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/*
* Copyright 2018 Allan Wang
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.pitchedapps.frost.facebook.requests
import com.pitchedapps.frost.BuildConfig
import com.pitchedapps.frost.facebook.FB_JSON_URL_MATCHER
import com.pitchedapps.frost.facebook.USER_AGENT
import com.pitchedapps.frost.facebook.get
import okhttp3.Call
import okhttp3.FormBody
import okhttp3.OkHttpClient
import okhttp3.Request
import okhttp3.logging.HttpLoggingInterceptor
import org.apache.commons.text.StringEscapeUtils
/**
* Request container with the execution call
*/
class FrostRequest<out T : Any?>(val call: Call, private val invoke: (Call) -> T) {
fun invoke() = invoke(call)
}
val httpClient: OkHttpClient by lazy {
val builder = OkHttpClient.Builder()
if (BuildConfig.DEBUG)
builder.addInterceptor(
HttpLoggingInterceptor()
.setLevel(HttpLoggingInterceptor.Level.BASIC)
)
builder.build()
}
internal fun List<Pair<String, Any?>>.toForm(): FormBody {
val builder = FormBody.Builder()
forEach { (key, value) ->
val v = value?.toString() ?: ""
builder.add(key, v)
}
return builder.build()
}
internal fun List<Pair<String, Any?>>.withEmptyData(vararg key: String): List<Pair<String, Any?>> {
val newList = toMutableList()
newList.addAll(key.map { it to null })
return newList
}
internal fun String?.requestBuilder(): Request.Builder {
val builder = Request.Builder()
.header("User-Agent", USER_AGENT)
if (this != null)
builder.header("Cookie", this)
// .cacheControl(CacheControl.FORCE_NETWORK)
return builder
}
fun Request.Builder.call(): Call = httpClient.newCall(build())
/**
* Execute the call and attempt to check validity
* Valid = not blank & no "error" instance
*/
fun executeForNoError(call: Call): Boolean {
val body = call.execute().body() ?: return false
var empty = true
body.charStream().useLines { lines ->
lines.forEach {
if (it.contains("error")) return false
if (empty && it.isNotEmpty()) empty = false
}
}
return !empty
}
fun getJsonUrl(call: Call): String? {
val body = call.execute().body() ?: return null
val url = FB_JSON_URL_MATCHER.find(body.string())[1] ?: return null
return StringEscapeUtils.unescapeEcmaScript(url)
}
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