nitter/src/search.nim

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Nim
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import strutils, strformat, sequtils
import types
const
separators = @["AND", "OR"]
validFilters = @[
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"media", "images", "twimg",
"native_video", "consumer_video", "pro_video",
"links", "news", "quote", "mentions",
"replies", "retweets", "nativeretweets",
"verified", "safe"
]
# Experimental, this might break in the future
# Till then, it results in shorter urls
const
posPrefix = "thGAVUV0VFVBa"
posSuffix = "EjUAFQAlAFUAFQAA"
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proc initQuery*(filters, includes, excludes, separator: string; name=""): Query =
var sep = separator.strip().toUpper()
Query(
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kind: custom,
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filters: filters.split(",").filterIt(it in validFilters),
includes: includes.split(",").filterIt(it in validFilters),
excludes: excludes.split(",").filterIt(it in validFilters),
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fromUser: @[name],
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sep: if sep in separators: sep else: ""
)
proc getMediaQuery*(name: string): Query =
Query(
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kind: media,
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filters: @["twimg", "native_video"],
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fromUser: @[name],
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sep: "OR"
)
proc getReplyQuery*(name: string): Query =
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Query(
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kind: replies,
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includes: @["nativeretweets"],
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fromUser: @[name]
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)
proc genQueryParam*(query: Query): string =
var filters: seq[string]
var param: string
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for i, user in query.fromUser:
param &= &"from:{user} "
if i < query.fromUser.high:
param &= "OR "
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for f in query.filters:
filters.add "filter:" & f
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for i in query.includes:
filters.add "include:" & i
for e in query.excludes:
filters.add "-filter:" & e
return strip(param & filters.join(&" {query.sep} "))
proc genQueryUrl*(query: Query): string =
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if query.kind == multi: return "?"
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result = &"/{query.kind}?"
if query.kind != custom: return
var params: seq[string]
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if query.filters.len > 0:
params &= "filter=" & query.filters.join(",")
if query.includes.len > 0:
params &= "include=" & query.includes.join(",")
if query.excludes.len > 0:
params &= "not=" & query.excludes.join(",")
if query.sep.len > 0:
params &= "sep=" & query.sep
if params.len > 0:
result &= params.join("&") & "&"
proc cleanPos*(pos: string): string =
pos.multiReplace((posPrefix, ""), (posSuffix, ""))
proc genPos*(pos: string): string =
posPrefix & pos & posSuffix