rnsrk/wisski-cloud-distillery
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Refactor html templates

Browse source 
This commit entirely refactors the use of html templates. Instead of
inheriting from a shared template, we insert the results into a base
template.
This commit is contained in:
Tom Wiesing 2023-01-20 14:42:37 +01:00
parent 6ede99d7c6
commit d235ee4e5c
No known key found for this signature in database
59 changed files with 869 additions and 777 deletions
Download patch file Download diff file Expand all files Collapse all files

4
internal/dis/component/auth/auth.go
View file

@ -5,7 +5,7 @@ import (
"net/http"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/sql"
"github.com/FAU-CDI/wisski-distillery/pkg/lazy"
"github.com/gorilla/sessions"
@ -17,7 +17,7 @@ type Auth struct {
Dependencies struct {
SQL *sql.SQL
UserDeleteHooks []component.UserDeleteHook
Templating *templates.Templating
Templating *templating.Templating
}
store lazy.Lazy[sessions.Store]

3
internal/dis/component/auth/login.html
View file

@ -1,5 +1,4 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Login Required{{ end }}
{{ template "form.html" . }}
{{ define "form/button" }}Login{{ end }}
{{ define "form/inside" }}
<div class="pure-form-group">

31
internal/dis/component/auth/panel/panel.go
View file

@ -9,7 +9,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth/next"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth/policy"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/ssh2/sshkeys"
"github.com/FAU-CDI/wisski-distillery/internal/models"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
@ -20,7 +20,7 @@ type UserPanel struct {
component.Base
Dependencies struct {
Auth *auth.Auth
Templating *templates.Templating
Templating *templating.Templating
Policy *policy.Policy
Instances *instances.Instances
Next *next.Next
@ -106,30 +106,25 @@ func (panel *UserPanel) HandleRoute(ctx context.Context, route string) (http.Han
}
type userFormContext struct {
templates.BaseContext
templating.RuntimeFlags
httpx.FormContext
User *models.User
}
func (panel *UserPanel) UserFormContext2(tpl *templates.Template[userFormContext], last component.MenuItem, gaps ...templates.BaseContextGaps) func(ctx httpx.FormContext, r *http.Request) any {
var g templates.BaseContextGaps
if len(gaps) > 1 {
panic("UserFormContext2: gaps must be of length 0 or 1")
}
if len(gaps) == 1 {
g = gaps[0]
}
g.Crumbs = []component.MenuItem{
{Title: "User", Path: "/user/"},
last,
}
func (panel *UserPanel) UserFormContext(tpl *templating.Template[userFormContext], last component.MenuItem, funcs ...templating.FlagFunc) func(ctx httpx.FormContext, r *http.Request) any {
funcs = append(funcs, func(flags templating.Flags, r *http.Request) templating.Flags {
flags.Crumbs = append(flags.Crumbs, component.MenuItem{})
copy(flags.Crumbs[1:], flags.Crumbs)
flags.Crumbs[0] = component.MenuItem{Title: "User", Path: "/user/"}
return flags
})
return templates.MappedHandler(tpl, func(ctx httpx.FormContext, r *http.Request) (userFormContext, templates.BaseContextGaps) {
return func(ctx httpx.FormContext, r *http.Request) any {
uctx := userFormContext{FormContext: ctx}
if user, err := panel.Dependencies.Auth.UserOf(r); err == nil {
uctx.User = &user.User
}
return uctx, g
})
return tpl.Context(r, uctx, funcs...)
}
}

11
internal/dis/component/auth/panel/password.go
View file

@ -9,14 +9,19 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
templating "github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx/field"
)
//go:embed "templates/password.html"
var passwordHTML []byte
var passwordTemplate = templating.Parse[userFormContext]("password.html", passwordHTML, assets.AssetsUser)
var passwordTemplate = templating.Parse[userFormContext](
"password.html", passwordHTML, httpx.FormTemplate,
templating.Title("Change Password"),
templating.Assets(assets.AssetsUser),
)
var (
errPasswordsNotIdentical = errors.New("passwords are not identical")
@ -40,7 +45,7 @@ func (panel *UserPanel) routePassword(ctx context.Context) http.Handler {
FieldTemplate: field.PureCSSFieldTemplate,
RenderTemplate: tpl.Template(),
RenderTemplateContext: panel.UserFormContext2(tpl, component.MenuItem{Title: "Change Password", Path: "/user/password/"}),
RenderTemplateContext: panel.UserFormContext(tpl, component.MenuItem{Title: "Change Password", Path: "/user/password/"}),
Validate: func(r *http.Request, values map[string]string) (struct{}, error) {
old, passcode, new, new2 := values["old"], values["otp"], values["new"], values["new2"]

53
internal/dis/component/auth/panel/ssh.go
View file

@ -8,7 +8,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/models"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx/field"
@ -22,10 +22,15 @@ import (
//go:embed "templates/ssh.html"
var sshHTML []byte
var sshTemplate = templates.Parse[SSHTemplateContext]("ssh.html", sshHTML, assets.AssetsUser)
var sshTemplate = templating.Parse[SSHTemplateContext](
"ssh.html", sshHTML, nil,
templating.Title("SSH Keys"),
templating.Assets(assets.AssetsUser),
)
type SSHTemplateContext struct {
templates.BaseContext
templating.RuntimeFlags
Keys []models.Keys
@ -37,15 +42,16 @@ type SSHTemplateContext struct {
}
func (panel *UserPanel) sshRoute(ctx context.Context) http.Handler {
tpl := sshTemplate.Prepare(panel.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "User", Path: "/user/"},
{Title: "SSH Keys", Path: "/user/ssh/"},
},
Actions: []component.MenuItem{
{Title: "Add New Key", Path: "/user/ssh/add/"},
},
})
tpl := sshTemplate.Prepare(
panel.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "User", Path: "/user/"},
component.MenuItem{Title: "SSH Keys", Path: "/user/ssh/"},
),
templating.Actions(
component.MenuItem{Title: "Add New Key", Path: "/user/ssh/add/"},
),
)
return tpl.HTMLHandler(func(r *http.Request) (sc SSHTemplateContext, err error) {
user, err := panel.Dependencies.Auth.UserOf(r)
@ -114,7 +120,11 @@ func (panel *UserPanel) sshDeleteRoute(ctx context.Context) http.Handler {
//go:embed "templates/ssh_add.html"
var sshAddHTML []byte
var sshAddTemplate = templates.ParseForm("ssh_add.html", sshAddHTML, assets.AssetsUser)
var sshAddTemplate = templating.ParseForm(
"ssh_add.html", sshAddHTML, httpx.FormTemplate,
templating.Title("Add SSH Key"),
templating.Assets(assets.AssetsUser),
)
type addKeyResult struct {
User *auth.AuthUser
@ -123,13 +133,14 @@ type addKeyResult struct {
}
func (panel *UserPanel) sshAddRoute(ctx context.Context) http.Handler {
tpl := sshAddTemplate.Prepare(panel.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "User", Path: "/user/"},
{Title: "SSH Keys", Path: "/user/ssh/"},
{Title: "Add New Key", Path: "/user/ssh/add/"},
},
})
tpl := sshAddTemplate.Prepare(
panel.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "User", Path: "/user/"},
component.MenuItem{Title: "SSH Keys", Path: "/user/ssh/"},
component.MenuItem{Title: "Add New Key", Path: "/user/ssh/add/"},
),
)
return &httpx.Form[addKeyResult]{
Fields: []field.Field{
@ -139,7 +150,7 @@ func (panel *UserPanel) sshAddRoute(ctx context.Context) http.Handler {
FieldTemplate: field.PureCSSFieldTemplate,
RenderTemplate: tpl.Template(),
RenderTemplateContext: templates.FormTemplateContext(tpl),
RenderTemplateContext: templating.FormTemplateContext(tpl),
Validate: func(r *http.Request, values map[string]string) (ak addKeyResult, err error) {
ak.User, err = panel.Dependencies.Auth.UserOf(r)

3
internal/dis/component/auth/panel/templates/password.html
View file

@ -1,3 +1,2 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Change Password{{ end }}
{{ template "form.html" . }}
{{ define "form/button" }}Update{{ end }}

6
internal/dis/component/auth/panel/templates/ssh.html
View file

@ -1,8 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}SSH Keys{{ end }}
{{ define "content" }}
<div class="pure-u-1">
<p>
This page allows you to add, view and remove ssh keys to and from your distillery account.
@ -101,4 +96,3 @@ Host {{ .Domain }}.proxy
</code>
</div>
</div>
{{ end }}

3
internal/dis/component/auth/panel/templates/ssh_add.html
View file

@ -1,7 +1,4 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Add SSH Key{{ end }}
{{ define "form/button" }}Add{{ end }}
{{ define "form/inside" }}
<div>
<p>

4
internal/dis/component/auth/panel/templates/totp_disable.html
View file

@ -1,5 +1,5 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Disable TOTP{{ end }}
{{ template "form.html" . }}
{{ define "form/button" }}Disable{{ end }}
{{ define "form/inside" }}

3
internal/dis/component/auth/panel/templates/totp_enable.html
View file

@ -1,5 +1,4 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Enable TOTP{{ end }}
{{ template "form.html" . }}
{{ define "form/button" }}Enable{{ end }}
{{ define "form/inside" }}
<div>

2
internal/dis/component/auth/panel/templates/totp_enroll.html
View file

@ -1,5 +1,3 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Enable TOTP{{ end }}
{{ define "form/button" }}Enable{{ end }}
{{ define "form/inside" }}
<div>

8
internal/dis/component/auth/panel/templates/user.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}{{ .User.User }}{{ end }}
{{ define "content" }}
<div class="pure-u-1">
<p>
<ul>
@ -79,6 +75,4 @@
</table>
</div>
</div>
</div>
{{ end }}
</div>

48
internal/dis/component/auth/panel/totp.go
View file

@ -8,7 +8,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx/field"
@ -17,7 +17,12 @@ import (
//go:embed "templates/totp_enable.html"
var totpEnableHTML []byte
var totpEnable = templates.Parse[userFormContext]("totp_enable.html", totpEnableHTML, assets.AssetsUser)
var totpEnable = templating.Parse[userFormContext](
"totp_enable.html", totpEnableHTML, httpx.FormTemplate,
templating.Title("Enable TOTP"),
templating.Assets(assets.AssetsUser),
)
func (panel *UserPanel) routeTOTPEnable(ctx context.Context) http.Handler {
tpl := totpEnable.Prepare(panel.Dependencies.Templating)
@ -34,7 +39,7 @@ func (panel *UserPanel) routeTOTPEnable(ctx context.Context) http.Handler {
},
RenderTemplate: tpl.Template(),
RenderTemplateContext: panel.UserFormContext2(tpl, component.MenuItem{Title: "Enable TOTP", Path: "/user/totp/enable/"}),
RenderTemplateContext: panel.UserFormContext(tpl, component.MenuItem{Title: "Enable TOTP", Path: "/user/totp/enable/"}),
Validate: func(r *http.Request, values map[string]string) (struct{}, error) {
password := values["password"]
@ -69,7 +74,12 @@ func (panel *UserPanel) routeTOTPEnable(ctx context.Context) http.Handler {
//go:embed "templates/totp_enroll.html"
var totpEnrollHTML []byte
var totpEnrollTemplate = templates.Parse[totpEnrollContext]("totp_enroll.html", totpEnrollHTML, assets.AssetsUser)
var totpEnrollTemplate = templating.Parse[totpEnrollContext](
"totp_enroll.html", totpEnrollHTML, httpx.FormTemplate,
templating.Title("Enable TOTP"),
templating.Assets(assets.AssetsUser),
)
type totpEnrollContext struct {
userFormContext
@ -80,12 +90,13 @@ type totpEnrollContext struct {
}
func (panel *UserPanel) routeTOTPEnroll(ctx context.Context) http.Handler {
tpl := totpEnrollTemplate.Prepare(panel.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "User", Path: "/user/"},
{Title: "Enable TOTP", Path: "/user/totp/enable/"},
},
})
tpl := totpEnrollTemplate.Prepare(
panel.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "User", Path: "/user/"},
component.MenuItem{Title: "Enable TOTP", Path: "/user/totp/enable/"},
),
)
return &httpx.Form[struct{}]{
Fields: []field.Field{
@ -98,9 +109,7 @@ func (panel *UserPanel) routeTOTPEnroll(ctx context.Context) http.Handler {
user, err := panel.Dependencies.Auth.UserOf(r)
return struct{}{}, err == nil && user != nil && user.IsTOTPEnabled()
},
RenderForm: func(context httpx.FormContext, w http.ResponseWriter, r *http.Request) {
// TODO: Do we want to reuse the same function here?
RenderTemplateContext: func(context httpx.FormContext, r *http.Request) any {
user, err := panel.Dependencies.Auth.UserOf(r)
ctx := totpEnrollContext{
@ -120,8 +129,10 @@ func (panel *UserPanel) routeTOTPEnroll(ctx context.Context) http.Handler {
ctx.TOTPURL = template.URL(secret.URL())
}
}
tpl.Execute(w, r, ctx)
return tpl.Context(r, ctx)
},
RenderTemplate: tpl.Template(),
Validate: func(r *http.Request, values map[string]string) (struct{}, error) {
password, otp := values["password"], values["otp"]
@ -156,7 +167,12 @@ func (panel *UserPanel) routeTOTPEnroll(ctx context.Context) http.Handler {
//go:embed "templates/totp_disable.html"
var totpDisableHTML []byte
var totpDisableTemplate = templates.Parse[userFormContext]("totp_disable.html", totpDisableHTML, assets.AssetsUser)
var totpDisableTemplate = templating.Parse[userFormContext](
"totp_disable.html", totpDisableHTML, httpx.FormTemplate,
templating.Title("Disable TOTP"),
templating.Assets(assets.AssetsUser),
)
func (panel *UserPanel) routeTOTPDisable(ctx context.Context) http.Handler {
tpl := totpDisableTemplate.Prepare(panel.Dependencies.Templating)
@ -173,7 +189,7 @@ func (panel *UserPanel) routeTOTPDisable(ctx context.Context) http.Handler {
return struct{}{}, err == nil && user != nil && !user.IsTOTPEnabled()
},
RenderTemplate: tpl.Template(),
RenderTemplateContext: panel.UserFormContext2(tpl, component.MenuItem{Title: "Disable TOTP", Path: "/user/totp/disable/"}),
RenderTemplateContext: panel.UserFormContext(tpl, component.MenuItem{Title: "Disable TOTP", Path: "/user/totp/disable/"}),
Validate: func(r *http.Request, values map[string]string) (struct{}, error) {
password, otp := values["password"], values["otp"]

52
internal/dis/component/auth/panel/user.go
View file

@ -10,16 +10,20 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/models"
)
//go:embed "templates/user.html"
var userHTML []byte
var userTemplate = templates.Parse[userContext]("user.html", userHTML, assets.AssetsUser)
var userTemplate = templating.Parse[userContext](
"user.html", userHTML, nil,
templating.Assets(assets.AssetsUser),
)
type userContext struct {
templates.BaseContext
templating.RuntimeFlags
*auth.AuthUser
Grants []GrantWithURL
@ -31,41 +35,47 @@ type GrantWithURL struct {
}
func (panel *UserPanel) routeUser(ctx context.Context) http.Handler {
tpl := userTemplate.Prepare(panel.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "User", Path: "/user/"},
},
Actions: []component.MenuItem{
{Title: "Change Password", Path: "/user/password/"},
{Title: "*to be replaced*", Path: ""},
{Title: "SSH Keys", Path: "/user/ssh/"},
},
})
tpl := userTemplate.Prepare(
panel.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "User", Path: "/user/"},
),
templating.Actions(
component.MenuItem{Title: "Change Password", Path: "/user/password/"},
component.DummyMenuItem,
component.MenuItem{Title: "SSH Keys", Path: "/user/ssh/"},
),
)
return tpl.HTMLHandlerWithGaps(func(r *http.Request, gaps *templates.BaseContextGaps) (uc userContext, err error) {
return tpl.HTMLHandlerWithFlags(func(r *http.Request) (uc userContext, funcs []templating.FlagFunc, err error) {
// find the user
uc.AuthUser, err = panel.Dependencies.Auth.UserOf(r)
if err != nil || uc.AuthUser == nil {
return uc, err
return uc, nil, err
}
// build the gaps
// replace the totp action in the menu
var totpAction component.MenuItem
if uc.AuthUser.IsTOTPEnabled() {
gaps.Actions[1] = component.MenuItem{
totpAction = component.MenuItem{
Title: "Disable Passcode (TOTP)",
Path: "/user/totp/disable/",
}
} else {
gaps.Actions[1] = component.MenuItem{
totpAction = component.MenuItem{
Title: "Enable Passcode (TOTP)",
Path: "/user/totp/enable/",
}
}
funcs = []templating.FlagFunc{
templating.ReplaceAction(1, totpAction),
templating.Title(uc.AuthUser.User.User),
}
// find the grants
grants, err := panel.Dependencies.Policy.User(r.Context(), uc.AuthUser.User.User)
if err != nil {
return uc, err
return uc, nil, err
}
uc.Grants = make([]GrantWithURL, len(grants))
@ -74,11 +84,11 @@ func (panel *UserPanel) routeUser(ctx context.Context) http.Handler {
url, err := panel.Dependencies.Next.Next(r.Context(), grant.Slug, "/")
if err != nil {
return uc, err
return uc, nil, err
}
uc.Grants[i].URL = template.URL(url)
}
return uc, err
return uc, funcs, err
})
}

32
internal/dis/component/auth/session.go
View file

@ -9,7 +9,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx/field"
"github.com/gorilla/sessions"
@ -120,7 +120,12 @@ func (auth *Auth) Logout(w http.ResponseWriter, r *http.Request) error {
//go:embed "login.html"
var loginHTML []byte
var loginTemplate = templates.ParseForm("login.html", loginHTML, assets.AssetsUser)
var loginTemplate = templating.ParseForm(
"login.html", loginHTML, httpx.FormTemplate,
templating.Title("Login Required"),
templating.Assets(assets.AssetsUser),
)
var loginResponse = httpx.Response{
ContentType: "text/plain",
@ -131,7 +136,15 @@ var errLoginFailed = errors.New("Login failed")
// authLogin implements a view to login a user
func (auth *Auth) authLogin(ctx context.Context) http.Handler {
tpl := loginTemplate.Prepare(auth.Dependencies.Templating)
tpl := loginTemplate.Prepare(
auth.Dependencies.Templating,
func(flags templating.Flags, r *http.Request) templating.Flags {
flags.Crumbs = []component.MenuItem{
{Title: "Login", Path: template.URL(r.URL.RequestURI())},
}
return flags
},
)
return &httpx.Form[*AuthUser]{
Fields: []field.Field{
@ -141,16 +154,13 @@ func (auth *Auth) authLogin(ctx context.Context) http.Handler {
},
FieldTemplate: field.PureCSSFieldTemplate,
RenderForm: func(context httpx.FormContext, w http.ResponseWriter, r *http.Request) {
if context.Err != nil {
context.Err = errLoginFailed
RenderTemplateContext: func(ctx httpx.FormContext, r *http.Request) any {
if ctx.Err != nil {
ctx.Err = errLoginFailed
}
tpl.Execute(w, r, templates.BaseFormContext{FormContext: context}, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Login", Path: template.URL(r.URL.RequestURI())},
},
})
return tpl.Context(r, templating.NewFormContext(ctx))
},
RenderTemplate: tpl.Template(),
Validate: func(r *http.Request, values map[string]string) (*AuthUser, error) {
username, password, passcode := values["username"], values["password"], values["otp"]

6
internal/dis/component/menu.go
View file

@ -19,6 +19,12 @@ type MenuItem struct {
Priority MenuPriority // menu priority
}
// DummyMenuItem is a dummy menu item
// It should be replaced before being displayed to the user
var DummyMenuItem = MenuItem{
Title: "* to be replaced *",
}
func MenuItemSort(a, b MenuItem) bool {
return a.Priority < b.Priority
}

69
internal/dis/component/resolver/resolver.go
View file

@ -13,7 +13,8 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/lazy"
"github.com/rs/zerolog"
@ -24,7 +25,7 @@ type Resolver struct {
component.Base
Dependencies struct {
Instances *instances.Instances
Templating *templates.Templating
Templating *templating.Templating
Auth *auth.Auth
}
@ -50,36 +51,30 @@ func (resolver *Resolver) Routes() component.Routes {
//go:embed "resolver.html"
var resolverHTML []byte
var resolverTemplate = templates.Parse[resolverContext]("resolver.html", resolverHTML, assets.AssetsDefault)
var resolverTemplate = templating.Parse[resolverContext](
"resolver.html", resolverHTML, nil,
templating.Title("Resolver"),
templating.Assets(assets.AssetsDefault),
)
type resolverContext struct {
templates.BaseContext
templating.RuntimeFlags
wdresolve.IndexContext
}
func (resolver *Resolver) HandleRoute(ctx context.Context, route string) (http.Handler, error) {
tpl := resolverTemplate.Prepare(resolver.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Resolver", Path: "/wisski/get/"},
},
})
// get the resolver template
tpl := resolverTemplate.Prepare(
resolver.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Resolver", Path: "/wisski/get/"},
),
)
t := tpl.Template()
// extract a logger and the fallback
logger := zerolog.Ctx(ctx)
var p wdresolve.ResolveHandler
var err error
p.HandleIndex = func(context wdresolve.IndexContext, w http.ResponseWriter, r *http.Request) {
ctx := resolverContext{
IndexContext: context,
}
if !resolver.Dependencies.Auth.Has(auth.User, r) {
ctx.IndexContext.Prefixes = nil
}
tpl.Execute(w, r, ctx)
}
p.TrustXForwardedProto = true
fallback := &resolvers.Regexp{
Data: map[string]string{},
}
@ -97,12 +92,26 @@ func (resolver *Resolver) HandleRoute(ctx context.Context, route string) (http.H
logger.Info().Str("name", domainName).Msg("registering legacy domain")
}
// resolve the prefixes
p.Resolver = resolvers.InOrder{
resolver,
fallback,
p := wdresolve.ResolveHandler{
HandleIndex: func(context wdresolve.IndexContext, w http.ResponseWriter, r *http.Request) {
ctx := resolverContext{
IndexContext: context,
}
if !resolver.Dependencies.Auth.Has(auth.User, r) {
ctx.IndexContext.Prefixes = nil
}
httpx.WriteHTML(tpl.Context(r, ctx), nil, t, "", w, r)
},
Resolver: resolvers.InOrder{
resolver,
fallback,
},
TrustXForwardedProto: true,
}
return p, err
return p, nil
}
func (resolver *Resolver) Target(uri string) string {

5
internal/dis/component/resolver/resolver.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}Resolver{{ end }}
{{ define "content" }}
<div class="pure-u-1">
<p>
This page contains the global distillery resolver.
@ -62,4 +58,3 @@
</div>
</div>
{{ end }}
{{ end }}

4
internal/dis/component/server/admin/admin.go
View file

@ -10,7 +10,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/exporter"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/exporter/logger"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances/purger"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/julienschmidt/httprouter"
"github.com/rs/zerolog"
@ -32,7 +32,7 @@ type Admin struct {
Policy *policy.Policy
Templating *templates.Templating
Templating *templating.Templating
Purger *purger.Purger
}

78
internal/dis/component/server/admin/components.go
View file

@ -10,75 +10,71 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/models"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/lazy"
"github.com/julienschmidt/httprouter"
)
//go:embed "html/components.html"
var componentsHTML []byte
var componentsTemplate = templates.Parse[componentContext]("components.html", componentsHTML, assets.AssetsAdmin)
//go:embed "html/anal.html"
var analHTML []byte
var analTemplate = templating.Parse[analContext](
"anal.html", analHTML, nil,
type componentContext struct {
templates.BaseContext
templating.Assets(assets.AssetsAdmin),
)
type analContext struct {
templating.RuntimeFlags
Analytics lazy.PoolAnalytics
}
func (admin *Admin) components(ctx context.Context) http.Handler {
tpl := componentsTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Components", Path: "/admin/components/"},
},
})
tpl := analTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.MenuItem{Title: "Components", Path: "/admin/components/"},
),
templating.Title("Components"),
)
return tpl.HTMLHandler(func(r *http.Request) (cp componentContext, err error) {
cp.Analytics = *admin.Analytics
return tpl.HTMLHandler(func(r *http.Request) (ac analContext, err error) {
ac.Analytics = *admin.Analytics
return
})
}
//go:embed "html/ingredients.html"
var ingredientsHTML []byte
var ingredientsTemplate = templates.Parse[ingredientsContext]("ingredients.html", ingredientsHTML, assets.AssetsAdmin)
type ingredientsContext struct {
templates.BaseContext
Instance models.Instance
Analytics *lazy.PoolAnalytics
}
func (admin *Admin) ingredients(ctx context.Context) http.Handler {
tpl := ingredientsTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Instance", Path: "* to be updated *"},
{Title: "Ingredients", Path: "* to be updated *"},
},
})
tpl := analTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.DummyMenuItem,
component.DummyMenuItem,
),
)
return tpl.HTMLHandlerWithGaps(func(r *http.Request, gaps *templates.BaseContextGaps) (ic ingredientsContext, err error) {
return tpl.HTMLHandlerWithFlags(func(r *http.Request) (ac analContext, funcs []templating.FlagFunc, err error) {
slug := httprouter.ParamsFromContext(r.Context()).ByName("slug")
gaps.Crumbs[1] = component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}
gaps.Crumbs[2] = component.MenuItem{Title: "Ingredients", Path: template.URL("/admin/instance/" + slug + "/ingredients/")}
// find the instance itself!
instance, err := admin.Dependencies.Instances.WissKI(r.Context(), slug)
if err == instances.ErrWissKINotFound {
return ic, httpx.ErrNotFound
return ac, nil, httpx.ErrNotFound
}
if err != nil {
return ic, err
return ac, nil, err
}
funcs = []templating.FlagFunc{
templating.ReplaceCrumb(1, component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}),
templating.ReplaceCrumb(2, component.MenuItem{Title: "Ingredients", Path: template.URL("/admin/instance/" + slug + "/ingredients/")}),
templating.Title(instance.Name() + " - Ingredients"),
}
ic.Instance = instance.Instance
// and get the components
ic.Analytics = instance.Info().Analytics
ac.Analytics = *instance.Info().Analytics
return
})

75
internal/dis/component/server/admin/grants.go
View file

@ -10,7 +10,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/models"
"github.com/FAU-CDI/wisski-distillery/internal/wisski"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
@ -22,10 +22,14 @@ import (
//go:embed "html/grants.html"
var grantsHTML []byte
var grantsTemplate = templates.Parse[grantsContext]("grants.html", grantsHTML, assets.AssetsAdmin)
var grantsTemplate = templating.Parse[grantsContext](
"grants.html", grantsHTML, nil,
templating.Assets(assets.AssetsAdmin),
)
type grantsContext struct {
templates.BaseContext
templating.RuntimeFlags
Error string
@ -38,40 +42,43 @@ type grantsContext struct {
}
func (admin *Admin) grants(ctx context.Context) http.Handler {
tpl := grantsTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Instance", Path: "*to be updated*"},
{Title: "Grants", Path: "*to be updated*"},
},
})
tpl := grantsTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.DummyMenuItem,
component.DummyMenuItem,
),
)
return tpl.HTMLHandlerWithGaps(func(r *http.Request, gaps *templates.BaseContextGaps) (grantsContext, error) {
return tpl.HTMLHandlerWithFlags(func(r *http.Request) (grantsContext, []templating.FlagFunc, error) {
if r.Method == http.MethodGet {
return admin.getGrants(r, gaps)
return admin.getGrants(r)
} else {
return admin.postGrants(r, gaps)
return admin.postGrants(r)
}
})
}
func (admin *Admin) getGrants(r *http.Request, gaps *templates.BaseContextGaps) (gc grantsContext, err error) {
func (admin *Admin) getGrants(r *http.Request) (gc grantsContext, funcs []templating.FlagFunc, err error) {
slug := httprouter.ParamsFromContext(r.Context()).ByName("slug")
if err := gc.use(r, gaps, slug, admin); err != nil {
return gc, err
funcs, err = gc.use(r, slug, admin)
if err != nil {
return gc, nil, err
}
if err := gc.useGrants(r, admin); err != nil {
return gc, err
return gc, nil, err
}
return gc, nil
return gc, funcs, nil
}
func (admin *Admin) postGrants(r *http.Request, gaps *templates.BaseContextGaps) (gc grantsContext, err error) {
func (admin *Admin) postGrants(r *http.Request) (gc grantsContext, funcs []templating.FlagFunc, err error) {
// parse the form
if err := r.ParseForm(); err != nil {
return gc, err
return gc, nil, err
}
// read out the form values
@ -84,15 +91,16 @@ func (admin *Admin) postGrants(r *http.Request, gaps *templates.BaseContextGaps)
)
// set the common fields
if err := gc.use(r, gaps, slug, admin); err != nil {
return gc, err
funcs, err = gc.use(r, slug, admin)
if err != nil {
return gc, nil, err
}
if delete {
// delete the user grant
err := admin.Dependencies.Policy.Remove(r.Context(), distilleryUser, slug)
if err != nil {
return gc, err
return gc, nil, err
}
} else {
// update the grant
@ -110,26 +118,29 @@ func (admin *Admin) postGrants(r *http.Request, gaps *templates.BaseContextGaps)
// fetch the grants for the instance
if err := gc.useGrants(r, admin); err != nil {
return gc, err
return gc, nil, err
}
return gc, nil
return gc, funcs, nil
}
func (gc *grantsContext) use(r *http.Request, gaps *templates.BaseContextGaps, slug string, admin *Admin) (err error) {
gaps.Crumbs[1] = component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}
gaps.Crumbs[2] = component.MenuItem{Title: "Grants", Path: template.URL("/admin/instance/" + slug + "/grants/")}
func (gc *grantsContext) use(r *http.Request, slug string, admin *Admin) (funcs []templating.FlagFunc, err error) {
// find the instance itself
gc.instance, err = admin.Dependencies.Instances.WissKI(r.Context(), slug)
if err == instances.ErrWissKINotFound {
return httpx.ErrNotFound
return nil, httpx.ErrNotFound
}
if err != nil {
return err
return nil, err
}
gc.Instance = gc.instance.Instance
return nil
// replace the functions
funcs = []templating.FlagFunc{
templating.ReplaceCrumb(1, component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}),
templating.ReplaceCrumb(2, component.MenuItem{Title: "Grants", Path: template.URL("/admin/instance/" + slug + "/grants/")}),
templating.Title(gc.Instance.Slug + " - Grants"),
}
return funcs, nil
}
func (gc *grantsContext) useGrants(r *http.Request, admin *Admin) (err error) {

0
internal/dis/component/server/assets/templates/_anal.html → internal/dis/component/server/admin/html/anal.html
View file

6
internal/dis/component/server/admin/html/components.html
View file

@ -1,6 +0,0 @@
{{ template "_base.html" . }}
{{ define "title" }}Components{{ end }}
{{ define "content" }}
{{ template "_anal.html" .Analytics }}
{{ end }}

7
internal/dis/component/server/admin/html/grants.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}{{ .Instance.Slug }} - Grants{{ end }}
{{ define "content" }}
{{ $csrf := .CSRF }}
{{ $slug := .Instance.Slug }}
<div class="pure-u-1-1">
@ -123,5 +119,4 @@
{{ range $unused, $drupal := .Drupals }}
<option value="{{ $drupal }}">
{{ end }}
</datalist>
{{ end }}
</datalist>

7
internal/dis/component/server/admin/html/index.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}Admin{{ end }}
{{ define "content" }}
<div class="pure-u-1-1">
<h2 id="overview">Distillery Configuration</h2>
</div>
@ -256,5 +252,4 @@
</p>
</div>
</div>
{{end}}
{{ end }}
{{end}}

6
internal/dis/component/server/admin/html/ingredients.html
View file

@ -1,6 +0,0 @@
{{ template "_base.html" . }}
{{ define "title" }}{{ .Instance.Slug }} - Ingredients{{ end }}
{{ define "content" }}
{{ template "_anal.html" .Analytics }}
{{ end }}

7
internal/dis/component/server/admin/html/instance.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}{{ .Instance.Slug }}{{ end }}
{{ define "content" }}
<div class="pure-u-1-1">
<h2 id="overview">Info &amp; Status</h2>
</div>
@ -484,5 +480,4 @@
<button class="remote-action pure-button pure-button-danger" data-action="purge" data-param="{{ .Instance.Slug }}" data-confirm-param="#purge-confirm-slug" data-buffer="1000" data-force-reload="/admin/">Purge Instance</button>
</fieldset>
</form>
</div>
{{ end }}
</div>

4
internal/dis/component/server/admin/html/user_create.html
View file

@ -1,4 +1,2 @@
{{ template "_form.html" . }}
{{ define "form/title" }}Create User{{ end }}
{{ template "form.html" . }}
{{ define "form/button" }}Create{{ end }}

7
internal/dis/component/server/admin/html/users.html
View file

@ -1,8 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}Users{{ end }}
{{ define "content" }}
<div class="pure-u-1">
<div class="padding">
<div class="overflow">
@ -105,5 +100,3 @@
</div>
</div>
</div>
{{ end }}

32
internal/dis/component/server/admin/index.go
View file

@ -9,7 +9,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/status"
"golang.org/x/sync/errgroup"
)
@ -80,27 +80,33 @@ func (admin *Admin) Fetch(flags component.FetcherFlags, target *status.Distiller
//go:embed "html/index.html"
var indexHTML []byte
var indexTemplate = templates.Parse[indexContext]("index.html", indexHTML, assets.AssetsAdmin)
var indexTemplate = templating.Parse[indexContext](
"index.html", indexHTML, nil,
templating.Title("Admin"),
templating.Assets(assets.AssetsAdmin),
)
type indexContext struct {
templates.BaseContext
templating.RuntimeFlags
status.Distillery
Instances []status.WissKI
}
func (admin *Admin) index(ctx context.Context) http.Handler {
tpl := indexTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
},
Actions: []component.MenuItem{
{Title: "Users", Path: "/admin/users/"},
{Title: "Components", Path: "/admin/components/", Priority: component.SmallButton},
},
})
tpl := indexTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
),
templating.Actions(
component.MenuItem{Title: "Users", Path: "/admin/users/"},
component.MenuItem{Title: "Components", Path: "/admin/components/", Priority: component.SmallButton},
),
)
return tpl.HTMLHandlerWithGaps(func(r *http.Request, gaps *templates.BaseContextGaps) (idx indexContext, err error) {
return tpl.HTMLHandler(func(r *http.Request) (idx indexContext, err error) {
idx.Distillery, idx.Instances, err = admin.Status(r.Context(), true)
return
})

52
internal/dis/component/server/admin/instance.go
View file

@ -9,7 +9,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/models"
"github.com/FAU-CDI/wisski-distillery/internal/status"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
@ -18,49 +18,57 @@ import (
//go:embed "html/instance.html"
var instanceHTML []byte
var instanceTemplate = templates.Parse[instanceContext]("instance.html", instanceHTML, assets.AssetsAdmin)
var instanceTemplate = templating.Parse[instanceContext](
"instance.html", instanceHTML, nil,
templating.Assets(assets.AssetsAdmin),
)
type instanceContext struct {
templates.BaseContext
templating.RuntimeFlags
Instance models.Instance
Info status.WissKI
}
func (admin *Admin) instance(ctx context.Context) http.Handler {
tpl := instanceTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Instance", Path: "*to be replaced*"},
},
Actions: []component.MenuItem{
{Title: "Grants", Path: "*to be replaced*"},
{Title: "Ingredients", Path: "*to be replaced*", Priority: component.SmallButton},
},
})
tpl := instanceTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.DummyMenuItem,
),
templating.Actions(
component.DummyMenuItem,
component.DummyMenuItem,
),
)
return tpl.HTMLHandlerWithGaps(func(r *http.Request, gaps *templates.BaseContextGaps) (ic instanceContext, err error) {
return tpl.HTMLHandlerWithFlags(func(r *http.Request) (ic instanceContext, funcs []templating.FlagFunc, err error) {
slug := httprouter.ParamsFromContext(r.Context()).ByName("slug")
gaps.Crumbs[1] = component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}
gaps.Actions[0] = component.MenuItem{Title: "Grants", Path: template.URL("/admin/grants/" + slug)}
gaps.Actions[1] = component.MenuItem{Title: "Ingredients", Path: template.URL("/admin/ingredients/" + slug), Priority: component.SmallButton}
// find the instance itself!
instance, err := admin.Dependencies.Instances.WissKI(r.Context(), slug)
if err == instances.ErrWissKINotFound {
return ic, httpx.ErrNotFound
return ic, nil, httpx.ErrNotFound
}
if err != nil {
return ic, err
return ic, nil, err
}
ic.Instance = instance.Instance
// get some more info about the wisski
ic.Info, err = instance.Info().Information(r.Context(), false)
if err != nil {
return ic, err
return ic, nil, err
}
funcs = []templating.FlagFunc{
templating.ReplaceCrumb(1, component.MenuItem{Title: "Instance", Path: template.URL("/admin/instance/" + slug)}),
templating.ReplaceAction(0, component.MenuItem{Title: "Grants", Path: template.URL("/admin/grants/" + slug)}),
templating.ReplaceAction(1, component.MenuItem{Title: "Ingredients", Path: template.URL("/admin/ingredients/" + slug), Priority: component.SmallButton}),
templating.Title(instance.Name()),
}
return

55
internal/dis/component/server/admin/users.go
View file

@ -11,7 +11,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/auth"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx/field"
"github.com/rs/zerolog"
@ -19,25 +19,30 @@ import (
//go:embed "html/users.html"
var usersHTML []byte
var usersTemplate = templates.Parse[usersContext]("user.html", usersHTML, assets.AssetsAdmin)
var usersTemplate = templating.Parse[usersContext](
"users.html", usersHTML, nil,
templating.Title("Users"),
templating.Assets(assets.AssetsAdmin),
)
type usersContext struct {
templates.BaseContext
templating.RuntimeFlags
Error string
Users []*auth.AuthUser
}
func (admin *Admin) users(ctx context.Context) http.Handler {
tpl := usersTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Users", Path: "/admin/users/"},
},
Actions: []component.MenuItem{
{Title: "Create New", Path: "/admin/users/create/"},
},
})
tpl := usersTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.MenuItem{Title: "Users", Path: "/admin/users/"},
),
templating.Actions(
component.MenuItem{Title: "Create New", Path: "/admin/users/create/"},
),
)
return tpl.HTMLHandler(func(r *http.Request) (uc usersContext, err error) {
uc.Error = r.URL.Query().Get("error")
@ -48,7 +53,12 @@ func (admin *Admin) users(ctx context.Context) http.Handler {
//go:embed "html/user_create.html"
var userCreateHTML []byte
var userCreateTemplate = templates.ParseForm("user_create.html", userCreateHTML, assets.AssetsAdmin)
var userCreateTemplate = templating.ParseForm(
"user_create.html", userCreateHTML, httpx.FormTemplate,
templating.Title("Create User"),
templating.Assets(assets.AssetsAdmin),
)
var (
errCreateInvalidUsername = errors.New("invalid username")
@ -62,13 +72,14 @@ type createUserResult struct {
}
func (admin *Admin) createUser(ctx context.Context) http.Handler {
tpl := userCreateTemplate.Prepare(admin.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Admin", Path: "/admin/"},
{Title: "Users", Path: "/admin/users"},
{Title: "Create", Path: "/admin/users/create"},
},
})
tpl := userCreateTemplate.Prepare(
admin.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Admin", Path: "/admin/"},
component.MenuItem{Title: "Users", Path: "/admin/users"},
component.MenuItem{Title: "Create", Path: "/admin/users/create"},
),
)
return &httpx.Form[createUserResult]{
Fields: []field.Field{
@ -79,7 +90,7 @@ func (admin *Admin) createUser(ctx context.Context) http.Handler {
FieldTemplate: field.PureCSSFieldTemplate,
RenderTemplate: tpl.Template(),
RenderTemplateContext: templates.FormTemplateContext(tpl),
RenderTemplateContext: templating.FormTemplateContext(tpl),
Validate: func(r *http.Request, values map[string]string) (cu createUserResult, err error) {
cu.User, cu.Passsword, cu.Admin = values["username"], values["password"], values["admin"] == field.CheckboxChecked

28
internal/dis/component/server/assets/assets.go
View file

@ -17,32 +17,8 @@ import (
//
// Each asset group should be registered as a parameter to the 'go:generate' line.
type Assets struct {
Scripts string // <script> tags inserted by the asset
Styles string // <link> tags inserted by the asset
Scripts template.HTML // <script> tags inserted by the asset
Styles template.HTML // <link> tags inserted by the asset
}
//go:generate node build.mjs Default User Admin
// MustParse parses a new template from the given source
// and calls [RegisterAssoc] on it.
func (assets *Assets) MustParse(t *template.Template, value string) *template.Template {
t = template.Must(t.Parse(value))
assets.RegisterAssoc(t)
return t
}
// MustParseShared is like [MustParse], but creates a new SharedTemplate instead
func (assets *Assets) MustParseShared(name string, value string) *template.Template {
return assets.MustParse(NewSharedTemplate(name), value)
}
// RegisterAssoc registers two new associated templates with t.
//
// The template "scripts" will render all script tags required.
// The template "styles" will render all style tags required.
//
// If either template already exists, it will be overwritten.
func (assets *Assets) RegisterAssoc(t *template.Template) {
t.New("scripts").Parse(assets.Scripts)
t.New("styles").Parse(assets.Styles)
}

23
internal/dis/component/server/assets/templates.go
View file

@ -1,23 +0,0 @@
package assets
import (
"embed"
"html/template"
)
//go:embed "templates/*.html"
var templates embed.FS
var (
shared *template.Template = template.Must(template.ParseFS(templates, "templates/*.html"))
)
// NewSharedTemplate creates a new template with the given name.
// It will be able to make use of shared templates as well as functions.
func NewSharedTemplate(name string) *template.Template {
new := template.New(name)
for _, template := range shared.Templates() {
new.AddParseTree(template.Tree.Name, template.Tree.Copy())
}
return new
}

30
internal/dis/component/server/assets/templates/_form.html
View file

@ -1,30 +0,0 @@
{{ template "_base.html" . }}
{{ define "title" }}{{ block "form/title" . }}Form{{ end }}{{ end }}
{{ define "content" }}
<div class="pure-u-1">
{{ block "form/extra" . }}<!-- no extra -->{{ end }}
<form class="pure-form pure-form-aligned" method="POST">
<fieldset>
<legend>{{ template "form/title" . }}</legend>
{{ block "form/message" . }}
{{ $E := .Error }}
{{ if not (eq $E "") }}
<div class="pure-form-group">
<p class="error-message">
{{ $E }}
</p>
</div>
{{ end }}
{{ end }}
{{ block "form/inside" . }}<!-- no inside -->{{ end }}
{{ .Form }}
<input type="submit" value="{{ block "form/button" .}}Submit{{ end }}" class="pure-button">
</fieldset>
</form>
</div>
{{ end }}

5
internal/dis/component/server/home/about.html Normal file
View file

@ -0,0 +1,5 @@
<div class="pure-u-1">
<p>
For more information, see <a href="{{ .SelfRedirect }}">{{ .SelfRedirect }}</a>.
</p>
</div>

4
internal/dis/component/server/home/home.go
View file

@ -7,7 +7,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/instances"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/status"
"github.com/FAU-CDI/wisski-distillery/pkg/lazy"
)
@ -15,7 +15,7 @@ import (
type Home struct {
component.Base
Dependencies struct {
Templating *templates.Templating
Templating *templating.Templating
Instances *instances.Instances
}

54
internal/dis/component/server/home/public.go
View file

@ -3,41 +3,73 @@ package home
import (
"context"
_ "embed"
"html/template"
"net/http"
"strings"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/internal/status"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
)
//go:embed "public.html"
var publicHTML []byte
var publicTemplate = templates.Parse[publicContext]("public.html", publicHTML, assets.AssetsDefault)
var publicTemplate = templating.Parse[publicContext](
"public.html", publicHTML, nil,
type publicContext struct {
templates.BaseContext
templating.Title("WissKI Distillery"),
templating.Assets(assets.AssetsDefault),
)
//go:embed "about.html"
var aboutHTML string
var aboutTemplate = template.Must(template.New("about.html").Parse(aboutHTML))
// aboutContext is passed to about.html
type aboutContext struct {
Instances []status.WissKI
SelfRedirect string
}
// publicCOntext is passed to public.html
type publicContext struct {
templating.RuntimeFlags
aboutContext
About template.HTML
}
func (home *Home) publicHandler(ctx context.Context) http.Handler {
tpl := publicTemplate.Prepare(home.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "WissKI Distillery", Path: "/"},
},
})
tpl := publicTemplate.Prepare(
home.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "WissKI Distillery", Path: "/"},
),
)
about := home.Dependencies.Templating.GetCustomizable(aboutTemplate)
return tpl.HTMLHandler(func(r *http.Request) (pc publicContext, err error) {
// only act on the root path!
if strings.TrimSuffix(r.URL.Path, "/") != "" {
return pc, httpx.ErrNotFound
}
pc.Instances = home.homeInstances.Get(nil)
pc.SelfRedirect = home.Config.SelfRedirect.String()
// prepare about
pc.aboutContext.Instances = home.homeInstances.Get(nil)
pc.aboutContext.SelfRedirect = home.Config.SelfRedirect.String()
// render the about template
var builder strings.Builder
if err := about.Execute(&builder, pc.aboutContext); err != nil {
return pc, nil
}
// and return about!
pc.About = template.HTML(builder.String())
return
})

13
internal/dis/component/server/home/public.html
View file

@ -1,14 +1,4 @@
{{ template "_base.html" . }}
{{ define "title" }}WissKI Distillery{{ end }}
{{ define "content" }}
{{ block "@custom/about" . }}
<div class="pure-u-1">
<p>
For more information, see <a href="{{ .SelfRedirect }}">{{ .SelfRedirect }}</a>.
</p>
</div>
{{ end }}
{{ .About }}
<div class="pure-u-1">
<h2>WissKIs on this Distillery</h2>
@ -33,4 +23,3 @@
</div>
{{ end }}
{{ end }}
{{ end }}

24
internal/dis/component/server/legal/legal.go
View file

@ -8,7 +8,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
_ "embed"
)
@ -17,7 +17,7 @@ type Legal struct {
component.Base
Dependencies struct {
Static *assets.Static
Templating *templates.Templating
Templating *templating.Templating
}
}
@ -27,10 +27,15 @@ var (
//go:embed "legal.html"
var legalHTML []byte
var legalTemplate = templates.Parse[legalContext]("legal.html", legalHTML, assets.AssetsDefault)
var legalTemplate = templating.Parse[legalContext](
"legal.html", legalHTML, nil,
templating.Title("Legal"),
templating.Assets(assets.AssetsDefault),
)
type legalContext struct {
templates.BaseContext
templating.RuntimeFlags
LegalNotices string
@ -49,11 +54,12 @@ func (legal *Legal) Routes() component.Routes {
}
func (legal *Legal) HandleRoute(ctx context.Context, route string) (http.Handler, error) {
tpl := legalTemplate.Prepare(legal.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "Legal", Path: "/legal/"},
},
})
tpl := legalTemplate.Prepare(
legal.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "Legal", Path: "/legal/"},
),
)
return tpl.HTMLHandler(func(r *http.Request) (lc legalContext, err error) {
lc.LegalNotices = cli.LegalNotices

7
internal/dis/component/server/legal/legal.html
View file

@ -1,7 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}Legal{{ end }}
{{ define "content" }}
<div class="pure-u-1">
<h2 id="cookies">Cookie Usage</h2>
@ -68,5 +64,4 @@
</p>
<pre>{{ .AssetsDisclaimer }}</pre>
</div>
{{ end }}
</div>

24
internal/dis/component/server/news/news.go
View file

@ -11,7 +11,7 @@ import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/rs/zerolog"
"github.com/yuin/goldmark"
gmmeta "github.com/yuin/goldmark-meta"
@ -22,7 +22,7 @@ import (
type News struct {
component.Base
Dependencies struct {
Templating *templates.Templating
Templating *templating.Templating
}
}
@ -113,20 +113,26 @@ func Items() ([]Item, error) {
//go:embed "news.html"
var newsHTML []byte
var newsTemplate = templates.Parse[newsContext]("news.html", newsHTML, assets.AssetsDefault)
var newsTemplate = templating.Parse[newsContext](
"news.html", newsHTML, nil,
templating.Title("News"),
templating.Assets(assets.AssetsDefault),
)
type newsContext struct {
templates.BaseContext
templating.RuntimeFlags
Items []Item
}
// HandleRoute returns the handler for the requested path
func (news *News) HandleRoute(ctx context.Context, path string) (http.Handler, error) {
tpl := newsTemplate.Prepare(news.Dependencies.Templating, templates.BaseContextGaps{
Crumbs: []component.MenuItem{
{Title: "News", Path: "/news/"},
},
})
tpl := newsTemplate.Prepare(
news.Dependencies.Templating,
templating.Crumbs(
component.MenuItem{Title: "News", Path: "/news/"},
),
)
items, itemsErr := Items()
if itemsErr != nil {

7
internal/dis/component/server/news/news.html
View file

@ -1,8 +1,3 @@
{{ template "_base.html" . }}
{{ define "title" }}News{{ end }}
{{ define "content" }}
<div class="pure-u-1">
This page contains news items from the distillery.
</div>
@ -14,5 +9,3 @@
{{ .Content }}
</div>
{{ end }}
{{ end }}

4
internal/dis/component/server/server.go
View file

@ -7,7 +7,7 @@ import (
"net/http"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templates"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/templating"
"github.com/FAU-CDI/wisski-distillery/pkg/cancel"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/FAU-CDI/wisski-distillery/pkg/mux"
@ -22,7 +22,7 @@ type Server struct {
Routeables []component.Routeable
Cronables []component.Cronable
Templating *templates.Templating
Templating *templating.Templating
}
}

102
internal/dis/component/server/templates/context.go
View file

@ -1,102 +0,0 @@
package templates
import (
"html/template"
"net/http"
"reflect"
"time"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/gorilla/csrf"
"github.com/tkw1536/goprogram/lib/reflectx"
"golang.org/x/exp/slices"
)
// baseContextName is the name of the [BaseContext] type
var baseContextName = reflectx.TypeOf[BaseContext]().Name()
// BaseContext represents a context used by templates
//
// Other invocations might cause an error at runtime.
type BaseContext struct {
inited bool // has this context been inited?
requestWasNil bool // was the passed request nil
GeneratedAt time.Time // time this page was generated at
// Menu and breadcrumbs
Menu []component.MenuItem
BaseContextGaps
CSRF template.HTML // CSRF Field
}
// constants that are used in various parts of the template to render stuff
const (
errorPrefix template.HTML = `<div style="z-index:10000;position:fixed;top:0;left:0;width:100vh;height:100vw;background:red;text-align:center;padding:10vh 10vw;font-size:xx-large;font-weight:bold">`
errorSuffix template.HTML = "</div>"
csrfError template.HTML = errorPrefix + "CSRF used but not provided" + errorSuffix
initError template.HTML = errorPrefix + "<code>BaseContext.use()</code> not called" + errorSuffix
requestNilError template.HTML = errorPrefix + "<code>BaseContext.use()</code> called with nil request" + errorSuffix
)
type BaseContextGaps struct {
Crumbs []component.MenuItem
Actions []component.MenuItem
}
func (bcg BaseContextGaps) clone() BaseContextGaps {
return BaseContextGaps{
Crumbs: slices.Clone(bcg.Crumbs),
Actions: slices.Clone(bcg.Actions),
}
}
// update updates an embedded BaseContext field in context.
func (tpl *Templating) update(context any, r *http.Request, bcg BaseContextGaps) *BaseContext {
tc := reflect.ValueOf(context).
Elem().FieldByName(baseContextName).Addr().
Interface().(*BaseContext)
tc.inited = true
tc.requestWasNil = r == nil
tc.GeneratedAt = time.Now().UTC()
// setup the CSRF field
tc.CSRF = csrfError
if r != nil {
tc.CSRF = csrf.TemplateField(r)
}
// build the menu
tc.Menu = tpl.buildMenu(r)
// build the breadcrumbs
tc.BaseContextGaps = bcg.clone()
last := len(tc.Crumbs) - 1
for i := range tc.Crumbs {
tc.Crumbs[i].Active = i == last
}
return tc
}
// DoInitCheck is called by the template to check that the BaseContext was initialized properly
func (bc BaseContext) DoInitCheck() template.HTML {
if !bc.inited {
return initError
}
if bc.requestWasNil {
return requestNilError
}
return ""
}
// BaseFormContext combines BaseContext and FormContext
type BaseFormContext struct {
BaseContext
httpx.FormContext
}

139
internal/dis/component/server/templates/new.go
View file

@ -1,139 +0,0 @@
package templates
import (
"html/template"
"net/http"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
)
// Parsed represents a parsed template that receives an underlying context of type C
type Parsed[C any] struct {
template *template.Template
}
// Parse creates a new Parsed from a template source.
// Parse calls panic() when parsing fails.
func Parse[C any](name string, source []byte, Assets assets.Assets) Parsed[C] {
return Parsed[C]{
template: Assets.MustParseShared(name, string(source)),
}
}
// Prepare prepares this template for use inside a concrete handler.
// gaps must either be of length 0 or length 1 and may pre-fill gaps to be used when executing the template later.
func (p *Parsed[C]) Prepare(tpl *Templating, gaps ...BaseContextGaps) *Template[C] {
wrap := Template[C]{
tpl: tpl,
template: tpl.Template(p.template),
}
if len(gaps) > 1 {
panic("WrapTemplate: must provide either 1 or no gaps")
}
if len(gaps) == 1 {
wrap.gaps = gaps[0]
}
return &wrap
}
// Tempalte represents an executable template.
type Template[C any] struct {
tpl *Templating
template *template.Template
gaps BaseContextGaps
}
// Template returns a template that, if executed together with the context by the Context method, produces the desired result.
func (tw *Template[C]) Template() *template.Template {
return tw.template
}
// Context generates a context for a given request that can be used to execute the provided template.
func (tw *Template[C]) Context(r *http.Request, c C, gaps ...BaseContextGaps) any {
// make the gaps something
if len(gaps) > 1 {
panic("Context: must provide either 1 or no gaps")
}
// update the context with gaps
{
g := tw.gaps
if len(gaps) == 1 {
g = gaps[0]
}
tw.tpl.update(&c, r, g)
}
return c
}
// ParseForm is like Parse[BaseFormContext]
var ParseForm = Parse[BaseFormContext]
// FormTemplateContext returns a new handler for a form with the given base context
func FormTemplateContext(tw *Template[BaseFormContext]) func(ctx httpx.FormContext, r *http.Request) any {
return func(ctx httpx.FormContext, r *http.Request) any {
return tw.Context(r, BaseFormContext{FormContext: ctx})
}
}
// MappedHandler returns a new handler that maps the incoming context via f
func MappedHandler[In, Out any](tw *Template[Out], f func(ctx In, r *http.Request) (Out, BaseContextGaps)) func(ctx In, r *http.Request) any {
// TODO: Should this one be removed?
return func(ctx In, r *http.Request) any {
c, g := f(ctx, r)
return tw.Context(r, c, g)
}
}
// Hander returns a function that returns a context for the given template
func (tw *Template[C]) Handler(f func(r *http.Request) (C, error)) func(r *http.Request) (any, error) {
// TODO: Should this one be removed?
return tw.HandlerWithGaps(func(r *http.Request, gaps *BaseContextGaps) (C, error) {
return f(r)
})
}
// HTMLHandler returns a new HTMLHandler for this request
func (tw *Template[C]) HTMLHandler(f func(r *http.Request) (C, error)) httpx.HTMLHandler[any] {
return httpx.HTMLHandler[any]{
Handler: tw.Handler(f),
Template: tw.Template(),
}
}
// HandlerWithGaps works like handler, but additionally receives a gaps object to update.
func (tw *Template[C]) HandlerWithGaps(f func(r *http.Request, gaps *BaseContextGaps) (C, error)) func(r *http.Request) (any, error) {
// TODO: Drop this variant?
var zero C
return func(r *http.Request) (any, error) {
g := tw.gaps.clone()
c, err := f(r, &g)
if err != nil {
return zero, err
}
// update the context
return tw.Context(r, c, g), nil
}
}
func (tw *Template[C]) HTMLHandlerWithGaps(f func(r *http.Request, gaps *BaseContextGaps) (C, error)) httpx.HTMLHandler[any] {
return httpx.HTMLHandler[any]{
Handler: tw.HandlerWithGaps(f),
Template: tw.Template(),
}
}
// Execute executes this template with the given context
func (tw *Template[C]) Execute(w http.ResponseWriter, r *http.Request, c C, gaps ...BaseContextGaps) error {
return tw.ExecuteWithError(w, r, c, nil, gaps...)
}
// ExecuteWithError executes this template, or the default error handler if err != nil
func (tw *Template[C]) ExecuteWithError(w http.ResponseWriter, r *http.Request, c C, err error, gaps ...BaseContextGaps) error {
// TODO: Drop this variant?
// TODO: This should be removed!
return httpx.WriteHTML(tw.Context(r, c, gaps...), err, tw.template, "", w, r)
}

65
internal/dis/component/server/templates/template.go
View file

@ -1,65 +0,0 @@
package templates
import (
_ "embed"
"html/template"
"text/template/parse"
"github.com/FAU-CDI/wisski-distillery/pkg/environment"
)
const (
footerName = "@custom/footer"
aboutName = "@custom/about"
)
//go:embed "footer.html"
var footerTemplateStr string
var defaultFooterTemplate = template.Must(template.New("footer.html").Parse(footerTemplateStr))
// Template creates a copy of template with shared template parts updated accordingly.
// Any template using this should use one of the template contexts in this package.
func (tpl *Templating) Template(t *template.Template) *template.Template {
// TODO: This should not be used!
// create a clone of the template
clone := template.Must(t.Clone())
// add all the fixed parse trees
footerTree := tpl.getTemplateAsset(defaultFooterTemplate)
template.Must(clone.AddParseTree(footerName, footerTree))
// optionally add the about asset
if aboutTree := tpl.readTemplateAsset("about.html"); clone.Lookup(aboutName) != nil && aboutTree != nil {
template.Must(clone.AddParseTree(aboutName, aboutTree))
}
return clone // and return the tree
}
// getTemplateAsset returns an overridable template asset.
//
// If the asset named can successfully be parsed, it is returned.
// If it can not be parsed, the default template is returned.
func (tpl *Templating) getTemplateAsset(dflt *template.Template) *parse.Tree {
tree := tpl.readTemplateAsset(dflt.Name())
if tree == nil {
return dflt.Tree.Copy()
}
return tree
}
// readTemplateAsset is like getTemplateAssets, but takes an explicit name to read.
// when the asset does not exist, or cannot be opened, returns nil.
func (tpl *Templating) readTemplateAsset(name string) *parse.Tree {
template, err := (func() (*template.Template, error) {
data, err := environment.ReadFile(tpl.Environment, tpl.CustomAssetPath(name))
if err != nil {
return nil, err
}
return template.New(name).Parse(string(data))
})()
if err != nil {
return nil
}
return template.Tree
}

2
internal/dis/component/server/templates/assets.go → internal/dis/component/server/templating/assets.go
View file

@ -1,4 +1,4 @@
package templates
package templating
import (
"path/filepath"

193
internal/dis/component/server/templating/base.go Normal file
View file

@ -0,0 +1,193 @@
package templating
import (
"context"
_ "embed"
"fmt"
"html/template"
"net/http"
"reflect"
"strings"
"time"
"github.com/FAU-CDI/wisski-distillery/pkg/httpx"
"github.com/gorilla/csrf"
"github.com/rs/zerolog"
)
//go:embed "src/base.html"
var baseHTML string
var baseTemplate = template.Must(template.New("base.html").Parse(baseHTML))
// Tempalte represents an executable template.
type Template[C any] struct {
templating *Templating
p *Parsed[C]
}
// Template returns a template that, if executed together with the context by the Context method, produces the desired result.
func (tpl *Template[C]) Template() *template.Template {
return baseTemplate
}
// Context generates the context to pass to an instance of the template returned by Template.
func (tpl *Template[C]) Context(r *http.Request, c C, funcs ...FlagFunc) (ctx *tContext[C]) {
// create a new context
ctx = new(tContext[C])
// setup the basic properties
ctx.ctx = r.Context()
ctx.Runtime.RequestURI = r.URL.RequestURI()
ctx.Runtime.GeneratedAt = time.Now().UTC()
ctx.Runtime.CSRF = csrf.TemplateField(r)
ctx.Runtime.Menu = tpl.templating.buildMenu(r)
// generate the rest of the options
ctx.Runtime.Flags = ctx.Runtime.Flags.Apply(r, tpl.p.funcs...)
ctx.Runtime.Flags = ctx.Runtime.Flags.Apply(r, funcs...)
// if the context has a runtime flags embed, then set the field properly
if tpl.p.hasRuntimeFlagsEmbed {
reflect.ValueOf(&c).Elem().
FieldByName(runtimeFlagsName).
Set(reflect.ValueOf(ctx.Runtime))
}
// the main template
ctx.cMain = c
ctx.tMain = tpl.p.tpl
// the footer template
ctx.tFooter = tpl.templating.GetCustomizable(footerTemplate)
ctx.cFooter = ctx.Runtime
return
}
// ParseForm is like Parse[BaseFormContext]
var ParseForm = Parse[FormContext]
type FormContext struct {
httpx.FormContext
RuntimeFlags
}
// NewFormContext returns a new FormContext from an underlying context
func NewFormContext(context httpx.FormContext) FormContext {
return FormContext{FormContext: context}
}
// FormTemplateContext returns a new handler for a form with the given base context
func FormTemplateContext(tw *Template[FormContext]) func(ctx httpx.FormContext, r *http.Request) any {
// TODO: Is this needed?
return func(ctx httpx.FormContext, r *http.Request) any {
return tw.Context(r, FormContext{FormContext: ctx})
}
}
// Hander returns a function that returns a context for the given template
func (tw *Template[C]) Handler(f func(r *http.Request) (C, error)) func(r *http.Request) (any, error) {
// TODO: Should this one be removed?
return tw.HandlerWithFlags(func(r *http.Request) (C, []FlagFunc, error) {
c, err := f(r)
return c, nil, err
})
}
// HTMLHandler returns a new HTMLHandler for this request
func (tw *Template[C]) HTMLHandler(f func(r *http.Request) (C, error)) httpx.HTMLHandler[any] {
return httpx.HTMLHandler[any]{
Handler: tw.Handler(f),
Template: tw.Template(),
}
}
// HandlerWithFlags works like handler, but additionally receive funcs to generate flags
func (tw *Template[C]) HandlerWithFlags(f func(r *http.Request) (C, []FlagFunc, error)) func(r *http.Request) (any, error) {
return func(r *http.Request) (any, error) {
c, funcs, err := f(r)
if err != nil {
return nil, err
}
return tw.Context(r, c, funcs...), nil
}
}
func (tw *Template[C]) HTMLHandlerWithFlags(f func(r *http.Request) (C, []FlagFunc, error)) httpx.HTMLHandler[any] {
return httpx.HTMLHandler[any]{
Handler: tw.HandlerWithFlags(f),
Template: tw.Template(),
}
}
// tContext is passed to the underlying template.
//
// Callers may not retain references beyond the invocation of the template.
// Callers must not rely on the internal structure of this tContext.
type tContext[C any] struct {
Runtime RuntimeFlags // underlying flags
ctx context.Context // underlying context for render
// the main template and context
tMain *template.Template
cMain C
// the footer template and context
tFooter *template.Template
cFooter RuntimeFlags
}
// Main renders the main template.
func (ctx *tContext[C]) Main() (template.HTML, error) {
return ctx.renderSafe("main", ctx.tMain, ctx.cMain)
}
// Footer renders the footer template
func (ctx *tContext[C]) Footer() (template.HTML, error) {
return ctx.renderSafe("footer", ctx.tFooter, ctx.cFooter)
}
const renderSafeError = "Error displaying page. See server log for details. "
func (ctx *tContext[C]) renderSafe(name string, t *template.Template, c any) (template.HTML, error) {
// already done
if err := ctx.ctx.Err(); err != nil {
return "", err
}
value, err, panicked := func() (value template.HTML, err error, panicked bool) {
var builder strings.Builder
defer func() {
if panicked {
r := recover()
zerolog.Ctx(ctx.ctx).Error().
Str("uri", ctx.Runtime.RequestURI).
Str("name", name).
Str("panic", fmt.Sprint(r)).
Msg("templating.Main(): template panic()ed")
}
}()
panicked = true
err = t.Execute(&builder, c)
panicked = false
if err != nil {
zerolog.Ctx(ctx.ctx).Err(err).
Str("uri", ctx.Runtime.RequestURI).
Str("name", name).
Msg("template errored")
}
return template.HTML(builder.String()), err, false
}()
if err != nil || panicked {
return renderSafeError, httpx.ErrInternalServerError
}
return value, nil
}

101
internal/dis/component/server/templating/flags.go Normal file
View file

@ -0,0 +1,101 @@
package templating
import (
"html/template"
"net/http"
"time"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"
"github.com/FAU-CDI/wisski-distillery/internal/dis/component/server/assets"
"github.com/tkw1536/goprogram/lib/reflectx"
"golang.org/x/exp/slices"
)
// Flags represent handle-updatable options for the base template
type Flags struct {
Title string // Title of the menu
assets.Assets // assets are the assets included in the template
Crumbs []component.MenuItem // crumbs are the breadcrumbs leading to a specific action
Actions []component.MenuItem // actions are the actions available to a specific thingy
}
// Apply applies a set of functions to this flags
func (flags Flags) Apply(r *http.Request, funcs ...FlagFunc) Flags {
for _, f := range funcs {
flags = f(flags, r)
}
return flags
}
// RuntimeFlags are passed to the template at runtime.
// Any context may e
type RuntimeFlags struct {
Flags
RequestURI string // request uri of the current page
Menu []component.MenuItem // menu at the top of the page
GeneratedAt time.Time // time the underlying data returned
CSRF template.HTML // csrf data (if any)
}
var runtimeFlagsName = reflectx.TypeOf[RuntimeFlags]().Name()
// Clone clones this flags
func (flags Flags) Clone() Flags {
flags.Crumbs = slices.Clone(flags.Crumbs)
flags.Actions = slices.Clone(flags.Actions)
return flags
}
// FlagFunc updates a flags based on a request.
// FlagFunc may not be nil.
type FlagFunc func(flags Flags, r *http.Request) Flags
// Assets sets the given assets for the given flags
func Assets(Assets assets.Assets) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Assets = Assets
return flags
}
}
// Crumbs sets the crumbs
func Crumbs(crumbs ...component.MenuItem) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Crumbs = crumbs
return flags
}
}
// Actions sets the actions
func Actions(actions ...component.MenuItem) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Actions = actions
return flags
}
}
// ReplaceAction replaces a specific action
func ReplaceAction(index int, action component.MenuItem) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Actions[index] = action
return flags
}
}
// ReplaceCrumb replaces a specific crum
func ReplaceCrumb(index int, action component.MenuItem) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Crumbs[index] = action
return flags
}
}
// Title sets the title of this template
func Title(title string) FlagFunc {
return func(flags Flags, r *http.Request) Flags {
flags.Title = title
return flags
}
}

2
internal/dis/component/server/templates/menu.go → internal/dis/component/server/templating/menu.go
View file

@ -1,4 +1,4 @@
package templates
package templating
import (
"html/template"

66
internal/dis/component/server/templating/parse.go Normal file
View file

@ -0,0 +1,66 @@
package templating
import (
"html/template"
"reflect"
"github.com/tkw1536/goprogram/lib/reflectx"
"golang.org/x/exp/slices"
)
// Parsed represents a parsed template that takes as argument a context of type C.
type Parsed[C any] struct {
// does the context type an embed of the runtime flags type?
hasRuntimeFlagsEmbed bool
tpl *template.Template // parsed template
funcs []FlagFunc // optionally concfigured functions.
}
// Parse parses a template with the given name and source.
// If base is not nil, every template associated with the base template is copied into the given template.
// Functions will be applied on creation time to represent the context for the given template.
func Parse[C any](name string, source []byte, base *template.Template, funcs ...FlagFunc) Parsed[C] {
tp := reflectx.TypeOf[C]()
// determine if we have an embedded field in the struct
var hasEmbed bool
if tp.Kind() == reflect.Struct {
field, ok := tp.FieldByName(runtimeFlagsName)
if ok {
hasEmbed = field.Anonymous
}
}
// create a new template, and optionally inherit from the base template
new := template.New(name)
if base != nil {
for _, tree := range base.Templates() {
root := tree.Tree.Copy()
new.AddParseTree(tree.Name(), root)
}
}
return Parsed[C]{
hasRuntimeFlagsEmbed: hasEmbed,
tpl: template.Must(new.Parse(string(source))),
funcs: funcs,
}
}
// Prepare prepares this template to be used with the given templating.
func (p *Parsed[C]) Prepare(templating *Templating, funcs ...FlagFunc) *Template[C] {
pcopy := *p // make a copy of p!
wrap := Template[C]{
templating: templating,
p: &pcopy,
}
// copy the functions!
pcopy.funcs = slices.Clone(pcopy.funcs)
pcopy.funcs = append(wrap.p.funcs, funcs...)
return &wrap
}

27
internal/dis/component/server/assets/templates/_base.html → internal/dis/component/server/templating/src/base.html
View file

@ -4,15 +4,14 @@
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8">
<title>{{ block "title" . }}WissKI Distillery{{ end }}</title>
{{ block "styles" . }}styles{{ end }}
<title>{{ .Runtime.Flags.Title }}</title>
{{ .Runtime.Flags.Assets.Styles }}
</head>
<body>
{{ .BaseContext.DoInitCheck }}
<nav class="pure-menu pure-menu-horizontal">
<ul class="pure-menu-list" role="menubar">
{{ range .BaseContext.Menu }}
{{ range .Runtime.Menu }}
<li class="pure-menu-item{{ if .Active }} pure-menu-selected{{ end }}">
<a href="{{ .Path }}" class="pure-menu-link">{{ .Title }}</a>
</li>
@ -20,16 +19,16 @@
</ul>
</nav>
<nav class="breadcrumbs" role="navigation" aria-label="Breadcrumbs">
{{ range .BaseContext.Crumbs }}
<a class="{{ if .Active }}active{{ end }}" href="{{ .Path }}">{{ .Title }}</a>
{{ range .Runtime.Flags.Crumbs }}
<a class="{{ if .Active }}active{{ end }}" href="{{ .Path }}">{{ .Title }}</a>
{{ end }}
</nav>
<header>
<h1 id="top">{{ template "title" . }}</h1>
{{ if .BaseContext.Actions }}
<h1 id="top">{{ .Runtime.Flags.Title }}</h1>
{{ if .Runtime.Flags.Actions }}
<div class="pure-button-group" role="group" aria-label="Actions">
{{ range .BaseContext.Actions }}
{{ range .Runtime.Flags.Actions }}
<a href="{{ .Path }}" class="pure-button{{ if eq .Priority -1 }} pure-button-small{{end}}">{{ .Title }}</a>
{{ end }}
</div>
@ -37,20 +36,16 @@
</header>
<main>
<div class="pure-g">
{{ block "content" . }}content{{ end }}
{{ .Main }}
</div>
</main>
<footer>
{{ block "@custom/footer" .BaseContext }}
<div style="z-index:10000;position:fixed;top:0;left:0;width:100vh;height:100vw;background:red;text-align:center;padding:10vh 10vw;font-size:xx-large;font-weight:bold">
<code>.Templating.Template()</code> not called
</div>
{{ end }}
{{ .Footer }}
</footer>
{{ block "scripts" . }}scripts{{ end }}
{{ .Runtime.Flags.Assets.Scripts }}
</body>
</html>

0
internal/dis/component/server/templates/footer.html → internal/dis/component/server/templating/src/footer.html
View file

29
internal/dis/component/server/templating/template.go Normal file
View file

@ -0,0 +1,29 @@
package templating
import (
_ "embed"
"html/template"
"github.com/FAU-CDI/wisski-distillery/pkg/environment"
)
//go:embed "src/footer.html"
var footerHTML string
var footerTemplate = template.Must(template.New("footer.html").Parse(footerHTML))
// GetCustomizable returns either a clone of dflt, or the overriden template with the same name.
func (tpl *Templating) GetCustomizable(dflt *template.Template) *template.Template {
name := dflt.Name()
custom, err := (func() (*template.Template, error) {
data, err := environment.ReadFile(tpl.Environment, tpl.CustomAssetPath(name))
if err != nil {
return nil, err
}
return template.New(name).Parse(string(data))
})()
if err != nil {
return template.Must(dflt.Clone())
}
return custom
}

2
internal/dis/component/server/templates/templating.go → internal/dis/component/server/templating/templating.go
View file

@ -1,4 +1,4 @@
package templates
package templating
import (
"github.com/FAU-CDI/wisski-distillery/internal/dis/component"