sync: import files in markdown, relative to theme/exercice dir

admin/sync/exercice_hints.go

@@ -12,7 +12,6 @@ import (
 
 	"srs.epita.fr/fic-server/libfic"
 
-	"gopkg.in/russross/blackfriday.v2"
 	_ "golang.org/x/crypto/blake2b"
 )
 
@@ -74,7 +73,7 @@ func SyncExerciceHints(i Importer, exercice fic.Exercice) (errs []string) {
 				errs = append(errs, fmt.Sprintf("%q: challenge.txt: hint %s (%d): content and filename can't be empty at the same time", path.Base(exercice.Path), hint.Title, n+1))
 				continue
 			} else {
-				hint.Content = string(blackfriday.Run([]byte(hint.Content)))
+				hint.Content = ProcessMarkdown(i, hint.Content, exercice.Path)
 			}
 
 			// Import hint

admin/sync/exercices.go

@@ -114,8 +114,8 @@ func SyncExercices(i Importer, theme fic.Theme) []string {
 			}
 
 			// Markdown pre-formating
-			statement = string(blackfriday.Run([]byte(statement)))
-			overview = string(blackfriday.Run([]byte(overview)))
+			statement = ProcessMarkdown(i, statement, edir)
+			overview = ProcessMarkdown(i, overview, edir)
 			headline = string(blackfriday.Run([]byte(headline)))
 
 			e, err := theme.GetExerciceByTitle(ename)

admin/sync/markdown.go

@@ -0,0 +1,66 @@
+package sync
+
+import (
+	"bufio"
+	"encoding/base32"
+	"log"
+	"os"
+	"path"
+	"regexp"
+	"strings"
+
+	"srs.epita.fr/fic-server/libfic"
+
+	"golang.org/x/crypto/blake2b"
+	"gopkg.in/russross/blackfriday.v2"
+)
+
+func ProcessMarkdown(i Importer, input string, rootDir string) (output string) {
+	// Define the path where save linked files
+	hash := blake2b.Sum512([]byte(rootDir))
+	absPath := "$FILES$/" + strings.ToLower(base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(hash[:]))
+
+	// Process md
+	output = string(blackfriday.Run(
+		[]byte(input),
+		blackfriday.WithRenderer(blackfriday.NewHTMLRenderer(
+			blackfriday.HTMLRendererParameters{
+				AbsolutePrefix: absPath,
+				Flags: blackfriday.CommonHTMLFlags,
+			},
+		)),
+	))
+
+	// Import files
+	re, err := regexp.Compile(strings.Replace(absPath, "$", "\\$", -1) + "/[^\"]+")
+	if err != nil {
+		log.Println("Unable to compile regexp:", err)
+		return
+	}
+	files := re.FindAllString(output, -1)
+
+	for _, filePath := range files {
+		iPath := strings.TrimPrefix(filePath, absPath)
+		dPath := path.Join(fic.FilesDir, strings.ToLower(base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(hash[:])), iPath)
+
+		if err := os.MkdirAll(path.Dir(dPath), 0755); err != nil {
+			log.Println("Unable to make directories:", err)
+			return
+		}
+
+		if fdto, err := os.Create(dPath); err != nil {
+			log.Println("Unable to create destination file:", err)
+			return
+		} else {
+			defer fdto.Close()
+			writer := bufio.NewWriter(fdto)
+			if err := getFile(i, rootDir + iPath, writer); err != nil {
+				os.Remove(dPath)
+				log.Println("Unable to create destination file:", err)
+				return
+			}
+		}
+	}
+
+	return
+}

admin/sync/themes.go

@@ -99,7 +99,7 @@ func SyncThemes(i Importer) []string {
 			authors_str := strings.Join(authors, ", ")
 
 			// Format overview (markdown)
-			intro = string(blackfriday.Run([]byte(intro)))
+			intro = ProcessMarkdown(i, intro, tdir)
 			headline = string(blackfriday.Run([]byte(headline)))
 
 			if i.exists(path.Join(tdir, "heading.jpg")) {

libfic/team_my.go

@@ -6,6 +6,7 @@ import (
 	"log"
 	"time"
 	"path"
+	"strings"
 )
 
 type myTeamFile struct {
@@ -96,7 +97,7 @@ func MyJSONTeam(t *Team, started bool) (interface{}, error) {
 					exercice.ThemeId = tid
 				}
 
-				exercice.Statement = e.Statement
+				exercice.Statement = strings.Replace(e.Statement, "$FILES$", FilesDir, -1)
 
 				if len(e.Issue) > 0 {
 					exercice.Issue = e.Issue
@@ -104,7 +105,7 @@ func MyJSONTeam(t *Team, started bool) (interface{}, error) {
 				}
 
 				if t == nil {
-					exercice.Overview = e.Overview
+					exercice.Overview = strings.Replace(e.Overview, "$FILES$", FilesDir, -1)
 					exercice.VideoURI = e.VideoURI
 					exercice.Tries = e.TriedCount()
 					exercice.Gain = int(float64(e.Gain) * e.Coefficient)

libfic/theme_export.go

@@ -3,6 +3,7 @@ package fic
 import (
 	"fmt"
 	"path"
+	"strings"
 )
 
 // exportedExercice is a structure representing a challenge, as exposed to players.
@@ -63,7 +64,7 @@ func ExportThemes() (interface{}, error) {
 					theme.URLId,
 					theme.Authors,
 					theme.Headline,
-					theme.Intro,
+					strings.Replace(theme.Intro, "$FILES$", FilesDir, -1),
 					imgpath,
 					exos,
 				}