Mercurial > gemma
view pkg/controllers/srimports.go @ 2624:9dbaf69c7a66
Improve geoserver config to better calculate bounding boxes
* Disable the use of estimated extents for the postgis storage
configuration for geoserver, which is set via the gemma middleware.
This way we are able to get better bounding boxes for many layers
where the postgis function `ST_EstimatedExtent()` would be far off.
author | Bernhard Reiter <bernhard@intevation.de> |
---|---|
date | Wed, 13 Mar 2019 16:18:39 +0100 |
parents | 4d6979dedb11 |
children | 5222bfe5b4af |
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// This is Free Software under GNU Affero General Public License v >= 3.0 // without warranty, see README.md and license for details. // // SPDX-License-Identifier: AGPL-3.0-or-later // License-Filename: LICENSES/AGPL-3.0.txt // // Copyright (C) 2018 by via donau // – Österreichische Wasserstraßen-Gesellschaft mbH // Software engineering by Intevation GmbH // // Author(s): // * Sascha L. Teichmann <sascha.teichmann@intevation.de> package controllers import ( "archive/zip" "database/sql" "encoding/hex" "fmt" "log" "net/http" "os" "path/filepath" "strconv" "sync" "time" "github.com/gorilla/mux" "gemma.intevation.de/gemma/pkg/auth" "gemma.intevation.de/gemma/pkg/common" "gemma.intevation.de/gemma/pkg/config" "gemma.intevation.de/gemma/pkg/imports" "gemma.intevation.de/gemma/pkg/misc" "gemma.intevation.de/gemma/pkg/models" ) const ( soundingResultName = "soundingresult" maxSoundingResultSize = 25 * 1024 * 1024 ) func fetchSoundingResult(req *http.Request) (string, error) { // Check first if we have a token. if token := req.FormValue("token"); token != "" { if _, err := hex.DecodeString(token); err != nil { return "", err } dir := config.TmpDir() if dir == "" { dir = os.TempDir() } // XXX: This should hopefully be race-free enough. now := time.Now().Format("2006-15-04-05") dst := filepath.Join(dir, soundingResultName+"-"+token+"-"+now) if err := misc.UnmakeTempFile(token, dst); err != nil { return "", err } return dst, nil } return misc.StoreUploadedFile( req, soundingResultName, "sr.zip", maxSoundingResultSize, ) } func fetchSoundingResultMetaOverrides(sr *imports.SoundingResult, req *http.Request) error { if v := req.FormValue("epsg"); v != "" { epsg, err := strconv.ParseUint(v, 10, 32) if err != nil { return err } srid := uint(epsg) sr.EPSG = &srid } if v := req.FormValue("date"); v != "" { date, err := time.Parse(common.DateFormat, v) if err != nil { return err } sr.Date = &models.Date{Time: date} } if v := req.FormValue("depth-reference"); v != "" { sr.DepthReference = &v } if v := req.FormValue("bottleneck"); v != "" { sr.Bottleneck = &v } return nil } func importSoundingResult(rw http.ResponseWriter, req *http.Request) { sr := new(imports.SoundingResult) if err := fetchSoundingResultMetaOverrides(sr, req); err != nil { log.Printf("error: %v\n", err) http.Error(rw, "error: "+err.Error(), http.StatusBadRequest) return } dir, err := fetchSoundingResult(req) if err != nil { log.Printf("error: %v\n", err) http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError) return } sr.Dir = dir serialized, err := common.ToJSONString(sr) if err != nil { log.Printf("error: %v\n", err) http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError) return } session, _ := auth.GetSession(req) sendEmail := req.FormValue("email") != "" jobID, err := imports.AddJob( imports.SRJobKind, time.Time{}, // due nil, // trys nil, // retry wait session.User, sendEmail, serialized) if err != nil { log.Printf("error: %v\n", err) http.Error(rw, "error: "+err.Error(), http.StatusInternalServerError) return } log.Printf("info: added import #%d to queue\n", jobID) result := struct { ID int64 `json:"id"` }{ ID: jobID, } SendJSON(rw, http.StatusCreated, &result) } func loadMeta(f *zip.File) (*models.SoundingResultMeta, error) { r, err := f.Open() if err != nil { return nil, err } defer r.Close() var m models.SoundingResultMeta return &m, m.Decode(r) } func uploadSoundingResult( _ interface{}, req *http.Request, conn *sql.Conn, ) (jr JSONResult, err error) { var dir string if dir, err = misc.StoreUploadedFile( req, soundingResultName, "sr.zip", maxSoundingResultSize, ); err != nil { return } srFile := filepath.Join(dir, "sr.zip") var zr *zip.ReadCloser if zr, err = zip.OpenReader(srFile); err != nil { return } var once sync.Once closeOnce := func() { zr.Close() } defer once.Do(closeOnce) var messages []string var result struct { Token string `json:"token,omitempty"` Meta interface{} `json:"meta,omitempty"` Messages []string `json:"messages,omitempty"` } find := func(ext string) *zip.File { return common.FindInZIP(zr, ext) } noXYZ := find(".xyz") == nil && find(".txt") == nil if noXYZ { messages = append(messages, "no .xyz or .txt file found.") } if mj := find("meta.json"); mj == nil { messages = append(messages, "no 'meta.json' file found.") } else { if meta, err := loadMeta(mj); err != nil { messages = append(messages, fmt.Sprintf("'meta.json' found but invalid: %v", err)) } else { errs := meta.Validate(req.Context(), conn) for _, err := range errs { messages = append(messages, fmt.Sprintf("invalid 'meta.json': %v", err)) } result.Meta = meta } } once.Do(closeOnce) code := http.StatusCreated // If there are no XYZ data we cant help the user anyway. if noXYZ { code = http.StatusBadRequest if err2 := os.RemoveAll(dir); err2 != nil { log.Printf("error: %v\n", err2) } } else if result.Token, err = misc.MakeTempFile(dir); err != nil { if err2 := os.RemoveAll(dir); err2 != nil { log.Printf("error: %v\n", err2) } return } result.Messages = messages jr = JSONResult{ Code: code, Result: &result, } return } func deleteSoundingUpload(rw http.ResponseWriter, req *http.Request) { token := mux.Vars(req)["token"] if _, err := hex.DecodeString(token); err != nil { http.Error(rw, "Invalid token", http.StatusBadRequest) return } if err := misc.DeleteTempFile(token); err != nil { http.Error(rw, fmt.Sprintf("error: %v", err), http.StatusInternalServerError) return } result := struct { Message string `json:"message"` }{ Message: fmt.Sprintf("Token %s deleted.", token), } SendJSON(rw, http.StatusOK, &result) }