diff options
Diffstat (limited to 'internal/unsorted/http_server.go')
| -rw-r--r-- | internal/unsorted/http_server.go | 276 |
1 files changed, 276 insertions, 0 deletions
diff --git a/internal/unsorted/http_server.go b/internal/unsorted/http_server.go new file mode 100644 index 0000000..6710df3 --- /dev/null +++ b/internal/unsorted/http_server.go @@ -0,0 +1,276 @@ +// SPDX-License-Identifier: AGPL-3.0-only +// SPDX-FileCopyrightText: Copyright (c) 2025 Runxi Yu <https://runxiyu.org> + +package unsorted + +import ( + "errors" + "log/slog" + "net/http" + "net/url" + "strconv" + "strings" + + "github.com/jackc/pgx/v5" + "go.lindenii.runxiyu.org/forge/internal/misc" + "go.lindenii.runxiyu.org/forge/internal/web" +) + +// ServeHTTP handles all incoming HTTP requests and routes them to the correct +// location. +// +// TODO: This function is way too large. +func (s *Server) ServeHTTP(writer http.ResponseWriter, request *http.Request) { + var remoteAddr string + if s.config.HTTP.ReverseProxy { + remoteAddrs, ok := request.Header["X-Forwarded-For"] + if ok && len(remoteAddrs) == 1 { + remoteAddr = remoteAddrs[0] + } else { + remoteAddr = request.RemoteAddr + } + } else { + remoteAddr = request.RemoteAddr + } + slog.Info("incoming http", "addr", remoteAddr, "method", request.Method, "uri", request.RequestURI) + + var segments []string + var err error + var sepIndex int + params := make(map[string]any) + + if segments, _, err = misc.ParseReqURI(request.RequestURI); err != nil { + web.ErrorPage400(s.templates, writer, params, "Error parsing request URI: "+err.Error()) + return + } + dirMode := false + if segments[len(segments)-1] == "" { + dirMode = true + segments = segments[:len(segments)-1] + } + + params["url_segments"] = segments + params["dir_mode"] = dirMode + params["global"] = s.globalData + var userID int // 0 for none + userID, params["username"], err = s.getUserFromRequest(request) + params["user_id"] = userID + if err != nil && !errors.Is(err, http.ErrNoCookie) && !errors.Is(err, pgx.ErrNoRows) { + web.ErrorPage500(s.templates, writer, params, "Error getting user info from request: "+err.Error()) + return + } + + if userID == 0 { + params["user_id_string"] = "" + } else { + params["user_id_string"] = strconv.Itoa(userID) + } + + for _, v := range segments { + if strings.Contains(v, ":") { + web.ErrorPage400Colon(s.templates, writer, params) + return + } + } + + if len(segments) == 0 { + s.httpHandleIndex(writer, request, params) + return + } + + if segments[0] == "-" { + if len(segments) < 2 { + web.ErrorPage404(s.templates, writer, params) + return + } else if len(segments) == 2 && misc.RedirectDir(writer, request) { + return + } + + switch segments[1] { + case "static": + s.staticHandler.ServeHTTP(writer, request) + return + case "source": + s.sourceHandler.ServeHTTP(writer, request) + return + } + } + + if segments[0] == "-" { + switch segments[1] { + case "login": + s.httpHandleLogin(writer, request, params) + return + case "users": + s.httpHandleUsers(writer, request, params) + return + default: + web.ErrorPage404(s.templates, writer, params) + return + } + } + + sepIndex = -1 + for i, part := range segments { + if part == "-" { + sepIndex = i + break + } + } + + params["separator_index"] = sepIndex + + var groupPath []string + var moduleType string + var moduleName string + + if sepIndex > 0 { + groupPath = segments[:sepIndex] + } else { + groupPath = segments + } + params["group_path"] = groupPath + + switch { + case sepIndex == -1: + if misc.RedirectDir(writer, request) { + return + } + s.httpHandleGroupIndex(writer, request, params) + case len(segments) == sepIndex+1: + web.ErrorPage404(s.templates, writer, params) + return + case len(segments) == sepIndex+2: + web.ErrorPage404(s.templates, writer, params) + return + default: + moduleType = segments[sepIndex+1] + moduleName = segments[sepIndex+2] + switch moduleType { + case "repos": + params["repo_name"] = moduleName + + if len(segments) > sepIndex+3 { + switch segments[sepIndex+3] { + case "info": + if err = s.httpHandleRepoInfo(writer, request, params); err != nil { + web.ErrorPage500(s.templates, writer, params, err.Error()) + } + return + case "git-upload-pack": + if err = s.httpHandleUploadPack(writer, request, params); err != nil { + web.ErrorPage500(s.templates, writer, params, err.Error()) + } + return + } + } + + if params["ref_type"], params["ref_name"], err = misc.GetParamRefTypeName(request); err != nil { + if errors.Is(err, misc.ErrNoRefSpec) { + params["ref_type"] = "" + } else { + web.ErrorPage400(s.templates, writer, params, "Error querying ref type: "+err.Error()) + return + } + } + + if params["repo"], params["repo_description"], params["repo_id"], _, err = s.openRepo(request.Context(), groupPath, moduleName); err != nil { + web.ErrorPage500(s.templates, writer, params, "Error opening repo: "+err.Error()) + return + } + + repoURLRoot := "/" + for _, part := range segments[:sepIndex+3] { + repoURLRoot = repoURLRoot + url.PathEscape(part) + "/" + } + params["repo_url_root"] = repoURLRoot + params["repo_patch_mailing_list"] = repoURLRoot[1:len(repoURLRoot)-1] + "@" + s.config.LMTP.Domain + params["http_clone_url"] = s.genHTTPRemoteURL(groupPath, moduleName) + params["ssh_clone_url"] = s.genSSHRemoteURL(groupPath, moduleName) + + if len(segments) == sepIndex+3 { + if misc.RedirectDir(writer, request) { + return + } + s.httpHandleRepoIndex(writer, request, params) + return + } + + repoFeature := segments[sepIndex+3] + switch repoFeature { + case "tree": + if misc.AnyContain(segments[sepIndex+4:], "/") { + web.ErrorPage400(s.templates, writer, params, "Repo tree paths may not contain slashes in any segments") + return + } + if dirMode { + params["rest"] = strings.Join(segments[sepIndex+4:], "/") + "/" + } else { + params["rest"] = strings.Join(segments[sepIndex+4:], "/") + } + if len(segments) < sepIndex+5 && misc.RedirectDir(writer, request) { + return + } + s.httpHandleRepoTree(writer, request, params) + case "branches": + if misc.RedirectDir(writer, request) { + return + } + s.httpHandleRepoBranches(writer, request, params) + return + case "raw": + if misc.AnyContain(segments[sepIndex+4:], "/") { + web.ErrorPage400(s.templates, writer, params, "Repo tree paths may not contain slashes in any segments") + return + } + if dirMode { + params["rest"] = strings.Join(segments[sepIndex+4:], "/") + "/" + } else { + params["rest"] = strings.Join(segments[sepIndex+4:], "/") + } + if len(segments) < sepIndex+5 && misc.RedirectDir(writer, request) { + return + } + s.httpHandleRepoRaw(writer, request, params) + case "log": + if len(segments) > sepIndex+4 { + web.ErrorPage400(s.templates, writer, params, "Too many parameters") + return + } + if misc.RedirectDir(writer, request) { + return + } + s.httpHandleRepoLog(writer, request, params) + case "commit": + if len(segments) != sepIndex+5 { + web.ErrorPage400(s.templates, writer, params, "Incorrect number of parameters") + return + } + if misc.RedirectNoDir(writer, request) { + return + } + params["commit_id"] = segments[sepIndex+4] + s.httpHandleRepoCommit(writer, request, params) + case "contrib": + if misc.RedirectDir(writer, request) { + return + } + switch len(segments) { + case sepIndex + 4: + s.httpHandleRepoContribIndex(writer, request, params) + case sepIndex + 5: + params["mr_id"] = segments[sepIndex+4] + s.httpHandleRepoContribOne(writer, request, params) + default: + web.ErrorPage400(s.templates, writer, params, "Too many parameters") + } + default: + web.ErrorPage404(s.templates, writer, params) + return + } + default: + web.ErrorPage404(s.templates, writer, params) + return + } + } +} |