From 22f765b7b3abb4b0553b285b42bf81b24fefa224 Mon Sep 17 00:00:00 2001 From: Lars-Dominik Braun Date: Tue, 17 Jun 2008 12:36:33 +0200 Subject: lib: Move sources to src --- libpiano/xml.c | 547 --------------------------------------------------------- 1 file changed, 547 deletions(-) delete mode 100644 libpiano/xml.c (limited to 'libpiano/xml.c') diff --git a/libpiano/xml.c b/libpiano/xml.c deleted file mode 100644 index 3369074..0000000 --- a/libpiano/xml.c +++ /dev/null @@ -1,547 +0,0 @@ -/* -Copyright (c) 2008 Lars-Dominik Braun - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in -all copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -THE SOFTWARE. -*/ - -#include -#include -#include -#include -#include - -#include "piano.h" -#include "crypt.h" - -void PianoXmlStructParser (xmlNode *structRoot, - void (*callback) (char *, xmlNode *, void *), void *data); -char *PianoXmlGetNodeText (xmlNode *node); - -/* parse fault and get fault type - */ -void PianoXmlIsFaultCb (char *key, xmlNode *value, void *data) { - PianoReturn_t *ret = data; - char *valueStr = PianoXmlGetNodeText (value); - char *matchStart, *matchEnd, *matchStr; - - if (strcmp ("faultString", key) == 0) { - *ret = PIANO_RET_ERR; - /* find fault identifier in a string like this: - * com.savagebeast.radio.api.protocol.xmlrpc.RadioXmlRpcException: - * 192.168.160.78|1213101717317|AUTH_INVALID_TOKEN| - * Invalid auth token */ - if ((matchStart = strchr (valueStr, '|')) != NULL) { - if ((matchStart = strchr (matchStart+1, '|')) != NULL) { - if ((matchEnd = strchr (matchStart+1, '|')) != NULL) { - matchStr = calloc (matchEnd - (matchStart+1)+1, - sizeof (*matchStr)); - memcpy (matchStr, matchStart+1, matchEnd - - (matchStart+1)); - /* translate to our error message system */ - if (strcmp ("AUTH_INVALID_TOKEN", matchStr) == 0) { - *ret = PIANO_RET_AUTH_TOKEN_INVALID; - } else if (strcmp ("AUTH_INVALID_USERNAME_PASSWORD", - matchStr) == 0) { - *ret = PIANO_RET_AUTH_USER_PASSWORD_INVALID; - } else { - *ret = PIANO_RET_ERR; - printf (PACKAGE ": Unknown error %s in %s\n", - matchStr, valueStr); - } - free (matchStr); - } - } - } - } -} - -/* check whether pandora returned an error or not - * @param document root of xml doc - * @return _RET_OK or fault code (_RET_*) - */ -PianoReturn_t PianoXmlIsFault (xmlNode *docRoot) { - xmlNode *faultStruct; - PianoReturn_t ret; - - /* FIXME: we could get into troubles when fault is not the first child - * (pandora yould add whitespace e.g.) */ - if (docRoot->children != NULL && - docRoot->children->type == XML_ELEMENT_NODE && - xmlStrEqual (docRoot->children->name, (xmlChar *) "fault")) { - /* FIXME: detect fault type */ - faultStruct = docRoot->children->children->children; - PianoXmlStructParser (faultStruct, PianoXmlIsFaultCb, &ret); - return ret; - } - return PIANO_RET_OK; -} - -/* parses things like this: - * - * - * - * - * - * - * - * @param xml node named "struct" (or containing a similar structure) - * @param who wants to use this data? callback: content of as - * string, content of as xmlNode (may contain other nodes - * or text), additional data used by callback(); don't forget - * to *copy* data taken from or as they will be - * freed soon - * @param extra data for callback - */ -void PianoXmlStructParser (xmlNode *structRoot, - void (*callback) (char *, xmlNode *, void *), void *data) { - - xmlNode *curNode, *memberNode, *valueNode; - xmlChar *key; - - /* get all nodes */ - for (curNode = structRoot->children; curNode; curNode = curNode->next) { - if (curNode->type == XML_ELEMENT_NODE && - xmlStrEqual ((xmlChar *) "member", curNode->name)) { - key = NULL; - valueNode = NULL; - /* check children for or */ - for (memberNode = curNode->children; memberNode; - memberNode = memberNode->next) { - if (memberNode->type == XML_ELEMENT_NODE) { - if (xmlStrEqual ((xmlChar *) "name", memberNode->name)) { - key = memberNode->children->content; - } else if (xmlStrEqual ((xmlChar *) "value", - memberNode->name)) { - valueNode = memberNode->children; - } - } - } - /* this will ignore empty nodes, but well... */ - if (key != NULL && valueNode != NULL) { - (*callback) ((char *) key, valueNode, data); - } - } - } -} - -/* create xml parser from string - * @param xml document - * @param returns document pointer (needed to free memory later) - * @param returns document root - * @return _RET_ERR or _RET_OK - */ -PianoReturn_t PianoXmlInitDoc (char *xml, xmlDocPtr *doc, xmlNode **docRoot) { - *doc = xmlReadDoc ((xmlChar *) xml, NULL, NULL, 0); - PianoReturn_t ret; - - if (*doc == NULL) { - printf (PACKAGE ": error while parsing this xml document\n%s\n", xml); - return PIANO_RET_XML_INVALID; - } - - *docRoot = xmlDocGetRootElement (*doc); - - if ((ret = PianoXmlIsFault (*docRoot)) != PIANO_RET_OK) { - return ret; - } - - return PIANO_RET_OK; -} - -/* get text from nodes; some of them have , - * or subnodes, just ignore them - * @param xml node - */ -char *PianoXmlGetNodeText (xmlNode *node) { - /* FIXME: this is not the correct way; we should check the node type - * as well */ - if (node->content != NULL) { - return (char *) node->content; - } else if (node->children != NULL && - node->children->content != NULL) { - return (char *) node->children->content; - } - return NULL; -} - -/* structParser callback; writes userinfo to PianoUserInfo structure - * @param value identifier - * @param value node - * @param pointer to userinfo structure - * @return nothing - */ -void PianoXmlParseUserinfoCb (char *key, xmlNode *value, void *data) { - PianoUserInfo_t *user = data; - char *valueStr = PianoXmlGetNodeText (value); - - /* FIXME: should be continued later */ - if (strcmp ("webAuthToken", key) == 0) { - user->webAuthToken = strdup (valueStr); - } else if (strcmp ("authToken", key) == 0) { - user->authToken = strdup (valueStr); - } else if (strcmp ("listenerId", key) == 0) { - user->listenerId = strdup (valueStr); - } -} - -void PianoXmlParseStationsCb (char *key, xmlNode *value, void *data) { - PianoStation_t *station = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("stationName", key) == 0) { - station->name = strdup (valueStr); - } else if (strcmp ("stationId", key) == 0) { - station->id = strdup (valueStr); - } -} - -/* FIXME: copy & waste */ -void PianoXmlParsePlaylistCb (char *key, xmlNode *value, void *data) { - PianoSong_t *song = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("audioURL", key) == 0) { - /* last 48 chars of audioUrl are encrypted, but they put the key - * into the door's lock; dumb pandora... */ - const char urlTailN = 48; - char *urlTail, *urlTailCrypted = valueStr + (strlen (valueStr) - urlTailN); - urlTail = PianoDecryptString (urlTailCrypted); - song->audioUrl = calloc (strlen (valueStr) + 1, sizeof (char)); - strncpy (song->audioUrl, valueStr, strlen (valueStr) - urlTailN); - /* FIXME: the key seems to be broken... so ignore 8 x 0x08 postfix; - * urlTailN/2 because the encrypted hex string is now decoded */ - strncat (song->audioUrl, urlTail, (urlTailN/2)-8); - free (urlTail); - - } else if (strcmp ("artistSummary", key) == 0) { - song->artist = strdup (valueStr); - } else if (strcmp ("musicId", key) == 0) { - song->musicId = strdup (valueStr); - } else if (strcmp ("matchingSeed", key) == 0) { - song->matchingSeed = strdup (valueStr); - } else if (strcmp ("userSeed", key) == 0) { - song->userSeed = strdup (valueStr); - } else if (strcmp ("focusTraitId", key) == 0) { - song->focusTraitId = strdup (valueStr); - } else if (strcmp ("songTitle", key) == 0) { - song->title = strdup (valueStr); - } else if (strcmp ("rating", key) == 0) { - if (strcmp (valueStr, "1") == 0) { - song->rating = PIANO_RATE_LOVE; - } else { - song->rating = PIANO_RATE_NONE; - } - } -} - -/* parses userinfos sent by pandora as login response - * @param piano handle - * @param utf-8 string - * @return _RET_OK or error - */ -PianoReturn_t PianoXmlParseUserinfo (PianoHandle_t *ph, char *xml) { - xmlNode *docRoot; - xmlDocPtr doc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - /* */ - xmlNode *structRoot = docRoot->children->children->children->children; - PianoXmlStructParser (structRoot, PianoXmlParseUserinfoCb, &ph->user); - - xmlFreeDoc (doc); - return PIANO_RET_OK; -} - -/* parse stations returned by pandora - * @param piano handle - * @param xml returned by pandora - * @return _RET_OK or error - */ -PianoReturn_t PianoXmlParseStations (PianoHandle_t *ph, char *xml) { - xmlNode *docRoot, *curNode; - xmlDocPtr doc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - /* */ - xmlNode *dataRoot = docRoot->children->children->children->children->children; - for (curNode = dataRoot->children; curNode; curNode = curNode->next) { - if (curNode->type == XML_ELEMENT_NODE && - xmlStrEqual ((xmlChar *) "value", curNode->name)) { - PianoStation_t *tmpStation = calloc (1, sizeof (*tmpStation)); - PianoXmlStructParser (curNode->children, - PianoXmlParseStationsCb, tmpStation); - /* start new linked list or append */ - if (ph->stations == NULL) { - ph->stations = tmpStation; - } else { - PianoStation_t *curStation = ph->stations; - while (curStation->next != NULL) { - curStation = curStation->next; - } - curStation->next = tmpStation; - } - } - } - - xmlFreeDoc (doc); - return PIANO_RET_OK; -} - -/* parse "create station" answer (it returns a new station structure) - * @param piano handle - * @param xml document - * @return nothing yet - */ -PianoReturn_t PianoXmlParseCreateStation (PianoHandle_t *ph, char *xml) { - xmlNode *docRoot; - xmlDocPtr doc; - PianoStation_t *tmpStation; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - /* get node */ - xmlNode *dataRoot = docRoot->children->children->children->children; - tmpStation = calloc (1, sizeof (*tmpStation)); - PianoXmlStructParser (dataRoot, PianoXmlParseStationsCb, tmpStation); - /* FIXME: copy & waste */ - /* start new linked list or append */ - if (ph->stations == NULL) { - ph->stations = tmpStation; - } else { - PianoStation_t *curStation = ph->stations; - while (curStation->next != NULL) { - curStation = curStation->next; - } - curStation->next = tmpStation; - } - - xmlFreeDoc (doc); - - return PIANO_RET_OK; -} - -/* parses playlist; used when searching too - * @param piano handle - * @param xml document - */ -PianoReturn_t PianoXmlParsePlaylist (PianoHandle_t *ph, char *xml) { - xmlNode *docRoot, *curNode; - xmlDocPtr doc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - /* */ - xmlNode *dataRoot = docRoot->children->children->children->children->children; - for (curNode = dataRoot->children; curNode; curNode = curNode->next) { - if (curNode->type == XML_ELEMENT_NODE && - xmlStrEqual ((xmlChar *) "value", curNode->name)) { - PianoSong_t *tmpSong = calloc (1, sizeof (*tmpSong)); - PianoXmlStructParser (curNode->children, - PianoXmlParsePlaylistCb, tmpSong); - /* begin linked list or append */ - if (ph->playlist == NULL) { - ph->playlist = tmpSong; - } else { - PianoSong_t *curSong = ph->playlist; - while (curSong->next != NULL) { - curSong = curSong->next; - } - curSong->next = tmpSong; - } - } - } - - xmlFreeDoc (doc); - - return PIANO_RET_OK; -} - -/* parse simple answers like this: - * 1 - * - * @param xml string - * @return - */ -PianoReturn_t PianoXmlParseSimple (char *xml) { - xmlNode *docRoot; - xmlDocPtr doc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (xml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - xmlNode *val = docRoot->children->children->children->children; - if (xmlStrEqual (val->content, (xmlChar *) "1")) { - ret = PIANO_RET_OK; - } else { - ret = PIANO_RET_ERR; - } - - xmlFreeDoc (doc); - - return ret; -} - -/* xml struct parser callback, used in PianoXmlParseSearchCb - */ -void PianoXmlParseSearchArtistCb (char *key, xmlNode *value, void *data) { - PianoArtist_t *artist = data; - char *valueStr = PianoXmlGetNodeText (value); - - if (strcmp ("artistName", key) == 0) { - artist->name = strdup (valueStr); - } else if (strcmp ("musicId", key) == 0) { - artist->musicId = strdup (valueStr); - } -} - -/* callback for xml struct parser used in PianoXmlParseSearch, "switch" for - * PianoXmlParseSearchArtistCb and PianoXmlParsePlaylistCb - */ -void PianoXmlParseSearchCb (char *key, xmlNode *value, void *data) { - PianoSearchResult_t *searchResult = data; - - if (strcmp ("artists", key) == 0) { - xmlNode *curNode; - - /* skip */ - for (curNode = value->children->children; curNode; - curNode = curNode->next) { - if (curNode->type == XML_ELEMENT_NODE && - xmlStrEqual ((xmlChar *) "value", curNode->name)) { - - PianoArtist_t *artist = calloc (1, sizeof (*artist)); - memset (artist, 0, sizeof (*artist)); - - PianoXmlStructParser (curNode->children, - PianoXmlParseSearchArtistCb, artist); - - /* add result to linked list */ - if (searchResult->artists == NULL) { - searchResult->artists = artist; - } else { - PianoArtist_t *curArtist = searchResult->artists; - while (curArtist->next != NULL) { - curArtist = curArtist->next; - } - curArtist->next = artist; - } - } - } - } else if (strcmp ("songs", key) == 0) { - xmlNode *curNode; - - for (curNode = value->children->children; curNode; - curNode = curNode->next) { - if (curNode->type == XML_ELEMENT_NODE && - xmlStrEqual ((xmlChar *) "value", curNode->name)) { - /* FIXME: copy & waste */ - PianoSong_t *tmpSong = calloc (1, sizeof (*tmpSong)); - PianoXmlStructParser (curNode->children, - PianoXmlParsePlaylistCb, tmpSong); - /* begin linked list or append */ - if (searchResult->songs == NULL) { - searchResult->songs = tmpSong; - } else { - PianoSong_t *curSong = searchResult->songs; - while (curSong->next != NULL) { - curSong = curSong->next; - } - curSong->next = tmpSong; - } - } - } - } -} - -/* parse search result; searchResult is nulled before use - * @param xml document - * @param returns search result - * @return nothing yet - */ -PianoReturn_t PianoXmlParseSearch (char *searchXml, - PianoSearchResult_t *searchResult) { - xmlNode *docRoot; - xmlDocPtr doc; - PianoReturn_t ret; - - if ((ret = PianoXmlInitDoc (searchXml, &doc, &docRoot)) != PIANO_RET_OK) { - return ret; - } - - xmlNode *structRoot = docRoot->children->children->children->children; - /* we need a "clean" search result (with null pointers) */ - memset (searchResult, 0, sizeof (*searchResult)); - PianoXmlStructParser (structRoot, PianoXmlParseSearchCb, searchResult); - - xmlFreeDoc (doc); - - return PIANO_RET_OK; -} - -/* encode reserved xml chars - * @param encode this - * @return encoded string - */ -char *PianoXmlEncodeString (const char *s) { - char *replacements[] = {"&&", "''", "\""", "<<", ">>"}; - char *s_new = NULL; - unsigned int s_new_n = 0; - unsigned int i; - char found = 0; - - s_new_n = strlen (s) + 1; - s_new = calloc (s_new_n, 1); - - while (*s) { - found = 0; - for (i = 0; i < sizeof (replacements) / sizeof (*replacements); i++) { - if (*s == replacements[i][0]) { - /* replacements[i]+1 is our replacement, and -1 'cause we - * "overwrite" one byte */ - s_new_n += strlen (replacements[i]+1)-1; - s_new = realloc (s_new, s_new_n); - strncat (s_new, replacements[i]+1, strlen (replacements[i]+1)); - found = 1; - /* no need to look for other entities */ - break; - } - } - if (!found) { - strncat (s_new, s, 1); - } - s++; - } - return s_new; -} -- cgit v1.2.3