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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
|
#!/usr/bin/python3
import sys, re, sqlite3, json
import os.path
from http.server import HTTPServer, BaseHTTPRequestHandler
import urllib.parse
hostname = "localhost"
port = 8000
dbFile = "data/data.db"
imgDir = "../public/img/"
SEARCH_SUGG_LIMIT = 5
usageInfo = f"usage: {sys.argv[0]}\n"
usageInfo += "Starts a server that listens for GET requests to http://" + hostname + ":" + str(port) + ".\n"
usageInfo += "Responds to path+query /data/type1?name=name1 with JSON data.\n"
usageInfo += "An additional query parameter tree=reduced is usable to get reduced-tree data\n"
usageInfo += "\n"
usageInfo += "If type1 is 'node': Responds with map from names to TolNode objects for node name1 and it's children.\n"
usageInfo += "If type1 is 'chain': Like 'node', but gets nodes from name1 up to the root, and their direct children.\n"
usageInfo += "If type1 is 'search': Responds with a SearchSuggResponse object.\n"
usageInfo += "If type1 is 'info': Responds with a TileInfoResponse object.\n"
usageInfo += "(Object type information can be found in src/)\n"
if len(sys.argv) > 1:
print(usageInfo, file=sys.stderr)
sys.exit(1)
# Connect to db, and load spellfix extension
dbCon = sqlite3.connect(dbFile)
# Some functions
def lookupNodes(names, useReducedTree):
# Get node info
nodeObjs = {}
cur = dbCon.cursor()
nodesTable = "nodes" if not useReducedTree else "r_nodes"
edgesTable = "edges" if not useReducedTree else "r_edges"
queryParamStr = ",".join(["?"] * len(names))
query = "SELECT name, tips FROM {} WHERE name IN ({})".format(nodesTable, queryParamStr)
for (nodeName, tips) in cur.execute(query, names):
nodeObjs[nodeName] = {
"children": [],
"parent": None,
"tips": tips,
"pSupport": False,
"commonName": None,
"imgName": None,
}
query = "SELECT node, child FROM {} WHERE node IN ({})".format(edgesTable, queryParamStr)
for (nodeName, childName) in cur.execute(query, names):
nodeObjs[nodeName]["children"].append(childName)
query = "SELECT node, child, p_support FROM {} WHERE child IN ({})".format(edgesTable, queryParamStr)
for (nodeName, childName, pSupport) in cur.execute(query, names):
nodeObjs[childName]["parent"] = None if nodeName == "" else nodeName
nodeObjs[childName]["pSupport"] = (pSupport == 1)
# Get image names
query = "SELECT nodes.name, eol_id FROM" \
" nodes INNER JOIN eol_ids ON nodes.name = eol_ids.name" \
" INNER JOIN images ON eol_ids.id = images.eol_id WHERE" \
" nodes.name IN ({})".format(",".join(["?"] * len(nodeObjs)))
for (name, eolId) in cur.execute(query, list(nodeObjs.keys())):
nodeObjs[name]["imgName"] = str(eolId) + ".jpg"
# Get 'linked' images for unresolved names
unresolvedNames = [n for n in nodeObjs if nodeObjs[n]["imgName"] == None]
query = "SELECT name, eol_id, eol_id2 from linked_imgs WHERE name IN ({})"
query = query.format(",".join(["?"] * len(unresolvedNames)))
for (name, eolId, eolId2) in cur.execute(query, unresolvedNames):
if eolId2 == None:
nodeObjs[name]["imgName"] = str(eolId) + ".jpg"
else:
nodeObjs[name]["imgName"] = [
str(eolId) + ".jpg" if eolId != 0 else None,
str(eolId2) + ".jpg" if eolId2 != 0 else None,
]
# Get preferred-name info
query = "SELECT name, alt_name FROM names WHERE pref_alt = 1 AND name IN ({})".format(queryParamStr)
for (name, altName) in cur.execute(query, names):
if altName != name:
nodeObjs[name]["commonName"] = altName
#
return nodeObjs
def lookupName(name, useReducedTree):
cur = dbCon.cursor()
results = []
hasMore = False
# Get node names and alt-names
(query1, query2) = (None, None)
if not useReducedTree:
query1 = "SELECT DISTINCT name FROM nodes" \
" WHERE name LIKE ? ORDER BY length(name) LIMIT ?"
query2 = "SELECT DISTINCT alt_name, name FROM names" \
" WHERE alt_name LIKE ? ORDER BY length(alt_name) LIMIT ?"
else:
query1 = "SELECT DISTINCT name FROM r_nodes" \
" WHERE name LIKE ? ORDER BY length(name) LIMIT ?"
query2 = "SELECT DISTINCT alt_name, names.name FROM" \
" names INNER JOIN r_nodes ON names.name = r_nodes.name" \
" WHERE alt_name LIKE ? ORDER BY length(alt_name) LIMIT ?"
# Join results, and get shortest
temp = []
for row in cur.execute(query1, (name + "%", SEARCH_SUGG_LIMIT + 1)):
temp.append({"name": row[0], "canonicalName": None})
for row in cur.execute(query2, (name + "%", SEARCH_SUGG_LIMIT + 1)):
temp.append({"name": row[0], "canonicalName": row[1]})
temp.sort(key=lambda x: x["name"])
temp.sort(key=lambda x: len(x["name"]))
results = temp[:SEARCH_SUGG_LIMIT]
if len(temp) > SEARCH_SUGG_LIMIT:
hasMore = True
#
return [results, hasMore]
def lookupNodeInfo(name, useReducedTree):
cur = dbCon.cursor()
# Get node-object info
temp = lookupNodes([name], useReducedTree)
nodeObj = temp[name] if name in temp else None
# Get node desc
descData = None
match = re.fullmatch(r"\[(.+) \+ (.+)]", name)
if match == None:
query = "SELECT desc, redirected, wiki_id, from_dbp from descs WHERE descs.name = ?"
row = cur.execute(query, (name,)).fetchone()
if row != None:
descData = {"text": row[0], "fromRedirect": row[1] == 1, "wikiId": row[2], "fromDbp": row[3] == 1}
else:
# Get descs for compound-node element
descData = [None, None]
query = "SELECT name, desc, redirected, wiki_id, from_dbp from descs WHERE descs.name IN (?, ?)"
for row in cur.execute(query, match.group(1,2)):
if row[0] == match.group(1):
descData[0] = {"text": row[1], "fromRedirect": row[2] == 1, "wikiId": row[3], "fromDbp": row[4] == 1}
else:
descData[1] = {"text": row[1], "fromRedirect": row[2] == 1, "wikiId": row[3], "fromDbp": row[4] == 1}
# Get img info
imgData = None
if nodeObj != None:
if isinstance(nodeObj["imgName"], str):
eolId = int(nodeObj["imgName"][:-4]) # Convert filename excluding .jpg suffix
query = "SELECT eol_id, source_url, license, copyright_owner FROM images WHERE eol_id = ?"
row = cur.execute(query, (eolId,)).fetchone()
imgData = {"eolId": row[0], "sourceUrl": row[1], "license": row[2], "copyrightOwner": row[3]}
elif isinstance(nodeObj["imgName"], list):
# Get info for compound-image parts
imgData = [None, None]
idsToLookup = [int(n[:-4]) for n in nodeObj["imgName"] if n != None]
query = "SELECT eol_id, source_url, license, copyright_owner FROM images WHERE eol_id IN (?, ?)"
for row in cur.execute(query, idsToLookup):
if str(row[0]) == nodeObj["imgName"][0][:-4]:
imgData[0] = {"eolId": row[0], "sourceUrl": row[1], "license": row[2], "copyrightOwner": row[3]}
else:
imgData[1] = {"eolId": row[0], "sourceUrl": row[1], "license": row[2], "copyrightOwner": row[3]}
#
return {"descData": descData, "imgData": imgData, "nodeObj": nodeObj}
class DbServer(BaseHTTPRequestHandler):
def do_GET(self):
# Parse URL
urlParts = urllib.parse.urlparse(self.path)
path = urllib.parse.unquote(urlParts.path)
queryDict = urllib.parse.parse_qs(urlParts.query)
# Check first element of path
match = re.match(r"/([^/]+)/(.+)", path)
if match != None and match.group(1) == "data" and "name" in queryDict and \
("tree" not in queryDict or queryDict["tree"][0] == "reduced"):
reqType = match.group(2)
name = queryDict["name"][0]
useReducedTree = "tree" in queryDict
# Check query string
if reqType == "node":
nodeObjs = lookupNodes([name], useReducedTree)
if len(nodeObjs) > 0:
nodeObj = nodeObjs[name]
childNodeObjs = lookupNodes(nodeObj["children"], useReducedTree)
childNodeObjs[name] = nodeObj
self.respondJson(childNodeObjs)
return
elif reqType == "chain":
results = {}
ranOnce = False
while True:
# Get node
nodeObjs = lookupNodes([name], useReducedTree)
if len(nodeObjs) == 0:
if not ranOnce:
self.respondJson(results)
return
print("ERROR: Parent-chain node {} not found".format(name), file=sys.stderr)
break
nodeObj = nodeObjs[name]
results[name] = nodeObj
# Conditionally add children
if not ranOnce:
ranOnce = True
else:
childNamesToAdd = []
for childName in nodeObj["children"]:
if childName not in results:
childNamesToAdd.append(childName)
childNodeObjs = lookupNodes(childNamesToAdd, useReducedTree)
results.update(childNodeObjs)
# Check if root
if nodeObj["parent"] == None:
self.respondJson(results)
return
else:
name = nodeObj["parent"]
elif reqType == "search":
self.respondJson(lookupName(name, useReducedTree))
return
elif reqType == "info":
self.respondJson(lookupNodeInfo(name, useReducedTree))
return
self.send_response(404)
self.end_headers()
self.end_headers()
def respondJson(self, val):
self.send_response(200)
self.send_header("Content-type", "application/json")
self.end_headers()
self.wfile.write(json.dumps(val).encode("utf-8"))
server = HTTPServer((hostname, port), DbServer)
print("Server started at http://{}:{}".format(hostname, port))
try:
server.serve_forever()
except KeyboardInterrupt:
pass
server.server_close()
dbCon.close()
print("Server stopped")
|
