HTTP 500 internal server error: unexpected LEFTBRACKET

[oberstet]

fwiw, this happens using https://github.com/crossbario/terraform-aws-crossbar :

27.0.0.1 - - [11/Jul/2020 00:56:49] "GET /graph.svg HTTP/1.1" 200 -
[2020-07-11 00:56:50,110] ERROR in app: Exception on /graph.json [GET]
Traceback (most recent call last):
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/blastradius/server/server.py", line 61, in graph_json
    tf = Terraform(os.getcwd())
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/blastradius/handlers/terraform.py", line 67, in __init__
    self.modules[name] = Terraform(directory=self.directory+'/'+source, settings=mod)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/blastradius/handlers/terraform.py", line 26, in __init__
    self.config = hcl.load(config_io)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/hcl/api.py", line 62, in load
    return loads(fp.read(), export_comments=export_comments)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/hcl/api.py", line 81, in loads
    return HclParser().parse(s, export_comments=export_comments)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/hcl/parser.py", line 642, in parse
    return self.yacc.parse(
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/hcl/ply/yacc.py", line 503, in parse
    tok = self.errorfunc(errtoken)
  File "/home/oberstet/cpy382_1/lib/python3.8/site-packages/hcl/parser.py", line 634, in p_error
    raise ValueError(msg)
ValueError: Line 1353, column 41614: unexpected LEFTBRACKET; expected COMMA, IDENTIFIER, STRING, COMMENT, MULTICOMMENT, MINUS, NUMBER, FLOAT, $end, RIGHTBRACE, RIGHTBRACKET, RIGHTPAREN, PERIOD
127.0.0.1 - - [11/Jul/2020 00:56:50] "GET /graph.json HTTP/1.1" 500 -

[oberstet]

environment:

(cpy382_1) oberstet@intel-nuci7:~/scm/crossbario/xbr-network-terraform$ python -V
Python 3.8.2
(cpy382_1) oberstet@intel-nuci7:~/scm/crossbario/xbr-network-terraform$ pip show blastradius
Name: BlastRadius
Version: 0.1.23
Summary: Interactive visualizations of Terraform dependency graphs
Home-page: http://pypi.python.org/pypi/BlastRadius/
Author: Patrick McMurchie
Author-email: [email protected]
License: LICENSE.txt
Location: /home/oberstet/cpy382_1/lib/python3.8/site-packages
Requires: pyhcl, jinja2, requests, BeautifulSoup4, Flask
Required-by: 
(cpy382_1) oberstet@intel-nuci7:~/scm/crossbario/xbr-network-terraform$ terraform --version
Terraform v0.12.28
+ provider.aws v2.69.0
(cpy382_1) oberstet@intel-nuci7:~/scm/crossbario/xbr-network-terraform$ 

[brianvoss]

I'm getting a similar but slightly different error with an identical stack trace.

Stacktrace

Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 2447, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1952, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1821, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.8/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1950, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.8/site-packages/flask/app.py", line 1936, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/lib/python3.8/site-packages/blastradius/server/server.py", line 61, in graph_json
    tf = Terraform(os.getcwd())
  File "/usr/local/lib/python3.8/site-packages/blastradius/handlers/terraform.py", line 26, in __init__
    self.config = hcl.load(config_io)
  File "/usr/local/lib/python3.8/site-packages/hcl/api.py", line 62, in load
    return loads(fp.read(), export_comments=export_comments)
  File "/usr/local/lib/python3.8/site-packages/hcl/api.py", line 81, in loads
    return HclParser().parse(s, export_comments=export_comments)
  File "/usr/local/lib/python3.8/site-packages/hcl/parser.py", line 642, in parse
    return self.yacc.parse(
  File "/usr/local/lib/python3.8/site-packages/hcl/ply/yacc.py", line 503, in parse
    tok = self.errorfunc(errtoken)
  File "/usr/local/lib/python3.8/site-packages/hcl/parser.py", line 634, in p_error
    raise ValueError(msg)
ValueError: Line 47, column 1254: unexpected RIGHTBRACE; expected $end, COMMA, IDENTIFIER, STRING, COMMENT, MULTICOMMENT, MINUS, NUMBER, FLOAT```

[brianvoss]

Environment

Python 3.8.4
~/P/T/terraform-aws-s3 ❯❯❯ pip3 show blastradius
Name: BlastRadius
Version: 0.1.23
Summary: Interactive visualizations of Terraform dependency graphs
Home-page: http://pypi.python.org/pypi/BlastRadius/
Author: Patrick McMurchie
Author-email: [email protected]
License: LICENSE.txt
Location: /usr/local/lib/python3.8/site-packages
Requires: BeautifulSoup4, requests, pyhcl, jinja2, Flask
Required-by:
~/P/T/terraform-aws-s3 ❯❯❯ terraform --version
Terraform v0.12.29
+ provider.aws v2.70.0```

[Jrc356]

I just made a PR that replaces pyhcl with python-hcl2 and found that it cleared up a bunch of my parsing errors. Could you try this fork and see if this clears it up?

Here's the fork: https://github.com/Jrc356/blast-radius
just clone that guy and run a pip install . in the cloned dir then use as normal

and here's the PR: #84