/* Snownews - A lightweight console RSS newsreader * $Id: setup.c 1159 2005-09-13 19:51:13Z kiza $ * * Copyright 2003-2004 Oliver Feiler * http://kiza.kcore.de/software/snownews/ * * setup.c * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ #include #include #include #include #include #include #include #include #include "config.h" #include "cookies.h" #include "categories.h" #include "ui-support.h" #include "version.h" #include "main.h" #include "setup.h" #include "io-internal.h" struct feed *first_ptr = NULL; struct entity *first_entity = NULL; struct keybindings keybindings; struct color color; char *browser; /* Browser command. lynx is standard. */ char *proxyname; /* Hostname of proxyserver. */ char *useragent; /* Snownews User-Agent string. */ unsigned short proxyport = 0; /* Port on proxyserver to use. */ int use_colors = 1; /* Default to enabled. */ /* Load browser command from ~./snownews/browser. */ void SetupBrowser (const char * file) { char filebuf[256]; FILE *configfile; configfile = fopen (file, "r"); if (configfile == NULL) { UIStatus (_("Creating new config \"browser\"..."), 0, 0); configfile = fopen (file, "w+"); if (configfile == NULL) MainQuit (_("Create initial configfile \"config\""), strerror(errno)); /* Still didn't work? */ browser = strdup("lynx %s"); fputs (browser, configfile); fclose (configfile); } else { /* Careful not to overflow char browser! */ fgets (filebuf, sizeof(filebuf), configfile); browser = strdup(filebuf); fclose (configfile); /* Die newline, die! */ if (browser[strlen(browser)-1] == '\n') browser[strlen(browser)-1] = '\0'; } } /* Parse http_proxy environment variable and define proxyname and proxyport. */ void SetupProxy (void) { char *freeme; char *proxystring; char *tmp; /* Check for proxy environment variable. */ if (getenv("http_proxy") != NULL) { /* The pointer returned by getenv must not be altered. What about mentioning this in the manpage of getenv? */ proxystring = strdup(getenv("http_proxy")); freeme = proxystring; strsep (&proxystring, "/"); if (proxystring != NULL) { strsep (&proxystring, "/"); } else { free (freeme); return; } if (proxystring != NULL) { tmp = strsep (&proxystring, ":"); proxyname = strdup(tmp); } else { free (freeme); return; } if (proxystring != NULL) { proxyport = atoi (strsep (&proxystring, "/")); } else { free (freeme); return; } free (freeme); } } /* Construct the user agent string that snownews sends to the webserver. This includes Snownews/VERSION, OS name and language setting. */ void SetupUserAgent (void) { char *lang; char url[] = "http://snownews.kcore.de/"; int ualen, urllen; urllen = strlen(url); /* Constuct the User-Agent string of snownews. This is done here in program init, because we need to do it exactly once and it will never change while the program is running. */ if (getenv("LANG") != NULL) { lang = getenv("LANG"); /* Snonews/VERSION (Linux; de_DE; (http://kiza.kcore.de/software/snownews/) */ ualen = strlen("Snownews/") + strlen(VERSION) + 2 + strlen(lang) + 2 + strlen(OS)+2 + urllen + 2; useragent = malloc(ualen); snprintf (useragent, ualen, "Snownews/%s (%s; %s; %s)", VERSION, OS, lang, url); } else { /* "Snownews/" + VERSION + "(http://kiza.kcore.de/software/snownews/)" */ ualen = strlen("Snownews/") + strlen(VERSION) + 2 + strlen(OS) + 2 + urllen + 2; useragent = malloc(ualen); snprintf (useragent, ualen, "Snownews/%s (%s; %s)", VERSION, OS, url); } } /* Define global keybindings and load user customized bindings. */ void SetupKeybindings (const char * file) { char filebuf[128]; char *freeme, *tmpbuf; FILE *configfile; /* Define default values for keybindings. If some are defined differently in the keybindings file they will be overwritten. If some are missing or broken/wrong these are sane defaults. */ keybindings.next = 'n'; keybindings.prev = 'p'; keybindings.prevmenu = 'q'; keybindings.quit = 'q'; keybindings.addfeed = 'a'; keybindings.deletefeed = 'D'; keybindings.markread = 'm'; keybindings.markallread = 'm'; keybindings.markunread = 'M'; keybindings.dfltbrowser = 'B'; keybindings.moveup = 'P'; keybindings.movedown = 'N'; keybindings.feedinfo = 'i'; keybindings.reload = 'r'; keybindings.reloadall = 'R'; keybindings.forcereload = 'T'; keybindings.urljump = 'o'; keybindings.urljump2 = 'O'; keybindings.changefeedname = 'c'; keybindings.sortfeeds = 's'; keybindings.pup = 'b'; keybindings.pdown = ' '; keybindings.home = '<'; keybindings.end = '>'; keybindings.categorize = 'C'; keybindings.filter = 'f'; keybindings.filtercurrent = 'g'; keybindings.nofilter = 'F'; keybindings.help = 'h'; keybindings.about = 'A'; keybindings.perfeedfilter = 'e'; keybindings.andxor = 'X'; keybindings.enter = 'l'; keybindings.newheadlines = 'H'; keybindings.typeahead = '/'; configfile = fopen (file, "r"); if (configfile != NULL) { /* Read keybindings and populate keybindings struct. */ while (!feof(configfile)) { if ((fgets (filebuf, sizeof(filebuf), configfile)) == NULL) break; if (strstr(filebuf, "#") != NULL) continue; tmpbuf = strdup(filebuf); /* strsep only works on *ptr */ freeme = tmpbuf; /* Save start pos. This is also the string we need to compare. strsep will \0 the delimiter. */ strsep (&tmpbuf, ":"); /* Munch trailing newline and avoid \n being bound to a function if no key is defined. */ if (tmpbuf != NULL) tmpbuf[strlen(tmpbuf)-1] = 0; if (strcmp (freeme, "next item") == 0) keybindings.next = tmpbuf[0]; else if (strcmp (freeme, "previous item") == 0) keybindings.prev = tmpbuf[0]; else if (strcmp (freeme, "return to previous menu") == 0) keybindings.prevmenu = tmpbuf[0]; else if (strcmp (freeme, "quit") == 0) keybindings.quit = tmpbuf[0]; else if (strcmp (freeme, "add feed") == 0) keybindings.addfeed = tmpbuf[0]; else if (strcmp (freeme, "delete feed") == 0) keybindings.deletefeed = tmpbuf[0]; else if (strcmp (freeme, "mark feed as read") == 0) keybindings.markread = tmpbuf[0]; else if (strcmp (freeme, "mark item unread") == 0) keybindings.markunread = tmpbuf[0]; else if (strcmp (freeme, "mark all as read") == 0) keybindings.markallread = tmpbuf[0]; else if (strcmp (freeme, "change default browser") == 0) keybindings.dfltbrowser = tmpbuf[0]; else if (strcmp (freeme, "sort feeds") == 0) keybindings.sortfeeds = tmpbuf[0]; else if (strcmp (freeme, "move item up") == 0) keybindings.moveup = tmpbuf[0]; else if (strcmp (freeme, "move item down") == 0) keybindings.movedown = tmpbuf[0]; else if (strcmp (freeme, "show feedinfo") == 0) keybindings.feedinfo = tmpbuf[0]; else if (strcmp (freeme, "reload feed") == 0) keybindings.reload = tmpbuf[0]; else if (strcmp (freeme, "force reload feed") == 0) keybindings.forcereload = tmpbuf[0]; else if (strcmp (freeme, "reload all feeds") == 0) keybindings.reloadall = tmpbuf[0]; else if (strcmp (freeme, "open url") == 0) keybindings.urljump = tmpbuf[0]; else if (strcmp (freeme, "open item url in overview") == 0) keybindings.urljump2 = tmpbuf[0]; else if (strcmp (freeme, "change feedname") == 0) keybindings.changefeedname = tmpbuf[0]; else if (strcmp (freeme, "page up") == 0) keybindings.pup = tmpbuf[0]; else if (strcmp (freeme, "page down") == 0) keybindings.pdown = tmpbuf[0]; else if (strcmp (freeme, "top") == 0) keybindings.home = tmpbuf[0]; else if (strcmp (freeme, "bottom") == 0) keybindings.end = tmpbuf[0]; else if (strcmp (freeme, "categorize feed") == 0) keybindings.categorize = tmpbuf[0]; else if (strcmp (freeme, "apply filter") == 0) keybindings.filter = tmpbuf[0]; else if (strcmp (freeme, "only current category") == 0) keybindings.filtercurrent = tmpbuf[0]; else if (strcmp (freeme, "remove filter") == 0) keybindings.nofilter = tmpbuf[0]; else if (strcmp (freeme, "per feed filter") == 0) keybindings.perfeedfilter = tmpbuf[0]; else if (strcmp (freeme, "help menu") == 0) keybindings.help = tmpbuf[0]; else if (strcmp (freeme, "about") == 0) keybindings.about = tmpbuf[0]; else if (strcmp (freeme, "toggle AND/OR filtering") == 0) keybindings.andxor = tmpbuf[0]; else if (strcmp (freeme, "enter") == 0) keybindings.enter = tmpbuf[0]; else if (strcmp (freeme, "show new headlines") == 0) keybindings.newheadlines = tmpbuf[0]; else if (strcmp (freeme, "type ahead find") == 0) keybindings.typeahead = tmpbuf[0]; free (freeme); } /* Override old default settings and make sure there is no clash. */ /* Default browser is now B; b moved to page up. */ if (keybindings.dfltbrowser == 'b') { keybindings.dfltbrowser = 'B'; } fclose (configfile); } configfile = fopen (file, "w+"); fputs ("# Snownews keybindings configfile\n", configfile); fputs ("# Main menu bindings\n", configfile); fprintf (configfile, "add feed:%c\n", keybindings.addfeed); fprintf (configfile, "delete feed:%c\n", keybindings.deletefeed); fprintf (configfile, "reload all feeds:%c\n", keybindings.reloadall); fprintf (configfile, "change default browser:%c\n", keybindings.dfltbrowser); fprintf (configfile, "move item up:%c\n", keybindings.moveup); fprintf (configfile, "move item down:%c\n", keybindings.movedown); fprintf (configfile, "change feedname:%c\n", keybindings.changefeedname); fprintf (configfile, "sort feeds:%c\n", keybindings.sortfeeds); fprintf (configfile, "categorize feed:%c\n", keybindings.categorize); fprintf (configfile, "apply filter:%c\n", keybindings.filter); fprintf (configfile, "only current category:%c\n", keybindings.filtercurrent); fprintf (configfile, "mark all as read:%c\n", keybindings.markallread); fprintf (configfile, "remove filter:%c\n", keybindings.nofilter); fprintf (configfile, "per feed filter:%c\n", keybindings.perfeedfilter); fprintf (configfile, "toggle AND/OR filtering:%c\n", keybindings.andxor); fprintf (configfile, "quit:%c\n", keybindings.quit); fputs ("# Feed display menu bindings\n", configfile); fprintf (configfile, "show feedinfo:%c\n", keybindings.feedinfo); fprintf (configfile, "mark feed as read:%c\n", keybindings.markread); fprintf (configfile, "mark item unread:%c\n", keybindings.markunread); fputs ("# General keybindungs\n", configfile); fprintf (configfile, "next item:%c\n", keybindings.next); fprintf (configfile, "previous item:%c\n", keybindings.prev); fprintf (configfile, "return to previous menu:%c\n", keybindings.prevmenu); fprintf (configfile, "reload feed:%c\n", keybindings.reload); fprintf (configfile, "force reload feed:%c\n", keybindings.forcereload); fprintf (configfile, "open url:%c\n", keybindings.urljump); fprintf (configfile, "open item url in overview:%c\n", keybindings.urljump2); fprintf (configfile, "page up:%c\n", keybindings.pup); fprintf (configfile, "page down:%c\n", keybindings.pdown); fprintf (configfile, "top:%c\n", keybindings.home); fprintf (configfile, "bottom:%c\n", keybindings.end); fprintf (configfile, "enter:%c\n", keybindings.enter); fprintf (configfile, "show new headlines:%c\n", keybindings.newheadlines); fprintf (configfile, "help menu:%c\n", keybindings.help); fprintf (configfile, "about:%c\n", keybindings.about); fprintf (configfile, "type ahead find:%c\n", keybindings.typeahead); fclose (configfile); } /* Set up colors and load user customized colors. */ void SetupColors (const char * file) { char filebuf[128]; char *freeme, *tmpbuf; FILE *configfile; color.newitems = 5; color.newitemsbold = 0; color.urljump = 4; color.urljumpbold = 0; color.feedtitle = -1; color.feedtitlebold = 0; configfile = fopen (file, "r"); /* If there is a config file, read it. */ if (configfile != NULL) { while (!feof(configfile)) { if ((fgets (filebuf, sizeof(filebuf), configfile)) == NULL) break; if (strstr(filebuf, "#") != NULL) continue; tmpbuf = strdup(filebuf); /* strsep only works on *ptr */ freeme = tmpbuf; /* Save start pos. This is also the string we need to compare. strsep will \0 the delimiter. */ strsep (&tmpbuf, ":"); /* Munch trailing newline. */ if (tmpbuf != NULL) tmpbuf[strlen(tmpbuf)-1] = 0; if (strcmp (freeme, "enabled") == 0) use_colors = atoi(tmpbuf); if (strcmp (freeme, "new item") == 0) { color.newitems = atoi(tmpbuf); if (color.newitems > 7) { color.newitemsbold = 1; } else color.newitemsbold = 0; } if (strcmp (freeme, "goto url") == 0) { color.urljump = atoi(tmpbuf); if (color.urljump > 7) { color.urljumpbold = 1; } else color.urljumpbold = 0; } if (strcmp (freeme, "feedtitle") == 0) { color.feedtitle = atoi(tmpbuf); if (color.feedtitle > 7) color.feedtitlebold = 1; else color.feedtitlebold = 0; } free (freeme); } fclose (configfile); } /* Write the file. This will write all setting with their values read before and new ones with the defaults. */ configfile = fopen (file, "w+"); fputs ("# Snownews color definitons\n", configfile); fputs ("# black:0\n", configfile); fputs ("# red:1\n", configfile); fputs ("# green:2\n", configfile); fputs ("# orange:3\n", configfile); fputs ("# blue:4\n", configfile); fputs ("# magenta(tm):5\n", configfile); fputs ("# cyan:6\n", configfile); fputs ("# gray:7\n", configfile); fputs ("# brightred:9\n", configfile); fputs ("# brightgreen:10\n", configfile); fputs ("# yellow:11\n", configfile); fputs ("# brightblue:12\n", configfile); fputs ("# brightmagenta:13\n", configfile); fputs ("# brightcyan:14\n", configfile); fputs ("# white:15\n", configfile); fputs ("# no color:-1\n", configfile); fprintf (configfile, "enabled:%d\n", use_colors); fprintf (configfile, "new item:%d\n", color.newitems); fprintf (configfile, "goto url:%d\n", color.urljump); fprintf (configfile, "feedtitle:%d\n", color.feedtitle); fclose (configfile); if (use_colors) { start_color(); /* The following call will automagically implement -1 as the terminal's default color for fg/bg in init_pair. */ use_default_colors(); /* Internally used color pairs. Use with WA_BOLD to get bright color (orange->yellow, gray->white, etc). */ init_pair (10, 1, -1); /* red */ init_pair (11, 2, -1); /* green */ init_pair (12, 3, -1); /* orange */ init_pair (13, 4, -1); /* blue */ init_pair (14, 5, -1); /* magenta */ init_pair (15, 6, -1); /* cyan */ init_pair (16, 7, -1); /* gray */ /* Default terminal color color pair */ init_pair (63, -1, -1); /* Initialize all color pairs we're gonna use. */ /* New item. */ if (color.newitemsbold == 1) init_pair (2, color.newitems-8, -1); else init_pair (2, color.newitems, -1); /* Goto url line */ if (color.urljumpbold == 1) init_pair (3, color.urljump-8, -1); else init_pair (3, color.urljump, -1); /* Feed title header */ if (color.feedtitlebold == 1) init_pair (4, color.feedtitle-8, -1); else init_pair (4, color.feedtitle, -1); } } /* Load user customized entity conversion table. */ void SetupEntities (const char * file) { char filebuf[128]; char *freeme, *tmpbuf, *tmppos; FILE *configfile; struct entity *entity; configfile = fopen (file, "r"); if (configfile == NULL) { configfile = fopen (file, "w+"); fputs ("# HTML entity conversion table\n", configfile); fputs ("# \n", configfile); fputs ("# Put all entities you want to have converted into this file.\n", configfile); fputs ("# File format: &entity;[converted string/char]\n", configfile); fputs ("# Example: —--\n", configfile); fputs ("# \n", configfile); fputs ("# XML defined entities are converted by default. These are:\n# &, <, >, ', "\n", configfile); fputs ("# \n", configfile); fputs ("ää\nöö\nüü\n", configfile); fputs ("ÄÄ\nÖÖ\nÜÜ\n", configfile); fputs ("ßß\n  \n—--\n…...\n“\"\n”\"\n", configfile); fputs ("»\"\n«\"\n", configfile); fclose (configfile); configfile = fopen (file, "r"); } while (!feof(configfile)) { if ((fgets (filebuf, sizeof(filebuf), configfile)) == NULL) break; /* Discard comment lines. */ if (filebuf[0] == '#') continue; /* Entities must start with '&', otherwise discard. */ if (filebuf[0] == '&') { entity = malloc (sizeof (struct entity)); tmpbuf = strdup (filebuf); freeme = tmpbuf; /* Munch trailing newline. */ if (tmpbuf[strlen(tmpbuf)-1] == '\n') tmpbuf[strlen(tmpbuf)-1] = '\0'; /* Delete starting '&' and set pointer to beginning of entity. */ tmpbuf[0] = '\0'; tmpbuf++; tmppos = tmpbuf; strsep (&tmpbuf, ";"); entity->entity = strdup (tmppos); entity->converted_entity = strdup (tmpbuf); entity->entity_length = strlen (entity->converted_entity); entity->next_ptr = NULL; free (freeme); /* Add entity to linked list structure. */ if (first_entity == NULL) first_entity = entity; else { entity->next_ptr = first_entity; first_entity = entity; } } else continue; } } /* Create snownews' config directories if they do not exist yet, load global configuration settings and caches. Returns number of feeds successfully loaded. */ int Config (void) { char file[512]; /* File locations. */ char filebuf[2048]; char *freeme, *tmpbuf, *tmppos, *tmpstr; char *categories = NULL; /* Holds comma seperated category string. */ FILE *configfile; FILE *errorlog; struct feed *new_ptr; struct stat dirtest; int numfeeds = 0; /* Number of feeds we have. */ SetupProxy(); SetupUserAgent(); /* Set umask to 077 for all created files. */ umask(63); /* * Setup config directories. */ snprintf (file, sizeof(file), "%s/.snownews", getenv("HOME")); if ((stat (file, &dirtest)) == -1 ) { /* Create directory. */ if (mkdir (file, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) MainQuit ("Creating config directory ~/.snownews/", strerror(errno)); } else { /* Something with the name .snownews exists, let's see what it is. */ if ((dirtest.st_mode & S_IFDIR) != S_IFDIR) { MainQuit ("Creating config directory ~/.snownews/", "A file with the name \"~/.snownews/\" exists!"); } } snprintf (file, sizeof(file), "%s/.snownews/cache", getenv("HOME")); if ((stat (file, &dirtest)) == -1) { /* Create directory. */ if (mkdir (file, S_IRWXU | S_IRGRP | S_IXGRP | S_IROTH | S_IXOTH) != 0) MainQuit (_("Creating config directory ~/.snownews/cache/"), strerror(errno)); } else { if ((dirtest.st_mode & S_IFDIR) != S_IFDIR) { MainQuit ("Creating config directory ~/.snownews/cache/", "A file with the name \"~/.snownews/cache/\" exists!"); } } /* Redirect stderr to ~/.snownews/error.log Be sure to call _after_ the directory checks above! */ snprintf (file, sizeof(file), "%s/.snownews/error.log", getenv("HOME")); errorlog = fopen (file, "w+"); dup2 (fileno(errorlog), STDERR_FILENO); UIStatus (_("Reading configuration settings..."), 0, 0); snprintf (file, sizeof(file), "%s/.snownews/browser", getenv("HOME")); SetupBrowser (file); /************* * Feed list * *************/ snprintf (file, sizeof(file), "%s/.snownews/urls", getenv("HOME")); configfile = fopen (file, "r"); if (configfile == NULL) { UIStatus (_("Creating new configfile."), 0, 0); configfile = fopen (file, "w+"); if (configfile == NULL) MainQuit (_("Create initial configfile \"urls\""), strerror(errno)); /* Still didn't work? */ } else { while (!feof(configfile)) { if ((fgets (filebuf, sizeof(filebuf), configfile)) == NULL) break; if (filebuf[0] == '\n') break; numfeeds++; new_ptr = newFeedStruct(); /* Reset to NULL on every loop run! */ categories = NULL; /* File format is url|custom name|comma seperated categories */ tmpbuf = strdup (filebuf); /* Munch trailing newline. */ if (tmpbuf[strlen(tmpbuf)-1] == '\n') tmpbuf[strlen(tmpbuf)-1] = '\0'; freeme = tmpbuf; tmpstr = strsep (&tmpbuf, "|"); /* The first | was squished with \0 so we can strdup the first part. */ new_ptr->feedurl = strdup (freeme); if (strncasecmp (new_ptr->feedurl, "exec:", 5) == 0) { new_ptr->execurl = 1; } else if (strncasecmp (new_ptr->feedurl, "smartfeed:", 10) == 0) { new_ptr->smartfeed = 1; } /* Save start position of override string */ tmpstr = strsep (&tmpbuf, "|"); if (tmpstr != NULL) { if (*tmpstr != '\0') new_ptr->override = strdup (tmpstr); } tmpstr = strsep (&tmpbuf, "|"); if (tmpstr != NULL) { if (*tmpstr != '\0') categories = strdup (tmpstr); } tmpstr = strsep (&tmpbuf, "|"); if (tmpstr != NULL) { if (*tmpstr != '\0') new_ptr->perfeedfilter = strdup (tmpstr); } /* We don't need freeme anymore. */ free (freeme); /* Put categories into cat struct. */ if (categories != NULL) { freeme = categories; while (1) { tmppos = strsep (&categories, ","); if (tmppos == NULL) break; FeedCategoryAdd (new_ptr, tmppos); } free (freeme); } else new_ptr->feedcategories = NULL; /* Load cookies for this feed. But skip loading cookies for execurls. */ if (new_ptr->execurl != 1) LoadCookies (new_ptr); /* Add to bottom of pointer chain. */ new_ptr->next_ptr = NULL; if (first_ptr == NULL) { new_ptr->prev_ptr = NULL; first_ptr = new_ptr; } else { new_ptr->prev_ptr = first_ptr; while (new_ptr->prev_ptr->next_ptr != NULL) new_ptr->prev_ptr = new_ptr->prev_ptr->next_ptr; new_ptr->prev_ptr->next_ptr = new_ptr; } } } fclose (configfile); snprintf (file, sizeof(file), "%s/.snownews/keybindings", getenv("HOME")); SetupKeybindings (file); snprintf (file, sizeof(file), "%s/.snownews/colors", getenv("HOME")); SetupColors (file); snprintf (file, sizeof(file), "%s/.snownews/html_entities", getenv("HOME")); SetupEntities (file); return numfeeds; }