From 6727ec427854cce94f15c6d790b089d8b31d607f Mon Sep 17 00:00:00 2001
From: lost <lost@negativezero.link>
Date: Mon, 8 Nov 2021 00:00:00 +0000
Subject: [PATCH] Add Radiopublic support.

---
 scripts/determine_site.py         |  2 ++
 scripts/extractors/radiopublic.py | 34 +++++++++++++++++++++++++++++++
 scripts/utils.py                  |  8 +++++---
 tests/radiopublic.txt             |  2 ++
 4 files changed, 43 insertions(+), 3 deletions(-)
 create mode 100644 scripts/extractors/radiopublic.py
 create mode 100644 tests/radiopublic.txt

diff --git a/scripts/determine_site.py b/scripts/determine_site.py
index c415fd5..bbd5510 100644
--- a/scripts/determine_site.py
+++ b/scripts/determine_site.py
@@ -24,6 +24,8 @@ supported_sites = {
 
 	"pocketcasts" : ["pca.st"],
 
+	"radiopublic" : ["radiopublic.com"],
+
 	"reddit" : ["reddit.com"],
 
 	"soundcloud" : ["soundcloud.com"],
diff --git a/scripts/extractors/radiopublic.py b/scripts/extractors/radiopublic.py
new file mode 100644
index 0000000..2da88a7
--- /dev/null
+++ b/scripts/extractors/radiopublic.py
@@ -0,0 +1,34 @@
+#!/usr/bin/python3
+
+from utils import *
+from download_page import download
+from urllib.parse import unquote
+
+# portable code to get filename
+import os
+platform = os.path.basename(__file__)
+if platform.endswith(".py"):
+	platform = platform[:(-3)]
+
+def extract_from_page (page, verbosity):
+	feed = search (page, '" alt="RSS feed"/><div>', '</div>')
+	if not feed is None:
+		return feed
+
+	feed = search (page, '<a href="https://podcasters.radiopublic.com?feedUrl=', '&amp;utm_campaign=landing-page')
+	if not feed is None:
+		return unquote(feed)
+
+	feed = search (page, '\\\"feedUrl\\\":\\\"', '\\\"')
+	if not feed is None:
+		return feed
+
+def extract (url, page=None, network=False, verbosity=3, args={}):
+	# cannot get feed from URL alone
+	if not network:
+		return None
+
+	page = download (platform, url, args, verbosity)
+	feed = extract_from_page (page, verbosity)
+	if not feed is None:
+		return feed
diff --git a/scripts/utils.py b/scripts/utils.py
index e4d5c48..d0e174e 100644
--- a/scripts/utils.py
+++ b/scripts/utils.py
@@ -37,9 +37,11 @@ def search (content, begins_with, ends_with, index=0, reverse=False):
 		begins_with = ends_with[::-1]
 		ends_with = temp[::-1]
 
-	# escape + signs as needed
-	begins_with = begins_with.replace('+', "\+")
-	ends_with = ends_with.replace('+', "\+")
+	# escape symbols as needed
+	# note: backslashes MUST be escaped first.
+	for symbol in ['\\', '+', '?']:
+		begins_with = begins_with.replace(symbol, '\\' + symbol)
+		ends_with = ends_with.replace(symbol, '\\' + symbol)
 
 	# look for longest match, not shortest, if one delimeter is empty
 	if begins_with == '' or ends_with == '':
diff --git a/tests/radiopublic.txt b/tests/radiopublic.txt
new file mode 100644
index 0000000..82fa583
--- /dev/null
+++ b/tests/radiopublic.txt
@@ -0,0 +1,2 @@
+https://radiopublic.com/ThisAmerLife http://feed.thisamericanlife.org/talpodcast
+https://radiopublic.com/ThisAmerLife/s1!7460f http://feed.thisamericanlife.org/talpodcast