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image.go
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image.go
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// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
// See LICENSE.txt for license information.
package api4
import (
"net/http"
"net/url"
"github.com/mattermost/mattermost-server/v6/model"
)
func (api *API) InitImage() {
api.BaseRoutes.Image.Handle("", api.APISessionRequiredTrustRequester(getImage)).Methods("GET")
}
func getImage(c *Context, w http.ResponseWriter, r *http.Request) {
actualURL := r.URL.Query().Get("url")
parsedURL, err := url.Parse(actualURL)
if err != nil {
c.Err = model.NewAppError("getImage", "api.image.get.app_error", nil, err.Error(), http.StatusBadRequest)
return
} else if parsedURL.Opaque != "" {
c.Err = model.NewAppError("getImage", "api.image.get.app_error", nil, "", http.StatusBadRequest)
return
}
siteURL, err := url.Parse(*c.App.Config().ServiceSettings.SiteURL)
if err != nil {
c.Err = model.NewAppError("getImage", "model.config.is_valid.site_url.app_error", nil, err.Error(), http.StatusInternalServerError)
return
}
if parsedURL.Scheme == "" {
parsedURL.Scheme = siteURL.Scheme
}
if parsedURL.Host == "" {
parsedURL.Host = siteURL.Host
}
// in case image proxy is enabled and we are fetching a remote image (NOT static or served by plugins), pass request to proxy
if *c.App.Config().ImageProxySettings.Enable && parsedURL.Host != siteURL.Host {
c.App.ImageProxy().GetImage(w, r, parsedURL.String())
} else {
http.Redirect(w, r, parsedURL.String(), http.StatusFound)
}
}