122 lines
3.3 KiB
Go
122 lines
3.3 KiB
Go
package main
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import (
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"encoding/json"
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"errors"
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"fmt"
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"github.com/go-chi/chi/v5"
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"io"
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"net/http"
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"os"
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"path"
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"path/filepath"
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"strings"
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"time"
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)
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// GetFile returns raw contents of a txt file in data directory
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func GetFile(filename string, w http.ResponseWriter) {
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filename = "data/" + path.Clean(filename) + ".txt" // Does this sanitize the path?
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if _, err := os.Stat(filename); errors.Is(err, os.ErrNotExist) {
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http.Error(w, "file not found", http.StatusNotFound)
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return
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}
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fileContents, err := os.ReadFile(filename)
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if err != nil {
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http.Error(w, "error reading file", http.StatusInternalServerError)
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return
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}
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_, err = w.Write(fileContents)
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if err != nil {
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http.Error(w, "error sending file", http.StatusInternalServerError)
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}
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}
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// PostFile Writes request's contents to a txt file in data directory
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// TODO: Save to trash to prevent malicious/accidental overrides?
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func PostFile(filename string, w http.ResponseWriter, r *http.Request) {
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body, err := io.ReadAll(r.Body)
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if err != nil {
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w.WriteHeader(http.StatusInternalServerError)
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w.Write([]byte("error reading body"))
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return
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}
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f, err := os.OpenFile("data/"+filename+".txt", os.O_CREATE|os.O_WRONLY, 0644)
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if err != nil {
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fmt.Println("error opening/making file")
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w.Write([]byte("error opening or creating file"))
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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if _, err := f.Write(body); err != nil {
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fmt.Println("error writing to the file")
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w.Write([]byte("error writing to file"))
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w.WriteHeader(http.StatusInternalServerError)
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return
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}
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w.Write([]byte("wrote to file"))
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w.WriteHeader(http.StatusOK)
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}
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// ListFiles returns JSON list of filenames in a directory without extensions or path
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func ListFiles(directory string, w http.ResponseWriter) {
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filenames, err := filepath.Glob("data/" + directory + "/*.txt")
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if err != nil {
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http.Error(w, "error searching for files", http.StatusInternalServerError)
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return
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}
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for i, file := range filenames {
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file, _ := strings.CutSuffix(filepath.Base(file), filepath.Ext(file))
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filenames[i] = file
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}
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filenamesJson, err := json.Marshal(filenames)
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w.Write(filenamesJson)
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}
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// GetDay returns a day specified in URL
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func GetDay(w http.ResponseWriter, r *http.Request) {
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dayString := chi.URLParam(r, "day")
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if dayString == "" {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("day not specified"))
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return
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}
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GetFile("day/"+dayString, w)
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}
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// GetToday runs GetFile with today's daily txt
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func GetToday(w http.ResponseWriter) {
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GetFile("day/"+time.Now().Format("2006-01-02"), w)
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}
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// PostToday runs PostFile with today's daily txt
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func PostToday(w http.ResponseWriter, r *http.Request) {
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PostFile("day/"+time.Now().Format("2006-01-02"), w, r)
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}
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// GetNote returns a note specified in URL
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func GetNote(w http.ResponseWriter, r *http.Request) {
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noteString := chi.URLParam(r, "note")
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if noteString == "" {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("note not specified"))
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return
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}
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GetFile("notes/"+noteString, w)
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}
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// PostNote writes request's contents to a note specified in URL
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func PostNote(w http.ResponseWriter, r *http.Request) {
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noteString := chi.URLParam(r, "note")
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if noteString == "" {
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w.WriteHeader(http.StatusBadRequest)
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w.Write([]byte("note not specified"))
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return
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}
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PostFile("notes/"+noteString, w, r)
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}
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