87 lines
2.5 KiB
Go
87 lines
2.5 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package validator
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import (
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"fmt"
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"strings"
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"go.probo.inc/probo/pkg/prosemirror"
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)
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// ProseMirrorDocumentContent requires non-empty string values to be valid
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// ProseMirror/Tiptap JSON with root type "doc". Empty and whitespace-only
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// strings are allowed.
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func ProseMirrorDocumentContent() ValidatorFunc {
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return func(value any) *ValidationError {
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actualValue, isNil := dereferenceValue(value)
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if isNil {
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return nil
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}
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s, ok := actualValue.(string)
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if !ok {
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return newValidationError(ErrorCodeInvalidFormat, "value must be a string")
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}
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if strings.TrimSpace(s) == "" {
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return nil
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}
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if err := prosemirror.ValidateDocumentContentJSON(s); err != nil {
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return newValidationError(ErrorCodeInvalidFormat, err.Error())
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}
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return nil
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}
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}
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// ProseMirrorDocumentMaxTextLength validates that the total text content
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// within a ProseMirror/Tiptap JSON document does not exceed maxLength bytes.
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// Only user-visible text is counted; structural markup is excluded.
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// Nil, empty, and whitespace-only values pass. Invalid JSON is skipped
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// (let ProseMirrorDocumentContent handle format errors).
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func ProseMirrorDocumentMaxTextLength(maxLength int) ValidatorFunc {
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return func(value any) *ValidationError {
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actualValue, isNil := dereferenceValue(value)
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if isNil {
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return nil
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}
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s, ok := actualValue.(string)
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if !ok {
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return newValidationError(ErrorCodeInvalidFormat, "value must be a string")
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}
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if strings.TrimSpace(s) == "" {
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return nil
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}
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n, err := prosemirror.Parse(s)
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if err != nil {
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return nil
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}
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if n.TextLength() > maxLength {
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return newValidationError(
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ErrorCodeTooLong,
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fmt.Sprintf("text content must be at most %d characters", maxLength),
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)
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}
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return nil
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}
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}
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