parse out titles and urls from heading tags
This commit is contained in:
parent
684ee15a95
commit
d165de5d86
65
feed/feed.go
65
feed/feed.go
@ -5,10 +5,12 @@ import (
|
||||
"fmt"
|
||||
"io"
|
||||
"net/http"
|
||||
"path"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"golang.org/x/net/html"
|
||||
"golang.org/x/net/html/atom"
|
||||
)
|
||||
|
||||
const feedfmtopen = `<?xml version="1.0" encoding="utf-8"?>
|
||||
@ -135,6 +137,43 @@ func getAllElements(doc *html.Node, tag string) ([]*html.Node, error) {
|
||||
return elements, nil
|
||||
}
|
||||
|
||||
func getTitleAndUrl(article *html.Node) (string, string, error) {
|
||||
var title string
|
||||
var url string
|
||||
var header *html.Node
|
||||
h1, _ := getHtmlElement(article, "h1")
|
||||
h2, _ := getHtmlElement(article, "h2")
|
||||
h3, _ := getHtmlElement(article, "h3")
|
||||
if h1 != nil {
|
||||
header = h1
|
||||
} else if h2 != nil {
|
||||
header = h2
|
||||
} else if h3 != nil {
|
||||
header = h3
|
||||
}
|
||||
if header == nil {
|
||||
return "", "", nil
|
||||
}
|
||||
if header.FirstChild.Type != html.ElementNode {
|
||||
title = header.FirstChild.Data
|
||||
} else if header.FirstChild.DataAtom == atom.A {
|
||||
title = header.FirstChild.FirstChild.Data
|
||||
for _, d := range header.FirstChild.Attr {
|
||||
if d.Key == "href" {
|
||||
url = d.Val
|
||||
}
|
||||
}
|
||||
}
|
||||
if url == "" && header.Parent.DataAtom == atom.A {
|
||||
for _, d := range header.FirstChild.Attr {
|
||||
if d.Key == "href" {
|
||||
url = d.Val
|
||||
}
|
||||
}
|
||||
}
|
||||
return title, url, nil
|
||||
}
|
||||
|
||||
func NewFeedItem(url string, article *html.Node) (*FeedItem, error) {
|
||||
var articleBuilder strings.Builder
|
||||
html.Render(&articleBuilder, article)
|
||||
@ -142,7 +181,6 @@ func NewFeedItem(url string, article *html.Node) (*FeedItem, error) {
|
||||
Url: url,
|
||||
RawText: articleBuilder.String(),
|
||||
}
|
||||
|
||||
etime, err := getHtmlElement(article, "time")
|
||||
if err != nil {
|
||||
return nil, err
|
||||
@ -157,21 +195,18 @@ func NewFeedItem(url string, article *html.Node) (*FeedItem, error) {
|
||||
}
|
||||
item.PubTime = pubTime
|
||||
}
|
||||
|
||||
eh1, _ := getHtmlElement(article, "h1")
|
||||
eh2, _ := getHtmlElement(article, "h2")
|
||||
eh3, _ := getHtmlElement(article, "h3")
|
||||
if eh1 != nil {
|
||||
item.Title = eh1.FirstChild.Data
|
||||
// TODO: handle <a>
|
||||
} else if eh2 != nil {
|
||||
item.Title = eh2.FirstChild.Data
|
||||
} else if eh3 != nil {
|
||||
item.Title = eh3.FirstChild.Data
|
||||
} else {
|
||||
item.Title = pubTime.Format("Jan 02 2006")
|
||||
title, itemurl, _ := getTitleAndUrl(article)
|
||||
if title == "" {
|
||||
title = pubTime.Format("Jan 02 2006")
|
||||
}
|
||||
|
||||
if itemurl == "" {
|
||||
itemurl = url
|
||||
}
|
||||
if itemurl != "" && !strings.HasPrefix(itemurl, "http://") && !strings.HasPrefix(itemurl, "https://") {
|
||||
itemurl = path.Join(url, itemurl)
|
||||
}
|
||||
item.Title = title
|
||||
item.Url = itemurl
|
||||
return &item, nil
|
||||
}
|
||||
|
||||
|
||||
@ -9,7 +9,7 @@ import (
|
||||
"golang.org/x/net/html"
|
||||
)
|
||||
|
||||
func TestTimeParsing(t *testing.T) {
|
||||
func TestTimeParsingFormat(t *testing.T) {
|
||||
testDate, err := time.Parse("2006-Jan-02 15:04:05 -7", "2004-May-14 07:30:55 -7")
|
||||
if err != nil {
|
||||
t.Errorf("creating test date failed: %s", err)
|
||||
@ -67,7 +67,7 @@ func TestTimeParsing(t *testing.T) {
|
||||
}
|
||||
}
|
||||
|
||||
func TestArticleParsing(t *testing.T) {
|
||||
func TestArticleTimeParsing(t *testing.T) {
|
||||
testDate, err := time.Parse("2006-Jan-02", "2004-May-14")
|
||||
if err != nil {
|
||||
t.Errorf("creating test date failed: %s", err)
|
||||
@ -80,67 +80,198 @@ func TestArticleParsing(t *testing.T) {
|
||||
name string
|
||||
input string
|
||||
want_time []*time.Time
|
||||
want_article []string
|
||||
want_title []string
|
||||
}{
|
||||
{
|
||||
"article and time stripped out of basic HTML",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article>"},
|
||||
[]string{"May 14 2004"},
|
||||
},
|
||||
{
|
||||
"multiple articles",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article><article><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article></body></html>",
|
||||
[]*time.Time{&testDate, &testDate2},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article>", "<article><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article>"},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func (t *testing.T) {
|
||||
html, err := html.Parse(strings.NewReader(tt.input))
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
page := feed.SitePage{
|
||||
Url: "",
|
||||
Title: "",
|
||||
Root: html,
|
||||
Errors: make([]error, 0),
|
||||
}
|
||||
items, err := page.Parse()
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
for i, item := range items {
|
||||
if tt.want_time[i] != nil && !item.PubTime.Equal(*tt.want_time[i]) {
|
||||
t.Errorf("got %s, want %s", item.PubTime, *tt.want_time[i])
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestArticleUrls(t *testing.T) {
|
||||
var tests = []struct {
|
||||
name string
|
||||
input string
|
||||
want_url []string
|
||||
}{
|
||||
{
|
||||
"article without url",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article></body></html>",
|
||||
[]string{""},
|
||||
},
|
||||
{
|
||||
"one article with one url",
|
||||
"<html><head></head><body><article><h1><a href=\"https://example.com\">Title</a></h1><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article></body></html>",
|
||||
[]string{"https://example.com"},
|
||||
},
|
||||
{
|
||||
"multiple articles",
|
||||
"<html><head></head><body><article><h1><a href=\"https://example.com/example1\">Title</a></h1><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article><article><h1><a href=\"https://example.com/example2\">Title</a></h1><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article></body></html>",
|
||||
[]string{"https://example.com/example1", "https://example.com/example2"},
|
||||
},
|
||||
{
|
||||
"one article with multiple urls",
|
||||
"<html><head></head><body><article><h1><a href=\"https://example.com\">Title</a></h1><time datetime=\"2004-05-14\">May 14 2004</time><a href=\"https://google.com\">click me</a><p>hello world</p></article></body></html>",
|
||||
[]string{"https://example.com"},
|
||||
},
|
||||
{
|
||||
"one article with multiple h1 urls",
|
||||
"<html><head></head><body><article><h1><a href=\"https://example.com\">Title</a></h1><time datetime=\"2004-05-14\">May 14 2004</time><h1><a href=\"https://google.com\">click me</a></h1><p>hello world</p></article></body></html>",
|
||||
[]string{"https://example.com"},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func (t *testing.T) {
|
||||
html, err := html.Parse(strings.NewReader(tt.input))
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
page := feed.SitePage{
|
||||
Url: "",
|
||||
Title: "",
|
||||
Root: html,
|
||||
Errors: make([]error, 0),
|
||||
}
|
||||
items, err := page.Parse()
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
for i, item := range items {
|
||||
if item.Url != tt.want_url[i] {
|
||||
t.Errorf("got %s, want %s", item.Url, tt.want_url[i])
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestArticleTitles(t *testing.T) {
|
||||
var tests = []struct {
|
||||
name string
|
||||
input string
|
||||
want_title []string
|
||||
}{
|
||||
{
|
||||
"article and time stripped out of basic HTML",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article></body></html>",
|
||||
[]string{"May 14 2004"},
|
||||
},
|
||||
{
|
||||
"multiple articles",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article><article><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article></body></html>",
|
||||
[]string{"May 14 2004", "May 07 2004"},
|
||||
},
|
||||
{
|
||||
"multiple articles with h1",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1>hello world</article><article><time datetime=\"2004-05-07\"><h1>World</h1>May 7 2004</time>this is a second article</article></body></html>",
|
||||
[]string{"Hello", "World"},
|
||||
},
|
||||
{
|
||||
"article with h1",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1>hello world</article>"},
|
||||
[]string{"Hello"},
|
||||
},
|
||||
{
|
||||
"article with h2",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h2>Hello</h2>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h2>Hello</h2>hello world</article>"},
|
||||
[]string{"Hello"},
|
||||
},
|
||||
{
|
||||
"article with h3",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h3>Hello</h3>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h3>Hello</h3>hello world</article>"},
|
||||
[]string{"Hello"},
|
||||
},
|
||||
{
|
||||
"article with h1 and h2",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1><h2>World</h2>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1><h2>World</h2>hello world</article>"},
|
||||
[]string{"Hello"},
|
||||
},
|
||||
{
|
||||
"article with h2 and h3",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h3>Hello</h3><h2>World</h2>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h3>Hello</h3><h2>World</h2>hello world</article>"},
|
||||
[]string{"World"},
|
||||
},
|
||||
{
|
||||
"article with multiple h1",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1><h1>World</h1>hello world</article></body></html>",
|
||||
[]*time.Time{&testDate},
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time><h1>Hello</h1><h1>World</h1>hello world</article>"},
|
||||
[]string{"Hello"},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func (t *testing.T) {
|
||||
html, err := html.Parse(strings.NewReader(tt.input))
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
page := feed.SitePage{
|
||||
Url: "",
|
||||
Title: "",
|
||||
Root: html,
|
||||
Errors: make([]error, 0),
|
||||
}
|
||||
items, err := page.Parse()
|
||||
if err != nil {
|
||||
t.Errorf("error: %s", err)
|
||||
}
|
||||
for i, item := range items {
|
||||
if item.Title != tt.want_title[i] {
|
||||
t.Errorf("got %s, want %s", item.Title, tt.want_title[i])
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestArticleParsing(t *testing.T) {
|
||||
var tests = []struct {
|
||||
name string
|
||||
input string
|
||||
want_article []string
|
||||
}{
|
||||
{
|
||||
"article and time stripped out of basic HTML",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article></body></html>",
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article>"},
|
||||
},
|
||||
{
|
||||
"multiple articles",
|
||||
"<html><head></head><body><article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article><article><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article></body></html>",
|
||||
[]string{"<article><time datetime=\"2004-05-14\">May 14 2004</time>hello world</article>", "<article><time datetime=\"2004-05-07\">May 7 2004</time>this is a second article</article>"},
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range tests {
|
||||
t.Run(tt.name, func (t *testing.T) {
|
||||
html, err := html.Parse(strings.NewReader(tt.input))
|
||||
@ -161,12 +292,6 @@ func TestArticleParsing(t *testing.T) {
|
||||
if item.RawText != tt.want_article[i] {
|
||||
t.Errorf("got %s, want %s", item.RawText, tt.want_article[i])
|
||||
}
|
||||
if tt.want_time[i] != nil && !item.PubTime.Equal(*tt.want_time[i]) {
|
||||
t.Errorf("got %s, want %s", item.PubTime, *tt.want_time[i])
|
||||
}
|
||||
if item.Title != tt.want_title[i] {
|
||||
t.Errorf("got %s, want %s", item.Title, tt.want_title[i])
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user