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53 lines
1.7 KiB
Go
53 lines
1.7 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package api4
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import (
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"net/http"
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"net/url"
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"github.com/mattermost/mattermost/server/public/model"
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)
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func (api *API) InitImage() {
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api.BaseRoutes.Image.Handle("", api.APISessionRequiredTrustRequester(getImage)).Methods(http.MethodGet)
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}
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func getImage(c *Context, w http.ResponseWriter, r *http.Request) {
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actualURL := r.URL.Query().Get("url")
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parsedURL, err := url.Parse(actualURL)
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if err != nil {
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c.Err = model.NewAppError("getImage", "api.image.get.app_error", nil, "", http.StatusBadRequest).Wrap(err)
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return
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} else if parsedURL.Opaque != "" {
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c.Err = model.NewAppError("getImage", "api.image.get.app_error", nil, "", http.StatusBadRequest)
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return
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}
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siteURL, err := url.Parse(*c.App.Config().ServiceSettings.SiteURL)
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if err != nil {
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c.Err = model.NewAppError("getImage", "model.config.is_valid.site_url.app_error", nil, "", http.StatusInternalServerError).Wrap(err)
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return
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}
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if parsedURL.Scheme == "" {
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parsedURL.Scheme = siteURL.Scheme
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}
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if parsedURL.Host == "" {
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parsedURL.Host = siteURL.Host
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}
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if *c.App.Config().ImageProxySettings.Enable {
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// in case image proxy is enabled and we are fetching a remote image (NOT static or served by plugins), pass request to proxy
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if parsedURL.Host != siteURL.Host {
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c.App.ImageProxy().GetImage(w, r, parsedURL.String())
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} else {
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// Otherwise we redirect.
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http.Redirect(w, r, parsedURL.String(), http.StatusFound)
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}
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return
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}
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// When proxy disabled this endpoint should fail as we don't support redirecting to external images any longer (MM-54477).
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c.Err = model.NewAppError("getImage", "api.image.get.app_error", nil, "", http.StatusBadRequest)
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}
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