125 lines
4 KiB
Go
125 lines
4 KiB
Go
// Copyright 2017 Frédéric Guillot. All rights reserved.
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// Use of this source code is governed by the Apache 2.0
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// license that can be found in the LICENSE file.
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package model // import "miniflux.app/model"
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import (
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"fmt"
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"math"
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"time"
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"miniflux.app/config"
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"miniflux.app/http/client"
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)
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// Feed represents a feed in the application.
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type Feed struct {
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ID int64 `json:"id"`
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UserID int64 `json:"user_id"`
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FeedURL string `json:"feed_url"`
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SiteURL string `json:"site_url"`
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Title string `json:"title"`
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CheckedAt time.Time `json:"checked_at"`
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NextCheckAt time.Time `json:"next_check_at"`
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EtagHeader string `json:"etag_header"`
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LastModifiedHeader string `json:"last_modified_header"`
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ParsingErrorMsg string `json:"parsing_error_message"`
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ParsingErrorCount int `json:"parsing_error_count"`
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ScraperRules string `json:"scraper_rules"`
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RewriteRules string `json:"rewrite_rules"`
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Crawler bool `json:"crawler"`
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UserAgent string `json:"user_agent"`
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Username string `json:"username"`
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Password string `json:"password"`
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Disabled bool `json:"disabled"`
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IgnoreHTTPCache bool `json:"ignore_http_cache"`
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FetchViaProxy bool `json:"fetch_via_proxy"`
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Category *Category `json:"category,omitempty"`
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Entries Entries `json:"entries,omitempty"`
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Icon *FeedIcon `json:"icon"`
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UnreadCount int `json:"-"`
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ReadCount int `json:"-"`
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}
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// List of supported schedulers.
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const (
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SchedulerRoundRobin = "round_robin"
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SchedulerEntryFrequency = "entry_frequency"
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)
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func (f *Feed) String() string {
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return fmt.Sprintf("ID=%d, UserID=%d, FeedURL=%s, SiteURL=%s, Title=%s, Category={%s}",
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f.ID,
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f.UserID,
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f.FeedURL,
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f.SiteURL,
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f.Title,
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f.Category,
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)
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}
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// WithClientResponse updates feed attributes from an HTTP request.
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func (f *Feed) WithClientResponse(response *client.Response) {
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f.EtagHeader = response.ETag
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f.LastModifiedHeader = response.LastModified
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f.FeedURL = response.EffectiveURL
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}
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// WithCategoryID initializes the category attribute of the feed.
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func (f *Feed) WithCategoryID(categoryID int64) {
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f.Category = &Category{ID: categoryID}
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}
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// WithBrowsingParameters defines browsing parameters.
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func (f *Feed) WithBrowsingParameters(crawler bool, userAgent, username, password, scraperRules, rewriteRules string, fetchViaProxy bool) {
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f.Crawler = crawler
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f.UserAgent = userAgent
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f.Username = username
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f.Password = password
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f.ScraperRules = scraperRules
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f.RewriteRules = rewriteRules
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f.FetchViaProxy = fetchViaProxy
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}
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// WithError adds a new error message and increment the error counter.
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func (f *Feed) WithError(message string) {
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f.ParsingErrorCount++
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f.ParsingErrorMsg = message
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}
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// ResetErrorCounter removes all previous errors.
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func (f *Feed) ResetErrorCounter() {
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f.ParsingErrorCount = 0
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f.ParsingErrorMsg = ""
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}
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// CheckedNow set attribute values when the feed is refreshed.
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func (f *Feed) CheckedNow() {
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f.CheckedAt = time.Now()
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if f.SiteURL == "" {
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f.SiteURL = f.FeedURL
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}
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}
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// ScheduleNextCheck set "next_check_at" of a feed based on the scheduler selected from the configuration.
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func (f *Feed) ScheduleNextCheck(weeklyCount int) {
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switch config.Opts.PollingScheduler() {
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case SchedulerEntryFrequency:
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var intervalMinutes int
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if weeklyCount == 0 {
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intervalMinutes = config.Opts.SchedulerEntryFrequencyMaxInterval()
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} else {
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intervalMinutes = int(math.Round(float64(7*24*60) / float64(weeklyCount)))
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}
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intervalMinutes = int(math.Min(float64(intervalMinutes), float64(config.Opts.SchedulerEntryFrequencyMaxInterval())))
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intervalMinutes = int(math.Max(float64(intervalMinutes), float64(config.Opts.SchedulerEntryFrequencyMinInterval())))
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f.NextCheckAt = time.Now().Add(time.Minute * time.Duration(intervalMinutes))
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default:
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f.NextCheckAt = time.Now()
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}
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}
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// Feeds is a list of feed
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type Feeds []*Feed
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