Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame^] | 1 | #!/usr/bin/env python |
| 2 | # Copyright 2014 the V8 project authors. All rights reserved. |
| 3 | # Use of this source code is governed by a BSD-style license that can be |
| 4 | # found in the LICENSE file. |
| 5 | |
| 6 | """ |
| 7 | Script to check for new clusterfuzz issues since the last rolled v8 revision. |
| 8 | |
| 9 | Returns a json list with test case IDs if any. |
| 10 | |
| 11 | Security considerations: The security key and request data must never be |
| 12 | written to public logs. Public automated callers of this script should |
| 13 | suppress stdout and stderr and only process contents of the results_file. |
| 14 | """ |
| 15 | |
| 16 | |
| 17 | import argparse |
| 18 | import httplib |
| 19 | import json |
| 20 | import os |
| 21 | import re |
| 22 | import sys |
| 23 | import urllib |
| 24 | import urllib2 |
| 25 | |
| 26 | |
| 27 | # Constants to git repos. |
| 28 | BASE_URL = "https://chromium.googlesource.com" |
| 29 | DEPS_LOG = BASE_URL + "/chromium/src/+log/master/DEPS?format=JSON" |
| 30 | |
| 31 | # Constants for retrieving v8 rolls. |
| 32 | CRREV = "https://cr-rev.appspot.com/_ah/api/crrev/v1/commit/%s" |
| 33 | V8_COMMIT_RE = re.compile( |
| 34 | r"^Update V8 to version \d+\.\d+\.\d+ \(based on ([a-fA-F0-9]+)\)\..*") |
| 35 | |
| 36 | # Constants for the clusterfuzz backend. |
| 37 | HOSTNAME = "backend-dot-cluster-fuzz.appspot.com" |
| 38 | |
| 39 | # Crash patterns. |
| 40 | V8_INTERNAL_RE = re.compile(r"^v8::internal.*") |
| 41 | ANY_RE = re.compile(r".*") |
| 42 | |
| 43 | # List of all api requests. |
| 44 | BUG_SPECS = [ |
| 45 | { |
| 46 | "args": { |
| 47 | "job_type": "linux_asan_chrome_v8", |
| 48 | "reproducible": "True", |
| 49 | "open": "True", |
| 50 | "bug_information": "", |
| 51 | }, |
| 52 | "crash_state": V8_INTERNAL_RE, |
| 53 | }, |
| 54 | { |
| 55 | "args": { |
| 56 | "job_type": "linux_asan_d8_dbg", |
| 57 | "reproducible": "True", |
| 58 | "open": "True", |
| 59 | "bug_information": "", |
| 60 | }, |
| 61 | "crash_state": ANY_RE, |
| 62 | }, |
| 63 | ] |
| 64 | |
| 65 | |
| 66 | def GetRequest(url): |
| 67 | url_fh = urllib2.urlopen(url, None, 60) |
| 68 | try: |
| 69 | return url_fh.read() |
| 70 | finally: |
| 71 | url_fh.close() |
| 72 | |
| 73 | |
| 74 | def GetLatestV8InChromium(): |
| 75 | """Returns the commit position number of the latest v8 roll in chromium.""" |
| 76 | |
| 77 | # Check currently rolled v8 revision. |
| 78 | result = GetRequest(DEPS_LOG) |
| 79 | if not result: |
| 80 | return None |
| 81 | |
| 82 | # Strip security header and load json. |
| 83 | commits = json.loads(result[5:]) |
| 84 | |
| 85 | git_revision = None |
| 86 | for commit in commits["log"]: |
| 87 | # Get latest commit that matches the v8 roll pattern. Ignore cherry-picks. |
| 88 | match = re.match(V8_COMMIT_RE, commit["message"]) |
| 89 | if match: |
| 90 | git_revision = match.group(1) |
| 91 | break |
| 92 | else: |
| 93 | return None |
| 94 | |
| 95 | # Get commit position number for v8 revision. |
| 96 | result = GetRequest(CRREV % git_revision) |
| 97 | if not result: |
| 98 | return None |
| 99 | |
| 100 | commit = json.loads(result) |
| 101 | assert commit["repo"] == "v8/v8" |
| 102 | return commit["number"] |
| 103 | |
| 104 | |
| 105 | def APIRequest(key, **params): |
| 106 | """Send a request to the clusterfuzz api. |
| 107 | |
| 108 | Returns a json dict of the response. |
| 109 | """ |
| 110 | |
| 111 | params["api_key"] = key |
| 112 | params = urllib.urlencode(params) |
| 113 | |
| 114 | headers = {"Content-type": "application/x-www-form-urlencoded"} |
| 115 | |
| 116 | try: |
| 117 | conn = httplib.HTTPSConnection(HOSTNAME) |
| 118 | conn.request("POST", "/_api/", params, headers) |
| 119 | |
| 120 | response = conn.getresponse() |
| 121 | |
| 122 | # Never leak "data" into public logs. |
| 123 | data = response.read() |
| 124 | except: |
| 125 | raise Exception("ERROR: Connection problem.") |
| 126 | |
| 127 | try: |
| 128 | return json.loads(data) |
| 129 | except: |
| 130 | raise Exception("ERROR: Could not read response. Is your key valid?") |
| 131 | |
| 132 | return None |
| 133 | |
| 134 | |
| 135 | def Main(): |
| 136 | parser = argparse.ArgumentParser() |
| 137 | parser.add_argument("-k", "--key-file", required=True, |
| 138 | help="A file with the clusterfuzz api key.") |
| 139 | parser.add_argument("-r", "--results-file", |
| 140 | help="A file to write the results to.") |
| 141 | options = parser.parse_args() |
| 142 | |
| 143 | # Get api key. The key's content must never be logged. |
| 144 | assert options.key_file |
| 145 | with open(options.key_file) as f: |
| 146 | key = f.read().strip() |
| 147 | assert key |
| 148 | |
| 149 | revision_number = GetLatestV8InChromium() |
| 150 | |
| 151 | results = [] |
| 152 | for spec in BUG_SPECS: |
| 153 | args = dict(spec["args"]) |
| 154 | # Use incremented revision as we're interested in all revision greater than |
| 155 | # what's currently rolled into chromium. |
| 156 | if revision_number: |
| 157 | args["revision_greater_or_equal"] = str(int(revision_number) + 1) |
| 158 | |
| 159 | # Never print issue details in public logs. |
| 160 | issues = APIRequest(key, **args) |
| 161 | assert issues is not None |
| 162 | for issue in issues: |
| 163 | if re.match(spec["crash_state"], issue["crash_state"]): |
| 164 | results.append(issue["id"]) |
| 165 | |
| 166 | if options.results_file: |
| 167 | with open(options.results_file, "w") as f: |
| 168 | f.write(json.dumps(results)) |
| 169 | else: |
| 170 | print results |
| 171 | |
| 172 | |
| 173 | if __name__ == "__main__": |
| 174 | sys.exit(Main()) |