going-flying.com gemini git repository
7bdf74dfa94a0ce70da676c89bc0cc088379607a - Matthew Ernisse - 1599004345
new post
diff --git a/cgi-bin/rfc b/cgi-bin/rfc
index 137055a..ccea6e3 100755
--- a/cgi-bin/rfc
+++ b/cgi-bin/rfc
@@ -1,5 +1,31 @@
#!/usr/bin/env python3
+''' rfc (c) 2020 Matthew J Ernisse <matt@going-flying.com>
+All Rights Reserved.
+Redistribution and use in source and binary forms,
+with or without modification, are permitted provided
+that the following conditions are met:
+
+ * Redistributions of source code must retain the
+ above copyright notice, this list of conditions
+ and the following disclaimer.
+ * Redistributions in binary form must reproduce
+ the above copyright notice, this list of conditions
+ and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+'''
import os
import re
import requests
diff --git a/users/mernisse/articles/12.gmi b/users/mernisse/articles/12.gmi
new file mode 100644
index 0000000..dddcc9f
--- /dev/null
+++ b/users/mernisse/articles/12.gmi
@@ -0,0 +1,102 @@
+---
+Title: An RFC proxy
+Date: 9/1/2020 19:45
+
+Just a quick note. I updated the post I wrote the other day wondering if
+the late adoption of IPv6 helped push adoption of the cloud-as-a-middleman
+use case to use a small proxy script I wrote. The script proxies to the
+IETF's web site and fetches the plain text version of an RFC. It seemed
+silly to make the reader refer to HTTPS urls of plain text documents
+while reading a Gemini document.
+
+=> /~mernisse/10.gmi Did the slow adoption of IPv6 lead to the cloud?
+
+If you are interested you can retrieve any valid RFC from the IETF by
+simply passing the plain text file name to the script. If you are interested
+the script is below.
+
+```
+#!/usr/bin/env python3
+''' rfc (c) 2020 Matthew J Ernisse <matt@going-flying.com>
+All Rights Reserved.
+
+Redistribution and use in source and binary forms,
+with or without modification, are permitted provided
+that the following conditions are met:
+
+ * Redistributions of source code must retain the
+ above copyright notice, this list of conditions
+ and the following disclaimer.
+ * Redistributions in binary form must reproduce
+ the above copyright notice, this list of conditions
+ and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+'''
+import os
+import re
+import requests
+import sys
+
+def check_requested_path():
+ ''' Molly Brown sends us the rest of the requested url on stdin, so
+ read that and check to make sure it is a request for an RFC.
+ '''
+ rfc = os.environ.get('PATH_INFO')
+ if not rfc:
+ raise ValueError('No RFC requested.')
+
+ matches = re.search(r'^rfc\d+\.txt', rfc)
+ if not matches:
+ raise ValueError('Request must be a RFC text file.')
+
+ return rfc
+
+
+def get_rfc(rfc):
+ ''' Return the text contents of an RFC. '''
+ resp = requests.get(
+ f'https://tools.ietf.org/rfc/{rfc}',
+ headers={
+ 'User-Agent': 'gemini-rfc-proxy/matt@going-flying.com'
+ }
+ )
+
+ resp.raise_for_status()
+ return resp.text
+
+
+if __name__ == "__main__":
+ try:
+ rfc = check_requested_path()
+ body = get_rfc(rfc)
+ except ValueError as e:
+ print(f'59 {str(e)}\r\n')
+ sys.exit()
+
+ except requests.exceptions.HTTPError as e:
+ if e.errno == 404:
+ print(f'51 Not Found.\r\n')
+ sys.exit()
+
+ elif e.errno > 399 and e.errno < 500:
+ print(f'43 {e.strerror}\r\n')
+ sys.exit()
+ else:
+ print(f'53 {e.strerror}\r\n')
+ sys.exit()
+
+ print('20 text/plain\r\n')
+ print(body)
+```