kennel (#13)

Reviewed-on: #13
Co-authored-by: Elizabeth Hunt <elizabeth@simponic.xyz>
Co-committed-by: Elizabeth Hunt <elizabeth@simponic.xyz>

adapters/files/files_adapter.go

@@ -4,5 +4,6 @@ import "io"
 
 type FilesAdapter interface {
 	CreateFile(path string, content io.Reader) (string, error)
+	FileExists(path string) bool
 	DeleteFile(path string) error
 }

adapters/files/filesystem/filesystem.go

@@ -35,3 +35,8 @@ func (f *FilesystemAdapter) CreateFile(path string, content io.Reader) (string,
 func (f *FilesystemAdapter) DeleteFile(path string) error {
 	return os.Remove(f.BasePath + path)
 }
+
+func (f *FilesystemAdapter) FileExists(path string) bool {
+	_, err := os.Stat(f.BasePath + path)
+	return err == nil
+}

api/kennel/kennel.go

@@ -0,0 +1,238 @@
+package kennel
+
+import (
+	"encoding/json"
+	"log"
+	"net/http"
+	"strings"
+
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/adapters/files"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/types"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/database"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/utils"
+)
+
+const MaxCatSize = 1024 * 100 // 60KB
+const CatsPath = "cats/"
+const CatsPrefix = "/uploads/cats/"
+const DefaultCatSpritesheet = "/static/img/cat_spritesheets/default.gif"
+const MaxUserCats = 15
+
+func ListUserCatsContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+		userID := context.User.ID
+
+		cats, err := database.GetUserKennelCats(context.DBConn, userID)
+		if err != nil {
+			log.Println(err)
+			resp.WriteHeader(http.StatusInternalServerError)
+			return failure(context, req, resp)
+		}
+
+		(*context.TemplateData)["Cats"] = cats
+		return success(context, req, resp)
+	}
+}
+
+func CreateCatContinuation(fileAdapter files.FilesAdapter, maxUserCats int, maxCatSize int, catsPath string, catsPrefix string, defaultCatSpritesheet string) func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+		return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+			formErrors := types.BannerMessages{
+				Messages: []string{},
+			}
+
+			numCats, err := database.CountUserKennelCats(context.DBConn, context.User.ID)
+			if err != nil {
+				log.Println(err)
+				resp.WriteHeader(http.StatusInternalServerError)
+				return failure(context, req, resp)
+			}
+			if numCats >= maxUserCats {
+				formErrors.Messages = append(formErrors.Messages, "max cats reached for user")
+			}
+
+			err = req.ParseMultipartForm(int64(maxCatSize))
+			if err != nil {
+				formErrors.Messages = append(formErrors.Messages, "cat spritesheet too large")
+			}
+
+			catID := utils.RandomId()
+			spritesheetPath := catsPrefix + catID
+
+			if len(formErrors.Messages) == 0 {
+				file, _, err := req.FormFile("spritesheet")
+				if file != nil && err != nil {
+					formErrors.Messages = append(formErrors.Messages, "error uploading spritesheet")
+				} else if file != nil {
+					defer file.Close()
+					reader := http.MaxBytesReader(resp, file, int64(maxCatSize))
+					defer reader.Close()
+
+					_, err = fileAdapter.CreateFile(catsPath+catID, reader)
+					if err != nil {
+						log.Println(err)
+						formErrors.Messages = append(formErrors.Messages, "error saving spritesheet (is it too big?)")
+					}
+				} else if file == nil && err != nil {
+					spritesheetPath = defaultCatSpritesheet
+				}
+			}
+
+			link := req.FormValue("link")
+			description := req.FormValue("description")
+			name := req.FormValue("name")
+
+			cat := &database.KennelCat{
+				ID:          catID,
+				UserID:      context.User.ID,
+				Name:        name,
+				Link:        link,
+				Description: description,
+				Spritesheet: spritesheetPath,
+			}
+			formErrors.Messages = append(formErrors.Messages, validateCat(cat)...)
+			if len(formErrors.Messages) == 0 {
+				_, err := database.SaveKennelCat(context.DBConn, cat)
+				if err != nil {
+					log.Println(err)
+					formErrors.Messages = append(formErrors.Messages, "failed to save cat")
+				}
+			}
+
+			if len(formErrors.Messages) > 0 {
+				(*context.TemplateData)["Error"] = formErrors
+				(*context.TemplateData)["CatForm"] = cat
+				resp.WriteHeader(http.StatusBadRequest)
+
+				return failure(context, req, resp)
+			}
+
+			formSuccess := types.BannerMessages{
+				Messages: []string{"cat added."},
+			}
+			(*context.TemplateData)["Success"] = formSuccess
+			return success(context, req, resp)
+		}
+	}
+}
+
+func RemoveCatContinuation(fileAdapter files.FilesAdapter, catsPath string) func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+		return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+			catID := req.FormValue("id")
+
+			cat, err := database.GetKennelCat(context.DBConn, catID)
+			if err != nil {
+				log.Println(err)
+				resp.WriteHeader(http.StatusInternalServerError)
+				return failure(context, req, resp)
+			}
+			if cat == nil || cat.UserID != context.User.ID {
+				resp.WriteHeader(http.StatusUnauthorized)
+				return failure(context, req, resp)
+			}
+
+			err = database.DeleteKennelCat(context.DBConn, catID)
+			if err != nil {
+				log.Println(err)
+				resp.WriteHeader(http.StatusInternalServerError)
+				return failure(context, req, resp)
+			}
+
+			err = fileAdapter.DeleteFile(catsPath + catID)
+			if err != nil && fileAdapter.FileExists(catsPath+catID) {
+				log.Println(err)
+				resp.WriteHeader(http.StatusInternalServerError)
+				return failure(context, req, resp)
+			}
+
+			return success(context, req, resp)
+		}
+	}
+}
+
+func RingContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+		order := req.URL.Query().Get("order")
+
+		if order == "random" {
+			kennelCat, err := database.GetRandomKennelCat(context.DBConn)
+			if err != nil {
+				log.Println(err)
+				resp.WriteHeader(http.StatusInternalServerError)
+				return failure(context, req, resp)
+			}
+			http.Redirect(resp, req, kennelCat.Link, http.StatusFound)
+			return success(context, req, resp)
+		}
+
+		id := req.URL.Query().Get("id")
+		if id == "" {
+			resp.WriteHeader(http.StatusBadRequest)
+			return failure(context, req, resp)
+		}
+		if order != "random" && order != "next" && order != "prev" {
+			kennelCat, err := database.GetKennelCat(context.DBConn, id)
+			if err != nil {
+				log.Println(err)
+				resp.WriteHeader(http.StatusNotFound)
+				return failure(context, req, resp)
+			}
+			http.Redirect(resp, req, kennelCat.Link, http.StatusFound)
+			return success(context, req, resp)
+		}
+
+		nextCat, err := database.GetNextKennelCat(context.DBConn, id, order == "next")
+		if err != nil {
+			log.Println(err)
+			resp.WriteHeader(http.StatusInternalServerError)
+			return failure(context, req, resp)
+		}
+
+		http.Redirect(resp, req, nextCat.Link, http.StatusFound)
+		return success(context, req, resp)
+	}
+}
+
+func GetKennelContinuation(context *types.RequestContext, req *http.Request, resp http.ResponseWriter) types.ContinuationChain {
+	return func(success types.Continuation, failure types.Continuation) types.ContinuationChain {
+		cats, err := database.GetKennel(context.DBConn)
+		if err != nil {
+			log.Println(err)
+			resp.WriteHeader(http.StatusInternalServerError)
+			return failure(context, req, resp)
+		}
+		json, err := json.Marshal(cats)
+		if err != nil {
+			log.Println(err)
+			resp.WriteHeader(http.StatusInternalServerError)
+			return failure(context, req, resp)
+		}
+
+		resp.Header().Set("Content-Type", "application/json")
+		resp.Write(json)
+		return success(context, req, resp)
+	}
+}
+
+func validateCat(cat *database.KennelCat) []string {
+	errors := []string{}
+
+	if cat.Name == "" {
+		errors = append(errors, "name is required")
+	}
+	if cat.Link == "" {
+		errors = append(errors, "link is required")
+	}
+	if !strings.HasPrefix(cat.Link, "http://") && !strings.HasPrefix(cat.Link, "https://") {
+		errors = append(errors, "link must be a valid URL")
+	}
+	if cat.Description == "" {
+		errors = append(errors, "description is required")
+	}
+	if len(cat.Description) > 100 {
+		errors = append(errors, "description must be less than 100 characters")
+	}
+
+	return errors
+}

api/serve.go

@@ -13,6 +13,7 @@ import (
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/dns"
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/guestbook"
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/hcaptcha"
+	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/kennel"
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/keys"
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/profiles"
 	"git.hatecomputers.club/hatecomputers/hatecomputers.club/api/template"
@@ -172,10 +173,38 @@ func MakeServer(argv *args.Arguments, dbConn *sql.DB) *http.Server {
 		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(hcaptcha.CaptchaVerificationContinuation, hcaptcha.CaptchaVerificationContinuation)(guestbook.SignGuestbookContinuation, FailurePassingContinuation)(guestbook.ListGuestbookContinuation, guestbook.ListGuestbookContinuation)(hcaptcha.CaptchaArgsContinuation, hcaptcha.CaptchaArgsContinuation)(template.TemplateContinuation("guestbook.html", true), template.TemplateContinuation("guestbook.html", true))(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
 	})
 
-	mux.HandleFunc("GET /{name}", func(w http.ResponseWriter, r *http.Request) {
+	mux.HandleFunc("GET /kennel/", func(w http.ResponseWriter, r *http.Request) {
 		requestContext := makeRequestContext()
-		name := r.PathValue("name")
+		LogRequestContinuation(requestContext, r, w)(kennel.GetKennelContinuation, FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
-		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(IdContinuation, IdContinuation)(template.TemplateContinuation(name+".html", true), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
+	})
+
+	mux.HandleFunc("GET /kennel/cat", func(w http.ResponseWriter, r *http.Request) {
+		requestContext := makeRequestContext()
+		LogRequestContinuation(requestContext, r, w)(kennel.RingContinuation, FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
+	})
+
+	mux.HandleFunc("GET /kennel/cats", func(w http.ResponseWriter, r *http.Request) {
+		requestContext := makeRequestContext()
+		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(kennel.ListUserCatsContinuation, auth.GoLoginContinuation)(template.TemplateContinuation("kennel_cats.html", true), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
+	})
+
+	mux.HandleFunc("POST /kennel/cats", func(w http.ResponseWriter, r *http.Request) {
+		requestContext := makeRequestContext()
+		createCatContinuation := kennel.CreateCatContinuation(uploadAdapter, kennel.MaxUserCats, kennel.MaxCatSize, kennel.CatsPath, kennel.CatsPrefix, kennel.DefaultCatSpritesheet)
+		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(createCatContinuation, FailurePassingContinuation)(kennel.ListUserCatsContinuation, kennel.ListUserCatsContinuation)(template.TemplateContinuation("kennel_cats.html", true), template.TemplateContinuation("kennel_cats.html", true))(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
+	})
+
+	mux.HandleFunc("POST /kennel/cats/delete", func(w http.ResponseWriter, r *http.Request) {
+		requestContext := makeRequestContext()
+		deleteCatContinuation := kennel.RemoveCatContinuation(uploadAdapter, kennel.CatsPath)
+
+		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(deleteCatContinuation, FailurePassingContinuation)(kennel.ListUserCatsContinuation, FailurePassingContinuation)(template.TemplateContinuation("kennel_cats.html", true), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
+	})
+
+	mux.HandleFunc("GET /{template}", func(w http.ResponseWriter, r *http.Request) {
+		requestContext := makeRequestContext()
+		templateFile := r.PathValue("template")
+		LogRequestContinuation(requestContext, r, w)(auth.VerifySessionContinuation, FailurePassingContinuation)(IdContinuation, IdContinuation)(template.TemplateContinuation(templateFile+".html", true), FailurePassingContinuation)(LogExecutionTimeContinuation, LogExecutionTimeContinuation)(IdContinuation, IdContinuation)
 	})
 
 	return &http.Server{

database/kennel.go

@@ -0,0 +1,159 @@
+package database
+
+import (
+	"database/sql"
+	_ "github.com/mattn/go-sqlite3"
+	"log"
+	"time"
+)
+
+type KennelCat struct {
+	ID          string    `json:"id"`
+	UserID      string    `json:"user_id"`
+	Name        string    `json:"name"`
+	Link        string    `json:"link"`
+	Description string    `json:"description"`
+	Spritesheet string    `json:"spritesheet"`
+	CreatedAt   time.Time `json:"created_at"`
+}
+
+type KennelState struct {
+	At           time.Time `json:"at"`
+	EncodedState string    `json:"state"`
+}
+
+func CountUserKennelCats(db *sql.DB, userID string) (int, error) {
+	log.Println("counting kennel cats for user", userID)
+
+	row := db.QueryRow("SELECT COUNT(*) FROM kennel_cat WHERE user_id = ?", userID)
+	var count int
+	err := row.Scan(&count)
+	if err != nil {
+		return 0, err
+	}
+	return count, nil
+}
+
+func GetUserKennelCats(db *sql.DB, userID string) ([]KennelCat, error) {
+	log.Println("getting kennel cats for user", userID)
+
+	rows, err := db.Query("SELECT * FROM kennel_cat WHERE user_id = ?", userID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var cats []KennelCat
+	for rows.Next() {
+		var cat KennelCat
+		err := rows.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+		if err != nil {
+			return nil, err
+		}
+		cats = append(cats, cat)
+	}
+
+	return cats, nil
+}
+
+func SaveKennelCat(db *sql.DB, cat *KennelCat) (*KennelCat, error) {
+	log.Println("saving kennel cat", cat.ID)
+
+	if (cat.CreatedAt == time.Time{}) {
+		cat.CreatedAt = time.Now()
+	}
+
+	_, err := db.Exec("INSERT OR REPLACE INTO kennel_cat (id, user_id, name, link, description, spritesheet, created_at) VALUES (?, ?, ?, ?, ?, ?, ?)", cat.ID, cat.UserID, cat.Name, cat.Link, cat.Description, cat.Spritesheet, cat.CreatedAt)
+
+	if err != nil {
+		return nil, err
+	}
+	return cat, nil
+}
+
+func GetKennelCat(db *sql.DB, catID string) (*KennelCat, error) {
+	log.Println("getting kennel cat", catID)
+
+	row := db.QueryRow("SELECT * FROM kennel_cat WHERE id = ?", catID)
+	var cat KennelCat
+	err := row.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return &cat, nil
+}
+
+func DeleteKennelCat(db *sql.DB, catID string) error {
+	log.Println("deleting kennel cat", catID)
+
+	_, err := db.Exec("DELETE FROM kennel_cat WHERE id = ?", catID)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func GetRandomKennelCat(dbConn *sql.DB) (*KennelCat, error) {
+	log.Println("getting random kennel cat")
+
+	row := dbConn.QueryRow("SELECT * FROM kennel_cat ORDER BY RANDOM() LIMIT 1")
+	var cat KennelCat
+	err := row.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+	if err != nil {
+		return nil, err
+	}
+	return &cat, nil
+}
+
+func GetNextKennelCat(dbConn *sql.DB, lastID string, next bool) (*KennelCat, error) {
+	log.Println("getting next kennel cat")
+
+	operation := ">"
+	sorted := "ASC"
+	if !next {
+		operation = "<"
+		sorted = "DESC"
+	}
+
+	row := dbConn.QueryRow("SELECT * FROM kennel_cat WHERE id "+operation+" ? ORDER BY id "+sorted+" LIMIT 1", lastID)
+
+	var cat KennelCat
+	err := row.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+	if err != nil {
+		if next {
+			// loop "back" to the first in the ring
+			row = dbConn.QueryRow("SELECT * FROM kennel_cat ORDER BY id ASC LIMIT 1")
+		} else {
+			// loop "forward" to the first in the ring
+			row = dbConn.QueryRow("SELECT * FROM kennel_cat ORDER BY id DESC LIMIT 1")
+		}
+		err = row.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return &cat, nil
+}
+
+func GetKennel(dbConn *sql.DB) ([]KennelCat, error) {
+	log.Println("getting kennel")
+
+	rows, err := dbConn.Query("SELECT * FROM kennel_cat")
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var cats []KennelCat
+	for rows.Next() {
+		var cat KennelCat
+		err := rows.Scan(&cat.ID, &cat.Name, &cat.UserID, &cat.Link, &cat.Description, &cat.Spritesheet, &cat.CreatedAt)
+		if err != nil {
+			return nil, err
+		}
+		cats = append(cats, cat)
+	}
+
+	return cats, nil
+}

database/migrate.go

@@ -162,6 +162,26 @@ func MigrateProfiles(dbConn *sql.DB) (*sql.DB, error) {
 	return dbConn, nil
 }
 
+func MigrateKennel(dbConn *sql.DB) (*sql.DB, error) {
+	log.Println("migrating kennel tables")
+
+	_, err := dbConn.Exec(`CREATE TABLE IF NOT EXISTS kennel_cat (
+                id TEXT PRIMARY KEY,
+                name TEXT NOT NULL,
+		user_id INTEGER NOT NULL,
+                link TEXT NOT NULL,
+                description TEXT NOT NULL,
+                spritesheet TEXT NOT NULL,
+		created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+		FOREIGN KEY (user_id) REFERENCES users (id) ON DELETE CASCADE
+	);`)
+	if err != nil {
+		return dbConn, err
+	}
+
+	return dbConn, nil
+}
+
 func Migrate(dbConn *sql.DB) (*sql.DB, error) {
 	log.Println("migrating database")
 
@@ -173,6 +193,7 @@ func Migrate(dbConn *sql.DB) (*sql.DB, error) {
 		MigrateDNSRecords,
 		MigrateGuestBook,
 		MigrateProfiles,
+		MigrateKennel,
 	}
 
 	for _, migration := range migrations {

static/css/colors.css

@@ -7,6 +7,7 @@
   --container-bg-light: #fff7f87a;
   --border-color-light: #692fcc;
   --error-color-light: #a83254;
+  --tr-color-light: #8bcefa;
 
   --background-color-dark: #333;
   --background-color-dark-2: #2c2c2c;
@@ -16,6 +17,7 @@
   --container-bg-dark: #424242ea;
   --border-color-dark: #956ade;
   --error-color-dark: #851736;
+  --tr-color-dark: #212a6a;
 }
 
 [data-theme="DARK"] {
@@ -27,6 +29,7 @@
   --border-color: var(--border-color-dark);
   --error-color: var(--error-color-dark);
   --confirm-color: var(--confirm-color-dark);
+  --tr-color: var(--tr-color-dark);
 }
 
 [data-theme="LIGHT"] {
@@ -38,6 +41,7 @@
   --border-color: var(--border-color-light);
   --error-color: var(--error-color-light);
   --confirm-color: var(--confirm-color-light);
+  --tr-color: var(--tr-color-light);
 }
 
 .error {

static/css/table.css

@@ -26,6 +26,6 @@ tbody tr {
 }
 
 tbody tr:hover {
-  background-color: #ff47daa0;
+  background-color: var(--tr-color);
   color: #2a2a2a;
 }

templates/base.html

@@ -35,6 +35,8 @@
 	<span> | </span>
 	<a href="/keys">api keys.</a>
 	<span> | </span>
+        <a href="/kennel/cats">kennel.</a>
+	<span> | </span>
 	<a href="/profile">{{ .User.DisplayName }}.</a>
 	<span> | </span>
 	<a href="/logout">logout.</a>

templates/dns.html

@@ -37,7 +37,7 @@
     <p>note that the name <em>must</em> be a subdomain of <em>{{ .User.Username }}</em></p>
     <hr>
     <label for="type">type.</label>
-    <input type="text" name="type" placeholder="CNAME"
+    <input type="text" name="type"
 	   {{ if not .RecordForm }}
 	   placeholder="CNAME"
 	   {{ else }}

templates/kennel_cats.html

@@ -0,0 +1,66 @@
+{{ define "content" }}
+  <table>
+    <tr>
+      <th>name.</th>
+      <th>link.</th>
+      <th>description.</th>
+      <th>spritesheet.</th>
+      <th>created at.</th>
+      <th>remove.</th>
+    </tr>
+    {{ if (eq (len .Cats) 0) }}
+    <tr>
+      <td colspan="6"><span class="blinky">no cats found</span></td>
+    </tr>
+    {{ end }}
+    {{ range $cat := .Cats }}
+      <tr>
+	<td>{{ $cat.Name }}</td>
+	<td><a href="{{ $cat.Link }}">{{ $cat.Link }}</a></td>
+	<td>{{ $cat.Description }}</td>
+	<td><a href="{{ $cat.Spritesheet }}"><img width="100" src="{{ $cat.Spritesheet }}"></a></td>
+	<td class="time">{{ $cat.CreatedAt }}</td>
+	<td>
+	  <form method="POST" action="/kennel/cats/delete">
+	    <input type="hidden" name="id" value="{{ $cat.ID }}" />
+	    <input type="submit" value="remove." />
+	  </form>
+	</td>
+      </tr>
+    {{ end }}
+  </table>
+  <br>
+  <form method="POST" action="/kennel/cats" class="form" enctype="multipart/form-data">
+    <h2>add cat.</h2>
+    <hr>
+    <label for="name">name.</label>
+    <input type="text" name="name" id="name"
+	   {{ if not .CatForm }}
+	   placeholder="wallace."
+	   {{ else }}
+	   value="{{ .CatForm.Name }}"
+	   {{ end }}
+	   />
+    <label for="description">description.</label>
+    <input type="text" name="description" id="description"
+	   {{ if not .CatForm }}
+	   placeholder="a cat."
+	   {{ else }}
+	   value="{{ .CatForm.Description }}"
+	   {{ end }}
+	   />
+    <label for="link">link.</label>
+    <input type="text" name="link" id="link"
+	   {{ if not .CatForm }}
+	   placeholder="https://hatecomputers.club"
+	   {{ else }}
+	   value="{{ .CatForm.Link }}"
+	   {{ end }}/>
+
+    <label for="spritesheet" style="margin:0">spritesheet.</label>
+    <h6>if not specified, will use <a href="/static/img/cat_spritesheets/default.gif">the default</a>. check it out for the format we expect. max 50KB.</h6>
+    <input type="file" name="spritesheet" id="spritesheet" />
+
+    <input type="submit" value="mrow." />
+  </form>
+{{ end }}