Domain block (#76)

* start work on admin domain blocking

* move stuff around + further work on domain blocks

* move + restructure processor

* prep work for deleting account

* tidy

* go fmt

* formatting

* domain blocking more work

* check domain blocks way earlier on

* progress on delete account

* delete more stuff when an account is gone

* and more...

* domain blocky block block

* get individual domain block, delete a block

internal/api/client/admin/domainblockcreate.go

@@ -0,0 +1,70 @@
+package admin
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+	"github.com/sirupsen/logrus"
+	"github.com/superseriousbusiness/gotosocial/internal/api/model"
+	"github.com/superseriousbusiness/gotosocial/internal/oauth"
+)
+
+// DomainBlocksPOSTHandler deals with the creation of a new domain block.
+func (m *Module) DomainBlocksPOSTHandler(c *gin.Context) {
+	l := m.log.WithFields(logrus.Fields{
+		"func":        "DomainBlocksPOSTHandler",
+		"request_uri": c.Request.RequestURI,
+		"user_agent":  c.Request.UserAgent(),
+		"origin_ip":   c.ClientIP(),
+	})
+
+	// make sure we're authed with an admin account
+	authed, err := oauth.Authed(c, true, true, true, true)
+	if err != nil {
+		l.Debugf("couldn't auth: %s", err)
+		c.JSON(http.StatusForbidden, gin.H{"error": err.Error()})
+		return
+	}
+	if !authed.User.Admin {
+		l.Debugf("user %s not an admin", authed.User.ID)
+		c.JSON(http.StatusForbidden, gin.H{"error": "not an admin"})
+		return
+	}
+
+	// extract the media create form from the request context
+	l.Tracef("parsing request form: %+v", c.Request.Form)
+	form := &model.DomainBlockCreateRequest{}
+	if err := c.ShouldBind(form); err != nil {
+		l.Debugf("error parsing form %+v: %s", c.Request.Form, err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("could not parse form: %s", err)})
+		return
+	}
+
+	// Give the fields on the request form a first pass to make sure the request is superficially valid.
+	l.Tracef("validating form %+v", form)
+	if err := validateCreateDomainBlock(form); err != nil {
+		l.Debugf("error validating form: %s", err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	domainBlock, err := m.processor.AdminDomainBlockCreate(authed, form)
+	if err != nil {
+		l.Debugf("error creating domain block: %s", err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, domainBlock)
+}
+
+func validateCreateDomainBlock(form *model.DomainBlockCreateRequest) error {
+	// add some more validation here later if necessary
+	if form.Domain == "" {
+		return errors.New("empty domain provided")
+	}
+
+	return nil
+}