Ajouter content2url.sh

content2url.sh

@@ -0,0 +1,152 @@
+#!/bin/bash
+
+# Usage: ./md2data_safe.sh FILE [--css CSS_FILE] [--size LIMIT]
+# Converts HTML or Markdown to Base64 Data URL
+# Default size limit is 30000 characters
+
+# ----------------- Functions -----------------
+
+show_help() {
+    echo "Usage: $0 FILE [--css CSS_FILE] [--size LIMIT]"
+    echo
+    echo "Parameters:"
+    echo "  FILE         HTML or Markdown file to convert"
+    echo "  --css FILE   Optional single CSS file to inject"
+    echo "  --size LIMIT Optional maximum size for Data URL (default: 30000)"
+    exit 0
+}
+
+check_file_exists() {
+    local file="$1"
+    if [ ! -f "$file" ]; then
+        echo "Error: file '$file' not found." >&2
+        exit 1
+    fi
+}
+
+convert_md_to_html() {
+    local file="$1"
+    if ! command -v pandoc >/dev/null 2>&1; then
+        echo "Error: pandoc is not installed." >&2
+        exit 1
+    fi
+    pandoc "$file" -f markdown -t html -s
+}
+
+minify_css() {
+    local css_file="$1"
+    tr -d '\n' < "$css_file" | sed -E 's/[[:space:]]+/ /g;s/ *{ */{/g;s/ *} */}/g;s/ *; */;/g'
+}
+
+escape_css_for_sed() {
+    local css="$1"
+    css=${css//\\/\\\\}  # Escape backslash
+    css=${css//\//\\/}   # Escape slashes
+    css=${css//&/\\&}    # Escape &
+    echo "$css"
+}
+
+inject_css() {
+    local html_file="$1"
+    local css="$2"
+    local escaped_css
+    escaped_css=$(escape_css_for_sed "$css")
+
+    if grep -q "</head>" "$html_file"; then
+        sed "/<\/head>/i <style>$escaped_css</style>" "$html_file"
+    else
+        echo "<style>$escaped_css</style>"
+        cat "$html_file"
+    fi
+}
+
+generate_data_url() {
+    if base64 --help 2>&1 | grep -q -- '-w'; then
+        base64 -w 0
+    else
+        base64
+    fi
+}
+
+check_size() {
+    local size="$1"
+    local limit="$2"
+    echo "Data URL size: $size characters"
+    if [ "$size" -gt "$limit" ]; then
+        echo "WARNING: Data URL exceeds recommended limit of $limit characters."
+    else
+        echo "Data URL is within a safe size for most browsers."
+    fi
+}
+
+# ----------------- Argument Parsing -----------------
+
+CSS_FILE=""
+LIMIT=30000
+FILE=""
+
+while [[ $# -gt 0 ]]; do
+    case "$1" in
+        --help|-h)
+            show_help
+            ;;
+        --css)
+            CSS_FILE="$2"
+            shift 2
+            ;;
+        --size)
+            LIMIT="$2"
+            shift 2
+            ;;
+        -*)
+            echo "Unknown option: $1" >&2
+            exit 1
+            ;;
+        *)
+            FILE="$1"
+            shift
+            ;;
+    esac
+done
+
+if [[ -z "$FILE" ]]; then
+    show_help
+fi
+
+check_file_exists "$FILE"
+EXT="${FILE##*.}"
+
+# ----------------- Main Processing -----------------
+
+# Temporary HTML file for streaming
+TMP_HTML=$(mktemp)
+trap 'rm -f "$TMP_HTML"' EXIT
+
+# Convert Markdown or copy HTML
+if [[ "$EXT" == "md" ]]; then
+    convert_md_to_html "$FILE" > "$TMP_HTML"
+else
+    cp "$FILE" "$TMP_HTML"
+fi
+
+# Minify and inject CSS if provided
+if [[ -n "$CSS_FILE" ]]; then
+    check_file_exists "$CSS_FILE"
+    MIN_CSS=$(minify_css "$CSS_FILE")
+    TMP_HTML_INJECTED=$(mktemp)
+    inject_css "$TMP_HTML" "$MIN_CSS" > "$TMP_HTML_INJECTED"
+    mv "$TMP_HTML_INJECTED" "$TMP_HTML"
+    echo "Injected CSS size: ${#MIN_CSS} characters"
+fi
+
+# Generate Base64 Data URL
+DATA_URL="data:text/html;charset=utf-8;base64,$(generate_data_url < "$TMP_HTML")"
+
+# Check size
+SIZE=${#DATA_URL}
+check_size "$SIZE" "$LIMIT"
+
+# Display clickable HTML link
+echo
+echo "Clickable HTML link:"
+echo "<a href=\"$DATA_URL\" target=\"_blank\">Open $FILE</a>"