = ruleHTTP.WithResponse(ctx, r)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
return errors.WithStack(err)
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func (l *Layer) getResponseRuleEngine(r *http.Response, options *LayerOptions) (*rule.Engine[*ResponseEnv], error) {
|
||||
engine, err := rule.NewEngine[*ResponseEnv](
|
||||
rule.WithRules(options.Rules.Response...),
|
||||
ruleHTTP.WithResponseFuncs(r),
|
||||
)
|
||||
func (l *Layer) getResponseRuleEngine(ctx context.Context, layerRevision int, options *LayerOptions) (*rule.Engine[*ResponseVars], error) {
|
||||
engine, err := l.responseRuleEngine.Get(ctx, layerRevision, options)
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,51 @@
|
|||
package util
|
||||
|
||||
import (
|
||||
"context"
|
||||
"sync"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/pkg/errors"
|
||||
"gitlab.com/wpetit/goweb/logger"
|
||||
)
|
||||
|
||||
type RuleEngineFactoryFunc[V any, O any] func(ops O) (*rule.Engine[V], error)
|
||||
|
||||
type RevisionedRuleEngine[V any, O any] struct {
|
||||
mutex sync.RWMutex
|
||||
revision int
|
||||
engine *rule.Engine[V]
|
||||
factory RuleEngineFactoryFunc[V, O]
|
||||
}
|
||||
|
||||
func (e *RevisionedRuleEngine[V, O]) Get(ctx context.Context, revision int, opts O) (*rule.Engine[V], error) {
|
||||
e.mutex.RLock()
|
||||
if revision == e.revision {
|
||||
logger.Debug(ctx, "using cached rule engine", logger.F("layerRevision", revision))
|
||||
|
||||
defer e.mutex.RUnlock()
|
||||
return e.engine, nil
|
||||
}
|
||||
e.mutex.RUnlock()
|
||||
|
||||
e.mutex.Lock()
|
||||
defer e.mutex.Unlock()
|
||||
|
||||
logger.Debug(ctx, "creating rule engine", logger.F("layerRevision", revision))
|
||||
|
||||
engine, err := e.factory(opts)
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
e.engine = engine
|
||||
e.revision = revision
|
||||
|
||||
return engine, nil
|
||||
}
|
||||
|
||||
func NewRevisionedRuleEngine[V any, O any](factory RuleEngineFactoryFunc[V, O]) *RevisionedRuleEngine[V, O] {
|
||||
return &RevisionedRuleEngine[V, O]{
|
||||
factory: factory,
|
||||
}
|
||||
}
|
||||
|
|
@ -1,16 +1,28 @@
|
|||
package rule
|
||||
|
||||
import (
|
||||
"context"
|
||||
|
||||
"github.com/expr-lang/expr"
|
||||
"github.com/expr-lang/expr/vm"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
type Engine[E any] struct {
|
||||
type Engine[V any] struct {
|
||||
rules []*vm.Program
|
||||
}
|
||||
|
||||
func (e *Engine[E]) Apply(env E) ([]any, error) {
|
||||
func (e *Engine[V]) Apply(ctx context.Context, vars V) ([]any, error) {
|
||||
type Env[V any] struct {
|
||||
Context context.Context `expr:"ctx"`
|
||||
Vars V `expr:"vars"`
|
||||
}
|
||||
|
||||
env := Env[V]{
|
||||
Context: ctx,
|
||||
Vars: vars,
|
||||
}
|
||||
|
||||
results := make([]any, 0, len(e.rules))
|
||||
for i, r := range e.rules {
|
||||
result, err := expr.Run(r, env)
|
||||
|
|
@ -42,3 +54,26 @@ func NewEngine[E any](funcs ...OptionFunc) (*Engine[E], error) {
|
|||
|
||||
return engine, nil
|
||||
}
|
||||
|
||||
func Context[T any](ctx context.Context, key any) (T, bool) {
|
||||
raw := ctx.Value(key)
|
||||
if raw == nil {
|
||||
return *new(T), false
|
||||
}
|
||||
|
||||
value, err := Assert[T](raw)
|
||||
if err != nil {
|
||||
return *new(T), false
|
||||
}
|
||||
|
||||
return value, true
|
||||
}
|
||||
|
||||
func Assert[T any](raw any) (T, error) {
|
||||
value, ok := raw.(T)
|
||||
if !ok {
|
||||
return *new(T), errors.Errorf("unexpected value '%T'", value)
|
||||
}
|
||||
|
||||
return value, nil
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,31 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"context"
|
||||
"net/http"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
)
|
||||
|
||||
type contextKey string
|
||||
|
||||
const (
|
||||
contextKeyRequest contextKey = "request"
|
||||
contextKeyResponse contextKey = "response"
|
||||
)
|
||||
|
||||
func WithRequest(ctx context.Context, r *http.Request) context.Context {
|
||||
return context.WithValue(ctx, contextKeyRequest, r)
|
||||
}
|
||||
|
||||
func WithResponse(ctx context.Context, r *http.Response) context.Context {
|
||||
return context.WithValue(ctx, contextKeyResponse, r)
|
||||
}
|
||||
|
||||
func ctxRequest(ctx context.Context) (*http.Request, bool) {
|
||||
return rule.Context[*http.Request](ctx, contextKeyRequest)
|
||||
}
|
||||
|
||||
func ctxResponse(ctx context.Context) (*http.Response, bool) {
|
||||
return rule.Context[*http.Response](ctx, contextKeyResponse)
|
||||
}
|
||||
|
|
@ -1,20 +1,18 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"net/http"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/expr-lang/expr"
|
||||
)
|
||||
|
||||
func WithRequestFuncs(r *http.Request) rule.OptionFunc {
|
||||
func WithRequestFuncs() rule.OptionFunc {
|
||||
return func(opts *rule.Options) {
|
||||
funcs := []expr.Option{
|
||||
setRequestURL(r),
|
||||
setRequestHeaderFunc(r),
|
||||
addRequestHeaderFunc(r),
|
||||
delRequestHeadersFunc(r),
|
||||
setRequestHostFunc(r),
|
||||
setRequestURLFunc(),
|
||||
setRequestHeaderFunc(),
|
||||
addRequestHeaderFunc(),
|
||||
delRequestHeadersFunc(),
|
||||
setRequestHostFunc(),
|
||||
}
|
||||
|
||||
if len(opts.Expr) == 0 {
|
||||
|
|
@ -25,12 +23,12 @@ func WithRequestFuncs(r *http.Request) rule.OptionFunc {
|
|||
}
|
||||
}
|
||||
|
||||
func WithResponseFuncs(r *http.Response) rule.OptionFunc {
|
||||
func WithResponseFuncs() rule.OptionFunc {
|
||||
return func(opts *rule.Options) {
|
||||
funcs := []expr.Option{
|
||||
setResponseHeaderFunc(r),
|
||||
addResponseHeaderFunc(r),
|
||||
delResponseHeadersFunc(r),
|
||||
setResponseHeaderFunc(),
|
||||
addResponseHeaderFunc(),
|
||||
delResponseHeadersFunc(),
|
||||
}
|
||||
|
||||
if len(opts.Expr) == 0 {
|
||||
|
|
|
|||
|
|
@ -1,109 +1,155 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"net/http"
|
||||
"net/url"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"forge.cadoles.com/Cadoles/go-proxy/wildcard"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/expr-lang/expr"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
func setRequestHostFunc(r *http.Request) expr.Option {
|
||||
func setRequestHostFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"set_host",
|
||||
func(params ...any) (any, error) {
|
||||
host := params[0].(string)
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
host, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
r, ok := ctxRequest(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http request in context")
|
||||
}
|
||||
|
||||
r.Host = host
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string) bool),
|
||||
new(func(context.Context, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func setRequestURL(r *http.Request) expr.Option {
|
||||
func setRequestURLFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"set_url",
|
||||
func(params ...any) (any, error) {
|
||||
rawURL := params[0].(string)
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
rawURL, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
url, err := url.Parse(rawURL)
|
||||
if err != nil {
|
||||
return false, errors.WithStack(err)
|
||||
}
|
||||
|
||||
r, ok := ctxRequest(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http request in context")
|
||||
}
|
||||
|
||||
r.URL = url
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string) bool),
|
||||
new(func(context.Context, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func addRequestHeaderFunc(r *http.Request) expr.Option {
|
||||
func addRequestHeaderFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"add_header",
|
||||
func(params ...any) (any, error) {
|
||||
name := params[0].(string)
|
||||
rawValue := params[1]
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
var value string
|
||||
switch v := rawValue.(type) {
|
||||
case []string:
|
||||
value = strings.Join(v, ",")
|
||||
case time.Time:
|
||||
value = strconv.FormatInt(v.UTC().Unix(), 10)
|
||||
case time.Duration:
|
||||
value = strconv.FormatInt(int64(v.Seconds()), 10)
|
||||
default:
|
||||
value = fmt.Sprintf("%v", rawValue)
|
||||
name, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
value := formatValue(params[2])
|
||||
|
||||
r, ok := ctxRequest(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http request in context")
|
||||
}
|
||||
|
||||
r.Header.Add(name, value)
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string, string) bool),
|
||||
new(func(context.Context, string, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func setRequestHeaderFunc(r *http.Request) expr.Option {
|
||||
func setRequestHeaderFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"set_header",
|
||||
func(params ...any) (any, error) {
|
||||
name := params[0].(string)
|
||||
rawValue := params[1]
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
var value string
|
||||
switch v := rawValue.(type) {
|
||||
case []string:
|
||||
value = strings.Join(v, ",")
|
||||
case time.Time:
|
||||
value = strconv.FormatInt(v.UTC().Unix(), 10)
|
||||
case time.Duration:
|
||||
value = strconv.FormatInt(int64(v.Seconds()), 10)
|
||||
default:
|
||||
value = fmt.Sprintf("%v", rawValue)
|
||||
name, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
value := formatValue(params[2])
|
||||
|
||||
r, ok := ctxRequest(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http request in context")
|
||||
}
|
||||
|
||||
r.Header.Set(name, value)
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string, string) bool),
|
||||
new(func(context.Context, string, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func delRequestHeadersFunc(r *http.Request) expr.Option {
|
||||
func delRequestHeadersFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"del_headers",
|
||||
func(params ...any) (any, error) {
|
||||
pattern := params[0].(string)
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
pattern, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
r, ok := ctxRequest(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http request in context")
|
||||
}
|
||||
|
||||
deleted := false
|
||||
|
||||
for key := range r.Header {
|
||||
|
|
@ -117,6 +163,21 @@ func delRequestHeadersFunc(r *http.Request) expr.Option {
|
|||
|
||||
return deleted, nil
|
||||
},
|
||||
new(func(string) bool),
|
||||
new(func(context.Context, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func formatValue(v any) string {
|
||||
var value string
|
||||
switch v := v.(type) {
|
||||
case []string:
|
||||
value = strings.Join(v, ",")
|
||||
case time.Time:
|
||||
value = strconv.FormatInt(v.UTC().Unix(), 10)
|
||||
case time.Duration:
|
||||
value = strconv.FormatInt(int64(v.Seconds()), 10)
|
||||
default:
|
||||
value = fmt.Sprintf("%v", v)
|
||||
}
|
||||
return value
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,195 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"context"
|
||||
"net/http"
|
||||
"testing"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
func TestSetRequestHost(t *testing.T) {
|
||||
type Vars struct {
|
||||
NewHost string `expr:"newHost"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(setRequestHostFunc()),
|
||||
rule.WithRules(
|
||||
"set_host(ctx, vars.newHost)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
ctx = WithRequest(ctx, req)
|
||||
|
||||
vars := Vars{
|
||||
NewHost: "foobar",
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.NewHost, req.Host; e != g {
|
||||
t.Errorf("req.Host: expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSetRequestURL(t *testing.T) {
|
||||
type Vars struct {
|
||||
NewURL string `expr:"newURL"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(setRequestURLFunc()),
|
||||
rule.WithRules(
|
||||
"set_url(ctx, vars.newURL)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
ctx = WithRequest(ctx, req)
|
||||
|
||||
vars := Vars{
|
||||
NewURL: "http://localhost",
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.NewURL, req.URL.String(); e != g {
|
||||
t.Errorf("req.URL.String(): expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestAddRequestHeader(t *testing.T) {
|
||||
type Vars struct {
|
||||
NewHeaderKey string `expr:"newHeaderKey"`
|
||||
NewHeaderValue string `expr:"newHeaderValue"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(addRequestHeaderFunc()),
|
||||
rule.WithRules(
|
||||
"add_header(ctx, vars.newHeaderKey, vars.newHeaderValue)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
ctx = WithRequest(ctx, req)
|
||||
|
||||
vars := Vars{
|
||||
NewHeaderKey: "X-My-Header",
|
||||
NewHeaderValue: "foobar",
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.NewHeaderValue, req.Header.Get(vars.NewHeaderKey); e != g {
|
||||
t.Errorf("req.Header.Get(vars.NewHeaderKey): expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestSetRequestHeader(t *testing.T) {
|
||||
type Vars struct {
|
||||
HeaderKey string `expr:"headerKey"`
|
||||
HeaderValue string `expr:"headerValue"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(setRequestHeaderFunc()),
|
||||
rule.WithRules(
|
||||
"set_header(ctx, vars.headerKey, vars.headerValue)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
vars := Vars{
|
||||
HeaderKey: "X-My-Header",
|
||||
HeaderValue: "foobar",
|
||||
}
|
||||
|
||||
req.Header.Set(vars.HeaderKey, "test")
|
||||
|
||||
ctx := context.Background()
|
||||
ctx = WithRequest(ctx, req)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.HeaderValue, req.Header.Get(vars.HeaderKey); e != g {
|
||||
t.Errorf("req.Header.Get(vars.HeaderKey): expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestDelRequestHeaders(t *testing.T) {
|
||||
type Vars struct {
|
||||
HeaderPattern string `expr:"headerPattern"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(delRequestHeadersFunc()),
|
||||
rule.WithRules(
|
||||
"del_headers(ctx, vars.headerPattern)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
vars := Vars{
|
||||
HeaderPattern: "X-My-*",
|
||||
}
|
||||
|
||||
req.Header.Set("X-My-Header", "test")
|
||||
|
||||
ctx := context.Background()
|
||||
ctx = WithRequest(ctx, req)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if val := req.Header.Get("X-My-Header"); val != "" {
|
||||
t.Errorf("req.Header.Get(\"X-My-Header\") should be empty, got '%v'", val)
|
||||
}
|
||||
}
|
||||
|
||||
func createRuleEngine[V any](t *testing.T, funcs ...rule.OptionFunc) *rule.Engine[V] {
|
||||
engine, err := rule.NewEngine[V](funcs...)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
return engine
|
||||
}
|
||||
|
|
@ -1,22 +1,33 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"net/http"
|
||||
"strconv"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"forge.cadoles.com/Cadoles/go-proxy/wildcard"
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/expr-lang/expr"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
func addResponseHeaderFunc(r *http.Response) expr.Option {
|
||||
func addResponseHeaderFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"add_header",
|
||||
func(params ...any) (any, error) {
|
||||
name := params[0].(string)
|
||||
rawValue := params[1]
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
name, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
rawValue := params[2]
|
||||
|
||||
var value string
|
||||
switch v := rawValue.(type) {
|
||||
|
|
@ -30,20 +41,34 @@ func addResponseHeaderFunc(r *http.Response) expr.Option {
|
|||
value = fmt.Sprintf("%v", rawValue)
|
||||
}
|
||||
|
||||
r, ok := ctxResponse(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http response in context")
|
||||
}
|
||||
|
||||
r.Header.Add(name, value)
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string, string) bool),
|
||||
new(func(context.Context, string, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func setResponseHeaderFunc(r *http.Response) expr.Option {
|
||||
func setResponseHeaderFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"set_header",
|
||||
func(params ...any) (any, error) {
|
||||
name := params[0].(string)
|
||||
rawValue := params[1]
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
name, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
rawValue := params[2]
|
||||
|
||||
var value string
|
||||
switch v := rawValue.(type) {
|
||||
|
|
@ -57,19 +82,38 @@ func setResponseHeaderFunc(r *http.Response) expr.Option {
|
|||
value = fmt.Sprintf("%v", rawValue)
|
||||
}
|
||||
|
||||
r, ok := ctxResponse(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http response in context")
|
||||
}
|
||||
|
||||
r.Header.Set(name, value)
|
||||
|
||||
return true, nil
|
||||
},
|
||||
new(func(string, string) bool),
|
||||
new(func(context.Context, string, string) bool),
|
||||
)
|
||||
}
|
||||
|
||||
func delResponseHeadersFunc(r *http.Response) expr.Option {
|
||||
func delResponseHeadersFunc() expr.Option {
|
||||
return expr.Function(
|
||||
"del_headers",
|
||||
func(params ...any) (any, error) {
|
||||
pattern := params[0].(string)
|
||||
ctx, err := rule.Assert[context.Context](params[0])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
pattern, err := rule.Assert[string](params[1])
|
||||
if err != nil {
|
||||
return nil, errors.WithStack(err)
|
||||
}
|
||||
|
||||
r, ok := ctxResponse(ctx)
|
||||
if !ok {
|
||||
return nil, errors.New("could not find http response in context")
|
||||
}
|
||||
|
||||
deleted := false
|
||||
|
||||
for key := range r.Header {
|
||||
|
|
@ -83,6 +127,6 @@ func delResponseHeadersFunc(r *http.Response) expr.Option {
|
|||
|
||||
return deleted, nil
|
||||
},
|
||||
new(func(string) bool),
|
||||
new(func(context.Context, string) bool),
|
||||
)
|
||||
}
|
||||
|
|
|
|||
|
|
@ -0,0 +1,139 @@
|
|||
package http
|
||||
|
||||
import (
|
||||
"context"
|
||||
"io"
|
||||
"net/http"
|
||||
"testing"
|
||||
|
||||
"forge.cadoles.com/cadoles/bouncer/internal/rule"
|
||||
"github.com/pkg/errors"
|
||||
)
|
||||
|
||||
func TestAddResponseHeader(t *testing.T) {
|
||||
type Vars struct {
|
||||
NewHeaderKey string `expr:"newHeaderKey"`
|
||||
NewHeaderValue string `expr:"newHeaderValue"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(addResponseHeaderFunc()),
|
||||
rule.WithRules(
|
||||
"add_header(ctx, vars.newHeaderKey, vars.newHeaderValue)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
resp := createResponse(req, http.StatusOK, nil)
|
||||
|
||||
ctx := context.Background()
|
||||
|
||||
ctx = WithResponse(ctx, resp)
|
||||
|
||||
vars := Vars{
|
||||
NewHeaderKey: "X-My-Header",
|
||||
NewHeaderValue: "foobar",
|
||||
}
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.NewHeaderValue, resp.Header.Get(vars.NewHeaderKey); e != g {
|
||||
t.Errorf("resp.Header.Get(vars.NewHeaderKey): expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestResponseSetHeader(t *testing.T) {
|
||||
type Vars struct {
|
||||
HeaderKey string `expr:"headerKey"`
|
||||
HeaderValue string `expr:"headerValue"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(setResponseHeaderFunc()),
|
||||
rule.WithRules(
|
||||
"set_header(ctx, vars.headerKey, vars.headerValue)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
resp := createResponse(req, http.StatusOK, nil)
|
||||
|
||||
vars := Vars{
|
||||
HeaderKey: "X-My-Header",
|
||||
HeaderValue: "foobar",
|
||||
}
|
||||
|
||||
resp.Header.Set(vars.HeaderKey, "test")
|
||||
|
||||
ctx := context.Background()
|
||||
ctx = WithResponse(ctx, resp)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if e, g := vars.HeaderValue, resp.Header.Get(vars.HeaderKey); e != g {
|
||||
t.Errorf("resp.Header.Get(vars.HeaderKey): expected '%v', got '%v'", e, g)
|
||||
}
|
||||
}
|
||||
|
||||
func TestResponseDelHeaders(t *testing.T) {
|
||||
type Vars struct {
|
||||
HeaderPattern string `expr:"headerPattern"`
|
||||
}
|
||||
|
||||
engine := createRuleEngine[Vars](t,
|
||||
rule.WithExpr(delResponseHeadersFunc()),
|
||||
rule.WithRules(
|
||||
"del_headers(ctx, vars.headerPattern)",
|
||||
),
|
||||
)
|
||||
|
||||
req, err := http.NewRequest("GET", "http://example.net", nil)
|
||||
if err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
resp := createResponse(req, http.StatusOK, nil)
|
||||
|
||||
vars := Vars{
|
||||
HeaderPattern: "X-My-*",
|
||||
}
|
||||
|
||||
resp.Header.Set("X-My-Header", "test")
|
||||
|
||||
ctx := context.Background()
|
||||
ctx = WithResponse(ctx, resp)
|
||||
|
||||
if _, err := engine.Apply(ctx, vars); err != nil {
|
||||
t.Fatalf("%+v", errors.WithStack(err))
|
||||
}
|
||||
|
||||
if val := resp.Header.Get("X-My-Header"); val != "" {
|
||||
t.Errorf("resp.Header.Get(\"X-My-Header\") should be empty, got '%v'", val)
|
||||
}
|
||||
}
|
||||
|
||||
func createResponse(req *http.Request, statusCode int, body io.Reader) *http.Response {
|
||||
return &http.Response{
|
||||
Status: http.StatusText(statusCode),
|
||||
StatusCode: statusCode,
|
||||
Proto: "HTTP/1.1",
|
||||
ProtoMajor: 1,
|
||||
ProtoMinor: 1,
|
||||
Body: io.NopCloser(body),
|
||||
ContentLength: -1,
|
||||
Request: req,
|
||||
Header: make(http.Header, 0),
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue