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wakapi/routes/compat/shields/v1/badge.go

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package v1
import (
"fmt"
"net/http"
"regexp"
"time"
"github.com/gorilla/mux"
conf "github.com/muety/wakapi/config"
"github.com/muety/wakapi/models"
v1 "github.com/muety/wakapi/models/compat/shields/v1"
"github.com/muety/wakapi/services"
"github.com/muety/wakapi/utils"
"github.com/patrickmn/go-cache"
)
const (
intervalPattern = `interval:([a-z0-9_]+)`
entityFilterPattern = `(project|os|editor|language|machine):([_a-zA-Z0-9-\s]+)`
)
type BadgeHandler struct {
config *conf.Config
userSrvc services.IUserService
summarySrvc services.ISummaryService
cache *cache.Cache
}
func NewBadgeHandler(summaryService services.ISummaryService, userService services.IUserService) *BadgeHandler {
return &BadgeHandler{
summarySrvc: summaryService,
userSrvc: userService,
cache: cache.New(time.Hour, time.Hour),
config: conf.Get(),
}
}
func (h *BadgeHandler) RegisterRoutes(router *mux.Router) {
// no auth middleware here, handler itself resolves the user
r := router.PathPrefix("/compat/shields/v1/{user}").Subrouter()
r.Methods(http.MethodGet).HandlerFunc(h.Get)
}
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// @Summary Get badge data
// @Description Retrieve total time for a given entity (e.g. a project) within a given range (e.g. one week) in a format compatible with [Shields.io](https://shields.io/endpoint). Requires public data access to be allowed.
// @ID get-badge
// @Tags badges
// @Produce json
// @Param user path string true "User ID to fetch data for"
// @Param interval path string true "Interval to aggregate data for" Enums(today, yesterday, week, month, year, 7_days, last_7_days, 30_days, last_30_days, 12_months, last_12_months, any)
// @Param filter path string true "Filter to apply (e.g. 'project:wakapi' or 'language:Go')"
// @Success 200 {object} v1.BadgeData
// @Router /compat/shields/v1/{user}/{interval}/{filter} [get]
func (h *BadgeHandler) Get(w http.ResponseWriter, r *http.Request) {
intervalReg := regexp.MustCompile(intervalPattern)
entityFilterReg := regexp.MustCompile(entityFilterPattern)
var filterEntity, filterKey string
if groups := entityFilterReg.FindStringSubmatch(r.URL.Path); len(groups) > 2 {
filterEntity, filterKey = groups[1], groups[2]
}
var interval = models.IntervalPast30Days
if groups := intervalReg.FindStringSubmatch(r.URL.Path); len(groups) > 1 {
if i, err := utils.ParseInterval(groups[1]); err == nil {
interval = i
}
}
requestedUserId := mux.Vars(r)["user"]
user, err := h.userSrvc.GetUserById(requestedUserId)
if err != nil {
w.WriteHeader(http.StatusNotFound)
return
}
_, rangeFrom, rangeTo := utils.ResolveIntervalTZ(interval, user.TZ())
minStart := rangeTo.Add(-24 * time.Hour * time.Duration(user.ShareDataMaxDays))
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// negative value means no limit
if rangeFrom.Before(minStart) && user.ShareDataMaxDays >= 0 {
w.WriteHeader(http.StatusForbidden)
w.Write([]byte("requested time range too broad"))
return
}
var permitEntity bool
var filters *models.Filters
switch filterEntity {
case "project":
permitEntity = user.ShareProjects
filters = models.NewFiltersWith(models.SummaryProject, filterKey)
case "os":
permitEntity = user.ShareOSs
filters = models.NewFiltersWith(models.SummaryOS, filterKey)
case "editor":
permitEntity = user.ShareEditors
filters = models.NewFiltersWith(models.SummaryEditor, filterKey)
case "language":
permitEntity = user.ShareLanguages
filters = models.NewFiltersWith(models.SummaryLanguage, filterKey)
case "machine":
permitEntity = user.ShareMachines
filters = models.NewFiltersWith(models.SummaryMachine, filterKey)
case "label":
permitEntity = user.ShareLabels
filters = models.NewFiltersWith(models.SummaryLabel, filterKey)
default:
permitEntity = true
filters = &models.Filters{}
}
if !permitEntity {
w.WriteHeader(http.StatusForbidden)
w.Write([]byte("user did not opt in to share entity-specific data"))
return
}
cacheKey := fmt.Sprintf("%s_%v_%s_%s", user.ID, *interval, filterEntity, filterKey)
if cacheResult, ok := h.cache.Get(cacheKey); ok {
utils.RespondJSON(w, r, http.StatusOK, cacheResult.(*v1.BadgeData))
return
}
summary, err, status := h.loadUserSummary(user, interval)
if err != nil {
w.WriteHeader(status)
w.Write([]byte(err.Error()))
return
}
vm := v1.NewBadgeDataFrom(summary, filters)
h.cache.SetDefault(cacheKey, vm)
utils.RespondJSON(w, r, http.StatusOK, vm)
}
func (h *BadgeHandler) loadUserSummary(user *models.User, interval *models.IntervalKey) (*models.Summary, error, int) {
err, from, to := utils.ResolveIntervalTZ(interval, user.TZ())
if err != nil {
return nil, err, http.StatusBadRequest
}
summaryParams := &models.SummaryParams{
From: from,
To: to,
User: user,
}
var retrieveSummary services.SummaryRetriever = h.summarySrvc.Retrieve
if summaryParams.Recompute {
retrieveSummary = h.summarySrvc.Summarize
}
summary, err := h.summarySrvc.Aliased(summaryParams.From, summaryParams.To, summaryParams.User, retrieveSummary, summaryParams.Recompute)
if err != nil {
return nil, err, http.StatusInternalServerError
}
return summary, nil, http.StatusOK
}