ClusterCockpit/cc-backend
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Merge branch 'master' of github.com:ClusterCockpit/cc-backend

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This commit is contained in:
Jan Eitzinger 2022-03-03 15:33:57 +01:00
commit 9c6d37118b
14 changed files with 447 additions and 34 deletions
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103
api/rest.go
View File

@ -17,6 +17,7 @@ import (
"time"
"github.com/ClusterCockpit/cc-backend/auth"
"github.com/ClusterCockpit/cc-backend/config"
"github.com/ClusterCockpit/cc-backend/graph"
"github.com/ClusterCockpit/cc-backend/graph/model"
"github.com/ClusterCockpit/cc-backend/log"
@ -29,6 +30,7 @@ import (
type RestApi struct {
JobRepository *repository.JobRepository
Resolver *graph.Resolver
Authentication *auth.Authentication
MachineStateDir string
OngoingArchivings sync.WaitGroup
}
@ -48,6 +50,14 @@ func (api *RestApi) MountRoutes(r *mux.Router) {
r.HandleFunc("/jobs/metrics/{id}", api.getJobMetrics).Methods(http.MethodGet)
if api.Authentication != nil {
r.HandleFunc("/jwt/", api.getJWT).Methods(http.MethodGet)
r.HandleFunc("/users/", api.createUser).Methods(http.MethodPost, http.MethodPut)
r.HandleFunc("/users/", api.getUsers).Methods(http.MethodGet)
r.HandleFunc("/users/", api.deleteUser).Methods(http.MethodDelete)
r.HandleFunc("/configuration/", api.updateConfiguration).Methods(http.MethodPost)
}
if api.MachineStateDir != "" {
r.HandleFunc("/machine_state/{cluster}/{host}", api.getMachineState).Methods(http.MethodGet)
r.HandleFunc("/machine_state/{cluster}/{host}", api.putMachineState).Methods(http.MethodPut, http.MethodPost)
@ -465,6 +475,99 @@ func (api *RestApi) getJobMetrics(rw http.ResponseWriter, r *http.Request) {
})
}
func (api *RestApi) getJWT(rw http.ResponseWriter, r *http.Request) {
rw.Header().Set("Content-Type", "text/plain")
username := r.FormValue("username")
me := auth.GetUser(r.Context())
if !me.HasRole(auth.RoleAdmin) {
if username != me.Username {
http.Error(rw, "only admins are allowed to sign JWTs not for themselves", http.StatusForbidden)
return
}
}
user, err := api.Authentication.FetchUser(username)
if err != nil {
http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
return
}
jwt, err := api.Authentication.ProvideJWT(user)
if err != nil {
http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
return
}
rw.WriteHeader(http.StatusOK)
rw.Write([]byte(jwt))
}
func (api *RestApi) createUser(rw http.ResponseWriter, r *http.Request) {
rw.Header().Set("Content-Type", "text/plain")
me := auth.GetUser(r.Context())
if !me.HasRole(auth.RoleAdmin) {
http.Error(rw, "only admins are allowed to create new users", http.StatusForbidden)
return
}
username, password, role, name, email := r.FormValue("username"), r.FormValue("password"), r.FormValue("role"), r.FormValue("name"), r.FormValue("email")
if len(password) == 0 && role != auth.RoleApi {
http.Error(rw, "only API users are allowed to have a blank password (login will be impossible)", http.StatusBadRequest)
return
}
if err := api.Authentication.CreateUser(username, name, password, email, []string{role}); err != nil {
http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
return
}
rw.Write([]byte(fmt.Sprintf("User %#v successfully created!\n", username)))
}
func (api *RestApi) deleteUser(rw http.ResponseWriter, r *http.Request) {
if user := auth.GetUser(r.Context()); !user.HasRole(auth.RoleAdmin) {
http.Error(rw, "only admins are allowed to delete a user", http.StatusForbidden)
return
}
username := r.FormValue("username")
if err := api.Authentication.DelUser(username); err != nil {
http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
return
}
rw.WriteHeader(http.StatusOK)
}
func (api *RestApi) getUsers(rw http.ResponseWriter, r *http.Request) {
if user := auth.GetUser(r.Context()); !user.HasRole(auth.RoleAdmin) {
http.Error(rw, "only admins are allowed to fetch a list of users", http.StatusForbidden)
return
}
users, err := api.Authentication.FetchUsers(r.URL.Query().Get("via-ldap") == "true")
if err != nil {
http.Error(rw, err.Error(), http.StatusInternalServerError)
return
}
json.NewEncoder(rw).Encode(users)
}
func (api *RestApi) updateConfiguration(rw http.ResponseWriter, r *http.Request) {
rw.Header().Set("Content-Type", "text/plain")
key, value := r.FormValue("key"), r.FormValue("value")
fmt.Printf("KEY: %#v\nVALUE: %#v\n", key, value)
if err := config.UpdateConfig(key, value, r.Context()); err != nil {
http.Error(rw, err.Error(), http.StatusUnprocessableEntity)
return
}
rw.Write([]byte("success"))
}
func (api *RestApi) putMachineState(rw http.ResponseWriter, r *http.Request) {
if api.MachineStateDir == "" {
http.Error(rw, "not enabled", http.StatusNotFound)

92
auth/auth.go
View File

@ -26,12 +26,12 @@ import (
// If Name and Email is needed as well, use auth.FetchUser(), which does a database
// query for all fields.
type User struct {
Username string
Password string
Name string
Roles []string
ViaLdap bool
Email string
Username string `json:"username"`
Password string `json:"-"`
Name string `json:"name"`
Roles []string `json:"roles"`
ViaLdap bool `json:"via-ldap"`
Email string `json:"email"`
}
const (
@ -130,32 +130,46 @@ func (auth *Authentication) AddUser(arg string) error {
return errors.New("invalid argument format")
}
password := ""
if len(parts[2]) > 0 {
bytes, err := bcrypt.GenerateFromPassword([]byte(parts[2]), bcrypt.DefaultCost)
roles := strings.Split(parts[1], ",")
return auth.CreateUser(parts[0], "", parts[2], "", roles)
}
func (auth *Authentication) CreateUser(username, name, password, email string, roles []string) error {
for _, role := range roles {
if role != RoleAdmin && role != RoleApi && role != RoleUser {
return fmt.Errorf("invalid user role: %#v", role)
}
}
if username == "" {
return errors.New("username should not be empty")
}
if password != "" {
bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
if err != nil {
return err
}
password = string(bytes)
}
roles := []string{}
for _, role := range strings.Split(parts[1], ",") {
if len(role) == 0 {
continue
} else if role == RoleAdmin || role == RoleApi || role == RoleUser {
roles = append(roles, role)
} else {
return fmt.Errorf("invalid user role: %#v", role)
}
rolesJson, _ := json.Marshal(roles)
cols := []string{"username", "password", "roles"}
vals := []interface{}{username, password, string(rolesJson)}
if name != "" {
cols = append(cols, "name")
vals = append(vals, name)
}
if email != "" {
cols = append(cols, "email")
vals = append(vals, email)
}
rolesJson, _ := json.Marshal(roles)
_, err := sq.Insert("user").Columns("username", "password", "roles").Values(parts[0], password, string(rolesJson)).RunWith(auth.db).Exec()
if err != nil {
if _, err := sq.Insert("user").Columns(cols...).Values(vals...).RunWith(auth.db).Exec(); err != nil {
return err
}
log.Infof("new user %#v added (roles: %s)", parts[0], roles)
log.Infof("new user %#v created (roles: %s)", username, roles)
return nil
}
@ -164,6 +178,40 @@ func (auth *Authentication) DelUser(username string) error {
return err
}
func (auth *Authentication) FetchUsers(viaLdap bool) ([]*User, error) {
q := sq.Select("username", "name", "email", "roles").From("user")
if !viaLdap {
q = q.Where("ldap = 0")
} else {
q = q.Where("ldap = 1")
}
rows, err := q.RunWith(auth.db).Query()
if err != nil {
return nil, err
}
users := make([]*User, 0)
defer rows.Close()
for rows.Next() {
rawroles := ""
user := &User{}
var name, email sql.NullString
if err := rows.Scan(&user.Username, &name, &email, &rawroles); err != nil {
return nil, err
}
if err := json.Unmarshal([]byte(rawroles), &user.Roles); err != nil {
return nil, err
}
user.Name = name.String
user.Email = email.String
users = append(users, user)
}
return users, nil
}
func (auth *Authentication) FetchUser(username string) (*User, error) {
user := &User{Username: username}
var hashedPassword, name, rawRoles, email sql.NullString

7
config/config.go
View File

@ -132,6 +132,7 @@ func GetUIConfig(r *http.Request) (map[string]interface{}, error) {
}
size := 0
defer rows.Close()
for rows.Next() {
var key, rawval string
if err := rows.Scan(&key, &rawval); err != nil {
@ -173,12 +174,16 @@ func UpdateConfig(key, value string, ctx context.Context) error {
return nil
}
cache.Del(user.Username)
if _, ok := uiDefaults[key]; !ok {
return errors.New("this configuration key does not exist")
}
if _, err := db.Exec(`REPLACE INTO configuration (username, confkey, value) VALUES (?, ?, ?)`,
user.Username, key, value); err != nil {
return err
}
cache.Del(user.Username)
return nil
}

2
frontend

@ -1 +1 @@
Subproject commit 984532dbf2a05d670c90a16cba9c93de813e304a
Subproject commit 93ec75b801215d9b4175cb32dd485217b1cbe810

10
graph/generated/generated.go
View File

@ -1379,6 +1379,8 @@ input JobFilter {
partition: StringInput
duration: IntRange
minRunningFor: Int
numNodes: IntRange
numAccelerators: IntRange
numHWThreads: IntRange
@ -7218,6 +7220,14 @@ func (ec *executionContext) unmarshalInputJobFilter(ctx context.Context, obj int
if err != nil {
return it, err
}
case "minRunningFor":
var err error
ctx := graphql.WithPathContext(ctx, graphql.NewPathWithField("minRunningFor"))
it.MinRunningFor, err = ec.unmarshalOInt2ᚖint(ctx, v)
if err != nil {
return it, err
}
case "numNodes":
var err error

1
graph/model/models_gen.go
View File

@ -57,6 +57,7 @@ type JobFilter struct {
Cluster *StringInput `json:"cluster"`
Partition *StringInput `json:"partition"`
Duration *IntRange `json:"duration"`
MinRunningFor *int `json:"minRunningFor"`
NumNodes *IntRange `json:"numNodes"`
NumAccelerators *IntRange `json:"numAccelerators"`
NumHWThreads *IntRange `json:"numHWThreads"`

2
graph/schema.graphqls
View File

@ -179,6 +179,8 @@ input JobFilter {
partition: StringInput
duration: IntRange
minRunningFor: Int
numNodes: IntRange
numAccelerators: IntRange
numHWThreads: IntRange

6
graph/stats.go
View File

@ -23,6 +23,8 @@ var groupBy2column = map[model.Aggregate]string{
model.AggregateCluster: "job.cluster",
}
const ShortJobDuration int = 180
// Helper function for the jobsStatistics GraphQL query placed here so that schema.resolvers.go is not too full.
func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobFilter, groupBy *model.Aggregate) ([]*model.JobsStatistics, error) {
// In case `groupBy` is nil (not used), the model.JobsStatistics used is at the key '' (empty string)
@ -90,7 +92,7 @@ func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobF
}
if groupBy == nil {
query := sq.Select("COUNT(job.id)").From("job").Where("job.duration < 120")
query := sq.Select("COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
query = repository.SecurityCheck(ctx, query)
for _, f := range filter {
query = repository.BuildWhereClause(f, query)
@ -100,7 +102,7 @@ func (r *queryResolver) jobsStatistics(ctx context.Context, filter []*model.JobF
}
} else {
col := groupBy2column[*groupBy]
query := sq.Select(col, "COUNT(job.id)").From("job").Where("job.duration < 120")
query := sq.Select(col, "COUNT(job.id)").From("job").Where("job.duration < ?", ShortJobDuration)
query = repository.SecurityCheck(ctx, query)
for _, f := range filter {
query = repository.BuildWhereClause(f, query)

5
repository/query.go
View File

@ -60,6 +60,7 @@ func (r *JobRepository) QueryJobs(
for rows.Next() {
job, err := scanJob(rows)
if err != nil {
rows.Close()
return nil, err
}
jobs = append(jobs, job)
@ -126,6 +127,10 @@ func BuildWhereClause(filter *model.JobFilter, query sq.SelectBuilder) sq.Select
now := time.Now().Unix() // There does not seam to be a portable way to get the current unix timestamp accross different DBs.
query = query.Where("(CASE WHEN job.job_state = 'running' THEN (? - job.start_time) ELSE job.duration END) BETWEEN ? AND ?", now, filter.Duration.From, filter.Duration.To)
}
if filter.MinRunningFor != nil {
now := time.Now().Unix() // There does not seam to be a portable way to get the current unix timestamp accross different DBs.
query = query.Where("(job.job_state != 'running' OR (? - job.start_time) > ?)", now, *filter.MinRunningFor)
}
if filter.State != nil {
states := make([]string, len(filter.State))
for i, val := range filter.State {

7
repository/tags.go
View File

@ -1,8 +1,6 @@
package repository
import (
"fmt"
"github.com/ClusterCockpit/cc-backend/metricdata"
"github.com/ClusterCockpit/cc-backend/schema"
sq "github.com/Masterminds/squirrel"
@ -88,9 +86,8 @@ func (r *JobRepository) CountTags(user *string) (tags []schema.Tag, counts map[s
for rows.Next() {
var tagName string
var count int
err = rows.Scan(&tagName, &count)
if err != nil {
fmt.Println(err)
if err := rows.Scan(&tagName, &count); err != nil {
return nil, nil, err
}
counts[tagName] = count
}

5
routes.go
View File

@ -100,9 +100,10 @@ func setupRoutes(router *mux.Router, routes []Route) {
return
}
title := route.Title
infos := route.Setup(map[string]interface{}{}, r)
if id, ok := infos["id"]; ok {
route.Title = strings.Replace(route.Title, "<ID>", id.(string), 1)
title = strings.Replace(route.Title, "<ID>", id.(string), 1)
}
username, isAdmin := "", true
@ -112,7 +113,7 @@ func setupRoutes(router *mux.Router, routes []Route) {
}
page := templates.Page{
Title: route.Title,
Title: title,
User: templates.User{Username: username, IsAdmin: isAdmin},
Config: conf,
Infos: infos,

6
server.go
View File

@ -113,6 +113,7 @@ var programConfig ProgramConfig = ProgramConfig{
"plot_general_colorBackground": true,
"plot_general_colorscheme": []string{"#00bfff", "#0000ff", "#ff00ff", "#ff0000", "#ff8000", "#ffff00", "#80ff00"},
"plot_general_lineWidth": 1,
"plot_list_hideShortRunningJobs": 5 * 60,
"plot_list_jobsPerPage": 10,
"plot_list_selectedMetrics": []string{"cpu_load", "ipc", "mem_used", "flops_any", "mem_bw"},
"plot_view_plotsPerRow": 3,
@ -225,6 +226,7 @@ func setupTaglistRoute(i InfoType, r *http.Request) InfoType {
var routes []Route = []Route{
{"/", "home.tmpl", "ClusterCockpit", false, setupHomeRoute},
{"/config", "config.tmpl", "Settings", false, func(i InfoType, r *http.Request) InfoType { return i }},
{"/monitoring/jobs/", "monitoring/jobs.tmpl", "Jobs - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { return i }},
{"/monitoring/job/{id:[0-9]+}", "monitoring/job.tmpl", "Job <ID> - ClusterCockpit", false, setupJobRoute},
{"/monitoring/users/", "monitoring/list.tmpl", "Users - ClusterCockpit", true, func(i InfoType, r *http.Request) InfoType { i["listType"] = "USER"; return i }},
@ -295,8 +297,9 @@ func main() {
// Initialize sub-modules...
authentication := &auth.Authentication{}
var authentication *auth.Authentication
if !programConfig.DisableAuthentication {
authentication = &auth.Authentication{}
if d, err := time.ParseDuration(programConfig.SessionMaxAge); err != nil {
authentication.SessionMaxAge = d
}
@ -397,6 +400,7 @@ func main() {
JobRepository: jobRepo,
Resolver: resolver,
MachineStateDir: programConfig.MachineStateDir,
Authentication: authentication,
}
handleGetLogin := func(rw http.ResponseWriter, r *http.Request) {

234
templates/config.tmpl Normal file
View File

@ -0,0 +1,234 @@
{{define "content"}}
{{if .User.IsAdmin}}
<div class="row">
<div class="col card" style="margin: 10px;">
<form id="create-user-form" method="post" action="/api/users/" class="card-body">
<h5 class="card-title">Create User</h5>
<div class="mb-3">
<label for="name" class="form-label">Name</label>
<input type="text" class="form-control" id="name" name="name" aria-describedby="nameHelp"/>
<div id="nameHelp" class="form-text">Optional, can be blank.</div>
</div>
<div class="mb-3">
<label for="email" class="form-label">Email address</label>
<input type="email" class="form-control" id="email" name="email" aria-describedby="emailHelp"/>
<div id="emailHelp" class="form-text">Optional, can be blank.</div>
</div>
<div class="mb-3">
<label for="username" class="form-label">Username</label>
<input type="text" class="form-control" id="username" name="username" aria-describedby="usernameHelp"/>
<div id="usernameHelp" class="form-text">Must be unique.</div>
</div>
<div class="mb-3">
<label for="password" class="form-label">Password</label>
<input type="password" class="form-control" id="password" name="password" aria-describedby="passwordHelp"/>
<div id="passwordHelp" class="form-text">Only API users are allowed to have a blank password. Users with a blank password can only authenticate via Tokens.</div>
</div>
<div class="mb-3">
<p>Role:</p>
<div>
<input type="radio" id="user" name="role" value="user" checked/>
<label for="user">User (regular user, same as if created via LDAP sync.)</label>
</div>
<div>
<input type="radio" id="api" name="role" value="api"/>
<label for="api">API</label>
</div>
<div>
<input type="radio" id="admin" name="role" value="admin"/>
<label for="admin">Admin</label>
</div>
</div>
<p>
<code class="form-result"></code>
</p>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
<div class="col card" style="margin: 10px;">
<div class="card-body">
<h5 class="card-title">All Users not Created by an LDAP Sync:</h5>
<table class="table">
<thead>
<tr>
<th>Username</th>
<th>Name</th>
<th>Email</th>
<th>Roles</th>
<th>JWT</th>
<th>Delete</th>
</tr>
</thead>
<tbody id="users-list"><tr><td colspan="4"><div class="spinner-border" role="status"><span class="visually-hidden">Loading...</span></div></td></tr></tbody>
<script>
fetch('/api/users/?via-ldap=false')
.then(res => res.json())
.then(users => {
let listElement = document.querySelector('#users-list')
listElement.innerHTML = users.map(user => `
<tr id="user-${user.username}">
<td>${user.username}</td>
<td>${user.name}</td>
<td>${user.email}</td>
<td><code>${user.roles.join(', ')}</code></td>
<td><button class="btn btn-success get-jwt">Gen. JWT</button></td>
<td><button class="btn btn-danger del-user">Delete</button></td>
</tr>
`).join('')
listElement.querySelectorAll('button.get-jwt').forEach(e => e.addEventListener('click', event => {
let row = event.target.parentElement.parentElement
let username = row.children[0].innerText
let formData = new FormData()
formData.append('username', username)
fetch('/api/jwt/', { method: 'POST', body: formData })
.then(res => res.text())
.then(text => alert(text))
}))
listElement.querySelectorAll('button.del-user').forEach(e => e.addEventListener('click', event => {
let row = event.target.parentElement.parentElement
let username = row.children[0].innerText
if (confirm('Are you sure?')) {
let formData = new FormData()
formData.append('username', username)
fetch('/api/users/', { method: 'DELETE', body: formData }).then(res => {
if (res.status == 200) {
row.remove()
} else {
event.target.innerText = res.statusText
}
})
}
}))
})
</script>
</table>
</div>
</div>
</div>
{{end}}
<div class="row">
<div class="col card" style="margin: 10px;">
<form id="line-width-form" method="post" action="/api/configuration/" class="card-body">
<h5 class="card-title">Line Width</h5>
<input type="hidden" name="key" value="plot_general_lineWidth"/>
<div class="mb-3">
<label for="value" class="form-label">Line Width</label>
<input type="number" class="form-control" id="value" name="value" aria-describedby="lineWidthHelp" value="{{ .Config.plot_general_lineWidth }}" min="1"/>
<div id="lineWidthHelp" class="form-text">Width of the lines in the timeseries plots.</div>
</div>
<p>
<code class="form-result"></code>
</p>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
<div class="col card" style="margin: 10px;">
<form id="plots-per-row-form" method="post" action="/api/configuration/" class="card-body">
<h5 class="card-title">Plots per Row</h5>
<input type="hidden" name="key" value="plot_view_plotsPerRow"/>
<div class="mb-3">
<label for="value" class="form-label">Plots per Row</label>
<input type="number" class="form-control" id="value" name="value" aria-describedby="plotsperrowHelp" value="{{ .Config.plot_view_plotsPerRow }}" min="1"/>
<div id="plotsperrowHelp" class="form-text">How many plots to show next to each other on pages such as /monitoring/job/, /monitoring/system/...</div>
</div>
<p>
<code class="form-result"></code>
</p>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
<div class="col card" style="margin: 10px;">
<form id="backgrounds-form" method="post" action="/api/configuration/" class="card-body">
<h5 class="card-title">Colored Backgrounds</h5>
<input type="hidden" name="key" value="plot_general_colorBackground"/>
<div class="mb-3">
<div>
<input type="radio" id="true" name="value" value="true" {{if .Config.plot_general_colorBackground}}checked{{else}}{{end}} />
<label for="true">Yes</label>
</div>
<div>
<input type="radio" id="false" name="value" value="false" {{if .Config.plot_general_colorBackground}}{{else}}checked{{end}} />
<label for="false">No</label>
</div>
</div>
<p>
<code class="form-result"></code>
</p>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</div>
<div class="row">
<div class="col card" style="margin: 10px;">
<form id="colorscheme-form" method="post" action="/api/configuration/" class="card-body">
<h5 class="card-title">Colorscheme for Timeseries Plots</h5>
<input type="hidden" name="key" value="plot_general_colorscheme"/>
<style>
.color-dot {
height: 10px;
width: 10px;
border-radius: 50%;
display: inline-block;
}
</style>
<table class="table">
<script>
const colorschemes = {
'Default': ["#00bfff","#0000ff","#ff00ff","#ff0000","#ff8000","#ffff00","#80ff00"],
'Autumn': ['rgb(255,0,0)','rgb(255,11,0)','rgb(255,20,0)','rgb(255,30,0)','rgb(255,41,0)','rgb(255,50,0)','rgb(255,60,0)','rgb(255,71,0)','rgb(255,80,0)','rgb(255,90,0)','rgb(255,101,0)','rgb(255,111,0)','rgb(255,120,0)','rgb(255,131,0)','rgb(255,141,0)','rgb(255,150,0)','rgb(255,161,0)','rgb(255,171,0)','rgb(255,180,0)','rgb(255,190,0)','rgb(255,201,0)','rgb(255,210,0)','rgb(255,220,0)','rgb(255,231,0)','rgb(255,240,0)','rgb(255,250,0)'],
'Beach': ['rgb(0,252,0)','rgb(0,233,0)','rgb(0,212,0)','rgb(0,189,0)','rgb(0,169,0)','rgb(0,148,0)','rgb(0,129,4)','rgb(0,145,46)','rgb(0,162,90)','rgb(0,180,132)','rgb(29,143,136)','rgb(73,88,136)','rgb(115,32,136)','rgb(81,9,64)','rgb(124,51,23)','rgb(162,90,0)','rgb(194,132,0)','rgb(220,171,0)','rgb(231,213,0)','rgb(0,0,13)','rgb(0,0,55)','rgb(0,0,92)','rgb(0,0,127)','rgb(0,0,159)','rgb(0,0,196)','rgb(0,0,233)'],
'BlueRed': ['rgb(0,0,131)','rgb(0,0,168)','rgb(0,0,208)','rgb(0,0,247)','rgb(0,27,255)','rgb(0,67,255)','rgb(0,108,255)','rgb(0,148,255)','rgb(0,187,255)','rgb(0,227,255)','rgb(8,255,247)','rgb(48,255,208)','rgb(87,255,168)','rgb(127,255,127)','rgb(168,255,87)','rgb(208,255,48)','rgb(247,255,8)','rgb(255,224,0)','rgb(255,183,0)','rgb(255,143,0)','rgb(255,104,0)','rgb(255,64,0)','rgb(255,23,0)','rgb(238,0,0)','rgb(194,0,0)','rgb(150,0,0)'],
'Rainbow': ['rgb(125,0,255)','rgb(85,0,255)','rgb(39,0,255)','rgb(0,6,255)','rgb(0,51,255)','rgb(0,97,255)','rgb(0,141,255)','rgb(0,187,255)','rgb(0,231,255)','rgb(0,255,233)','rgb(0,255,189)','rgb(0,255,143)','rgb(0,255,99)','rgb(0,255,53)','rgb(0,255,9)','rgb(37,255,0)','rgb(83,255,0)','rgb(127,255,0)','rgb(173,255,0)','rgb(217,255,0)','rgb(255,248,0)','rgb(255,203,0)','rgb(255,159,0)','rgb(255,113,0)','rgb(255,69,0)','rgb(255,23,0)'],
'Binary': ['rgb(215,215,215)','rgb(206,206,206)','rgb(196,196,196)','rgb(185,185,185)','rgb(176,176,176)','rgb(166,166,166)','rgb(155,155,155)','rgb(145,145,145)','rgb(136,136,136)','rgb(125,125,125)','rgb(115,115,115)','rgb(106,106,106)','rgb(95,95,95)','rgb(85,85,85)','rgb(76,76,76)','rgb(66,66,66)','rgb(55,55,55)','rgb(46,46,46)','rgb(36,36,36)','rgb(25,25,25)','rgb(16,16,16)','rgb(6,6,6)'],
'GistEarth': ['rgb(0,0,0)','rgb(2,7,117)','rgb(9,30,118)','rgb(16,53,120)','rgb(23,73,122)','rgb(31,93,124)','rgb(39,110,125)','rgb(47,126,127)','rgb(51,133,119)','rgb(57,138,106)','rgb(62,145,94)','rgb(66,150,82)','rgb(74,157,71)','rgb(97,162,77)','rgb(121,168,83)','rgb(136,173,85)','rgb(153,176,88)','rgb(170,180,92)','rgb(185,182,94)','rgb(189,173,99)','rgb(192,164,101)','rgb(203,169,124)','rgb(215,178,149)','rgb(226,192,176)','rgb(238,212,204)','rgb(248,236,236)'],
'BlueWaves': ['rgb(83,0,215)','rgb(43,6,108)','rgb(9,16,16)','rgb(8,32,25)','rgb(0,50,8)','rgb(27,64,66)','rgb(69,67,178)','rgb(115,62,210)','rgb(155,50,104)','rgb(178,43,41)','rgb(180,51,34)','rgb(161,78,87)','rgb(124,117,187)','rgb(78,155,203)','rgb(34,178,85)','rgb(4,176,2)','rgb(9,152,27)','rgb(4,118,2)','rgb(34,92,85)','rgb(78,92,203)','rgb(124,127,187)','rgb(161,187,87)','rgb(180,248,34)','rgb(178,220,41)','rgb(155,217,104)','rgb(115,254,210)'],
'BlueGreenRedYellow': ['rgb(0,0,0)','rgb(0,0,20)','rgb(0,0,41)','rgb(0,0,62)','rgb(0,25,83)','rgb(0,57,101)','rgb(0,87,101)','rgb(0,118,101)','rgb(0,150,101)','rgb(0,150,69)','rgb(0,148,37)','rgb(0,141,6)','rgb(60,120,0)','rgb(131,87,0)','rgb(180,25,0)','rgb(203,13,0)','rgb(208,36,0)','rgb(213,60,0)','rgb(219,83,0)','rgb(224,106,0)','rgb(229,129,0)','rgb(233,152,0)','rgb(238,176,0)','rgb(243,199,0)','rgb(248,222,0)','rgb(254,245,0)']
};
for (const name in colorschemes) {
const colorscheme = colorschemes[name]
const json = JSON.stringify(colorscheme)
const checked = json == `{{ .Config.plot_general_colorscheme }}`
document.write(
`<tr>
<th scope="col">${name}</th>
<td>
<input type="radio" name="value" value='${json}' ${checked ? 'checked' : ''}/>
</td>
<td>${colorscheme.map(color => `<span class="color-dot" style="background-color: ${color};"></span>`).join('')}</td>
</tr>`)
}
</script>
</table>
<p>
<code class="form-result"></code>
</p>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
</div>
</div>
<script>
const handleSubmit = (formSel) => {
let form = document.querySelector(formSel)
form.addEventListener('submit', event => {
event.preventDefault()
let formData = new FormData(form)
fetch(form.action, { method: 'POST', body: formData })
.then(res => res.text())
.then(text => form.querySelector('.form-result').innerText = text)
.catch(err => form.querySelector('.form-result').innerText = err.toString())
return false
})
}
handleSubmit('#create-user-form')
handleSubmit('#line-width-form')
handleSubmit('#plots-per-row-form')
handleSubmit('#backgrounds-form')
handleSubmit('#colorscheme-form')
</script>
{{end}}

1
templates/templates.go
View File

@ -41,6 +41,7 @@ func init() {
files := []string{
"home.tmpl", "404.tmpl", "login.tmpl",
"imprint.tmpl", "privacy.tmpl",
"config.tmpl",
"monitoring/jobs.tmpl",
"monitoring/job.tmpl",
"monitoring/taglist.tmpl",