FeedParser::get_links() - Code Metrics - codysnider/tt-rss - Measure and Improve Code Quality continuously with Scrutinizer

FeedParser::get_links() B
last analyzed 2019-12-23 07:25 UTC

↳ Parent: FeedParser

Complexity

Conditions	11
Paths	3

Size

Total Lines	25
Code Lines	15

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	11
eloc	15
c	1
b	0
f	0
nc	3
nop	1
dl	0
loc	25
rs	7.3166

How to fix Complexity

<?php
class FeedParser {
    private $doc;
    private $error;
    private $libxml_errors = array();
    private $items;
    private $link;
    private $title;
    private $type;
    private $xpath;

    const FEED_RDF = 0;
    const FEED_RSS = 1;
    const FEED_ATOM = 2;

    public function __construct($data) {
        libxml_use_internal_errors(true);
        libxml_clear_errors();
        $this->doc = new DOMDocument();
        $this->doc->loadXML($data);

        mb_substitute_character("none");

        $error = libxml_get_last_error();

        if ($error) {

            foreach (libxml_get_errors() as $error) {
                if ($error->level == LIBXML_ERR_FATAL) {
                    if (!isset($this->error)) {
                        //currently only the first error is reported
                        $this->error = $this->format_error($error);
                    }
                    $this->libxml_errors [] = $this->format_error($error);
                }
            }
        }
        libxml_clear_errors();

        $this->items = array();
    }

    public function init() {
        $xpath = new DOMXPath($this->doc);
        $xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
        $xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');
        $xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/');
        $xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
        $xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/');
        $xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/');
        $xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
        $xpath->registerNamespace('thread', 'http://purl.org/syndication/thread/1.0');

        $this->xpath = $xpath;

        $root = $xpath->query("(//atom03:feed|//atom:feed|//channel|//rdf:rdf|//rdf:RDF)");

        if ($root && $root->length > 0) {
            $root = $root->item(0);

            if ($root) {
                switch (mb_strtolower($root->tagName)) {
                case "rdf:rdf":
                    $this->type = $this::FEED_RDF;
                    break;
                case "channel":
                    $this->type = $this::FEED_RSS;
                    break;
                case "feed":
                case "atom:feed":
                    $this->type = $this::FEED_ATOM;
                    break;
                default:
                    if (!isset($this->error)) {
                        $this->error = "Unknown/unsupported feed type";
                    }
                    return;
                }
            }

            switch ($this->type) {
            case $this::FEED_ATOM:

                $title = $xpath->query("//atom:feed/atom:title")->item(0);

                if (!$title) {
                                    $title = $xpath->query("//atom03:feed/atom03:title")->item(0);
                }


                if ($title) {
                    $this->title = $title->nodeValue;
                }

                $link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0);

                if (!$link) {
                                    $link = $xpath->query("//atom:feed/atom:link[@rel='alternate']")->item(0);
                }

                if (!$link) {
                                    $link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0);
                }

                if (!$link) {
                                    $link = $xpath->query("//atom03:feed/atom03:link[@rel='alternate']")->item(0);
                }

                if ($link && $link->hasAttributes()) {
                    $this->link = $link->getAttribute("href");
                }

                $articles = $xpath->query("//atom:entry");

                if (!$articles || $articles->length == 0) {
                                    $articles = $xpath->query("//atom03:entry");
                }

                foreach ($articles as $article) {
                    array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath));
                }

                break;
            case $this::FEED_RSS:
                $title = $xpath->query("//channel/title")->item(0);

                if ($title) {
                    $this->title = $title->nodeValue;
                }

                $link = $xpath->query("//channel/link")->item(0);

                if ($link) {
                    if ($link->getAttribute("href")) {
                                            $this->link = $link->getAttribute("href");
                    } else if ($link->nodeValue) {
                                            $this->link = $link->nodeValue;
                    }
                }

                $articles = $xpath->query("//channel/item");

                foreach ($articles as $article) {
                    array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
                }

                break;
            case $this::FEED_RDF:
                $xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/');

                $title = $xpath->query("//rssfake:channel/rssfake:title")->item(0);

                if ($title) {
                    $this->title = $title->nodeValue;
                }

                $link = $xpath->query("//rssfake:channel/rssfake:link")->item(0);

                if ($link) {
                    $this->link = $link->nodeValue;
                }

                $articles = $xpath->query("//rssfake:item");

                foreach ($articles as $article) {
                    array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
                }

                break;

            }

            if ($this->title) {
                $this->title = trim($this->title);
            }
            if ($this->link) {
                $this->link = trim($this->link);
            }

        } else {
            if (!isset($this->error)) {
                $this->error = "Unknown/unsupported feed type";
            }
            return;
        }
    }

    public function format_error($error) {
        if ($error) {
            return sprintf("LibXML error %s at line %d (column %d): %s",
                $error->code, $error->line, $error->column,
                $error->message);
        } else {
            return "";
        }
    }

    // libxml may have invalid unicode data in error messages
    public function error() {
        return UConverter::transcode($this->error, 'UTF-8', 'UTF-8');
    }

    // WARNING: may return invalid unicode data
    public function errors() {
        return $this->libxml_errors;
    }

    public function get_link() {
        return clean($this->link);
    }

    public function get_title() {
        return clean($this->title);
    }

    public function get_items() {
        return $this->items;
    }

    public function get_links($rel) {
        $rv = array();

        switch ($this->type) {
        case $this::FEED_ATOM:
            $links = $this->xpath->query("//atom:feed/atom:link");

            foreach ($links as $link) {
                if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
                    array_push($rv, clean(trim($link->getAttribute('href'))));
                }
            }
            break;
        case $this::FEED_RSS:
            $links = $this->xpath->query("//atom:link");

            foreach ($links as $link) {
                if (!$rel || $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
                    array_push($rv, clean(trim($link->getAttribute('href'))));
                }
            }
            break;
        }

        return $rv;
    }
}


1			<?php
2			class FeedParser {
3			private $doc;
4			private $error;
5			private $libxml_errors = array();
6			private $items;
7			private $link;
8			private $title;
9			private $type;
10			private $xpath;
11
12			const FEED_RDF = 0;
13			const FEED_RSS = 1;
14			const FEED_ATOM = 2;
15
16			public function __construct($data) {
17			libxml_use_internal_errors(true);
18			libxml_clear_errors();
19			$this->doc = new DOMDocument();
20			$this->doc->loadXML($data);
21
22			mb_substitute_character("none");
23
24			$error = libxml_get_last_error();
25
26			if ($error) {
			0 ignored issues – show introduced 2019-12-19 19:08 UTC by Report Bug Copy Issue Report `$error` is of type `LibXMLError`, thus it always evaluated to `true`. Loading history...
27			foreach (libxml_get_errors() as $error) {
28			if ($error->level == LIBXML_ERR_FATAL) {
29			if (!isset($this->error)) {
30			//currently only the first error is reported
31			$this->error = $this->format_error($error);
32			}
33			$this->libxml_errors [] = $this->format_error($error);
34			}
35			}
36			}
37			libxml_clear_errors();
38
39			$this->items = array();
40			}
41
42			public function init() {
43			$xpath = new DOMXPath($this->doc);
44			$xpath->registerNamespace('atom', 'http://www.w3.org/2005/Atom');
45			$xpath->registerNamespace('atom03', 'http://purl.org/atom/ns#');
46			$xpath->registerNamespace('media', 'http://search.yahoo.com/mrss/');
47			$xpath->registerNamespace('rdf', 'http://www.w3.org/1999/02/22-rdf-syntax-ns#');
48			$xpath->registerNamespace('slash', 'http://purl.org/rss/1.0/modules/slash/');
49			$xpath->registerNamespace('dc', 'http://purl.org/dc/elements/1.1/');
50			$xpath->registerNamespace('content', 'http://purl.org/rss/1.0/modules/content/');
51			$xpath->registerNamespace('thread', 'http://purl.org/syndication/thread/1.0');
52
53			$this->xpath = $xpath;
54
55			$root = $xpath->query("(//atom03:feed\|//atom:feed\|//channel\|//rdf:rdf\|//rdf:RDF)");
56
57			if ($root && $root->length > 0) {
58			$root = $root->item(0);
59
60			if ($root) {
61			switch (mb_strtolower($root->tagName)) {
62			case "rdf:rdf":
63			$this->type = $this::FEED_RDF;
64			break;
65			case "channel":
66			$this->type = $this::FEED_RSS;
67			break;
68			case "feed":
69			case "atom:feed":
70			$this->type = $this::FEED_ATOM;
71			break;
72			default:
73			if (!isset($this->error)) {
74			$this->error = "Unknown/unsupported feed type";
75			}
76			return;
77			}
78			}
79
80			switch ($this->type) {
81			case $this::FEED_ATOM:
82
83			$title = $xpath->query("//atom:feed/atom:title")->item(0);
84
85			if (!$title) {
86			$title = $xpath->query("//atom03:feed/atom03:title")->item(0);
87			}
88
89
90			if ($title) {
91			$this->title = $title->nodeValue;
92			}
93
94			$link = $xpath->query("//atom:feed/atom:link[not(@rel)]")->item(0);
95
96			if (!$link) {
97			$link = $xpath->query("//atom:feed/atom:link[@rel='alternate']")->item(0);
98			}
99
100			if (!$link) {
101			$link = $xpath->query("//atom03:feed/atom03:link[not(@rel)]")->item(0);
102			}
103
104			if (!$link) {
105			$link = $xpath->query("//atom03:feed/atom03:link[@rel='alternate']")->item(0);
106			}
107
108			if ($link && $link->hasAttributes()) {
109			$this->link = $link->getAttribute("href");
110			}
111
112			$articles = $xpath->query("//atom:entry");
113
114			if (!$articles \|\| $articles->length == 0) {
115			$articles = $xpath->query("//atom03:entry");
116			}
117
118			foreach ($articles as $article) {
119			array_push($this->items, new FeedItem_Atom($article, $this->doc, $this->xpath));
120			}
121
122			break;
123			case $this::FEED_RSS:
124			$title = $xpath->query("//channel/title")->item(0);
125
126			if ($title) {
127			$this->title = $title->nodeValue;
128			}
129
130			$link = $xpath->query("//channel/link")->item(0);
131
132			if ($link) {
133			if ($link->getAttribute("href")) {
134			$this->link = $link->getAttribute("href");
135			} else if ($link->nodeValue) {
136			$this->link = $link->nodeValue;
137			}
138			}
139
140			$articles = $xpath->query("//channel/item");
141
142			foreach ($articles as $article) {
143			array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
144			}
145
146			break;
147			case $this::FEED_RDF:
148			$xpath->registerNamespace('rssfake', 'http://purl.org/rss/1.0/');
149
150			$title = $xpath->query("//rssfake:channel/rssfake:title")->item(0);
151
152			if ($title) {
153			$this->title = $title->nodeValue;
154			}
155
156			$link = $xpath->query("//rssfake:channel/rssfake:link")->item(0);
157
158			if ($link) {
159			$this->link = $link->nodeValue;
160			}
161
162			$articles = $xpath->query("//rssfake:item");
163
164			foreach ($articles as $article) {
165			array_push($this->items, new FeedItem_RSS($article, $this->doc, $this->xpath));
166			}
167
168			break;
169
170			}
171
172			if ($this->title) {
173			$this->title = trim($this->title);
174			}
175			if ($this->link) {
176			$this->link = trim($this->link);
177			}
178
179			} else {
180			if (!isset($this->error)) {
181			$this->error = "Unknown/unsupported feed type";
182			}
183			return;
184			}
185			}
186
187			public function format_error($error) {
188			if ($error) {
189			return sprintf("LibXML error %s at line %d (column %d): %s",
190			$error->code, $error->line, $error->column,
191			$error->message);
192			} else {
193			return "";
194			}
195			}
196
197			// libxml may have invalid unicode data in error messages
198			public function error() {
199			return UConverter::transcode($this->error, 'UTF-8', 'UTF-8');
200			}
201
202			// WARNING: may return invalid unicode data
203			public function errors() {
204			return $this->libxml_errors;
205			}
206
207			public function get_link() {
208			return clean($this->link);
209			}
210
211			public function get_title() {
212			return clean($this->title);
213			}
214
215			public function get_items() {
216			return $this->items;
217			}
218
219			public function get_links($rel) {
220			$rv = array();
221
222			switch ($this->type) {
223			case $this::FEED_ATOM:
224			$links = $this->xpath->query("//atom:feed/atom:link");
225
226			foreach ($links as $link) {
227			if (!$rel \|\| $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
228			array_push($rv, clean(trim($link->getAttribute('href'))));
229			}
230			}
231			break;
232			case $this::FEED_RSS:
233			$links = $this->xpath->query("//atom:link");
234
235			foreach ($links as $link) {
236			if (!$rel \|\| $link->hasAttribute('rel') && $link->getAttribute('rel') == $rel) {
237			array_push($rv, clean(trim($link->getAttribute('href'))));
238			}
239			}
240			break;
241			}
242
243			return $rv;
244			}
245			}
246

codysnider / tt-rss

FeedParser::get_links() B last analyzed 2019-12-23 07:25 UTC

Complexity

Size

Duplication

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

Filter issues like

FeedParser::get_links() B
last analyzed 2019-12-23 07:25 UTC