1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
import typing
import jinja2
from starlette.background import BackgroundTask
from starlette.templating import _TemplateResponse
class Jinja2Templates:
"""
This is a patched version of starlette.templating.Jinja2Templates that
supports extensions (list of strings) passed to jinja2.Environment
"""
def __init__(self, directory: str, extensions: typing.List[str] = []) -> None:
assert jinja2 is not None, "jinja2 must be installed to use Jinja2Templates"
self.env = self.get_env(directory, extensions)
def get_env(
self, directory: str, extensions: typing.List[str] = []
) -> "jinja2.Environment":
@jinja2.pass_context
def url_for(context: dict, name: str, **path_params: typing.Any) -> str:
request = context["request"]
return request.url_for(name, **path_params)
loader = jinja2.FileSystemLoader(directory)
env = jinja2.Environment(loader=loader, extensions=extensions, autoescape=True)
env.globals["url_for"] = url_for
return env
def get_template(self, name: str) -> "jinja2.Template":
return self.env.get_template(name)
def TemplateResponse(
self,
name: str,
context: dict,
status_code: int = 200,
headers: dict = None,
media_type: str = None,
background: BackgroundTask = None,
) -> _TemplateResponse:
if "request" not in context:
raise ValueError('context must include a "request" key')
template = self.get_template(name)
return _TemplateResponse(
template,
context,
status_code=status_code,
headers=headers,
media_type=media_type,
background=background,
)
def parse_accept_lang(header: str, options: typing.List[str]) -> typing.Optional[str]:
"""
Crude HTTP Accept-Language content negotiation.
Assumes that languages are specified in order of priority, etc.
"""
if not header:
return None
chunks = [v.split(";")[0].split("-")[0].split("_")[0] for v in header.split(",")]
for c in chunks:
if len(c) == 2 and c in options:
return c
return None
def test_parse_accept_lang() -> None:
assert parse_accept_lang("", []) == None
assert parse_accept_lang("en,de", []) == None
assert parse_accept_lang("en,de", ["en"]) == "en"
assert parse_accept_lang("en-GB,de", ["en"]) == "en"
assert parse_accept_lang("zh_Hans_CN", ["en", "zh"]) == "zh"
assert parse_accept_lang("en,de", ["de"]) == "de"
assert (
parse_accept_lang("en-ca,en;q=0.8,en-us;q=0.6,de-de;q=0.4,de;q=0.2", ["de"])
== "de"
)
assert (
parse_accept_lang(
"en-ca,en;q=0.8,en-us;q=0.6,de-de;q=0.4,de;q=0.2", ["en", "de"]
)
== "en"
)
assert (
parse_accept_lang("en-US,en;q=0.9,zh-CN;q=0.8,zh;q=0.7", ["zh", "en", "de"])
== "en"
)
def wayback_direct_url(url: str) -> str:
"""
Re-writes a wayback replay URL to add the 'id_' suffix (or equivalent for direct file access)
"""
if not "://web.archive.org" in url:
return url
segments = url.split("/")
if len(segments) < 6 or not segments[4].isdigit():
return url
segments[4] += "id_"
return "/".join(segments)
def test_wayback_direct_url() -> None:
assert (
wayback_direct_url("http://fatcat.wiki/thing.pdf")
== "http://fatcat.wiki/thing.pdf"
)
assert (
wayback_direct_url("https://web.archive.org/web/*/http://fatcat.wiki/thing.pdf")
== "https://web.archive.org/web/*/http://fatcat.wiki/thing.pdf"
)
assert (
wayback_direct_url(
"https://web.archive.org/web/1234/http://fatcat.wiki/thing.pdf"
)
== "https://web.archive.org/web/1234id_/http://fatcat.wiki/thing.pdf"
)
assert (
wayback_direct_url(
"https://web.archive.org/web/20170811115414/http://sudjms.net/issues/5-4/pdf/8)A%20comparison%20study%20of%20histochemical%20staining%20of%20various%20tissues%20after.pdf"
)
== "https://web.archive.org/web/20170811115414id_/http://sudjms.net/issues/5-4/pdf/8)A%20comparison%20study%20of%20histochemical%20staining%20of%20various%20tissues%20after.pdf"
)
def make_access_redirect_url(work_ident: str, access_type: str, access_url: str) -> str:
if access_type == "wayback" and "://web.archive.org/" in access_url:
segments = access_url.split("/")
original_url = "/".join(segments[5:])
return f"https://scholar.archive.org/work/{work_ident}/access/wayback/{original_url}"
elif access_type == "ia_file" and "://archive.org/download/" in access_url:
suffix = "/".join(access_url.split("/")[4:])
return f"https://scholar.archive.org/work/{work_ident}/access/ia_file/{suffix}"
else:
return access_url
def test_make_access_redirect_url() -> None:
assert (
make_access_redirect_url(
"lmobci36t5aelogzjsazuwxpie",
"wayback",
"https://web.archive.org/web/1234/http://fatcat.wiki/thing.pdf",
)
== "https://scholar.archive.org/work/lmobci36t5aelogzjsazuwxpie/access/wayback/http://fatcat.wiki/thing.pdf"
)
assert (
make_access_redirect_url(
"lmobci36t5aelogzjsazuwxpie",
"wayback",
"https://web.archive.org/web/1234/http://fatcat.wiki/thing.pdf?param=asdf",
)
== "https://scholar.archive.org/work/lmobci36t5aelogzjsazuwxpie/access/wayback/http://fatcat.wiki/thing.pdf?param=asdf"
)
assert (
make_access_redirect_url(
"lmobci36t5aelogzjsazuwxpie",
"ia_file",
"https://archive.org/download/something/file.pdf",
)
== "https://scholar.archive.org/work/lmobci36t5aelogzjsazuwxpie/access/ia_file/something/file.pdf"
)
assert (
make_access_redirect_url(
"lmobci36t5aelogzjsazuwxpie", "blah", "https://mit.edu/file.pdf"
)
== "https://mit.edu/file.pdf"
)
assert (
make_access_redirect_url(
"lmobci36t5aelogzjsazuwxpie",
"wayback",
"https://web.archive.org/web/20170811115414/http://sudjms.net/issues/5-4/pdf/8)A%20comparison%20study%20of%20histochemical%20staining%20of%20various%20tissues%20after.pdf",
)
== "https://scholar.archive.org/work/lmobci36t5aelogzjsazuwxpie/access/wayback/http://sudjms.net/issues/5-4/pdf/8)A%20comparison%20study%20of%20histochemical%20staining%20of%20various%20tissues%20after.pdf"
)
|
