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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html><head><title>Python: module ranger.__main__</title>
</head><body bgcolor="#f0f0f8">

<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="heading">
<tr bgcolor="#7799ee">
<td valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="ranger.html"><font color="#ffffff">ranger</font></a>.__main__</strong></big></big> (version 1.0.4)</font></td
><td align=right valign=bottom
><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:/home/hut/ranger/ranger/__main__.py">/home/hut/ranger/ranger/__main__.py</a></font></td></tr></table>
    <p><tt>#&nbsp;coding=utf-8<br>
#<br>
#&nbsp;Copyright&nbsp;(C)&nbsp;2009,&nbsp;2010&nbsp;&nbsp;Roman&nbsp;Zimbelmann&nbsp;&lt;romanz@lavabit.com&gt;<br>
#<br>
#&nbsp;This&nbsp;program&nbsp;is&nbsp;free&nbsp;software:&nbsp;you&nbsp;can&nbsp;redistribute&nbsp;it&nbsp;and/or&nbsp;modify<br>
#&nbsp;it&nbsp;under&nbsp;the&nbsp;terms&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;as&nbsp;published&nbsp;by<br>
#&nbsp;the&nbsp;Free&nbsp;Software&nbsp;Foundation,&nbsp;either&nbsp;version&nbsp;3&nbsp;of&nbsp;the&nbsp;License,&nbsp;or<br>
#&nbsp;(at&nbsp;your&nbsp;option)&nbsp;any&nbsp;later&nbsp;version.<br>
#<br>
#&nbsp;This&nbsp;program&nbsp;is&nbsp;distributed&nbsp;in&nbsp;the&nbsp;hope&nbsp;that&nbsp;it&nbsp;will&nbsp;be&nbsp;useful,<br>
#&nbsp;but&nbsp;WITHOUT&nbsp;ANY&nbsp;WARRANTY;&nbsp;without&nbsp;even&nbsp;the&nbsp;implied&nbsp;warranty&nbsp;of<br>
#&nbsp;MERCHANTABILITY&nbsp;or&nbsp;FITNESS&nbsp;FOR&nbsp;A&nbsp;PARTICULAR&nbsp;PURPOSE.&nbsp;&nbsp;See&nbsp;the<br>
#&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License&nbsp;for&nbsp;more&nbsp;details.<br>
#<br>
#&nbsp;You&nbsp;should&nbsp;have&nbsp;received&nbsp;a&nbsp;copy&nbsp;of&nbsp;the&nbsp;GNU&nbsp;General&nbsp;Public&nbsp;License<br>
#&nbsp;along&nbsp;with&nbsp;this&nbsp;program.&nbsp;&nbsp;If&nbsp;not,&nbsp;see&nbsp;&lt;<a href="http://www.gnu.org/licenses/">http://www.gnu.org/licenses/</a>&gt;.</tt></p>
<p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#aa55cc">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
    
<tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="ranger.ext.curses_interrupt_handler.html">ranger.ext.curses_interrupt_handler</a><br>
</td><td width="25%" valign=top><a href="os.html">os</a><br>
</td><td width="25%" valign=top><a href="ranger.html">ranger</a><br>
</td><td width="25%" valign=top><a href="sys.html">sys</a><br>
</td></tr></table></td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#eeaa77">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
    
<tr><td bgcolor="#eeaa77"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><dl><dt><a name="-load_settings"><strong>load_settings</strong></a>(fm, clean)</dt></dl>
 <dl><dt><a name="-main"><strong>main</strong></a>()</dt><dd><tt>initialize&nbsp;objects&nbsp;and&nbsp;run&nbsp;the&nbsp;filemanager</tt></dd></dl>
 <dl><dt><a name="-parse_arguments"><strong>parse_arguments</strong></a>()</dt><dd><tt>Parse&nbsp;the&nbsp;program&nbsp;arguments</tt></dd></dl>
 <dl><dt><a name="-signal"><strong>signal</strong></a>(...)</dt><dd><tt><a href="#-signal">signal</a>(sig,&nbsp;action)&nbsp;-&gt;&nbsp;action<br>
&nbsp;<br>
Set&nbsp;the&nbsp;action&nbsp;for&nbsp;the&nbsp;given&nbsp;signal.&nbsp;&nbsp;The&nbsp;action&nbsp;can&nbsp;be&nbsp;SIG_DFL,<br>
SIG_IGN,&nbsp;or&nbsp;a&nbsp;callable&nbsp;Python&nbsp;object.&nbsp;&nbsp;The&nbsp;previous&nbsp;action&nbsp;is<br>
returned.&nbsp;&nbsp;See&nbsp;getsignal()&nbsp;for&nbsp;possible&nbsp;return&nbsp;values.<br>
&nbsp;<br>
***&nbsp;IMPORTANT&nbsp;NOTICE&nbsp;***<br>
A&nbsp;signal&nbsp;handler&nbsp;function&nbsp;is&nbsp;called&nbsp;with&nbsp;two&nbsp;arguments:<br>
the&nbsp;first&nbsp;is&nbsp;the&nbsp;signal&nbsp;number,&nbsp;the&nbsp;second&nbsp;is&nbsp;the&nbsp;interrupted&nbsp;stack&nbsp;frame.</tt></dd></dl>
</td></tr></table><p>
<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
<tr bgcolor="#55aa55">
<td colspan=3 valign=bottom>&nbsp;<br>
<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
    
<tr><td bgcolor="#55aa55"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
<td width="100%"><strong>DEFAULT_CONFDIR</strong> = '~/.ranger'<br>
<strong>LC_ALL</strong> = 6<br>
<strong>SIGINT</strong> = 2<br>
<strong>SUPPRESS_HELP</strong> = 'SUPPRESSHELP'<br>
<strong>USAGE</strong> = '%prog [options] [path/filename]'<br>
<strong>__version__</strong> = '1.0.4'</td></tr></table>
</body></html>
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package main

import (
	"crypto/sha256"
	"fmt"
	"log"
	"net/http"
	"strconv"
	"strings"

	"github.com/getwtxt/registry"
	"github.com/gorilla/mux"
)

func apiErrCheck(err error, r *http.Request) {
	if err != nil {
		uip := getIPFromCtx(r.Context())
		log.Printf("*** %v :: %v %v :: %v\n", uip, r.Method, r.URL, err.Error())
	}
}

// Takes the output of queries and formats it for
// an HTTP response. Iterates over the string slice,
// appending each entry to a byte slice, and adding
// newlines where appropriate.
func parseQueryOut(out []string) []byte {
	var data []byte

	for i, e := range out {
		data = append(data, []byte(e)...)

		if !strings.HasSuffix(e, "\n") && i != len(out)-1 {
			data = append(data, byte('\n'))
		}
	}

	return data
}

// Removes duplicate statuses from query output
func uniq(str []string) []string {
	keys := make(map[string]bool)
	out := []string{}
	for _, e := range str {
		if _, ok := keys[e]; !ok {
			keys[e] = true
			out = append(out, e)
		}
	}
	return out
}

// apiUserQuery is called via apiEndpointHandler when
// the endpoint is "users" and r.FormValue("q") is not empty.
// It queries the registry cache for users or user URLs
// matching the term supplied via r.FormValue("q")
func apiEndpointQuery(w http.ResponseWriter, r *http.Request) error {
	query := r.FormValue("q")
	urls := r.FormValue("url")
	pageVal := r.FormValue("page")
	var out []string
	var err error

	pageVal = strings.TrimSpace(pageVal)
	page, err := strconv.Atoi(pageVal)
	if err != nil {
		log.Printf("%v\n", err.Error())
	}

	vars := mux.Vars(r)
	endpoint := vars["endpoint"]

	// Handle user URL queries first, then nickname queries.
	// Concatenate both outputs if they're both set.
	// Also handle mention queries and status queries.
	// If we made it this far and 'default' is matched,
	// something went very wrong.
	switch endpoint {
	case "users":
		var out2 []string
		if query != "" {
			out, err = twtxtCache.QueryUser(query)
			apiErrCheck(err, r)
		}
		if urls != "" {
			out2, err = twtxtCache.QueryUser(urls)
			apiErrCheck(err, r)
		}

		if query != "" && urls != "" {
			out = joinQueryOuts(out2)
		}

	case "mentions":
		if urls == "" {
			return fmt.Errorf("missing URL in mention query")
		}
		urls += ">"
		out, err = twtxtCache.QueryInStatus(urls)
		apiErrCheck(err, r)

	case "tweets":
		out = compositeStatusQuery(query, r)

	default:
		return fmt.Errorf("endpoint query, no cases match")
	}

	out = registry.ReduceToPage(page, out)
	data := parseQueryOut(out)

	etag := fmt.Sprintf("%x", sha256.Sum256(data))
	w.Header().Set("ETag", etag)
	w.Header().Set("Content-Type", txtutf8)

	_, err = w.Write(data)

	return err
}

func joinQueryOuts(data ...[]string) []string {
	single := []string{}
	for _, e := range data {
		single = append(single, e...)
	}
	single = uniq(single)

	return single
}

func compositeStatusQuery(query string, r *http.Request) []string {
	query = strings.ToLower(query)
	out, err := twtxtCache.QueryInStatus(query)
	apiErrCheck(err, r)

	query = strings.Title(query)
	out2, err := twtxtCache.QueryInStatus(query)
	apiErrCheck(err, r)

	query = strings.ToUpper(query)
	out3, err := twtxtCache.QueryInStatus(query)
	apiErrCheck(err, r)

	final := joinQueryOuts(out, out2, out3)
	return final
}