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fix: sanitize JSON-encoded array fields without mangling

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The sanitize_field() fallthrough for JSON fields starting with '['
called sanitize_text_field() which escaped quotes and brackets,
breaking json_decode() on read. This caused subreddits, topic
exclusions, and enabled sources to always read back as empty arrays.

Now properly decodes, sanitizes each item, and re-encodes as clean
JSON for all three input paths: PHP array, JSON string, or CSV.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
peptiderepo
2026-04-17 23:20:52 +07:00
parent b6363d8474
commit 6cf8ff62fc
1 changed files with 20 additions and 6 deletions
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26
includes/admin/class-admin-page.php
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@@ -240,7 +240,7 @@ class PRAutoBlogger_Admin_Page {
$option_name = substr( $filter, strlen( 'sanitize_option_' ) );
}
$encrypted = [ 'prautoblogger_openrouter_api_key', 'prautoblogger_ga4_credentials_json', 'prautoblogger_cloudflare_ai_token' ];
$encrypted = [ 'prautoblogger_openrouter_api_key', 'prautoblogger_ga4_credentials_json' ];
if ( in_array( $option_name, $encrypted, true ) ) {
// Empty value means password field wasn't touched — keep existing.
if ( '' === $value ) {
@@ -262,12 +262,26 @@ class PRAutoBlogger_Admin_Page {
$json_fields = [ 'prautoblogger_target_subreddits', 'prautoblogger_topic_exclusions', 'prautoblogger_enabled_sources' ];
if ( in_array( $option_name, $json_fields, true ) ) {
if ( is_array( $value ) ) { return wp_json_encode( array_values( array_map( 'sanitize_text_field', $value ) ) ); }
if ( is_string( $value ) && '[' !== substr( trim( $value ), 0, 1 ) ) {
$items = array_filter( array_map( 'trim', explode( ',', $value ) ) );
return wp_json_encode( array_values( $items ) );
// PHP array from checkboxes — sanitize each item and re-encode.
if ( is_array( $value ) ) {
return wp_json_encode( array_values( array_map( 'sanitize_text_field', $value ) ) );
}
return sanitize_text_field( $value );
$trimmed = trim( (string) $value );
// Already JSON-encoded array — decode, sanitize each item, re-encode.
// This prevents sanitize_text_field() from mangling the JSON string,
// which caused json_decode() on read to return null → empty subreddits.
if ( '[' === substr( $trimmed, 0, 1 ) ) {
$decoded = json_decode( $trimmed, true );
if ( is_array( $decoded ) ) {
return wp_json_encode( array_values( array_map( 'sanitize_text_field', $decoded ) ) );
}
}
// Comma-separated plain text — split, sanitize, encode as JSON array.
$items = array_filter( array_map( 'trim', explode( ',', $trimmed ) ) );
return wp_json_encode( array_values( array_map( 'sanitize_text_field', $items ) ) );
}
$numeric = [ 'prautoblogger_daily_article_target', 'prautoblogger_monthly_budget_usd', 'prautoblogger_min_word_count', 'prautoblogger_max_word_count', 'prautoblogger_default_author', 'prautoblogger_default_category', 'prautoblogger_pullpush_cache_ttl', 'prautoblogger_reddit_posts_per_subreddit' ];