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// SPDX-FileCopyrightText: Copyright The Miniflux Authors. All rights reserved.
// SPDX-License-Identifier: Apache-2.0
package processor // import "miniflux.app/v2/internal/reader/processor"
import (
"log/slog"
"regexp"
"slices"
"strings"
"time"
"miniflux.app/v2/internal/model"
)
func isBlockedEntry(feed *model.Feed, entry *model.Entry, user *model.User) bool {
if user.BlockFilterEntryRules != "" {
rules := strings.Split(user.BlockFilterEntryRules, "\n")
for _, rule := range rules {
parts := strings.SplitN(rule, "=", 2)
var match bool
switch parts[0] {
case "EntryDate":
datePattern := parts[1]
match = isDateMatchingPattern(entry.Date, datePattern)
case "EntryTitle":
match, _ = regexp.MatchString(parts[1], entry.Title)
case "EntryURL":
match, _ = regexp.MatchString(parts[1], entry.URL)
case "EntryCommentsURL":
match, _ = regexp.MatchString(parts[1], entry.CommentsURL)
case "EntryContent":
match, _ = regexp.MatchString(parts[1], entry.Content)
case "EntryAuthor":
match, _ = regexp.MatchString(parts[1], entry.Author)
case "EntryTag":
containsTag := slices.ContainsFunc(entry.Tags, func(tag string) bool {
match, _ = regexp.MatchString(parts[1], tag)
return match
})
if containsTag {
match = true
}
}
if match {
slog.Debug("Blocking entry based on rule",
slog.String("entry_url", entry.URL),
slog.Int64("feed_id", feed.ID),
slog.String("feed_url", feed.FeedURL),
slog.String("rule", rule),
)
return true
}
}
}
if feed.BlocklistRules == "" {
return false
}
compiledBlocklist, err := regexp.Compile(feed.BlocklistRules)
if err != nil {
slog.Debug("Failed on regexp compilation",
slog.String("pattern", feed.BlocklistRules),
slog.Any("error", err),
)
return false
}
containsBlockedTag := slices.ContainsFunc(entry.Tags, func(tag string) bool {
return compiledBlocklist.MatchString(tag)
})
if compiledBlocklist.MatchString(entry.URL) || compiledBlocklist.MatchString(entry.Title) || compiledBlocklist.MatchString(entry.Author) || containsBlockedTag {
slog.Debug("Blocking entry based on rule",
slog.String("entry_url", entry.URL),
slog.Int64("feed_id", feed.ID),
slog.String("feed_url", feed.FeedURL),
slog.String("rule", feed.BlocklistRules),
)
return true
}
return false
}
func isAllowedEntry(feed *model.Feed, entry *model.Entry, user *model.User) bool {
if user.KeepFilterEntryRules != "" {
rules := strings.Split(user.KeepFilterEntryRules, "\n")
for _, rule := range rules {
parts := strings.SplitN(rule, "=", 2)
var match bool
switch parts[0] {
case "EntryDate":
datePattern := parts[1]
match = isDateMatchingPattern(entry.Date, datePattern)
case "EntryTitle":
match, _ = regexp.MatchString(parts[1], entry.Title)
case "EntryURL":
match, _ = regexp.MatchString(parts[1], entry.URL)
case "EntryCommentsURL":
match, _ = regexp.MatchString(parts[1], entry.CommentsURL)
case "EntryContent":
match, _ = regexp.MatchString(parts[1], entry.Content)
case "EntryAuthor":
match, _ = regexp.MatchString(parts[1], entry.Author)
case "EntryTag":
containsTag := slices.ContainsFunc(entry.Tags, func(tag string) bool {
match, _ = regexp.MatchString(parts[1], tag)
return match
})
if containsTag {
match = true
}
}
if match {
slog.Debug("Allowing entry based on rule",
slog.String("entry_url", entry.URL),
slog.Int64("feed_id", feed.ID),
slog.String("feed_url", feed.FeedURL),
slog.String("rule", rule),
)
return true
}
}
return false
}
if feed.KeeplistRules == "" {
return true
}
compiledKeeplist, err := regexp.Compile(feed.KeeplistRules)
if err != nil {
slog.Debug("Failed on regexp compilation",
slog.String("pattern", feed.KeeplistRules),
slog.Any("error", err),
)
return false
}
containsAllowedTag := slices.ContainsFunc(entry.Tags, func(tag string) bool {
return compiledKeeplist.MatchString(tag)
})
if compiledKeeplist.MatchString(entry.URL) || compiledKeeplist.MatchString(entry.Title) || compiledKeeplist.MatchString(entry.Author) || containsAllowedTag {
slog.Debug("Allow entry based on rule",
slog.String("entry_url", entry.URL),
slog.Int64("feed_id", feed.ID),
slog.String("feed_url", feed.FeedURL),
slog.String("rule", feed.KeeplistRules),
)
return true
}
return false
}
func isDateMatchingPattern(entryDate time.Time, pattern string) bool {
if pattern == "future" {
return entryDate.After(time.Now())
}
parts := strings.SplitN(pattern, ":", 2)
if len(parts) != 2 {
return false
}
operator := parts[0]
dateStr := parts[1]
switch operator {
case "before":
targetDate, err := time.Parse("2006-01-02", dateStr)
if err != nil {
return false
}
return entryDate.Before(targetDate)
case "after":
targetDate, err := time.Parse("2006-01-02", dateStr)
if err != nil {
return false
}
return entryDate.After(targetDate)
case "between":
dates := strings.Split(dateStr, ",")
if len(dates) != 2 {
return false
}
startDate, err1 := time.Parse("2006-01-02", dates[0])
endDate, err2 := time.Parse("2006-01-02", dates[1])
if err1 != nil || err2 != nil {
return false
}
return entryDate.After(startDate) && entryDate.Before(endDate)
}
return false
}
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